Dayco 95109 Engine Timing Belt - Camshaft

Dayco Timing Belt 95109 Overview

The Dayco 95109 engine timing belt is a black chloroprene belt with reinforced teeth and a square tooth profile for camshaft timing applications. It is built for the Porsche 911 and Porsche 928 fitments listed below, including the 1983 Porsche 911 camshaft application and 1978-1982 Porsche 928 camshaft applications.

Dayco Timing Belt 95109 is part of the Dayco Timing Belt line, a product range focused on engine timing service components. This belt uses a standard-temperature construction with reinforced teeth, a 0.99-inch (25 mm) top width, 219 teeth, and a 9.525 mm (.37500 in) tooth pitch for precise timing engagement.

• Chloroprene construction with black finish
• Square tooth profile for camshaft timing service
• 219 teeth with 9.525 mm tooth pitch
• 0.99-inch (25 mm) top width
• Effective length: 82.13 in (2086 mm)
• Fits Porsche 911 and Porsche 928 camshaft applications

Detailed Product Description

Built for engine valve train service, the Dayco 95109 timing belt is specified for Porsche camshaft applications where accurate belt indexing and tooth engagement matter. The reinforced-tooth construction and chloroprene material support consistent operation in standard-temperature conditions, while the square tooth design matches the listed OE-style applications. This part number 95109 is also cross-referenced to Continental-ContiTech TB109 for the same application.

Compatible With 1983 Porsche 911, camshaft, and 1978-1982 Porsche 928, camshaft. Use this timing belt when servicing the Porsche 911 timing belt system or the Porsche 928 camshaft drive specified in the fitment data.

Common Issues This Part Addresses

• Worn or cracked timing belt material
• Loss of proper camshaft timing synchronization
• Noise caused by aged or damaged belt teeth
• Belt stretch or deterioration from service life
• Timing service replacement on listed Porsche applications

Installation Notes and Tips

Verify belt routing, tooth count, pitch, and effective length against the removed belt before installation. Confirm camshaft timing marks and engine timing alignment during service, and inspect related timing components for wear before returning the engine to operation. For the 1983 Porsche 911 and 1978-1982 Porsche 928 applications, follow the vehicle service procedure for timing belt replacement and tension setting.

Quality Assurance

Dayco manufactures timing components for engine service applications, and this belt is built with reinforced teeth and standard-temperature construction for the listed fitments. Part number 95109 is specified for Porsche 911 and Porsche 928 camshaft applications as shown in the fitment data.