Gates T148 Engine Timing Belt

Gates T148 Timing Belt Overview

The Gates PowerGrip Premium OE Timing Belt T148 is an engine timing belt built for precise valve timing and dependable operation in select Pontiac applications. It uses a curvilinear tooth profile, fiberglass cord reinforcement, and HCR belt material to help maintain fit, function, and performance in demanding engine environments.

Compatible with 1988-1991 Pontiac Optima and 1988-1990 Pontiac LeMans applications, this Gates T148 timing belt is an OE Exact replacement for drivers servicing import and domestic vehicles that require accurate timing belt geometry.

Key Features

• PowerGrip Premium OE Timing Belt from Gates
• OE Exact comparison rating for direct replacement use
• Curvilinear (II) tooth profile for consistent engagement
• Fiberglass cord construction for strength and stability
• HCR belt material for heat, wear, and contamination resistance
• 104 cog design with 39 in. pitch length (991 mm)
• Black automotive timing belt with no timing marks
• Top width: 17 mm (.669 in.); pitch: 9.5 mm (.375 in.)

Product Details

Gates manufactures OE timing belts for a wide range of vehicles, and the PowerGrip Premium OE Timing Belt line is built to meet or exceed OE standards for fit, function, and performance. The T148 is engineered for engines that depend on accurate camshaft and crankshaft synchronization, making it a practical choice for timing belt service on Pontiac Optima and Pontiac LeMans models listed in the fitment data. This part cross-references Dayco 95148 and AP Exhaust 40148 for the same application.

Common Issues This Part Can Address

• Worn or stretched timing belt causing incorrect valve timing
• Noise or irregular operation from an aging belt
• Heat-related belt deterioration
• Wear from contamination exposure in the timing cover area
• Service replacement for Pontiac Optima and Pontiac LeMans timing belt maintenance

Installation Notes and Tips

Verify engine application before installation, especially on 1990 Pontiac LeMans models noted as W/O tensioner pulley and interference engine applications. Inspect related timing components, belt routing, and alignment surfaces before fitting the new belt. Because this belt has no timing marks, follow the vehicle service procedure and timing references exactly during installation.

Quality Assurance

Gates is a global OE timing belt manufacturer with extensive aftermarket coverage for domestic, European, and Asian vehicles. The T148 is built to OE Exact standards for fit and performance, with materials selected to resist heat, wear, and contamination in engine service.