Sierra Marine 18-2056 Oil Seal

Sierra 18-2056 Oil seal for the Upper Drive Housing. Note: this is the lower of the two vertical seals in upper drive shaft housing, seals around the lower drive shaft going into upper driveshaft housing, seals water out of upper driveshaft housing.
Replaces Mercruiser part # 26-965031.
If needed, order 18-2049 oil seal to replace the oil side seal just above the water seal. It replaces Mercruiser # 26-32511.