This is a set of hardware found on your M10 Rocker shaft. One set does one cylinder head. When rebuilding an engine we like to replace all associated hardware.
Includes the following:
-x8 Rocker Washer
-x8 Thrust Ring
-x8 Snap Ring
*To hold the rocker in place you will need either the stock retention springs (optional, listed above) OR our rocker arm locks.