Oil Pump Rebuild Kit for Ford Barra DOHC 4.0L

The factory Ford Barra oil pump internals are a known weak point in high-performance applications, with OEM gears prone to shattering under high RPM, boost, or drivetrain shock. The factory backing plate can also flex, leading to significant pressure loss at higher RPMs. The Atomic Billet Oil Pump Rebuild Kit directly addresses these vulnerabilities. This kit transforms a standard OEM alloy housing into a robust, race-ready unit by replacing the weak factory components. It features Gas Nitrided 4340 Billet Steel Gears for superior wear resistance and longevity, and a rigid, Gas-Nitrided Chromoly (CRMO) backing plate designed to prevent flex and ensure stable oil pressure, even at high RPMs. The kit also includes a high-pressure relief spring to enhance bearing protection under load. Included in the kit are CNC billet oil pump gears (Gas Nitrided), a gas-nitrided CRMO backing plate, a high-pressure relief spring, a pickup O-ring, high-tensile countersunk bolts, and comprehensive installation instructions. Critical installation notes emphasize checking housing wear, maintaining surgical cleanliness during assembly, and priming the pump with petroleum jelly or assembly lube before the initial startup to prevent dry starts.