PRC3901 Petrol Electric External Fuel Pump – Series III & Defender 3.5 V8

Keep your classic V8 running smoothly with this External Electric Fuel Pump (Part No. PRC3901) designed for 3.5L twin-carburetor petrol engines. This pump delivers consistent fuel flow and pressure, ensuring stable idle, smooth acceleration, and proper fueling under load—ideal for restoring drivability on aging systems.

A direct replacement for the original external pump, it mounts in the factory location and connects to the existing fuel lines and wiring without modification.

Fits:

• Series III – 3.5 V8 (twin carburetor models)

• Defender – 3.5 V8 (twin carburetor models)

Install tip: Always check fuel hoses and filters during pump replacement, as worn lines can restrict flow or introduce leaks.*

Supersession Part Numbers

No supersessions found.

FAQ

Is this pump electric or mechanical?
This is an electric external pump, correct for the listed V8 carburetor models.

Does it require modifications to install?
No — it is a direct replacement for PRC3901 and fits the factory mounting and electrical layout.

Will this help with hard starting or fuel starvation?
Yes — a failing pump commonly causes both issues, and replacing it restores reliable fuel delivery.

Part Number: PRC3901

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