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The Boundary Racing FA20D 12mm Billet Oil Pump Gear (FA20D-12MM-OPG) is engineered to eliminate one of the weak points of the factory FA20 oiling system. Precision CNC-machined in the USA from premium chromoly billet steel, this direct replacement oil pump gear set is designed to withstand the extreme loads and high RPM conditions that can cause OEM powdered metal gears to fail. Whether you're building a naturally aspirated street car, a forced induction setup, or a dedicated track vehicle, Boundary's billet oil pump gears provide the durability and reliability needed to protect your engine under demanding conditions.
Each gear set is surface hardened and mirror finished to reduce friction and wear while maintaining precise oil pressure throughout the engine's operating range. Backed by Boundary Racing's lifetime warranty, these billet gears are a trusted upgrade for performance engine builders looking to improve oil system reliability without compromising factory fitment. Designed specifically for the Subaru BRZ, Toyota 86/GT86, and Scion FR-S equipped with the FA20D 2.0L engine, the FA20D-12MM-OPG installs as a direct replacement for the factory oil pump gears.
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