Porsche

Tiptronic Control Unit.
Restore proper centre differential/transfer-case lock control in your Porsche Cayenne 955 chassis, 2003-2004. This ECU module governs the longitudinal lock mechanism of the drive system, ensuring correct power distribution front to rear, correct 4WD behaviour and stable traction. Ideal for replacing a failed or malfunctioning unit, it enables your 4WD system to perform reliably.

Fits:

• Porsche 955 Cayenne 3.2L V6 2003-04
• Porsche 955 Cayenne S 4.5L V8 2003-04
• Porsche 955 Cayenne Turbo 4.5L 2003-04

Cars With Option Codes:
G0R - Tiptronic S

Diagram Ref No 8

What This Product Does:

• In 4WD/all-wheel-drive systems the “drive longitudinal lock” refers to locking mechanisms of the centre differential or transfer case — this ensures power is correctly distributed between front and rear axles.
• This ECU monitors and controls that locking system: it takes inputs (wheel speeds, differential states, driver commands) and commands the actuator (solenoids, clutches) in the transfer case or centre diff to engage or release the lock.
• Proper function ensures that the vehicle’s 4WD system behaves correctly (engaging or disengaging locks when required), which impacts traction, stability, driveability and sometimes road regulations (e.g., snow/ice mode).
• If this unit fails, the locking system can get stuck open or closed, produce fault codes, and affect driving behaviour (especially in low-traction or off-road situations).

Symptoms Of Failure Or Need For Replacement:

• A fault code related to the centre differential, transfer case, or “longitudinal lock” is present in the diagnostics.
• Loss of 4WD function or “lock” function — e.g., the vehicle stays in 2WD when it should lock, or it stays locked when it shouldn’t.
• Illumination of warning lamps related to drivetrain/4WD/traction.
• Unusual noises from the transfer case / centre diff (clutch slipping, grinding) that might be triggered by improper lock control.
• Intermittent behaviour (sometimes works, sometimes doesn’t) which can indicate ECU logic/actuator control failure rather than a purely mechanical fault.

Why Replacement Matters:

• Because the control unit is central to drivetrain behaviour, a fault here can drastically degrade vehicle performance, safety (traction/stability) and drivability.
• For a Porsche Cayenne early model (955), these units are becoming harder to source or may be superseded — replacing a failing unit proactively protects the vehicle.
• Restoring the correct function of the 4WD/centre differential lock restores the vehicle’s intended performance envelope, especially under load, off-road or in low-traction conditions.
• From a maintenance/resale perspective: a vehicle with a properly functioning transfer-case lock system is more desirable; faults here reduce value.
• Lastly, diagnosing and replacing the ECU early may prevent secondary damage (mechanical wear from improperly controlled locks/clutches).

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95561802305

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Universal Steering Joint, LHD.
Restore steering precision and connection on your Porsche 911 (964 / 993 generation) with this genuine OEM universal steering joint. Designed for LHD 964 / 993 models (circa 1990-94, with airbag steering wheels), this coupling (part number 964 347 206 52) replaces the steering shaft u-joint to eliminate play and restore crisp wheel-to-road feel. Whether you’re refurbishing your classic 964 / 993 or maintaining its steering system, this joint is a critical component for safety, performance and value.
For Left Hand Drive Cars ONLY!

Fits:

• Porsche 964 (911) C2 1990-93
• Porsche 964 (911) C4 1990-93
• Porsche 964 (911) RS 3.6L 1991-93
• Porsche 964 (911) RS 3.8L 1991-93
• Porsche 964 (911) TURBO 3.3L 1991-93
• Porsche 964 (911) TURBO 3.6L 1991-93
• Porsche 993 (911) C2 1994-97
• Porsche 993 (911) C4 1994-97
• Porsche 993 (911) RS 1994-97
• Porsche 993 (911) C2S 1994-97
• Porsche 993 (911) C4S 1994-97
• Porsche 993 (911) TURBO 1994-96
• Porsche 993 (911) GT2 1994-97
• Porsche 993 (911) TURBO S 1994-97

Diagram Ref No 3

What This Product Does:

• The universal steering joint (u-joint) allows the steering shaft to transmit rotational torque from the steering wheel through one or more bends or offsets in the shaft assembly. This is necessary because the steering column is not always in a straight line to the rack/box — the joint compensates for misalignment, angles, and movement.
• It also absorbs slight movement or misalignment in the column/shaft as the car body or chassis shifts under load, ensuring consistent steering input.
• A properly functioning joint ensures steering inputs are crisp and without slop, meaning the driver feels direct connection between the wheel and the road.
  
