Mercruiser drive shaft o ring *Upper gearcase part

Mercruiser outdrive parts drawing *Videos *SEI sterndrive

Mercruiser drive shaft o ring *Upper gearcase part

GLM Marine aftermarket Mercruiser upper gearcase drive shaft o ring

GLM Marine aftermarket part # 81180
OEM # 25-25439
O ring is included in Mercruiser seal kit.
Mercruiser Tech support Exploded view outdrive drawings

81180 Mercruiser o ring

Please note this o ring is included in GlM Marines aftermarket seal kit number 87510. Fits on shift shaft GLM P/N 21030 and can be used with MC-1, MR and Alpha one outdrives.

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