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Design 911 Design 911 supply Porsche parts, Porsche spares and Porsche accessories, to both retail and to the trade. Our Porsche product and accessory range includes brakes, exhausts, tyres, wheels and Porsche panels and interiors. https://www.design91.uk/images/schemaLogo.png https://www.design91.uk/images/schemaLogo.png +443456003478 https://www.design91.uk Facebook Instagram

Porsche

Porsche
About Porsche

Porsche for Porsche

Porsche genuine parts and lifestyle products for Porsche models from Design911

A Quick Look at Porsche

Porsche information on this page is based on details supplied by the manufacturer or distributor, plus any OE references provided with the parts.

Choosing the Right Fit for Your Porsche

Where Porsche is listed for Porsche, use the supplied model coverage and OE references to confirm suitability. Check details that commonly affect fitment such as model year, side/position, and connector type where relevant.

  • Typical reasons people replace these parts include maintaining originality, keeping factory specification, and choosing the latest genuine revisions for peace of mind.
  • Common real-world issues behind many Porsche repairs are age and mileage: oil leaks, cooling system fatigue, brake and suspension wear, corrosion and electrical faults from moisture or heat cycling.
  • Before ordering, confirm part numbers against VIN or option/PR codes, especially for safety‑critical or complex components.
  • When upgrading, decide whether you want pure originality or performance changes, as some aftermarket options may suit specific goals better than genuine.
  • For bigger jobs, replace related seals, hardware and consumables at the same time to avoid repeat labour and compatibility issues.
  • Where available, follow the manufacturer’s fitting and bedding‑in guidance to get the best performance and longevity.

Browse by Category

If you already know the area you are working on, start with the category and then filter by Porsche model. Where real-world symptoms and typical reasons to replace are provided, use them to keep the wording grounded.

Brakes — Brake components are renewed to restore stopping performance, address wear or upgrade a Porsche for fast road or track use. Common symptoms include: Common symptoms include vibration under braking, increased stopping distances, squealing, pulling to one side, warning lights and visible wear to discs and pads.

  • Check whether the parts are OE-equivalent replacements or performance upgrades and match this to how the Porsche is used.
  • Follow any recommended bedding-in procedure and consider replacing discs, pads, sensors and fitting hardware together where advised.

Clothing & Gifts — Porsche-themed clothing and gifts let owners and enthusiasts show their passion off the road, or make ideal presents for fans of the marque. Common symptoms include: Items may become worn, faded, damaged or go out of style, prompting replacement with newer designs.

  • Review available size, colour and material details to help choose the right item and ensure it matches how it will be used.
  • Check any care or washing guidance so garments and accessories keep their appearance for longer.

Lifestyle — To explore different Porsche-inspired lifestyle products or gift ideas. Common symptoms include: General wear from handling or display.

  • Confirm whether items are official Porsche lifestyle products or from trusted partner brands where stated.
  • Consider who the item is for and how it will be used day to day to select the most suitable style or product type.

Keyring — To choose a different design, material or model theme. Common symptoms include: Scratches, worn finishes or loose fittings.

  • Keyrings make simple, practical Porsche-themed gifts and can be matched to specific models or heritage designs where available.
  • If a keyring shows damage or looseness, replace it to avoid losing keys or further wear to finishes.

Size chart — The size chart acts as a practical reference tool for all apparel purchases. Common symptoms include:

Explore Porsche at Design911

View the current Porsche range for Porsche at Design911, then filter by model and category to narrow down to the right parts.

DISPLAYING 609 to 624 (of 20211 products)
Special Order item
9A110503
Product Information
Product Information
Crankcase vent valve
These are genuine Porsche crankcase vent valves (PCV valves) designed to regulate and control the flow of blow-by gases from the engine crankcase. They form part of the engine’s Positive Crankcase Ventilation (PCV) / Air-Oil Separator (AOS) system, ensuring correct venting and preventing unwanted oil vapour or pressure build-up.

