Oil Pressure Relief Valve Piston (16mm X 20mm) - Type 1 Engines

Standard replacement Oil pressure relief piston.

The standard pistons are the same front and back.

Note:- Standard springs are only available second hand now, or Cool Air sell Oil pressure booster kits that include new stronger springs.

The long spring goes at the front (pulley) end and the short spring goes at the back (flywheel) end.

2 required per engine