LB7 Fuel Filter Housing Head For 6.6L Duramax Chevy Silverado GMC Sierra 2001 04

Product Overview

The 6.6L Duramax LB7 fuel filter housing head restores leak-free fuel filtration on early Duramax engines. This housing head replaces the original component that is prone to cracking and o-ring failure, causing air intrusion and hard starts. Designed for 2001-2004 Silverado and Sierra HD models, the fuel filter housing head returns your fuel system to reliable, factory-spec performance for daily driving or heavy towing.

Key Features & Performance

• Direct OE-style replacement for the factory LB7 fuel filter housing head
• Precision-machined sealing surfaces eliminate common leak points
• Includes built-in primer pump provision for manual fuel system priming
• Durable aluminum alloy construction resists heat and diesel fuel degradation
• Drop-in fitment with all stock fuel line and sensor connections
• Restores proper fuel pressure and prevents air-lock conditions

Fitment & Compatibility

• 2001-2004 Chevrolet Silverado 2500HD/3500 with 6.6L LB7 Duramax
• 2001-2004 GMC Sierra 2500HD/3500 with 6.6L LB7 Duramax
• Chevrolet Kodiak / GMC Topkick C4500-C5500 with LB7 engine (2001-2004)

Common Uses

• Replacing a cracked or warped stock fuel filter housing head
• Fixing persistent fuel leaks at the filter housing
• Curing hard-start and rough idle caused by air in the fuel lines
• Preventative maintenance on high-mileage LB7 Duramax trucks

Technical Specifications

• Material: Aluminum
• Engine Compatibility: 6.6L LB7 Duramax diesel
• Year Range: 2001-2004
• Includes: Housing head assembly (filter not included)
• Connection Type: Push-lock and threaded fuel line fittings (match OE)
• Primer Pump Provision: Yes, integrated manual primer pump boss

Frequently Asked Questions

Q: Will this fit a 2005 Duramax LLY? A: No, this housing head is specifically for 2001-2004 LB7 engines; LLY models use a different fuel filter head design.

Q: Do I need a new filter element when replacing the housing head? A: The new filters are not included, but it is recommended to install a fresh fuel filter to avoid contaminating the new housing head.

Product appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.