Fits:
Porsche 997.2 Carrera 2009 - 2012
Porsche 997.2 Turbo 2010 - 2013
Porsche 991.1 Carrera 2012 - 2016
Porsche 991 Turbo 2014 - 2020
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 981SP Boxster Spyder 2016
Porsche 987.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 981C Cayman GT4 2016

Diagram Ref No 5, or 8

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A110503
9A110503800
9A110503801
9A110523800
9A110503900
9A110523902

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Special Order item
9A110751501
Product Information
Product Information
Crankcase breather hose.
The 9A110751501 crankcase breather hose is a factory-specified part of the air/oil separation and PCV ventilation system used on water-cooled Porsche flat-6 engines fitted to Boxster and Cayman models. It connects the engine crankcase to the air/oil separator (AOS) or ventilation circuit, allowing crankcase gases to vent safely while directing blow-by vapours through the appropriate filtration pathway.

Fits:
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 981SP Boxster Spyder 2016
Porsche 987.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 981C Cayman GT4 2016

Diagram Ref No 3

A rubber/plastic crankcase breather hose, part of the PCV (positive crankcase ventilation) or AOS (air-oil separator) system, that channels crankcase vapours from the engine block to the AOS or intake/vent circuit.

This breather hose:
Provides a secure, correctly routed pathway for crankcase blow-by gases and vapours.
 Maintains proper crankcase ventilation, helping to prevent pressure buildup, leaks, or oil-soaked vapour recirculating into the intake.
 Helps keep the intake tract and engine internals clean by ensuring only air (not oil mist) is drawn through the AOS/PCV system, preventing carbon build-up, oil deposits, smoky exhaust, and potential sensor contamination.
•  Ensures durability and reliability under normal operating conditions, including heat, vibration, and exposure to crankcase gases and oil vapour - thanks to genuine Porsche-grade materials and manufacturing.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9A110751501
9A110751501

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Special Order item
91410317101
Product Information
Product Information
Connecting rod bolt.
The part number 91410317101 is an OE Genuine Porsche connecting rod bolt. This critical engine component is designed to secure the connecting rod to the crankshaft, ensuring reliable and high-performance engine operation.  Twelve of these bolts are typically required for one full engine assembly.
12 per engine. Price is for each.

Fits:
Porsche 911TE (1972 - 1973)
Porsche 911TV  (1972 - 1973)
Porsche 911TK (1973 - 1973)
Porsche 911S (1970 - 1973)
Porsche RS (1973 - 1973)
Porsche RSR 2.8L (1973 - 1973)
Porsche 911 2.7 (1974 - 1977)
Porsche 911 3.0L Carrera (1976 - 1977)
Porsche 911 SC 3.0L (1978 - 1983)
Porsche 911 Turbo 3.0 (1975 - 1977)

Diagram ref no 18

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

91410317101
313096000322
91410317101
91410317100

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Special Order item
99911014601
Product Information
Product Information
Flywheel-End, Shaft bearing (or pinion bearing) for 915 transmission.
The Genuine Porsche flywheel-end pinion bearing 99911014601 is the exact factory-spec bearing used in 915 transmissions from 1972–1989. This bearing supports the pinion shaft at the flywheel end, keeping it perfectly aligned for factory-correct gear operation, quietness, and longevity. It ensures the 915 gearbox shifts smoothly and prevents premature wear of gears and synchronisers.

Fits:
Porsche 911 1974 - 1989 (915 Gearbox)

Diagram Ref no 28.

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99911014601
99911014601

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Special Order item
9J1121407A
Product Information
Product Information
Coolant expansion tank bottle.
This genuine coolant expansion tank is the original-spec reservoir that forms part of the Taycan’s coolant system, responsible for managing coolant volume and pressure as the system heats and cools. Manufactured by Porsche to strict OEM standards.

Fits:
Porsche 9J1.1 Taycan 2020 - 2024

Diagram ref no 1

The coolant expansion/overflow reservoir for the Taycan’s coolant system. It collects and stores excess coolant from the closed-loop cooling circuit when temperature changes cause expansion. It also provides a visible coolant level reference and a refill point when topping-up is required.

