Gearcase Lower Pinion Bearing | Sierra Marine 18-1170 Points Gasket and seal kit for

Gasket and seal kit for the Hurth 630 and ZF 63 series parallel shaft and down angle transmissions models

Can be used for many other tough cleaning jobs including bathrooms

V6 and V8 engines from 1964-1986

Thermoplastic antishock material is designed for the harsh marine environment

ARCO guarantees the highest quality in every product

Gearcase Lower Pinion Bearing | Sierra Marine 18-1170 Points Gasket and seal kit forGearcase Lower Pinion Bearing Sierra 18 1170 Sierra 18 1170 Pinion Bearing Gearcase Lower Pinion Bearing Replaces Mercury 31 812767A1 Replaces OMC 983892 Additional Information SIERRA has a 58 year history as a leading global manufacturer of aftermarket engine and drive parts for the marine industry. In 2022, we expanded the scope of the SIERRA brand to include a wide range of products for the aftermarket boating business, as well as products for land