
The PROX crankshaft oil seal in the size 25x45x7 mm is an essential replacement part to maintain engine sealing on off-road machines. Designed to connect the crankshaft and the crankcase, it prevents oil leaks while protecting internal components from dust, mud, and debris encountered off the track.
Manufactured by PROX, this oil seal is sold individually (UNIT) under the manufacturer reference 41.4-1051. Its compact size makes it suitable for regular maintenance interventions, replacement after wear, or a complete overhaul of the bottom end. Easy to install for a skilled mechanic, it should be placed on clean surfaces and properly aligned to ensure optimal sealing.
Common compatibilities (examples):