Original BMW Coolant Distribution Tee for BMW E28 M5 and E24 M6 (1987–1988)

Built for the S38 six-cylinder, this Original BMW distribution piece is a small coolant tee in the engine cooling system of the 1988 BMW M5 and the 1987–1988 M6. A distribution tee splits one coolant passage into branches, so a single line can feed or return coolant to more than one hose. On these cars it is part of the system of thermostat, coolant hoses, and connection pipes that holds the S38 at its working temperature. BMW has produced it since April 1984, and the part weighs only 7 g.

Original BMW Parts carry a 24-month parts warranty.

BMW applies this tee only to S38-engined cars. BMW's parts data shows it on the E28 M5, the E24 M6 and its European twin the M635CSi, and the E23 745i with the S38 engine. In the U.S., that means the M5 and M6.

Technical Details

• Manufacturer: BMW, sold as an Original BMW part
• Part number: 11-53-1-307-324
• BMW part name: distribution piece
• Function: radiator coolant distribution tee
• Engine: S38 six-cylinder
• Weight: 7 g (0.25 oz)
• Production start: April 1984
• Sold individually
• Warranty: 24-month Original BMW parts warranty

Common Questions

Does this tee fit a regular 535i or 635CSi?
No. BMW applies it only to S38-engined cars, which in the U.S. means the E28 M5 and E24 M6.

How is it sold?
One distribution tee per order.

PMB Performance supplies Original BMW cooling parts for the S38 M cars.

Fitment & Compatibility

Use the fitment table below to confirm the exact year, make, model, submodel, and any application notes before ordering. With over 20 years of parts and fitment experience, PMB Performance can match this to your VIN.