Premium Guard Diesel Fuel Filter PG DF99173 — Fits GM 6.6L & 3.0L Trucks, 4µm Particle + Water Separation

Premium Guard PG DF99173 is a heavy-duty diesel fuel filter engineered to protect modern high‑pressure diesel fuel systems in Chevrolet, GMC and Cadillac trucks and SUVs.

Designed for vehicles that use high‑pressure common‑rail systems, this replacement filter delivers fine particle and water separation to help keep injectors and pumps cleaner under severe operating conditions. It matches the fit and function required by many GM 6.6L and 3.0L diesel applications and swaps in for several popular OE and aftermarket part numbers.

How does this filter protect my diesel fuel system?

The PG DF99173 captures very small contaminants and separates water to reduce abrasive wear on high‑precision fuel components. Its media and construction are tuned to handle the pressure and heat of modern diesel engines without collapsing or leaking.

• Removes particles down to about 4 microns to protect injectors and pumps
• Built‑in water separation reduces corrosion and microbial growth risks
• Corrosion‑resistant housing and durable seals withstand vibration and heat

Which vehicles and engines will this filter fit?

This filter is compatible with a broad range of GM diesel models from mid‑2010s through 2026, covering heavy‑duty 6.6L trucks and newer 3.0L diesel light trucks and SUVs. Always verify with your vehicle’s model year and engine code before installing.

• Fits Chevrolet Silverado 2500/3500 HD 6.6L (2017–2026) and Silverado 1500 3.0L (2020–2025)
• Fits GMC Sierra 2500/3500 HD 6.6L (2017–2026) and Sierra 1500 3.0L (2020–2024)
• Also suits Cadillac Escalade, Chevrolet Suburban, Tahoe, Yukon, Cruze and select commercial GM models listed by year and engine

What performance and build features should I expect from this replacement?

The DF99173 is built for continuous duty in demanding applications, with filtration efficiency and a robust housing that meet or exceed typical OEM expectations. It replaces several OE and aftermarket part numbers, making it a practical swap for many service parts lists.

• High‑efficiency media for fine particle capture and water mitigation
• Rugged, pressure-rated construction resists deformation under high fuel pressure
• Cross‑references common OE and aftermarket numbers for easy sourcing

How often should I replace this diesel fuel filter?

Replacement intervals depend on vehicle usage, fuel quality and operating conditions; service schedules from the vehicle manufacturer are the best guide. For trucks working in severe duty—towing, heavy loads or dusty conditions—check the filter more frequently and replace it at the first sign of contamination or water accumulation.

• Follow manufacturer service intervals as primary guidance
• Inspect after heavy towing, long off‑road use or suspect fuel fill‑ups
• Replace immediately if filter shows excessive water or particulate buildup

Who this is for: The Premium Guard PG DF99173 is aimed at owners and technicians servicing GM diesel trucks and SUVs who want a dependable, OEM‑compatible replacement filter. It’s suited for fleet maintenance, owners who tow or work in harsh environments, and anyone needing a spare that cross‑references common OE and aftermarket numbers for simpler procurement.

Note: Always confirm fitment using your vehicle’s VIN or the manufacturer’s filter lookup before purchase and installation.