ACL Oil Pump. Orbit performance oil pumps are designed with high output and volume capabilities required for high RPM performance engines. The gerotors are precision machined from steel-copper alloy (FC0205), an exceptionally durable metal that assures dependability and durability. Tight housing and gerotor tolerances provide optimum pressure and flow requirements. Housings are die cast DC-12 aluminum and are anodized to prevent corrosion. All pumps are individually inspected and tested. Pump are equivalent to OEM pumps in design, engineering and metallurgy to meet or exceed OEM specifications. This will fit Nissan SR20DET S14 engines.