  

Symptoms Of Wear Or When To Replace:

• Steering play or looseness — the steering wheel feels vague or there is free movement before the wheels respond.
  
• Clicking, clunking, or knocking noises in the steering column area when turning the wheel, especially when stationary or slow speed.
  
• Vibration or harshness being felt through the steering wheel that wasn’t there before — could indicate joint wear.
  
• Difficulty maintaining alignment of the steering shaft or column, or if the joint appears visually worn or has excessive movement when the wheel is moved by hand.
  
• On inspection: the joint may show worn bearing surfaces, excessive play, corrosion or missing grease, or the coupling bolts may be loose or damaged.

Why Replacement Matters:

• A worn or failing steering joint compromises the connection between driver and car — which is a crucial safety and performance component.
  
• Replacing the joint restores steering precision, improves feedback and driver confidence.
• It prevents further damage: a sloppy joint can transfer misalignment or stress to other steering components (column, rack, couplings).
• If you’re restoring or upgrading a 964 / 993, fitting a new universal joint ensures the steering system is fresh and retains value.
• From a safety standpoint, the steering column is a critical interface — ensuring all joints are correct supports overall integrity.

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Tiptronic Switch, Without Cover.
Upgrade or restore your Porsche steering wheel’s manual-shift capability with this genuine Tiptronic shift-switch assembly. Designed for Porsche 911 (996 series) and Boxster models equipped with the Tiptronic or steering-wheel shift option (option code M432), this unit installs into the steering wheel (without the wheel cover) and enables manual gear-up/gear-down requests via the steering wheel.

Fits:

• Porsche Boxster 986 2.5L 1997-99
• Porsche Boxster 986 2.7L 1999-02
• Porsche Boxster S 986 3.2L 1999-02
• Porsche Boxster 986 2.7L 2003-04
• Porsche Boxster S 986 3.2L 2003-04
• Porsche 996 C2 3.4L 1997-08/01
• Porsche 996 C4 3.4L 1997-08/01
• Porsche 996 C2 3.6L 09/01-2005
• Porsche 996 C4 3.6L 09/01-2005
• Porsche 996 C4S 3.6L 09/01-2005
• Porsche 996 TURBO 2000-05

Cars With Option Codes:
432 - Steering Wheel With Tiptronic Control
436 - 3-Spoke Airbag Steering Wheel
249 - Tiptronic Transmission

Diagram Ref No 5

What This Product Does:

• The switch assembly allows the driver to manually request a gear up or gear down change via the steering wheel (or a stalk) in a car equipped with the Tiptronic or manual-mode automatic transmission.
• When pressed, the switch sends a signal to the transmission control unit (TCU) or shift logic unit, telling the system that the driver wants a gear shift (up or down). The system then executes the shift accordingly (assuming conditions are safe).
• It enables a more engaging driving experience: rather than fully automatic shifts, the driver can intervene via the steering wheel — especially useful for sporty driving or when you want more control.
• Since this switch is mounted in the steering column or wheel housing, it must integrate electrically and mechanically with the steering wheel, clock spring (slip ring), airbag wiring (if present), and shift logic.

Symptoms Of Wear Or Failure:

• Gear shift requests not registering: you press the paddle or switch and the transmission does nothing or delays shifting — the switch may not be signalling properly.
  
• Unexpected behavior: the shift logic may behave erratically (e.g., unintended shifts, no response) because the input is corrupted or erratic.
  
• Warning lights or error codes: your TCU or instrument cluster may log faults relating to gear shift input, steering wheel controls, or slip-ring/clock-spring issues.
  
