Rear crankshaft seal with housing 2418F701 Perkins, aftermarket

Rear crankshaft seal with housing 2418F701 is an aftermarket part for the Perkins 1000 series engine. The card also lists 02/202370, 996-514. The photo shows the seal together with its metal housing and gasket.

The crankshaft seal keeps the engine oil in where the shaft leaves the block: the rear seal at the flywheel end, the front seal at the pulley end. A hardened or worn seal leaks: at the rear towards the clutch and flywheel housing, at the front onto the pulley and belt. Oil on the belt makes it slip, and the alternator and water pump work less well. The seal is a tight fit in the block or cover by its outer edge, and its inner lip rests on the turning shaft, pressed by a garter spring. Once it leaks, the oil level drops steadily and dirt sticks to the engine. Replacing the rear seal means removing the flywheel and separating the transmission, so the other parts at the flywheel end are checked at the same time.

Specifications

Compatibility

The part is listed for JCB machines fitted with these engines. The seal comes with its housing and is used on later 1000 series engines. The catalogue also has the genuine version of this part. Other parts are in Perkins engine.

Fitting

Fit the seal with its spring side facing into the engine, without tilting it. Check the crankcase breather at the same time.