Please wait… 
Please wait while we process your order,
do not press the back button… 
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

Hoses / Pipes / Sleeves

Refine by Car Type
Filter by brand
DISPLAYING 33 to 47 (of 47 products)
1 2 3
Special Order item
91111029502
Product Information
Product Information
Pre-heat hose, Heat exchanger to engine tin. 24mm x 400mm.

porsche

Fits:
Porsche 911 1972-73

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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Related, superseded, cross reference or alternative numbers for comparison.

91111029502
91111029502
1623500700

The product you are viewing cross references to these numbers
91111029502/1
Product Information
Product Information
Preheater hose from heat exchanger to engine tin, 24x400 mm

dansk

Fits:
Porsche 911 1972-73

Click 'Zoom in' for large parts diagram.
Diagram ref no 16

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Related, superseded, cross reference or alternative numbers for comparison.

91111029502
91111029502
1623500700

The product you are viewing cross references to these numbers
Special Order item
90111029500
Product Information
Product Information
Pre-heat pipe, Inner, 25 X 560 mm for cars with mechanical injection.

porsche

Fits:
Porsche 911 69-77 MFI

Click 'Zoom in' for large parts diagram.
Diagram ref no 28

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Related, superseded, cross reference or alternative numbers for comparison.

90111029500
90111029500

The product you are viewing cross references to these numbers
Special Order item
PCG11029600
Product Information
Product Information
Pre-heat pipe, Outer, for cars with mechanical fuel injection.

porsche

Fits:
Porsche 911 69-77 MFI

Click 'Zoom in' for large parts diagram.
Diagram ref no 29

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Related, superseded, cross reference or alternative numbers for comparison.

PCG11029600
PCG11029600

The product you are viewing cross references to these numbers
90111029500/1
Product Information
Product Information
Pre-heat pipe, Inner, 25 X 580 mm for cars with mechanical injection.

oematch

Fits:
Porsche 911 69-77 MFI

Click 'Zoom in' for large parts diagram.
Diagram ref no 28

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Related, superseded, cross reference or alternative numbers for comparison.

90111029500
90111029500
911223-091
911223-091

The product you are viewing cross references to these numbers
Special Order item
92811015801
Product Information
Product Information
Rubber Sleeve For Air Intake.
The Porsche Rubber Sleeve for Air Intake is a genuine OEM replacement part designed to provide a secure, airtight connection within the air intake system. Used on classic Porsche 928 (1978–1984) and select 911 SC (1978–1979) models, this rubber sleeve links rigid intake components while absorbing vibration and movement.

Fits:
  • Porsche 911 1978-1983 3.0L / SC
  • Porsche 928 4.5L 1978-82
  • Porsche 928S 4.7L 1981-83 (USA, Canada, Japan Models Only)

What This Product Does:
The rubber sleeve acts as a seal and flexible hose between rigid parts of the intake system (for example between the airbox, intake manifold, or distributor, depending on configuration). It ensures air travels properly without leaks.

Symptoms Of A Worn Out Sleeve:

  • Rough idle or uneven running — because air is leaking in (unmetered air), messing up the mixture.
  • Hissing or whistling sounds from under the hood, particularly around where the sleeve is located.
  • Hard starting or hesitation when accelerating, especially if the leak affects air flow under load.
  • Reduced performance or lack of throttle response.
  • Possibly engine warning lights / codes related to airflow, air/fuel mixture, or vacuum leaks.

Why Replacement Matters:
  • Prevents air leaks which can lead to rich or lean mixtures, poor throttle response, lower fuel efficiency, and possible engine damage over time.
  • Helps maintain smooth running and reliability of older Porsche engines, where leaks or perished rubber hoses are common weak points.
  • Preserves engine health by ensuring the correct air/fuel ratio. Unmetered air can contribute to detonation or stress on components.
  • Maintains OEM specification — using a correctly sized, good-quality rubber sleeve helps ensure fit, sealing, and durability.

Diagram Ref No 10



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

92811015801
92811015801
92811015800

The product you are viewing cross references to these numbers
91111088502/1
Product Information
Product Information
Rubber sleeve inlet manifold. 
6 required per car

oematch

Fits:
Porsche 911 / 911S - 1974 to 1977

For cars with K-Jetronic fuel injection

Click 'Zoom in' for large parts diagram.
Diagram ref no 8



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

91111088502
91111088502
911 110 885 02

The product you are viewing cross references to these numbers
Special Order item
91111088502
Product Information
Product Information
Rubber sleeve inlet manifold. 
6 required per car

porsche

Fits:
Porsche 911 / 911S - 1974 to 1977

For cars with K-Jetronic fuel injection

Click 'Zoom in' for large parts diagram.
Diagram ref no 8



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

91111088502
91111088502

The product you are viewing cross references to these numbers
Special Order item
93020724301
Product Information
Product Information
Rubber sleeve restrictor valve. 

Fits:
Porsche 911 3.2 Carrera - 1984 to 1989

Diagram ref no 34



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

93020724301
93020724301

The product you are viewing cross references to these numbers
CLAMP-KIT145
Product Information
Product Information
Stainless steel clamp kit for Turbo inlet hose kit

doeighteight

To Fit:
For Turbo inlet hose kit #DO88-KIT145S
Porsche 911 (930 Turbo) 1978-1989 with 3.3 Litre Turbo engine

Kit of 6 clamps

The kit contains all necessary hose clamps to install the specified hose kit. The included clamps are a high quality standard design type in all stainless steel (W4 class) with a stamped band to minimize impact on hose surface.