• Physical damage or wear: the switch may feel loose in the wheel, or the button might require unusual force; wiring or connectors may be degraded; slip-ring may be worn causing intermittent signal loss.
  
  

Why Replacement Matters:

• Having a fully functioning shift-switch on a Tiptronic or manual-mode automatic is key for driver control and engagement. If the switch fails, you lose an important ergonomic interface.
  
• From a safety standpoint: faults in steering-wheel mounted switch modules can impact other systems (airbag wiring, steering-column controls) or cause unexpected behaviors — replacing a faulty assembly restores correct integration.
• For vehicles being restored, modified or where the steering wheel has been replaced/modified, ensuring the correct switch unit is fitted (and the “without cover” variant matches your wheel) is important for fitment, function and resale value.
• Proper repair avoids repeated diagnostic and repair costs. A degraded switch can lead to transmission control faults, which may require expensive fault-finding.
• Ensures longevity: wiring, mechanical integrity, and switch responsiveness degrade over time; replacing it pre-emptively improves reliability.

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Float valve with ball 1.75mm for Solex 40 PII-4 Carburetor. 
This precision float valve is an original Porsche part used in Solex 40 PII-4 carburettors on classic Porsche 356 B/C and 912 models. It consists of a finely machined needle, seat and spring calibrated for the correct 1.75 mm flow, ensuring that the fuel level inside the float chamber remains stable and accurate. A correct float valve is vital to maintain proper mixture, smooth idle and balanced performance.

Fits:
Porsche  356B / 356C  (Model: 1600 S90/SC, CARRERA, 587/1 692/3A)  1960-1965
Porsche 912 1.6L 1965 - 1969  (Engine code:  616/36/37)
Porsche 912 1.6L 1965 - 1969  (Engine code:  616/39/40)

Diagram ref no 46

Manufactured by Porsche to high OEM standards, this part ensures exact fitment, sealing and metering geometry — preserving the original fuel delivery behaviour of the engine.

• Function: Regulates fuel entry in float chamber of carburettor
• Fitment: Porsche 356 B/C; Porsche 912 (with Solex 40 PII-4)
• Position: Inside float chamber of carburettor body
• Benefits: Factory-exact metering geometry, correct fit/seal Installation
• Replace: during carburettor rebuild, verify seat & float level

Why and when to replace:
Over time the factory float valve may suffer from fuel contamination, corrosion or wear on the needle tip or seat. These issues can cause flooding, imbalanced mixture, rough idle or poor throttle response. Replace the valve when the original shows wear, leakage, improper float height or you’re performing a full carburettor overhaul. Using the genuine Porsche part restores the correct fuel-level control and ensures the engine runs true to the original specification.

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Mixing tube for Solex carburetor.
This factory-supplied mixing tube slots inside the Solex 40 PII/44 PII carburettors fitted to Porsche 356 and 912. The tube (“Nr. 25” in Porsche diagrams) maintains the calibrated internal bore and jet path which controls metered fuel/air flow into the carburettor throat.
Sold each, 2 required per vehicle.

Fits:
Porsche 356 / 356A 1959 - 1959 with Engine code: 6922
Porsche  356B / 356C  (Model: 1600 S90/SC, CARRERA, 587/1 692/3A)  1960-1965
Porsche 912 1.6L 1965 - 1969  (Engine code:  616/36/37)
Porsche 912 1.6L 1965 - 1969  (Engine code: 616/39/40)

Diagram ref no 37

Manufactured to exact Porsche specifications with precision bore, correct fit and finish, this OEM part ensures correct mixture delivery, consistent idle behaviour and restores original equipment performance in your classic Porsche fuel system.

•  Part Number: 61610090703 (replaces 61610090702)
•  Function: Controls metered fuel/air flow inside carburettor body
•  Position: Inside carburettor body, part “tube Nr. 25”

Over time, the factory mixing tube may suffer wear, corrosion or internal bore distortion. Even slight degradations can upset fuel/air mixture, causing rough idle, hesitation or poor drivability.