This coolant tank:
Accepts excess coolant as it expands under heat, preventing over-pressure in the cooling system.
•  Allows coolant to return to the system when temperatures drop, helping maintain proper coolant volume and pressure.
•  Provides a clean, secure housing that resists heat, pressure, and coolant chemistry - preventing leaks and degradation.
•  Maintains correct coolant level and system integrity, vital for thermal management of batteries, motors, and inverter cooling.

When to replace.  You should consider replacing the coolant expansion tank if:
•  The original shows cracks, discoloration, deformation, or leaks.
•  Coolant level drops unexpectedly without visible external leak - indicating internal crack or cap failure.
•  The tank becomes brittle, warped, or chemically aged due to coolant exposure and heat cycles.
•  You are restoring or servicing the cooling system, or performing maintenance/replacement of hoses, pumps or thermal components.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

9J1121407A
9J1121407A

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Special Order item
90134166301
Product Information
Product Information
Thrust washer for wheel bearing, Used on the outer front wheel bearing (16 mm thrust washer).
A front wheel bearing thrust washer that sits between the outer wheel bearing and the spindle nut on the front hub assembly. It provides a controlled friction surface and distributes load when adjusting bearing preload.
Sold each - 2 required per car

Fits:
Porsche 911 1963 - 1973
Porsche 912 1965 - 1970
Porsche 914/6 2.0 1970 - 1973

Diagram ref no 35

This thrust washer:
Ensures proper wheel bearing preload by providing the correct support surface.
 Distributes torque evenly when adjusting the bearing retaining nut.
 Helps maintain smooth hub rotation and reduces bearing wear.
 Preserves correct wheel alignment and prevents unwanted play in the front hub.

A worn thrust washer can no longer hold the correct bearing preload, which can lead to wheel play, noise, or premature bearing wear. Grooves, distortion, or surface damage also affect how evenly the bearing nut tightens, reducing hub stability. Replacing the washer ensures proper bearing adjustment, smooth rotation, and safe, reliable front-wheel performance.

Replace this washer if:
  You are installing new front wheel bearings
  The existing washer shows scoring, grooves, or wear marks
  The front wheel exhibits play or noise
  You are doing a front hub rebuild or restoration
  Any deformation is visible on the washer face

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

90134166301
90134166300
90134166301

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Special Order item
982413031G
Product Information
Product Information
Front shock absorber, for cars with Sport Suspension (M030).
The 982413031G suspension strut is the original equipment front damper for Porsche Boxster / Cayman 982 (718) models equipped with the M030 Sport Suspension. It forms part of the car’s front suspension, controlling damping and rebound to ensure consistent handling, comfort, and stability under normal driving and sporty conditions. 
Sold individually, two required for a full front set.

Fits:
For cars with Sport Suspension (option code: M030)
Porsche 982 Boxster (718) 2017>>
Porsche 982C Cayman (718C) 2017>>


This strut absorbs and dampens road shocks, bumps and irregularities to deliver a controlled, stable ride. It manages both compression and rebound forces, ensuring the suspension remains responsive yet composed. Under cornering, braking, or acceleration, it helps keep the wheels planted, maintains handling precision, and supports the dynamic behaviour intended for the Sport Suspension setup. By replacing worn or fatigued dampers with a new genuine unit, you restore front-end stability, ride comfort, and the sharp, predictable steering response characteristic of a properly set-up 982 with M030.

Using a genuine Porsche strut ensures that damping and suspension geometry remain as the manufacturer intended - critical for the M030 Sport Suspension, which is engineered to deliver a sharply balanced, sporty ride and handling. A factory strut maintains ride comfort, handling precision, and long-term reliability.

You should consider replacing the strut if:
The old strut shows leaking fluid, reduced damping, or visible wear.
 The car exhibits poor handling, harsh ride, nose-dive under braking, or instability over bumps.
 You’re performing suspension maintenance or upgrades, or wish to restore OEM-spec ride and handling.
 You want to maintain original handling dynamics and resale value by keeping genuine Porsche components.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

982413031G
982413031C
982413031E
982413031G

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Special Order item
99908444501::5
Product Information
Product Information
Front control arm lock nut, M 12 X 1,5
The Porsche 99908444501 Control Arm Lock Nut is a genuine OEM fastener designed to secure critical suspension components such as the control arm, track arm or lateral arm. As a self-locking hex nut, it provides a reliable connection that maintains proper suspension geometry under load.
Sold each, 2 required per vehicle.

