High-Performance ACL D Series Oil Pump

ACL High-Performance Oil Pump for D-Series Engines

Feed your D-series build the lifeblood it deserves with ACL’s high-performance oil pump. Precision-machined steel rotors spin inside an ultra-tight housing to move up to 20% more volume than tired factory units, stabilising pressure from idle to redline and eliminating the drop-offs that starve bearings during hard cornering, turbo boost, or extended track sessions.

Engineered for the abuse of road-race, drag, and boosted street cars, the pump is heat-treated for superior wear resistance, then micro-finished to slash parasitic drag. An uprated pressure relief spring holds a rock-solid 70-75 psi, keeping rod journals bathed in oil even at 9,000 rpm. Every assembly is flow-bench tested at the ACL facility, so you bolt on consistent performance—not guesswork.

Direct-fit for Honda Civic, CRX, Del Sol, and Integra models running D15, D16, and other D Series engines, the unit reuses OEM pickup and pan, yet adds the strength and reliability tuners expect from a proven Australian motorsport brand. Whether you’re chasing a weekend autocross trophy or dialing in a full-tilt turbo project, this high-performance oil pump is cheap insurance for your build.

Key Benefits

• +20% flow and quicker pressure rise vs. stock
• Hardened internals, nitrided shafts, and enlarged passages for long life under boost
• CNC-machined relief valve maintains stable psi across the rev range
• 100% bolt-on—no housing clearancing required

Installation Snapshot

• Skill Level: Intermediate
• Average Time: 1–2 hrs
• Included Hardware: pre-shimmed relief spring & O-ring
• Tune/Cutting Required: none