Replace this part when:
•  You are performing a full carburettor rebuild or fuel-system service
•  The original is worn, corroded or missing
•  The engine shows symptoms of mixture imbalance or idle instability
•  You aim to restore the vehicle to factory specification and optimal performance

Installing the genuine Porsche restores original induction geometry, precise mixture control and ensures your classic Porsche runs the way Porsche intended.

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Throttle Shaft for SOLEX 40 PII-4 Carburettor
This throttle shaft is the factory-supplied pivot for the throttle plate lever in the SOLEX 40 PII-4 carburettor system, used on vintage Porsche models such as the 356 and 912.

Fits:
Porsche 356 B/C - 1600 S90/SC, CARRERA, 5871  - 1960 - 1965
Porsche 912 1.6L 1965 - 1968  (Engine code:  616/36/37)

Diagram ref no 2

Manufactured by Porsche to original specifications, this shaft offers exact dimensions, hardened steel alloy construction, and precision machining to ensure smooth throttle linkage movement, accurate carburettor control, and long-term reliability.

When you restore an intake or carburettor system, using the Genuine Porsche 61610091202 shaft ensures that your linkage geometry, tolerances, and throttle feel match the original factory setup — preserving performance, authenticity, and resale value.

Over many years of use, throttle shafts can suffer from wear in the bore, light corrosion or loss of firm fit, which may cause throttle linkage play, erratic idle, or poor throttle response.

Replace this shaft when:
• Rebuilding or servicing the carburettor system
• The original shows visible wear, misalignment or movement
• Restoring a vehicle to exact factory specification for originality

Installing the Genuine Porsche 61610091202 shaft ensures your carburettor linkage remains precise, the throttle feel remains crisp and your classic Porsche performs as originally engineered.

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Eccentric bolt,  M 12 X 1,5 X 117, for Front lower wishbone.
The Genuine Porsche 97034121720 Adjustment Bolt is the factory eccentric camber/toe adjustment bolt used on the front suspension of Porsche Panamera (970.2, 2014 - 2016) models. This bolt provides precise adjustment of suspension geometry by allowing fine-tuned positioning of the lower control arm mounting point on the subframe.
Sold each, 2 required per vehicle.

Fits:
Porsche 970.2 Panamera 2014 - 2016

Diagram ref no 5

This original fastener is essential whenever replacing or servicing front control arms, subframe components, or performing a full alignment on Panamera models — ensuring authentic factory precision and long-term reliability.

• Function: Adjusts camber and toe angle of front lower control arms
• Position: Front axle – lower control arm mounting point
• Benefits: OEM precision, stable alignment, rust protection, accurate suspension setup
• Installation: Use during alignment or control arm replacement; torque to Porsche specification

Adjustment bolts are exposed to road grime, corrosion, and repeated torque loads during alignments and suspension service. Over time, threads may seize, stretch, or lose accuracy, preventing proper alignment or secure mounting.

Replace this bolt when:
• Performing front lower control arm or subframe service
• Carrying out camber or toe adjustment and finding worn threads or seized bolts
• Visible rust or deformation affects torque or alignment accuracy

Installing a Genuine Porsche 97034121720 Adjustment Bolt guarantees precise geometry correction and ensures your Panamera’s suspension remains perfectly aligned — delivering the confidence, balance, and road feel expected from Porsche engineering.

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Front lower control arm bolt, (M12 x 1.5 x 95).
Engineered from high-tensile alloy steel, this OEM bolt provides exceptional strength, fatigue resistance, and torque retention. Its 12-point head design allows uniform torque application and a secure, vibration-resistant connection, Its used to secure the front lower control arm to the chassis or subframe on Porsche 970 Panamera models.
Sold each. 2 required per vehicle.

Fits:
Porsche 970.1 Panamera 2010 - 2013
Porsche 970.2 Panamera 2014 - 2016

Diagram ref no 8

Each Genuine Porsche bolt is manufactured to exact OE standards for thread pitch, shank length, and tensile grade, ensuring reliable installation and long-term structural integrity. It is recommended for use in suspension rebuilds, control arm replacement, or geometry corrections where factory accuracy is essential.

