The Nihilo Oil Pump Gear is designed to directly replace the plastic O.E.M. gear. As many of you may be aware, the stock plastic gear has been known to distort and warp under harsh conditions such as excessive heat or dirty oil, causing the oil pump to malfunction. This can be catastrophic to your motor and cause irreparable damage. Nihilo understands that billet aluminum is better than plastic, and the Nihilo gear will not warp or distort in harsh conditions.