Fits:
Porsche 997.1 2005 - 2008
Porsche 997.2 2009 - 2012
Porsche 991.1 2012 - 2016
Porsche 991.2 2017 - 2019
Porsche 992.1 2020 - 2024
Porsche 992.2 2024>>
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 981 Boxster 2012 - 2016
Porsche 718 Boxster 2017 >>
Porsche 987C.1 Cayman 2006 - 2008
Porsche 987C.2 Cayman 2009 - 2012
Porsche 981C Cayman 2014 - 2016
Porsche 718C Cayman 2017>>

Diagram ref no 5

•  Position / Application:  Front and/or rear suspension (varies by model); Control arm, lateral arm, track arm, subframe and suspension mount connections  •    •   Function: Provides secure locking force on suspension bolts; maintains suspension geometry and prevents loosening
•   Quantity Per Vehicle: Depends on model; commonly 2–4 per front suspension assembly.

This nut is widely used across Porsche models including the 911, Boxster and Cayman, making it one of the most common suspension service hardware items. Because suspension fasteners experience high stress, vibration, and environmental exposure, its recommends replacing self-locking nuts whenever removed. Fresh OEM hardware ensures the correct clamping force, prevents unwanted movement and helps protect expensive suspension components from premature wear.

Whether you’re replacing a control arm, performing an alignment-critical repair, or completing a suspension rebuild, the 99908444501 nut guarantees factory-correct fit, strength and long-term reliability. Using genuine Porsche hardware ensures your suspension performs exactly as engineered - especially important for performance-driven Porsche models.

Related reference numbers
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99908444501
99908444501

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Special Order item
PAF008970
Product Information
Product Information
Front Wishbone Hexagon-head bolt, AM 14 X 1,5 X 92
The bolt secures the control arm / lateral-arm / track-bar assembly to the chassis or sub-frame - a critical connection in the vehicle’s suspension system.
Sold each, 2 required per vehicle.

Fits:
Porsche 991.1 2012 - 2016
Porsche 991.2 2017 - 2019
Porsche 992.1 2020 - 2024
Porsche 992.2 2024>>
Porsche 981 Boxster 2012 - 2016
Porsche 718 Boxster 2017 >>
Porsche 981C Cayman 2014 - 2016
Porsche 718C Cayman 2017>>

Diagram ref no 11

•  Function: Secures suspension arms to chassis/subframe; maintains suspension geometry under load.
•  Position / Application: Front or rear suspension (model-dependent); Control arm / lateral arm / track bar mounting
•  Superseded Part Number: 99907286201, 99907289201.
•  Quantity per Vehicle: Depends on model; commonly 2–4 per front suspension assembly

Over time, suspension bolts are exposed to significant stress, vibration, corrosion, and environmental factors. During any suspension service or component replacement, it's recommended to replace these critical fasteners to ensure proper clamping force and structural integrity. Using an original bolt ensures correct thread pitch, accurate dimensions, and manufacturer-approved material strength - critical for high-precision vehicles.

This bolt is used in many Porsche models, including the 911, 718 Boxster, and 718 Cayman, depending on the suspension configuration. Whether you're performing routine maintenance, replacing a control arm, or performing a steering repair, which is crucial for maintaining wheel alignment, installing the correct bolt helps maintain your vehicle's handling, safety, and long-term reliability.

Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAF008970
99907286201
99907289201
PAF008970

The product you are viewing cross references to these numbers
Special Order item
PAF008757
Product Information
Product Information
Front control arm Hexagon bolt M 12 X 1,5 X 105
This bolt (together with the correct washer / nut) ensures that the suspension arms remain securely fixed, holding suspension geometry correctly under load. This is crucial for steering, handling, ride comfort and safety.
Sold each, 2 required per vehicle.

