
PROX crankshaft oil seal in the size of 23x35x7 mm, manufacturer reference 41.2-23174. Designed for the motocross universe, this oil seal follows the standard dimensions for small displacement engines and is aimed at riders concerned with reliable sealing during an engine service or replacement due to leaks.
The oil seal ensures sealing between the crankshaft and the crankcase to limit oil loss and protect the intake ports from impurities. Ideal for routine maintenance operations — replacement during engine disassembly or prevention after detecting a seep — it fits into standard procedures for restoring a crankshaft.
Frequent compatibility (examples):
Before installation, check the size and condition of the seal holder. For a lasting result, clean the seating surface, check the alignment of the crankshaft, and lightly lubricate the lip of the oil seal at the time of installation.