Febi 08688 Engine Timing Chain Tensioner

Febi 08688 Engine Timing Chain Tensioner

Febi 08688 is an engine timing chain tensioner for select BMW applications. It is specified with a 68.0 mm housing length and 18.0 mm outer diameter, making it a direct-fit service part for the listed BMW 318is, 318ti, and Z3 models.

Key Features

• Engine timing chain tensioner for valve train service
• Housing length: 68.0 mm
• Outer diameter: 18.0 mm
• Fits 1991-1999 BMW 318is, N/A
• Fits 1995-1999 BMW 318ti, N/A
• Fits 1996-1999 BMW Z3, N/A
• Cross-references BMW OE part numbers 11 31 1 721 580 and 11 31 1 727 767 for the same application

Detailed Description

This Febi timing chain tensioner, part number 08688, is built for BMW engine timing chain service where correct chain tension is critical to valve train operation. The listed dimensions, 68.0 mm housing length and 18.0 mm outer diameter, help confirm application match for BMW 318is, BMW 318ti, and BMW Z3 models within the stated year ranges. Use this part when replacing a worn or noisy tensioner in a compatible BMW timing system.

What It Helps Address

• Timing chain slack
• Chain rattle at startup or idle
• Inconsistent chain tension in the valve train
• Wear-related timing system noise
• Service replacement for a failed tensioner assembly

Installation Notes and Tips

Verify the housing length and outer diameter against the removed part before installation. Confirm engine code and vehicle application by year, since fitment is listed for 1991-1999 BMW 318is, 1995-1999 BMW 318ti, and 1996-1999 BMW Z3. Inspect the timing chain, guides, and related valve train components during service to avoid repeat repairs.

Quality Assurance

Febi is an established aftermarket brand known for OE-style replacement parts. Part number 08688 is listed with direct interchange references to BMW OE numbers 11 31 1 721 580, 11 31 1 727 767, and 11 31 1 743 187 for the same application.