Fits:
Porsche 991.1 2012 - 2016
Porsche 991.2 2017 - 2019
Porsche 992.1 2020 - 2024
Porsche 992.2 2024>>
Porsche 981 Boxster 2012 - 2016
Porsche 718 Boxster 2017 >>
Porsche 981C Cayman 2014 - 2016
Porsche 718C Cayman 2017>>

Diagram ref no 7

•  This genuine hex-head control-arm bolt (PAF008757 / 99907286401) is listed for use with front suspension / control-arm mounting on a variety of modern Porsche models.
•  Position / Application: Front suspension; Suspension control arm / track arm mounting
•  Superseded Part Number: 99907286401
•  Quantity per Vehicle: Depends on model; commonly 2–4 per front suspension assembly



Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.

PAF008757
PAF008757
99907286401

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Special Order item
98733104304
Product Information
Product Information
Control arm lower, Rear.
This lower control arm (sometimes called “rear lateral arm / suspension arm") is used for the rear suspension of Porsche 987 (Boxster / Cayman) models — covering both Gen1 and Gen2. The part is supplied as a single arm (left or right). For best results and balanced suspension behaviour, replacement of both rear arms (left + right) is recommended when bushings or joints show wear.
Sold each, Fits left and right side.

Fits:
Porsche 987.1 Boxster 2005 - 2008
Porsche 987.2 Boxster 2009 - 2012
Porsche 987C.1 Cayman 2005 - 2008
Porsche 987C.2 Cayman 2009 - 2012

Diagram ref no 8

•  Part Numbers / Cross-References: 98733104304 (current), 98733104302 / 98733104303 (previous numbers)

Position: Rear lower control arm / lateral link - connects rear axle assembly to chassis/subframe, controlling wheel lateral and longitudinal position under dynamic loading.

 Functions: Maintains correct wheel alignment geometry under load, ensures stable rear-end handling, helps manage camber and toe changes, absorbs suspension loads, supports consistent tyre contact and handling predictability.

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98733104304
98733104302
98733104303
98733104304

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Special Order item
PCG642503B
Product Information
Product Information
Navigation Software for Porsche Classic Communication Management - SD Memory Card
United Arabian Emirates (UAE) version

porsche

Modern, not classic:
This is the map software needed for your Porsche Classic Communication Management (PCCM) and Porsche Classic Communication Management Plus (PCCM Plus).

The navigation software is provided on a micro SD card.

For use on all vehicles with the PCCM or PCCM Plus;

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PCG642503B
99664250114
PCG642503B

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Special Order item
992959447H
Product Information
Product Information
Radiator / Engine cooling fan, 400 W, without carrier.
This radiator cooling fan is a direct-fit replacement for the factory 400 W electric fan used on Porsche 992 (992.1 series) models. It helps regulate engine temperature by drawing airflow through the radiator during low-speed or high-load conditions.

Fits:
Porsche 992.1 Carrera 04.11.2019 - 2024

PLEASE NOTE: Radiator fan bracket has to be transferred over to new fan or sourced separately. Not included with this fan.
Porsche part number 992121435.

Diagram ref no 2

•  Power: Rating 400 W
 400 W OEM motor delivering Porsche-specified airflow
 Ensures correct cooling performance by drawing air through the radiator stack
 Direct factory fitment into the original carrier or shroud
 Quiet, smooth operation thanks to precision-balanced blades and high-quality bearings
 Fully compatible with the vehicle’s thermal and control modules

Genuine Porsche cooling fans operate in harsh environments, facing constant heat cycles, vibration and moisture. Over time, motor bearings, windings or blade balance can degrade, reducing airflow and compromising cooling efficiency. A weakened or failing fan can allow coolant temperatures to rise-especially noticeable in slow traffic, warm climates or during extended idling.

Replacing a failing unit with a new Genuine Porsche fan ensures the cooling system functions exactly as engineered, maintaining proper operating temperatures, protecting engine components, and preserving the vehicle’s performance and reliability.

