Drive belt. Porsche 991.1 S / 991.1 Turbo / 992.1 S and GTS  ❭  0PB903137E

Drive belt 
This OE Match drive belt is a replacement auxiliary engine belt for selected Porsche 991.1 and 992.1 models. It is designed to match the original-style fitment and function. This replacement auxiliary belt helps drive engine accessories and supports reliable engine system operation.

Fits:
Cars with PASM and Sport chassis PDCC (option code: 031 / I352)
Porsche 991.1 S 3.8L 2012 - 2016 (MA1.03 engine)
Porsche 991.1 Turbo 3.8L (MA1.71 engine)

Porsche 992 S / GTS  15.03.2020 - 2024
For cars with PDDC Option Code 1P7 (Anti roll bar, active body control PDDC)

Diagram ref no 1

The drive belt transfers rotational power from the engine pulley to the relevant auxiliary components. A correctly fitted and tensioned belt is essential for dependable accessory drive performance, proper pulley contact, and overall engine reliability.

Functions
•  Replaces the auxiliary engine drive belt
•  Transfers drive from the engine pulley to auxiliary components
•  Supports reliable accessory belt operation
•  Helps maintain correct belt tension and pulley contact
•  Replaces cracked, glazed, stretched, frayed, noisy, or slipping belts
•  Suitable for scheduled servicing and preventative maintenance
•  OE Match replacement for Porsche 991.1 and 992.1 engine service.

Why Replace This Part?
Drive belts wear over time due to heat, engine 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 issues, accessory faults, 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 belt tensioner, pulleys, alternator, 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 991.1 or 992.1 engine service.

Where it fits on the car
This drive belt fits within the engine auxiliary belt drive system on Porsche 991.1 S, 991.1 Turbo, 992.1 S, and 992.1 GTS models. It runs around the relevant pulleys according to the factory belt routing.

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Related, superseded, cross reference or alternative numbers for comparison.

0PB903137E

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