Drive belt. Porsche 981 Boxster & Cayman / 981C Boxster & Cayman / 991.1 / 991.2 / 992 / Cayman GT4  ❭  0PB903137G

Drive belt
This OE Match drive belt is a replacement auxiliary / serpentine belt for selected Porsche 981, 981C Cayman, 991.1, 991.2, 992, and GT4 models. This drive belt fits on the engine auxiliary belt drive system. It runs around the designated pulleys according to the factory belt routing for the specific Porsche model and engine type.

Fits:
Porsche 991.1 Carrera 3.4L 2012-16 Engine MA1.04
Porsche 991.1 Carrera S 3.8L 2012-2016 Engine MA1.03
Cars without PDCC
Porsche 991.2 Carrera 3.0L 2017>> Engine MDC.KA
Cars without sport chassis

Porsche 992 Carrera
Porsche 992 S and GTS from 15.06.20
Cars without PDCC

Porsche 992.2 Carrera 2 

Porsche 991.1 Turbo 3.8L 2014-18 Engine MA1.71
Porsche 991.2 Turbo 3.8L 2018-20
Cars without PDCC


Porsche 981 Boxster 2012-16
Porsche 981SP Boxster Spyder 2016
Porsche 982 (718) Boxster GTS 4.0Ltr

Porsche 981C Cayman 2014-16
Porsche 981 Cayman GT4 2016
Porsche 982C (718C) Cayman GTS 4.0Ltr

Diagram ref no 7

The drive belt transfers rotational power from the engine pulley system to the auxiliary components. Depending on the vehicle specification, it may drive components such as the alternator, water pump, air conditioning compressor, or other belt-driven accessories. A correctly tensioned and good-condition belt is essential for reliable engine and charging system operation.

Functions
•  Drives engine auxiliary components
•  Helps power belt-driven systems such as charging, cooling, and air conditioning
•  Supports reliable alternator and accessory operation
•  Helps maintain correct auxiliary pulley function
•  Replaces cracked, worn, noisy, stretched, or damaged original belts
•  Supports smooth and efficient engine accessory drive operation
•   OE Match replacement for routine service and preventative maintenance.

Why Replace This Part?
Drive belts are exposed to heat, friction, tension, pulley load, oil contamination, and age-related wear. Over time, the belt can crack, glaze, stretch, fray, squeal, or lose grip. A worn belt can cause belt noise, charging issues, cooling problems, air conditioning faults, or complete accessory drive failure. Replacing the drive belt helps maintain reliability and prevents avoidable breakdowns.

When to Replace This Part
•   The belt is cracked, frayed, glazed, or visibly worn
•   Squealing or chirping noises are heard from the belt area
•   The belt has become contaminated with oil or coolant
•   The auxiliary belt tensioner or pulleys are being replaced
•   Charging, cooling, or air conditioning performance is affected
•   The belt has been removed during engine service
•   Preventative replacement is being carried out during routine maintenance

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

0PB903137G

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