When to Replace
  Increasing coolant temperatures at idle or low speeds
 Noisy fan operation (humming, grinding or vibration)
 Fan fails to activate under high-temperature conditions
 Cooling system fault messages or stored diagnostic codes
 During radiator or condenser replacement, or when damage to blades or wiring is present

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992959447H
992959447H
992959447D
992959447B
992959447

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Special Order item
PAB907807G
Product Information
Product Information
NOx Sensor.
The NOx Sensor is a genuine OEM-spec nitrogen oxide sensor designed to measure NOx levels in the exhaust system of modern Porsche vehicles. Mounted directly in the exhaust flow, this sensor provides the Engine Control Unit (ECU) with real-time nitrogen-oxide concentration data, allowing the emissions-control system to accurately regulate combustion and after-treatment.

Fits:
  • Porsche 958 Cayenne V6 3.0L Diesel 245HP 2012-18
Cars With Engine Codes:
CVVA / CVVB / CVVC

Diagram Ref No 17

What This Product Does:

  • Monitors NOₓ emissions — it continuously measures nitrogen-oxide levels in the exhaust gas and communicates that data to the vehicle’s control unit (ECU).
  • Enables emissions control systems — in diesel engines (or gasoline engines with NOₓ after-treatment), the sensor provides feedback for systems such as Selective Catalytic Reduction (SCR) or Exhaust Gas Recirculation (EGR), to reduce NOₓ output before gas exits the tailpipe.
  • Helps regulate combustion and fuel dosing — by providing real-time exhaust composition data, the ECU can adjust parameters such as fuel injection timing, air/fuel ratio or SCR dosing (e.g. AdBlue injection) to optimise performance and emissions compliance.
  • Ensures emissions compliance — given tightening environmental laws and standards (e.g. Euro 6 in Europe), a functioning NOx sensor is essential to keep NOₓ emissions within legal limits.

Symptoms Of Failure:
  • “Check Engine” or emissions-system warning light appears on the dashboard.
  • Reduced engine performance or the vehicle entering “limp mode” — some ECUs restrict engine output when exhaust-sensor data is invalid.
  • Increased fuel consumption or poor fuel economy — incorrect NOₓ data can lead the ECU to mismanage combustion parameters.
  • Rough idle, hesitation or unstable engine behaviour, especially under acceleration or load — as exhaust-gas composition readings become unreliable.
  • Failed emissions test or legal compliance check — the car may fail inspection if NOₓ emissions exceed permitted levels due to faulty sensing/control.
  • R / AdBlue warnings (on diesel/SCR systems) — because the ECU can’t reliably monitor NOₓ output.

Why Replacement Matters:
  • Maintains emissions compliance — ensures that NOₓ output remains within legal limits under environmental regulations.
  • Preserves engine performance & efficiency — accurate NOₓ feedback enables proper combustion control, fuel efficiency, and normal throttle response.
  • Protects exhaust after-treatment hardware — catalytic converters, SCR catalysts, and associated systems depend on accurate NOₓ sensing; a faulty sensor can lead to improper dosing or damage.
  • Avoids costly repairs or legal penalties — driving with a failed NOx sensor may lead to emissions-test failure or more extensive emissions-system damage.



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PAB907807G
95860680712
95860680713
PAB907807A
PAB907807G

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Special Order item
958907807D
Product Information
Product Information
NOx Sensor.
The NOx Sensor is a genuine emissions-control component designed to monitor nitrogen oxide (NOₓ) levels in the vehicle’s exhaust system. Installed within the exhaust stream, this sensor provides real-time data to the Engine Control Unit (ECU) to regulate combustion and after-treatment systems such as catalytic converters or SCR/AdBlue systems.