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

CLAMP-KIT145
93011013702
93011015801
93011015801

The product you are viewing cross references to these numbers
DO88-KIT144S
Product Information
Product Information
Silicone turbo vacuum hose kit.
Made from high quality silicone rubber with 3 layer polyester reinforcement.

doeighteight

To Fit:
Porsche 911 (930 Turbo) 1978-1989 with 3.3 Litre Turbo engine


Hoses included:
• Wastegate hose, OEM ref 99923903440
• Warm-up valve / Air filter box, OEM ref 99923900640 / 99923903440
• Warm-up valve / T-connection on throttle body, OEM ref 99923901340
• T-connection on throttle body / Vacuum limiter, OEM ref 99923901340

Please refer to the product images for confirmation of position of the hose.

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

DO88-KIT144S
99923903440
99923903440
99923900640
99923901340
99923901340

The product you are viewing cross references to these numbers
CLAMP-KIT144
Product Information
Product Information
Turbo vacuum hoses clamp kit.

doeighteight

To Fit:
For Turbo vacuum hose kit #DO88-KIT144S
Porsche 911 (930 Turbo) 1978-1989 with 3.3 Litre Turbo engine

Kit of 8 clamps

The kit contains all necessary hose clamps to install the specified hose kit. The included clamps are a high quality standard design type in all stainless steel (W4 class) with a stamped band to minimize impact on hose surface.

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

CLAMP-KIT144
99923903440
99923903440
99923900640
99923901340
99923901340

The product you are viewing cross references to these numbers
Special Order item
90510807500
Product Information
Product Information
Vacuum control hose for clutch.
From intake manifold to control valve for Sportomatic trans clutch release.

porsche

Fits:
Porsche 911 1967-1968 w/ Sportomatic transmission
Porsche 911 1969-1972 Sportomatic

Click 'Zoom in' for large parts diagram.
Diagram ref no 14

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

90510807500
90510807500
012756

The product you are viewing cross references to these numbers
90510807500/1
Product Information
Product Information
Vacuum control hose for clutch.
From intake manifold to control valve for Sportomatic trans clutch release.

Fits:
Porsche 911 1967-1968 w/ Sportomatic transmission
Porsche 911 1969-1972 Sportomatic

Diagram ref no 14

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

90510807500
90510807500

The product you are viewing cross references to these numbers
Special Order item
PAF020353
Product Information
Product Information
Vacuum hose - 3,5 x 2
Sold in 1 meter lengths. 

##porsche#

Fits:
Porsche 911 SC - 1978 to 1983
Porsche 911 turbo - 1975 to 1977
Porsche 924 - 1976 to 1985
Porsche 914 - 1970 to 1976

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

PAF020353
99918171040
N0203531
N0203535
PCG0203535
PAF020353

The product you are viewing cross references to these numbers
DISPLAYING 33 to 47 (of 47 products)
1 2 3
Also found on these pages
About Hoses / Pipes / Sleeves

Air Inlet Hoses, Pipes & Sleeves – Durable Intake Components for Porsche Performance

Air inlet hoses, pipes, and sleeves are essential components of your Porsche’s intake system, connecting the air filter housing, throttle body, turbocharger, and intercooler. They ensure a smooth and sealed flow of air into the engine, supporting efficient combustion, responsive acceleration, and consistent performance.

At Design911, we supply a full range of genuine and high-quality air inlet hoses, pipes, and sleeves for numerous Porsche models that include 911, Boxster, Cayman, Cayenne, Macan, and Panamera models. Each component is engineered for precision fitment, heat resistance, and airflow stability — helping your Porsche deliver the performance and reliability it’s known for.

What Do Air Inlet Hoses, Pipes & Sleeves Do?

These components channel filtered air through the intake system to the engine’s combustion chambers. Their main functions include:

  • Maintaining airtight airflow between intake components.
  • Reducing turbulence and air loss for improved throttle response.
  • Supporting optimal air pressure for turbocharged and naturally aspirated engines.
  • Protecting against contaminants that can reduce performance or cause engine wear.

In turbocharged Porsche models, these parts also help manage boost pressure, making them crucial to both efficiency and power delivery.

Why Do Air Inlet Hoses, Pipes & Sleeves Fail?

Due to their constant exposure to heat, vibration, and engine movement, air inlet components can deteriorate over time. Common causes of failure include:

  • Cracking or splitting from heat cycles and material fatigue.
  • Oil or fuel vapor contamination softening the rubber or plastic.
  • Loose or damaged clamps causing vacuum or boost leaks.
  • Age-related hardening leading to brittle connections.
  • Excessive boost pressure stressing the hose in performance applications.

Symptoms of failure include hissing or whistling noises, loss of boost pressure, poor throttle response, rough idling, or a check engine light caused by airflow irregularities.

Why Replace Worn Air Inlet Components?

A leaking or damaged inlet hose can cause unmetered air to enter the engine, resulting in incorrect fuel-air ratios, poor performance, or even turbocharger strain. Replacing worn or cracked hoses and pipes ensures proper airflow, efficient combustion, and reliable performance.

Benefits of replacement include:

  • Restored air pressure and engine response.
  • Improved turbo efficiency and power delivery.
  • Enhanced fuel economy and reduced emissions.
  • Long-term reliability with manufacturer-quality materials.

All hoses, pipes, and sleeves available at Design911 are crafted from high-temperature silicone, reinforced rubber, or aluminium alloys for superior sealing, flexibility, and strength — ensuring dependable performance under demanding conditions.

You may also like
Popular Models