Body #12 1.375in

The Barnes Body #12 1.375in Oil Pump Gear Body (MPN: GHS-021) is a precision aluminum pump component engineered for high-flow oil circulation in high-performance engine builds. This 12 AN inlet and outlet gear body delivers the hydraulic capacity demanded by forced-induction and large-displacement naturally aspirated applications where standard oiling systems fall short. The 1.375-inch wide gear body profile accommodates Barnes' reputation for building durable, efficient oil pump assemblies that maintain consistent pressure across the RPM range.

Machined from aluminum and finished in black anodize for corrosion resistance, this pump body tolerates the thermal cycling and pressure cycles of sustained high-performance operation. The dual 12 AN ports (inlet/outlet) interface directly with AN-port manifold blocks and hard-line oil systems common in race and street applications. At 0.37 lbs, the component adds minimal rotating mass while maintaining the structural rigidity required for positive gear engagement and minimal volumetric loss. The compact 4 x 1.6 x 4.75-inch footprint fits within tight engine bay packaging constraints typical of V8 and twin-turbo installations.

This gear body is designed for builders and engine shops assembling custom pump assemblies where OEM oiling is inadequate. High-flow oil delivery is critical for protecting rod and cam bearings under boost pressure, maintaining film strength during sustained track sessions, and managing thermal loads in turbocharged or supercharged powerplants. The verified Barnes brand lineage ensures fitment integrity and performance consistency when paired with matching pump internals and drive systems. Each unit ships individually and is ready for integration into complete pump assemblies.