Dayco 95203 Engine Timing Belt - Camshaft

Dayco 95203 Timing Belt for Pontiac Camshaft Applications

The Dayco 95203 timing belt is an engine timing belt for Pontiac camshaft applications that require a 111-tooth, round-tooth belt with a 9.525 mm tooth pitch. Built from chloroprene with standard temperature and load construction, it is specified for precise valve timing in select Pontiac LeMans and Pontiac Optima models.

For shoppers searching for a Pontiac LeMans timing belt or Pontiac Optima camshaft timing belt, this Dayco Timing Belt line focuses on OE-style fitment and dimensional accuracy. The 95203 part number is also a direct reference point for cross-shopping timing belt replacements in the same application.

Key Features

• Brand: Dayco Timing Belt
• Part number: 95203
• Engine timing belt for camshaft drive applications
• Chloroprene belt material
• Black finish
• 111 teeth with round-tooth profile
• 9.525 mm tooth pitch
• 17 mm top width
• 41.62 in effective length
• Standard temperature and load construction
• No timing marks

Detailed Description

The Dayco 95203 is an engine timing belt engineered for select Pontiac four-cylinder applications that use a camshaft-driven timing system. Its 17 mm top width, 111 teeth, and round-tooth profile support accurate belt engagement, while the chloroprene construction and standard temperature/load design match common OE replacement requirements. This part number is listed for 1990-1993 Pontiac LeMans, camshaft, and 1990-1991 Pontiac Optima, camshaft.

This part cross-references ACDelco TB203 and Gates T203 for the same application. If you are replacing a worn Pontiac LeMans timing belt or servicing a Pontiac Optima camshaft drive, the Dayco 95203 provides the dimensional specs needed for a direct-fit timing belt selection.

What It Helps Address

• Worn or stretched timing belt material
• Noise from an aging camshaft drive belt
• Incorrect valve timing caused by belt wear
• Service replacement for scheduled timing belt maintenance
• Fitment issues when matching the correct tooth count and length

Installation Notes and Tips

Verify the engine code, belt width, tooth count, and effective length before installation. This belt has no timing marks, so timing alignment should be confirmed using the vehicle’s service procedure and related engine timing references. For 1990 Pontiac LeMans and Pontiac Optima applications, note the 2nd design and tensioner-related service notes listed in the fitment data. Replace related wear components and inspect pulleys, tensioners, and seals during timing service.

• Fits 1991-1993 Pontiac LeMans, camshaft
• Fits 1991 Pontiac Optima, camshaft
• Fits 1990 Pontiac LeMans, camshaft
• Fits 1990 Pontiac Optima, camshaft

Quality Assurance

Dayco timing belts are built for engine timing service where dimensional consistency and belt construction matter. The 95203 is identified by a clear OE-style part number and published fitment data for Pontiac LeMans and Pontiac Optima camshaft applications.