Description

The Spool spline driven billet oil pump gears set replaces the standard N1, RB25 NEO and OEM GTR gears which are powdered metal. Precision machined from 4340 billet steel, featuring an N1 spec ‘wave’ profile for higher flow. These gears have been proven under extremely harsh conditions & stress.

Spline driven gears are a much better design than the stock mechanism, they are positive drive and a more effective way to drive the Nissan oil pump. This setup is used in all Toyota 1JZ and 2JZ oil pumps. The Spool spline driven billet oil pump gears eliminates the “chatter” or “back lash” which is common with the OEM RB drive setup.