Crusader 47039 Pierburg Electric Fuel Pump | 5.7L–8.1L MPI

Crusader 47039 — Pierburg Electric Fuel Pump Kit | 5.7L, 6.0L, 7.4L & 8.1L MPI Engines | Horizontal & Vertical Mount

Crusader 47039 is the OEM Pierburg high-pressure electric fuel pump kit for earlier model Crusader 5.7L, 6.0L, 7.4L, and 8.1L MPI (multi-port injected) engines. Kit includes the pump, isolating sleeve, terminal boots, fuel fittings, ring terminals, sealing washers, nuts, and lock washers. Mounts horizontally with brackets on return-type fuel systems, or vertically inside the fuel cooler assembly on return-less fuel systems. Not for use with the Crusader FCC (fuel control cell) internally mounted pump found on later model MPI engines that sits inside the fuel filter element.

Confirm Fitment Before Ordering

Not sure if this pump fits your engine? Give us your Crusader engine model and serial number and we’ll confirm it for you before you order — by email, text, or live chat. Be sure to identify whether your fuel system is return-type or return-less, and confirm your engine does not use the FCC internally mounted pump before ordering.

Part Specifications

• Crusader Part Number: 47039
• Pump Brand: Pierburg
• Type: High-pressure electric fuel pump kit
• Application: Earlier model Crusader 5.7L, 6.0L, 7.4L, and 8.1L MPI engines
• Mounting:
  • Horizontal with brackets — return-type fuel systems
  • Vertical inside fuel cooler assembly — return-less fuel systems
• Not For: Crusader FCC (fuel control cell) internally mounted pump on later model MPI engines
• Kit Contents: Pump, isolating sleeve, terminal boots, fuel fittings, ring terminals, sealing washers, nuts, lock washers
• OEM: Original Crusader
• Vendor: Crusader Marine

Additional Information

• Vendor: Crusader Marine
• Part Number: 47039
• Application: Earlier model Crusader 5.7L, 6.0L, 7.4L, 8.1L MPI engines
• Kit Contents: Pump, isolating sleeve, terminal boots, fuel fittings, ring terminals, sealing washers, nuts, lock washers

Installation Notes

Install following the applicable Crusader service manual for your engine model and fuel system type. Confirm your fuel system is return-type or return-less before installation to ensure correct mounting orientation, and verify your engine does not use the FCC internally mounted pump before ordering.

Frequently Asked Questions

Q: How do I know if Crusader 47039 fits my engine?
A: The 47039 fits earlier model Crusader 5.7L, 6.0L, 7.4L, and 8.1L MPI engines — it does not fit later model engines that use the FCC (fuel control cell) internally mounted pump. Not sure which pump your engine uses? Give us your Crusader engine model and serial number and we’ll confirm it for you — by email, text, or live chat.

Q: What is the difference between return-type and return-less fuel systems?
A: Return-type fuel systems circulate fuel from the tank to the engine and return unused fuel back to the tank via a return line. The pump mounts horizontally with brackets. Return-less (or dead-head) systems deliver fuel to the engine without a return line; the pump mounts vertically inside the fuel cooler assembly. The 47039 pump supports both configurations — confirm your system type before installation.

Q: What is the FCC pump and why won’t the 47039 work with it?
A: The FCC (fuel control cell) is an internally mounted pump used on later model Crusader MPI engines that sits down inside the fuel filter element housing. It is a different design from the externally mounted Pierburg pump. If your engine uses the FCC pump, the 47039 is not the correct replacement. Contact us by email, text, or live chat with your engine model and serial number to identify the correct part.

Q: What is included in the Crusader 47039 kit?
A: The kit includes the Pierburg electric fuel pump, isolating sleeve, terminal boots, fuel fittings, ring terminals, sealing washers, nuts, and lock washers — everything needed for a complete pump replacement on applicable Crusader MPI engines.

Q: Can I use ethanol-blended fuel with this pump?
A: Crusader approves ethanol-blended fuel rated E10 or lower for use in Crusader MPI engines. Fuels rated higher than E10 should not be used — they can damage the engine and fuel system and are not covered under warranty. Confirm fuel compatibility with your engine documentation before use.