•  Function: Secures front lower control arm to chassis/subframe
•  Position: Front axle – lower arm mounting point
•  Thread Size:  M12 × 1.5
•  Length: 95 mm
•  Benefits: Factory-spec geometry, torque accuracy, vibration resistance
•  Installation: Torque to Porsche specifications; replace after removal (single-use fastener)

Porsche specifies replacing these bolts during any suspension disassembly or control arm service, as they are torque-to-yield fasteners designed for single use. Reusing old bolts can compromise torque retention and suspension alignment.

Replace this bolt when:
•  Performing control arm or subframe installation
•  The original bolt shows corrosion, stretching, or thread wear
•  Conducting geometry correction or alignment work
•  Completing a front-end rebuild

Using a Genuine Porsche 99907415001 bolt guarantees the same strength, precision, and safety the vehicle had when it left the factory — ensuring every fastening point performs as intended under dynamic load.

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Upper control arm nut. 
Hexagon collar nut self-locking type (M 10) is a factory spec, used in various Porsche suspension and control arm mounting points. This nut features an integrated collar or flange to help distribute load and maintain torque retention in dynamic suspension joints.
Sold each, 4 required per vehicle

Fits:
Porsche 970.1 Panamera 2010 - 2013
Porsche 970.2 Panamera 2014 - 2016
Porsche 971.1 Panamera 2017 - 2021
Porsche 971.2 Panamera 2021 - 2024
Porsche 955 Cayenne 2003 - 2006
Porsche 957 Cayenne 2007 - 2010
Porsche 958 Cayenne 2011 - 2018
Porsche 9YA Cayenne 2018>> (1BA - with standard suspension)
Porsche 9J1 Taycan 2020>>

Diagram ref no 15

• Function: Secures suspension and chassis components under load
• Position: Used across control arms, subframes, and steering joints
• Symptoms of wear: Loose suspension joints, vibration, uneven torque
• Benefits: Factory-spec strength, self-locking reliability, vibration resistance
• Installation: Replace after removal; torque to Porsche specification

Whether used on control arms, subframes, or steering links, this original fastener restores the vehicle’s factory integrity — ensuring the performance and handling precision Porsche is known for.

Self-locking nuts are designed for single-use applications — once removed, their locking feature weakens, risking torque loss or loosening under vibration. Over time, exposure to heat, road debris, or corrosion can also degrade the nut’s surface coating and internal locking mechanism.

Replace this nut when:
•  Performing control arm or suspension link service
•  Reinstalling subframe, engine mount, or steering components
•  The nut shows signs of corrosion, deformation, or thread wear
•   A torque-to-yield fastener procedure is required (one-time use)

Using a fresh Genuine Porsche PAF102861 nut ensures safe, consistent torque and preserves the alignment and handling precision of your Porsche.

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Upper control arm mount bolt.
Hex collared bolt (M10 X 70) is the factory-engineered fastener used to secure the upper front control arm to the subframe. Built to precise Porsche specifications, it ensures structural integrity, alignment accuracy, and long-term suspension reliability. Its OEM-grade finish and geometry guarantee perfect fitment with original Porsche control arms and bushings.
Sold each, 4 required per vehicle

Fits:
Porsche 970.1 Panamera 2010 - 2013
Porsche 970.2 Panamera 2014 - 2016

Diagram ref no 14

• Function: Secures upper control arm to chassis; maintains suspension geometry
• Position: Front axle – upper control arm mounting point
• Symptoms of wear: Corrosion, thread damage, torque loss after repeated use
• Benefits: Factory fit, correct preload, safe alignment accuracy
• Installation: Replace when servicing control arms or during alignment; torque to Porsche specs

Whether performing front suspension repairs, alignment work, or full arm replacements, using Genuine Porsche hardware like the PAF102902 bolt ensures your car maintains its original handling precision and

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Steering Rack Boot Clamp (crimp-type or “ear clamp”)
The Genuine Porsche N10551701 Boot Clamp is the factory clamp used to secure the steering rack bellows / rack boot to the rack housing or tie rod housing. This clamp ensures the boot is sealed tightly, keeping dirt, water, and debris out of the rack assembly and protecting internal steering components.
Sold each, 2 required per vehicle.

