Crusader 47004 Inline Fuel Filter | TBI Fuel Injection | Crusader Marine Engine

Crusader 47004 — Inline Fuel Filter | TBI (Throttle Body Injection) | Crusader Marine Engine

Crusader 47004 is an OEM inline fuel filter for Crusader marine engines equipped with TBI (Throttle Body Injection) fuel systems. The inline fuel filter protects the TBI injector and fuel pressure regulator from contaminants in the fuel supply. Regular fuel filter replacement is a standard maintenance item on TBI-equipped Crusader engines — a clogged filter restricts fuel flow, causes fuel pressure drop, and leads to hard starting, poor performance, and lean-running conditions. Cross-references IND556003 and CRU23250. Contact us with your Crusader engine model and serial number to confirm 47004 is the correct filter for your specific TBI application before ordering.

Confirm Fitment Before Ordering

Confirm your Crusader engine is equipped with a TBI fuel injection system before ordering. Contact us with your engine model and serial number by email, text, or live chat and we’ll verify 47004 is the correct inline fuel filter for your application.

Part Specifications

• Crusader Part Number: 47004
• Cross-References: IND556003, CRU23250
• Filter Type: Inline fuel filter
• Application: Crusader marine engines with TBI (Throttle Body Injection)
• Type: OEM replacement
• Vendor: Crusader Engines

Additional Information

• Vendor: Crusader Engines
• Part Number: 47004
• Cross-References: IND556003, CRU23250
• Filter Type: Inline fuel filter
• Application: Crusader TBI marine engines

Installation Notes

Fuel filter replacement should be performed following the applicable Crusader TBI service manual for your engine model. Relieve fuel system pressure before disconnecting the filter. Note the direction of fuel flow marked on the filter housing and install accordingly.

Frequently Asked Questions

Q: What engines does Crusader 47004 fit?
A: Crusader 47004 is the OEM inline fuel filter for Crusader marine engines equipped with TBI (Throttle Body Injection) fuel systems. Contact us with your engine model and serial number to confirm correct fitment before ordering.

Q: What does TBI mean on a Crusader marine engine?
A: TBI stands for Throttle Body Injection — a type of fuel injection system where one or two injectors are mounted centrally in a throttle body at the top of the intake manifold, similar in appearance to a carburetor. Crusader used TBI systems on a range of their 5.0L, 5.7L, and 7.4L marine engines. TBI engines require an inline fuel filter to protect the injectors from fuel system contaminants.

Q: How often should I replace the fuel filter on my Crusader TBI engine?
A: Crusader recommends fuel filter replacement as part of routine annual maintenance on TBI-equipped engines. Replace sooner if you notice symptoms of a restricted filter: hard starting, reduced power, rough idle, or fuel pressure readings below specification.

Q: What are the cross-reference part numbers for Crusader 47004?
A: Crusader 47004 cross-references to IND556003 and CRU23250.

Q: What happens if I don’t replace a clogged inline fuel filter?
A: A restricted inline fuel filter reduces fuel flow to the TBI injector, causing fuel pressure to drop below the system’s operating specification. This results in lean fuel mixture, hard starting, loss of power under load, rough idle, and in severe cases, engine stalling. In TBI systems, sustained low fuel pressure can also cause the injector to work harder, potentially shortening its service life.