Gates T163 Engine Timing Belt

Gates PowerGrip Premium OE Timing Belt T163

The Gates PowerGrip Premium OE Timing Belt T163 is built for precise valve timing in select Pontiac applications. It uses an OE exact profile with fiberglass cord reinforcement and heat- and wear-resistant HCR belt material for dependable engine synchronization.

Key Features

• Gates PowerGrip Premium OE Timing Belt line for OE-style replacement fit and function
• OE Exact comparison rating for accurate timing belt replacement
• Curvilinear (II) profile type for proper tooth engagement
• Fiberglass cord material for strength and dimensional stability
• HCR belt material for resistance to heat, wear, and contamination
• Black automotive timing belt with 125 cogs
• Top width: 20 mm (.787 in); pitch: 9.5 mm (.375 in); pitch length: 1191 mm (46.875 in)
• No timing marks

Product Details

Gates designs OE timing belts for broad coverage across import and domestic vehicles, and the T163 follows that approach with a specification set matched to factory-style service needs. This timing belt is listed for 1989-1994 Pontiac Sunbird, 1990 Pontiac LeMans, 1990 Pontiac Optima, and 1989 Pontiac Grand Am, including the 1989 Pontiac LeMans 2nd Design application. If you are replacing a worn Pontiac Sunbird timing belt or servicing a Pontiac LeMans timing belt application, the Gates T163 provides the dimensions and construction expected for accurate engine timing.

This part cross-references Bando TB163 and Baldwin B163 for the same application.

Common Problems This Part Helps Address

• Engine timing drift caused by a stretched or worn belt
• Noise from a cracked, glazed, or contaminated timing belt
• Loss of synchronization between camshaft and crankshaft timing
• Service replacement for belts showing age-related wear
• Fitment issues when an OE-style replacement dimension is required

Installation Notes and Tips

Verify engine code, timing marks, and accessory routing before installation. Because this belt has no timing marks, align the engine timing components according to the factory service procedure and inspect related wear items during service. Confirm the 20 mm width, 9.5 mm pitch, and 1191 mm pitch length against the original belt before installation on your Pontiac Grand Am, Pontiac Sunbird, Pontiac LeMans, or Pontiac Optima application.

Quality Assurance

Gates is a global OE timing belt manufacturer with aftermarket coverage engineered to meet or exceed OE standards for fit, function, and performance. The PowerGrip Premium OE Timing Belt line is built for heat, wear, and contamination resistance in demanding engine environments.