Fits:
  • Porsche 958 Cayenne V6 3.0L Diesel 245HP 2012-18
Cars With Engine Codes:
CNRB

Diagram Ref No 17

What This Product Does:

  • The NOx sensor continuously monitors levels of nitrogen oxides in your exhaust gases. This data is sent to the Engine Control Unit (ECU) or the vehicle’s emissions-control module.
  • Based on NOx levels, the ECU (or emissions system) adjusts engine parameters (air-fuel ratio, exhaust after-treatment, DEF/AdBlue dosing in diesel/SCR systems, etc.) to ensure emissions stay within legal/environmental limits.
  • Helps ensure compliance with environmental regulations and reduces harmful exhaust emissions — particularly NO and NO₂, which contribute to smog, acid rain, and health hazards.
  • Supports proper functioning of components like catalytic converters or SCR (Selective Catalytic Reduction) systems by ensuring they receive accurate feedback for NOx removal. 

Symptoms Of Failure:
  • Engine warning light / emissions fault appears on the dashboard — the ECU detects abnormal or missing NOx sensor signals.
  • Reduced engine performance or “limp mode” — the ECU may limit engine output, or injection logic may suffer, leading to poor acceleration or unstable performance.
  • Increased fuel consumption or poor fuel economy — incorrect NOx data can cause the engine management system to mis-manage the air/fuel mixture.
  • Rough idle, misfires, or jerky acceleration — combustion may become uneven if exhaust feedback is wrong, especially under load or varying throttle.
  • Failed emissions or inspection test, or excessive exhaust pollution — without a working NOx sensor, the emissions-control system can’t properly regulate NOx output.
  • Potential damage to exhaust-aftertreatment components (e.g. catalytic converter or SCR system) — inaccurate NOx readings can lead to improper dosing or treatment, shortening component life.

Why Replacement Matters:
  • Compliance with Emissions Regulations: For modern diesel (and many petrol) vehicles, a working NOx sensor is often required to meet compliance standards. Without it, you may fail emissions tests.
  • Protects Engine Performance & Efficiency: A proper NOx sensor ensures the ECU has accurate exhaust feedback — leading to correct combustion, fuel economy, and stable power delivery.
  • Prevents Further Damage: Faulty NOx readings can lead to improper exhaust after-treatment (e.g. over- or under-dosing AdBlue or mismanaging catalytic converter operation), which can damage costly components downstream.
  • Environmental Responsibility: The sensor helps ensure harmful nitrogen oxides aren’t released in harmful quantities, reducing environmental harm and air-quality impact.



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958907807D
958907807D
95860680751

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Special Order item
93010551300
Product Information
Product Information
Tensioner spacer. Standard type not upgrade type.
Should be fitted with 93010505300 above.
The Genuine Porsche spacer sleeve is an original OEM component designed specifically for the timing chain tensioner assembly in Porsche 911 and 930 Turbo engines. It fits between the timing chain tensioner bracket and guide arm support, maintaining correct alignment and spacing in the factory timing drive geometry.

Fits:
Porsche 911 1968 - 1983
Porsche 930 Turbo

Diagram ref no 10A

Position on Vehicle: Inside the front timing cover area – installed in the chain/guide/tensioner zone of the flat-six engine.

 Function: Ensures precise spacing in the timing chain tensioner assembly, guaranteeing correct chain tension, optimal performance and minimal noise.

 Specification: Manufactured by Porsche, dimensioned exactly to factory tolerance, with finish and fitment that matches original componentry.

While small in size, the spacer sleeve plays a crucial role in the timing drive system:
 A missing, worn or incorrect spacer can allow the tensioner or chain guide to offset, resulting in increased slack, audible chain noise, accelerated sprocket/rail wear, or worst-case timing failure.
 Incorrect spacing may alter chain path, affect sprocket alignment and shorten component life.
 During engine rebuilds or when the timing cover is removed, it's often overlooked - but renewing this part removes a weak link in the chain drive.

When and why to replace:
  The timing chain is noisy (chain slap) or exhibits excess play.
  Timing cover removed for service, tensioner replaced or guide rails changed.
  Spacer appears damaged, bent, missing or shows visible wear marks.
  You are performing a full timing system overhaul on your Porsche 911/930 and want all components at new-spec for reliability.

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93010551300
93010551300

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DISPLAYING 609 to 624 (of 20211 products)