K&N Heavy-Duty Oil Filter HP-2004 — 20,000 Mile Protection, Welded 1" Hex Nut, High-Flow

The K&N HP-2004 is a heavy-duty oil filter engineered to deliver extended service interval protection, high flow rates, and fast wrench-off removal for compatible trucks, SUVs and light-duty vehicles.

Built for demanding duty cycles, the HP-2004 oil filter combines a reinforced canister, pleated synthetic-blend media and a welded one-inch hex nut to simplify removal. K&N designs this filter to handle modern longer-change intervals recommended by many manufacturers while offering broad compatibility with synthetic, conventional and blended motor oils. The filter carries a 1-year limited warranty and is lab tested for capacity and structural strength.

Will this K&N filter fit my vehicle?

Check fitment against the HP-2004 part number and your vehicle’s OEM specifications. This filter covers a wide range of heavy trucks, light trucks, SUVs and older passenger cars across many makes and model years.

• Fits many Freightliner, Western Star, Dodge, Jeep, Chrysler and Ford models listed by year.
• Also compatible with select Land Rover, Volvo, Mitsubishi, International and New Holland machines.
• Confirm thread size, gasket diameter and clearance prior to purchase.
• Refer to vehicle service manual or K&N fitment guide to verify compatibility.

How does the HP-2004 protect the engine during long service intervals?

The filter uses pleated synthetic-blend filtration media designed to capture a high proportion of contaminants while maintaining oil flow. Its high dirt-holding capacity and robust construction help it resist collapse or leakage over extended mileage.

• Pleated media traps particulates to reduce engine wear.
• High-capacity design supports longer recommended service intervals.
• Laboratory-tested for burst strength and capacity to ensure reliability.
• Compatible with synthetic and conventional oils to match maintenance preferences.

What makes removal and installation easier with this oil filter?

K&N welded a one-inch hex nut to the canister so you can use a standard wrench or socket for quick removal—even on tightly installed filters. The heavy-duty canister and consistent flow rates also simplify installation and help maintain proper oil pressure after change.

• Welded 1-inch hex nut enables fast wrench-off removal.
• Uniform canister shape simplifies hand-starting and seating.
• Designed for consistent oil flow to prevent pressure drops during cold starts.
• Durable finish and construction reduce risk of damage during service.

What are the key performance and warranty details I should know?

The HP-2004 emphasizes flow rate, contaminant capacity and structural strength. K&N backs the filter with a 1-year limited warranty and performs lab testing to validate performance characteristics important for both daily driving and heavier duty use.

• High flow rates to maintain engine lubrication under load.
• Lab-tested for burst strength and contaminant capacity.
• Works with all motor oil types—synthetic, conventional, blended.
• Supported by a 1-year limited manufacturer warranty.

Who this product is for: The K&N HP-2004 suits owners and technicians who need a dependable, high-capacity spin-on oil filter for trucks, SUVs and older passenger vehicles that require a rugged canister and easy removal. It’s a practical choice for fleet maintenance, owners following extended oil-change intervals, and anyone who values quick serviceability and proven filtration performance without changing their oil type.