The Boundary high-flow billet oil pump gear is specified for Honda 1.8L inline‑4 applications and is listed to fit only the Orbit pump. Presented as a billet replacement gear intended for use within compatible oil pump assemblies, the listing clarifies it is purpose-built for that pump type and engine size. No additional application or material claims are made beyond the stated fitment.
Boundary Honda 1.8L I4 High Flow Billet Oil Pump Gear (Only Fits Orbit Pump)