Original BMW Timing Belt Tensioner Spring for BMW 325, 325e, 325i, 525i, and 528e (1982–1993)

Made in Germany, this Original BMW compression spring loads the timing belt tensioner on the M20 six-cylinder in the 325, 325e, 325es, 325i, 325is, 325iX, 525i, and 528e built from 1982–1993. BMW names it a compression spring, and it is the spring that rides on the tensioner pin. A tensioner spring of this kind supplies the steady force that holds the tensioner against the timing belt. BMW gives the spring a weight of 10 g and shows production of this number running from September 1977, which covers every car in this fitment. It is a small piece, but it is what keeps the tensioner loaded.

Original BMW Parts carry a 24-month parts warranty.

This number supersedes the earlier 11-31-1-266-767, and BMW marks the newer spring as interchangeable on older engines, so it can replace a car that left the factory with the previous number. In BMW's parts data the spring sits with the M20 across the E30 3 Series, the E28 5 Series, and the E34 525i, which is how a 1980s 325e and a 1990 525i end up sharing one tensioner spring. The engine is the common factor here rather than the chassis. The spring is sold individually.

Technical Details

• Manufacturer: BMW
• Part number: 11-31-1-267-746
• BMW part name: compression spring
• Function: timing belt tensioner pin spring
• Weight: 10 g (0.35 oz)
• Production start: September 1977
• Supersedes 11-31-1-266-767, interchangeable with older engines
• Engine: BMW M20
• Country of manufacture: Germany
• Sold individually
• Warranty: 24-month Original BMW parts warranty

Common Questions

My old spring carries the number 11-31-1-266-767. Is this the right replacement?
Yes. BMW replaced that number with this one and lists the two as interchangeable.

Does a 1990 525i use the same spring as a 325i?
Yes, for the M20-powered E34 525i covered here. BMW groups both under the same M20 tensioner spring.

Fitment & Compatibility

Confirm your model year and submodel against the table below before ordering. PMB Performance has spent over 20 years matching parts to vehicles and can verify this against your VIN.