In the factory design, the oil pickup pipe located in the oil pan is sealed to the oil pump with an axially pressed rubber piece. After years of usage, this seal will start to leak, decreasing the oil pressure feeding the engine, especially during a cold start. With this flange the seal is no longer axially, but radially inside the oil pump housing with two Viton O ring seals, which is a far more reliable solution. The flange is an aluminium 6061 high precision CNC part with a hard anodized finish.
With the flange also additional Viton O rings for the crankcase breathing system are supplied.
Replaces seal 71754365 or 71749352.