Type 1 Heavy duty Mercedes retainer

Price for one piece! For single grooved valves.

Chromoly 2541 alloy..

Fits all M104 engines with our double valve springs and 7mm valves!

Also fits with Mercedes OEM straight springs and m104.980 doubled springs.

Suitable for M104, M102-16v, M111, M119, M120

Revlimit with Supertech springs 9,000 rpm

M104.980 springs 7500 rpm.

Does not fit conical valve springs from m104.942/995! If you have conical valve springs and will upgrade to double, you must also have the bottom washer