ATRACYPART 6.6L Duramax Fuel Filter Housing Assembly — Aluminum Housing with Seals, Fits 2001–2016 Chevy/GMC HD

This is a complete 6.6L Duramax diesel fuel filter housing assembly with seals that directly replaces factory units for 2001–2016 Chevy Silverado/GMC Sierra 2500HD/3500HD and select Express/Savana models.

Keep your diesel fuel system protected with a full housing assembly engineered to match OEM fit and function. The ATRACYPART unit ships with high-quality seals, a durable aluminum housing, and is designed to replace part numbers TP3018, TP3012, 12664429, 12633243, 33960XE and LFF6012. Backed by a 2-year warranty, it’s built for heavy-duty use in towing and commercial service where reliable fuel delivery matters.

How does this assembly protect my Duramax engine?

The housing secures the filter element and maintains proper fuel pressure while keeping microscopic debris out of the fuel rail, injectors and pump. A robust housing plus fresh seals reduce the risk of leaks and contamination that can cause reduced performance or premature component wear.

• Seals included to prevent fuel leaks and preserve system pressure.
• Multi-layer filtration compatibility to trap fine particulates and water.
• Aluminum construction resists corrosion and diesel exposure.
• Designed to OEM dimensions to ensure correct flow path and sealing.

Will this fit my vehicle and replace my old part number?

This assembly is made for 6.6L Duramax diesel applications and fits a long list of Chevrolet and GMC models from 2001–2016, including Silverado, Sierra, Express and Savana variants. It’s specified as a direct replacement for the OEM part numbers listed, so it installs without modification when matched to the correct model year and engine.

• Compatible with 2001–2016 Chevy Silverado and GMC Sierra 2500/3500 HD models.
• Fits 2012–2016 Chevrolet Express and GMC Savana 2500/3500/4500.
• Replaces TP3018, TP3012, 12664429, 12633243, 33960XE, LFF6012.
• Direct bolt-on design—no cutting or adapters required.

How durable and serviceable is this fuel filter housing?

Built with heavy-duty materials and engineered seals, the housing is intended for long service life even in harsh conditions like towing or commercial cycles. Routine replacement of the filter element is still required; this assembly secures the element and preserves proper operation over many intervals.

• Corrosion-resistant aluminum housing for extended durability.
• High-quality rubber O-rings included for better sealing longevity.
• Manufactured to match factory tolerances for reliable servicing.
• 2-year warranty for coverage against material or workmanship defects.

How do I install it, and what should I know before replacing the housing?

Installation is a bolt-on replacement but professional or experienced DIY installation is recommended to avoid fuel system damage or leaks. Depressurize the fuel system, replace the filter element as required, and use the supplied seals to ensure a leak-free fit. Always follow vehicle-specific torque settings and disposal rules for used fuel components.

• Depressurize fuel system before removal to limit spills and hazards.
• Use supplied seals and replace the filter element during installation.
• Tighten bolts to manufacturer torque specs; check for leaks after startup.
• Professional installation recommended if you’re not comfortable with fuel systems.

Who is this for: This ATRACYPART fuel filter housing assembly is aimed at owners and fleet managers of 6.6L Duramax-equipped Chevrolet and GMC trucks and vans who need a dependable, direct-fit replacement. It’s a practical choice for technicians, towing operators and commercial users who require OEM-style performance, leak-resistant sealing, and a durable aluminum housing backed by a 2-year warranty.