Rocker Arm, BMW - E46 M3, MZ3, Z4M (11337833259)

Worn rocker arms will make valve adjustments impossible.

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Price:
$104.99

The rocker arm is the normal wear item in the S54 valve train. Rocker arms, also known as cam followers, press down on the valve retainer to open the valves. Normal wear on the rocker arm pad (finger) is what requires periodic and regular S54 valve adjustments. But if the pad has worn down so much that the thickest valve shim is not enough, then it's time for new rocker arms. Rocker wear is likely not a concern until after 150,000 miles but only regular valve adjustments will indicate how much the rockers are wearing.

New rocker arms are also required when new camshafts are installed. This is because the camshaft and the rocker arm finger wear together.

This is a Genuine BMW rocker arm with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.

BMW Fitments:

3 Series
E46 (99-05) > M3
Z Series
E36/7 / E36/8 Z3 (96-02) > Z3 M - S54
Z Series
E85 / E86 Z4 (03-08) > Z4 M
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