Racor PFF4245R2-04 Parfit Fuel Filter Head Assembly

Thumbnail Filmstrip of LB7 Duramax Parfit Fuel Filter Head Assembly Racor PFF4245R2-04 Images

LB7 Duramax Racor PFF4245R2-04 ParFit Fuel Filter Head Assembly

Restore reliable fuel filtration and eliminate leaks on your 2001–2004 GM 6.6L Duramax LB7 with the genuine Racor PFF4245R2-04 ParFit Fuel Filter Head Assembly. Racor (Parker Hannifin) was the original equipment manufacturer (OEM) supplier to GM for this assembly, and their ParFit program delivers a true direct-fit replacement that solves the well-known LB7 fuel filter head issues.

Over time, the factory fuel filter head develops leaks as its seals degrade. This allows air to enter the fuel system, leading to hard starting, loss of prime, difficult priming after filter changes, and potential damage to the expensive CP3 high-pressure fuel pump and injectors.

The Racor PFF4245R2-04 is a complete, ready-to-install assembly that replaces GM part #97780061 and includes everything needed for a clean, leak-free repair.

This assembly includes:

Precision-machined filter head with correct OEM hose barb orientation and mounting points (unlike many cheap aftermarket copies)
Integrated hand primer pump for easy system bleeding and priming
High-efficiency Racor fuel filter element with advanced Aquabloc® multi-stage coalescing media (primary depth coalescing + secondary polishing layer) for superior water separation and particle removal
Water-In-Fuel (WIF) sensor with wiring harness
Fuel heater
All new leak-proof seals and O-rings

Key Benefits & Features:

Direct bolt-on replacement — no modifications required
Superior filtration protects your fuel system investment
Correct port positioning and fitment for hassle-free installation
Built-in primer pump simplifies maintenance
Handles stock or mild aftermarket lift pump pressures (up to 30 PSI working pressure)
Biodiesel compatible
Racor quality and engineering you can trust

Fitment: 2001–2004 Chevrolet Silverado / GMC Sierra 2500HD & 3500HD with 6.6L Duramax LB7 (8th digit of VIN = 1).

Note: 2004 was a split year. Confirm your VIN before ordering. For 2004.5+ LLY/LBZ/LMM models, use Racor PFF4245R2-02 instead.

LB7 Duramax Racor PFF4245R2-04 ParFit Fuel Filter Head Assembly
Restore reliable fuel filtration and eliminate leaks on your 2001–2004 GM 6.6L Duramax LB7 with the genuine Racor PFF4245R2-04 ParFit Fuel Filter Head Assembly. Racor (Parker Hannifin) was the original equipment manufacturer (OEM) supplier to GM for this assembly, and their ParFit program delivers a true direct-fit replacement that solves the well-known LB7 fuel filter head issues.
Over time, the factory fuel filter head develops leaks as its seals degrade. This allows air to enter the fuel system, leading to hard starting, loss of prime, difficult priming after filter changes, and potential damage to the expensive CP3 high-pressure fuel pump and injectors.
The Racor PFF4245R2-04 is a complete, ready-to-install assembly that replaces GM part #97780061 and includes everything needed for a clean, leak-free repair.
This assembly includes:

Precision-machined filter head with correct OEM hose barb orientation and mounting points (unlike many cheap aftermarket copies)

Integrated hand primer pump for easy system bleeding and priming

High-efficiency Racor fuel filter element with advanced [...]