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- Porsche 911 1978-1983 3.0L / SC
- Porsche 911 1984-1986 3.2L
- Porsche 911 1987-1989 3.2L G50
OE Match air pump belt for Porsche 911 applications from 1978–1989. This narrow V-belt has the supplied dimensions of 9.5 x 975 and is intended for the air injection pump drive.
Fits:
Porsche 911 3.2L 1978 - 1989
Diagram ref no 35
Diagram: 108-00, item 34 — 911 SC 1978–83
Diagram: 108-00, item 35 — 911 Carrera 930.26 1987-89
Diagram: 108-00, item 35 — 930.26 (AUS) (CH) (S) 1984–86
What This Product Does
The belt provides the mechanical drive to the air injection pump. It is an auxiliary drive component, rather than a belt used to control valve timing. Correct specification and adjustment are important when renewing it.
Functions
- Transfers drive through the air pump pulley system.
- Provides a replacement for an aged, damaged or slipping air pump belt.
Technical Details
- Belt construction: narrow V-belt.
- Supplied dimensions: 9.5 x 975.
Symptoms of Fault
- Squealing during starting or changes in engine speed.
- Cracks, splitting, frayed edges or a shiny belt surface.
- Belt dust near the pulleys or visible signs of slipping.
- Fluid contamination affecting the belt surface.
Why Replacement Matters
Age, heat and contamination can deteriorate a drive belt even when the car covers few miles. Renewing a worn belt addresses deterioration in the pump drive, but associated pulley condition, alignment and adjustment should also be checked. A replacement belt alone will not correct a damaged pulley or a binding pump.
FAQs
What should be checked before fitting?
Match the vehicle details and belt dimensions, then inspect the pulleys for damage, contamination and alignment.
Why might a replacement belt still squeal?
Incorrect adjustment, pulley misalignment or contamination may remain. Identify the cause rather than simply increasing belt tension.
Can excessive tension cause problems?
Yes. Use the adjustment procedure specified for the vehicle; overtightening can place unnecessary load on the driven components.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
90019200550
The product you are viewing cross references to these numbers
- Porsche Boxster 987 MKII 2.9L 2009-12
- Porsche Boxster S 987 MKII 3.4L 2009-12
- 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 Turbo 2010-13
- Porsche Cayman 2.9L 987C MKII 2009-12
- Porsche Cayman S / R 3.4L 987C MKII 2009-12
Fits:
Porsche 997.2 2009-12
Porsche 997.2 TURBO 3.8L MA1.70 engine
Porsche 987.2 Boxster 2009-12
Porsche 987C.2 Cayman 2009-12
Click 'Zoom in' for large parts diagram.
Diagram ref no 7
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
9A110221601
The product you are viewing cross references to these numbers
- Porsche 996 TURBO 2000-05
- Porsche 996 GT2 2001-05
- Porsche 997 MK1 TURBO 2007-09
- Porsche 997 MKII GT2 RS 2011-13
This OE Match drive belt is a replacement auxiliary engine belt for Porsche 996 Turbo and 997 Turbo models equipped with air conditioning. It is designed to match the original-style fitment and function. This replacement auxiliary belt helps drive engine accessories and supports reliable operation of the vehicle’s charging and auxiliary systems.
Fits:
Porsche 996 Turbo 2000-2005 M96.70 Engine
Porsche 996 GT2 M96.70 Engine
Porsche 997 Turbo 2007-2009 3.6L M97.70 Engine
Porsche 997 GT2 RS 2011 M97.70 Engine
Diagram ref no 9
The drive belt transfers rotational power from the engine pulley to the relevant auxiliary components. On vehicles with air conditioning, the correct belt specification is essential for proper pulley contact, belt tension, and reliable accessory drive operation.
Functions
• Replaces the auxiliary drive belt
• Suitable for cars with air conditioning
• Transfers drive from the engine pulley to auxiliary components
• Helps maintain correct belt tension and pulley contact
• Supports reliable charging and accessory system operation
• Replaces cracked, glazed, stretched, frayed, noisy, or slipping belts
• OE Match replacement for Porsche 996 Turbo and 997 Turbo engine service.
Why Replace This Part?
Drive belts wear over time due to heat, vibration, pulley contact, age, tension changes, and engine bay conditions. A worn belt can crack, glaze, stretch, fray, squeal, slip, or fail completely. If the belt fails, driven auxiliary systems may stop operating correctly, which can lead to warning lights, charging faults, accessory issues, or vehicle breakdown. Replacing the belt helps restore dependable auxiliary drive performance.
When to Replace This Part
• The drive belt is cracked, glazed, frayed, stretched, or worn
• Belt squeal, chirping, or slipping is present
• The belt does not track correctly on the pulleys
• The alternator, pulleys, tensioner, or related components are being serviced
• Charging or accessory drive faults are present
• Preventative belt replacement is being carried out during scheduled maintenance
• The vehicle is undergoing Porsche 996 Turbo or 997 Turbo engine service.
Where it fits on the car
This drive belt fits within the engine auxiliary belt drive system on Porsche 996 Turbo and 997 Turbo models with air conditioning. It runs around the relevant pulleys according to the factory belt routing.
Related reference numbers
Related, superseded, cross reference or alternative numbers for comparison.
99919237951
The product you are viewing cross references to these numbers