Wix Fuel Filter 33976 for 6.5L Diesel Chevrolet & GMC Trucks, Hummer (1992–2004) — Spin‑on Water‑Separating Protection

WIX 33976 is a premium spin‑on fuel filter engineered to capture dirt, rust, scale and water for 6.5L diesel Chevrolet, GMC trucks and Hummer models from 1992–2004.

Replacing a fuel filter with the correct part helps protect fuel injectors and pumps from contamination that builds up in older tanks and through routine fueling. The WIX 33976 is a direct-fit, high-efficiency replacement designed for light trucks and SUVs equipped with the 6.5L diesel engine, offering straightforward installation and long service intervals when used as part of regular maintenance.

How does the WIX 33976 protect my diesel fuel system?

The 33976 uses multi-layer media and a water-separating element to trap solids and shed free water before contaminants reach sensitive components. That layered filtration reduces abrasive particles and helps keep injectors and high-pressure pumps cleaner over time.

• Multi-stage filtration media captures dirt, rust and scale.
• Water separation reduces corrosion and injector fouling.
• Spin-on design provides a sealed replacement to prevent leaks during install.

Will this filter fit my vehicle and how do I confirm fitment?

The WIX 33976 is specified for GM vehicles with the 6.5L diesel engine from model years 1992–2004, covering many Chevrolet and GMC trucks and Hummer models. Always verify fitment using your vehicle year, make and model or the OEM part reference before purchase to ensure a correct match.

• Designed for 6.5L diesel Chevrolet and GMC trucks (1992–2002) and Hummer H1/HMMWV variants (1993–2004).
• Check vehicle compatibility with a VIN or part-finder tool on the retailer site.
• Compare dimensions and connections to the removed filter when possible.

How simple is installation and what maintenance interval should I expect?

The spin-on format of the WIX 33976 makes replacement straightforward—remove the old filter, apply a light coat of clean fuel or oil to the new gasket, and thread the new unit until hand-tight plus a fraction turn. Maintenance intervals depend on driving conditions and fuel quality; consult your vehicle’s service schedule and inspect the filter for water or heavy contamination during routine service.

• Spin-on design for tool-friendly swap and secure seal.
• Recommended inspection at regular service intervals or when fuel quality is questionable.
• Replace sooner if contaminated fuel or water is suspected.

What performance and longevity benefits can I expect from choosing WIX?

WIX filters are engineered to prolong service life of fuel-system components by reducing particle ingestion and water-related damage. The 33976 focuses on consistent filtration efficiency to help maintain fuel delivery performance between scheduled maintenance events.

• High-efficiency media aimed at preserving injector and pump life.
• Extended service design reduces replacement frequency when used per guidelines.
• Manufactured to meet or exceed common aftermarket standards for durability.

Who is this for: technicians, fleet managers and owners of Chevrolet, GMC light trucks and Hummer models equipped with the 6.5L diesel engine who need a dependable, direct-fit spin-on replacement filter. If you service older diesel vehicles and prioritize contamination control and simple maintenance, the WIX 33976 is a practical choice to keep fuel systems running reliably between scheduled services.