Fits:
Porsche Cayenne 955 2003 - 2006
Porsche Cayenne 957 2007 - 2010
Porsche Cayenne 958 2011 - 2017

Diagram ref no 3

•  Position: Around the boot (bellows) of the steering rack / inner tie rod connection
•  Function: Secures the rubber boot to the housing, maintaining a protective seal to prevent ingress of contaminants

The original clamp can lose tension, corrode, or break over time, leading to:
• Loose or leaking rack boots
• Entry of dirt, water, and debris into the rack
• Premature wear or damage to inner steering rack components

Replace the clamp when installing a new rack boot, after steering rack maintenance, or anytime a clamp looks old, stretched, or corroded. A new Genuine Porsche N10551701 clamp restores a secure, factory-level seal for reliable steering protection.

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Steering rack boot O-ring.
The Genuine Porsche N90180902 O-Ring is the factory-specified sealing ring used on the steering rack boot (bellows) in Porsche Cayenne models. This factory seal ensures a tight, durable fit between the rack and boot — preserving smooth, leak-free steering operation.
Sold each, 2 required per vehicle.

Fits:
Porsche Cayenne 955 2003 - 2006
Porsche Cayenne 957 2007 - 2010
Porsche Cayenne 958 2011 - 2017

Diagram ref no 4

•  Position: Between steering rack housing and boot (bellows)
•  Function: Seals the interface to prevent fluid leaks and protect internal rack components

The O-ring can harden, flatten, or crack over time due to heat, fluid exposure, or age.

Replacement is recommended when:
•  Replacing or refitting steering rack boots
•  Servicing the steering rack or tie rod assemblies
•  Evidence of moisture, fluid seepage, or debris inside the bellows

Replacing with a Genuine Porsche N90180902 O-Ring ensures proper sealing, preventing premature wear or corrosion of internal steering components.

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Front bumper bracket - inner.
The Genuine Porsche 64450513305 Front Bumper Inner Bracket is the factory-specified steel support used to secure and position the front bumper on Porsche 356 models. Designed to fit either the left or right side, this bracket provides the critical inner mounting point that anchors the bumper to the chassis horns.
Sold each, Fits left and right side.

Fits:
Porsche 356B 1960 - 1963
Porsche 356C 1964 - 1965

Diagram ref no 3

•  Position: Inner mounting bracket, fits left or right side
•  Function: Connects the bumper to the chassis horn, aligning the inner section and distributing load

After decades of exposure, inner bumper brackets can rust, deform, or crack due to moisture and stress. These issues lead to poor bumper alignment, sagging, or instability. Replace during front-end repair, bumper repainting, or full restoration to restore correct bumper fit and long-term durability.

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Front bumper bracket - outer.
The Genuine Porsche 64450513105 Front bumper outer bracket is the factory-engineered steel mounting arm used to support and position the front bumper on Porsche 356 models. Designed for use on either the left or right side, this precision-formed bracket ensures accurate bumper alignment, correct panel gaps, and structural stability under load.
Sold each, Fits left and right side.

Fits:
Porsche 356B 1960 - 1963
Porsche 356C 1964 - 1965

Diagram ref no 3

•  Position: Outer mounting bracket, fits left or right side
•  Function: Connects front bumper shell to the chassis horns; supports and aligns bumper position

Over decades, the original bumper brackets may become bent, corroded, or weakened by vibration or impact, leading to poor alignment or sagging corners. Replacement is recommended when restoring the bodywork, repainting the bumper, or repairing front-end damage. Using a Genuine Porsche bracket ensures factory-correct alignment, strength, and lasting fit.

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Electric Drive Motor For Glass Sunroof, COUPE.

