Fram PH373 Extra Guard Heavy Duty Spin-On Oil Filter

The Fram PH373 Extra Guard oil filter is a heavy-duty spin-on engine oil filter engineered to deliver reliable performance for up to 10,000 miles between oil changes. Designed for medium-duty and heavy-duty trucks, this full-flow lube filter provides proven engine protection in demanding operating environments.

Key Features:

• Cellulose and glass blended media captures 95% of harmful dirt particles that can cause engine wear
• Silicone anti-drainback valve provides superior start-up protection with up to 3X hot oil resistance
• SureGrip technology features a non-slip textured surface for easier installation and removal
• 13/16"-16 thread size for secure fitment
• Compatible with both conventional and synthetic motor oils
• Made in USA with quality materials for durability and reliability

The PH373 uses a proprietary filter media blend that balances dirt-trapping efficiency with dirt-holding capacity, ensuring your engine stays protected mile after mile. The precision-molded silicone anti-drainback valve prevents dry starts by keeping oil in the filter when the engine is off. This filter is ideal for fleet vehicles, work trucks, and commercial applications where dependable filtration is essential.

Cross References: Replaces ACDelco LF503, ACDelco HP-2007, and over 80 other OEM part numbers.