What kind of oil is recommended for use with this pump?

Peterson Fluid Systems designed this pump to maintain consistent pressure even with low-viscosity oil at high temperatures. Refer to your engine builder's recommendations for the correct oil type and viscosity for your specific application.

What accessories can be mounted to the rear drive?

The rear drive provision on the R4 pump allows for direct mounting of accessories like fuel pumps, vacuum pumps, or power steering pumps. You will need to source the appropriate adapter for your chosen accessory.

Where are Peterson Fluid Systems oil pumps manufactured?

Peterson Fluid Systems R4 oil pumps are made in the USA. All pumps are engineered, machined, assembled, and tested in-house in Longmont, Colorado.

Peterson Fluid Systems

Peterson Fluid Systems R4 5-Stage Oil Pump - Left Side Mount - HV - Dr Rear Drive w/ Hex

Name: Peterson Fluid Systems R4 5-Stage Oil Pump - Left Side Mount - HV - Dr Rear Drive w/ Hex
Brand: Peterson Fluid Systems
Price: 2148.13 USD
Availability: InStock

$2148.13

Motorsports-grade oil pump with a twisted lobe rotor design for consistent oil pressure and crankcase vacuum.

Key Features

Twisted lobe rotor design — maintains consistent oil pressure.
Aluminum rotors — reduces weight.
5/8" steel driveshaft with 3/8" machined male hex — compatible with cam or accessory drives.
Rear drive provision — allows direct mounting of accessories.
Profile machining and shallow depth screw-in fittings — reduces weight.
Made in the USA — ensures well-made parts.

⚠️ CA WARNING: This product can expose you to chemicals known to the State of California to cause cancer and/or birth defects or other reproductive harm. Learn more