Restore effortless sunroof operation with this Genuine Porsche Electric Drive Motor, designed specifically for glass sunroof-equipped Porsche 911 996 and 997 models.
This electric drive motor powers the opening, closing, and tilting of the sunroof panel, using a precision gear mechanism and integrated control drive. Over time, the original motor can weaken or fail, leading to slow movement, incomplete closure, or stuck roof operation.
For COUPE Models ONLY!

Fits:

• Porsche 996 C2 3.4L 1997-08/01
  
• Porsche 996 C4 3.4L 1997-08/01
  
• Porsche 996 C2 3.6L 09/01-2005
  
• Porsche 996 C4 3.6L 09/01-2005 
• Porsche 996 C4S 3.6L 09/01-2005 
• Porsche 996 TURBO 2000-05
  
• Porsche 996 GT2 2001-05
  
• Porsche 997 MK1 Carrera 2 3.6L 2005-08
  
• Porsche 997 MK1 Carrera 2S 3.8L 2005-08
  
• Porsche 997 MK1 Carrera 4 3.6L 2005-08 
• Porsche 997 MK1 Carrera 4S 3.8L 2005-08
  
• Porsche 997 MK1 TURBO 2007-09
  
• Porsche 997 MK1 GT3 2007-09
  
• Porsche 997 MK1 GT2 2007-09
  
• Porsche 997 MKII Carrera C2 3.6L 2009-12
  
• Porsche 997 MKII Carrera C4 3.6L 2009-12
  
• Porsche 997 MKII Carrera C2S 3.8L 2009-12
  
• Porsche 997 MKII Carrera C4S 3.8L 2009-12 
• Porsche 997 MKII GT3 2010-11
  
• Porsche 997 MKII Turbo 2010-13
  
• Porsche 997 MKII GT2 RS 2011-13
  

For Cars With Option Code:
650 - Electrical Sliding Roof

Diagram Ref No 2

What This Product Does:

• This electric motor is the drive mechanism that powers the opening, closing, and tilting motions of the glass sunroof (i.e. it’s the actuator for the sunroof).
  
• It transfers rotational force via gears or cable drives to move the sunroof panel along its tracks.
• Works in concert with control switches, limit switches, wiring, and the track assembly to move the roof smoothly and stop at the end positions (fully open, fully closed, vent tilt).
• Helps hold the sunroof shut through its gearing and locking mechanism when power is removed (i.e. it resists wind lift or leakage).

Symptoms / Signs Of Fault Or Failure:

• The sunroof fails to open, close, or tilt
• The sunroof moves very slowly or stutters
• Intermittent operation (works only sometimes)
• Grinding, clicking, or whining noises when attempting to move the sunroof
• The sunroof might stop mid-travel or get “stuck” in open or partly open position
• Electrical issues or blown fuses in the sunroof circuit
• Sunroof drains or seals may leak if the panel doesn’t close tightly (because the motor can’t fully drive the roof closed)

Why Replacement Matters:

• Restores functionality of the sunroof, which is a premium feature in many Porsche models
  
• Eliminates annoyance, weather ingress, and potential interior damage from a sunroof stuck open or leaking
• Prevents damage to other parts of the sunroof system (tracks, cables, linkage) that might be stressed by a weak motor
• Stops noise, vibration, and inconsistent behavior associated with a failing drive motor

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Camshaft timing gear / Drive sprocket.
The Genuine Porsche 90110554604 Camshaft Timing Gear is the factory drive sprocket that transfers motion from the timing chain to the camshaft on classic air-cooled engines. Precision-cut teeth and OEM-spec indexing ensure accurate valve timing, quiet chain operation, and long service life.
Fits: Left or Right, Sold each.

Fits:
Porsche 911 1965 - 1989
Porsche 964 1989 - 1994
Porsche 993 1994 - 1998

Diagram ref no 22.

Where it fits / what it does
• Location: Camshaft nose, inside the timing chain housing
• Function: Meshes with the timing chain to drive the camshaft at precise phase relative to the crankshaft

Why & when to replace:
• Tooth wear or pitting, chain elongation damage, or abnormal noise
• During timing chain, tensioner, or full top-end rebuilds
• To restore correct cam timing after diagnosing erratic valve events or metal debris in the housing

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

90110554604

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