The K&N Premium Oil Filter HP-2004 is presented as a high-capacity, extended-service option for many gasoline engines. It features a steel canister, synthetic-blend media, 20,000-mile service rating, 3/4-inch wrench-off hex nut, and flow-optimized internal components. How well does the media capture submicron particles, what are real-world pressure-drop numbers, and which vehicles truly benefit from the extended interval—consider fitment, oil type, and driving profile before deciding.
Key Takeaways
- High-capacity steel-canister design offers durability and up to 20,000-mile engine protection when used per recommendations.
- Pleated synthetic-blend media balances efficient contaminant capture with strong oil flow for consistent lubrication.
- 1-inch welded hex nut simplifies removal; dimensions (3.81 x 3.81 x 4.1 in) require fitment confirmation.
- Compatible with many Dodge, Chrysler, Jeep, Mitsubishi, and other models, but always cross-reference OEM numbers.
- One-year limited warranty covers defects; register or contact K&N for claims and follow installation tips.
Product Overview and Key Specifications
The K&N Premium Oil Filter HP-2004 presents itself as a high-capacity, durable option for drivers seeking extended service intervals and reliable filtration.
The K&N Premium Oil Filter HP-2004 delivers high-capacity, durable filtration for extended service intervals and dependable engine protection
It is an oil filter offering 20,000-mile engine protection, steel canister construction, and dimensions of 3.81 x 3.81 x 4.1 inches.
Weight: 1.02 pounds; thread size: 1 inch; OEM: HP-2004.
Who fits this part? Select Dodge, Chrysler, Jeep, Mitsubishi and other makes.
Practical considerations: wrench-off hex nut, synthetic oil compatibility, one-year limited warranty.
Is installation difficult? No—simple removal and replacement.
UPC: 00024844035011.
Performance and Filtration Technology
Having covered fitment, construction, and serviceability, attention now turns to how the HP-2004 performs under real-world conditions and what its filtration technology actually delivers.
The HP-2004 balances filtration efficiency with maintained oil flow: pleated synthetic-blend media captures harmful particles while supporting high flow rates, tested for capacity and burst strength.
What are the specifics? Rated for 20,000-mile protection, dimensions 3.81 x 3.81 x 4.1 inches, 1.02 lb.
Practical considerations: compatible with synthetic and conventional oils, heavy-duty steel canister, laboratory-verified performance.
Who benefits? Owners seeking durability, consistent lubrication, and extended service intervals.
Installation, Maintenance, and Warranty
While simple on the surface, installing and maintaining the K&N HP-2004 rewards careful attention to a few practical details. The one-inch welded hex nut enables easy wrench-off removal; oil drain, torque, and seal inspection are important installation tips.
A suggested maintenance schedule aligns with manufacturer guidance, typically up to 20,000 miles depending on oil type and driving conditions.
Questions answered:
- Replace filter when oil change interval met.
- Inspect seal, paper pickup, and canister for damage.
- Use recommended torque and clean mating surface.
A 1-year limited warranty covers defects; register or contact customer service for claims.
Vehicle Compatibility and Fitment Guide
After covering installation, maintenance, and warranty details, it makes sense to look next at which vehicles this HP-2004 oil filter fits and why fitment matters for performance and longevity.
Which vehicle models are supported? Examples include 2015–2020 Freightliner Cascadia, 2000–2009 Dodge Ram 2500, 2004–2008 Chrysler Pacifica, 1993–2008 Jeep Grand Cherokee, 1991–2008 Dodge Grand Caravan, plus various 1981–2020 Ford, Nissan, Land Rover models.
Supported vehicles span many makes and years — from 2015–2020 Freightliner Cascadia to 1981–2020 Ford, Nissan, and Land Rover models.
Practical considerations: 3.81 x 3.81 x 4.1 inches, 1-inch thread, steel canister.
How to confirm fitment? Cross-reference OEM part numbers and vehicle-specific guides.
Filter benefits: longer intervals, high flow, contaminant control.
Customer Ratings, Pros and Cons
Customer feedback on the K&N HP-2004 centers on reliability, filtration performance, and fitment precision, giving prospective buyers concrete data to weigh. Reviews average 4.7/5 from 1,052 ratings, with many noting filter longevity up to recommended 20,000-mile intervals and consistent oil flow, pleated media effectiveness, and solid canister build.
Customer experiences highlight easy wrench-off removal (1-inch hex), fit for specific Dodge, Jeep, Chrysler models, and compatibility with synthetic oils.
Key pros and cons:
- Pro: High flow, durable steel canister, long service intervals.
- Con: Fitment varies by model; check dimensions 3.81×4.1 in.
- Pro: Strong tested capacity, simple installation.
Frequently Asked Questions
Can This Filter Be Used With High-Mileage Engine Oil Additives?
Yes. The filter tolerates high mileage compatibility concerns, allowing use with oil additives; it maintains high flow and filtration while preserving oil additive benefits, though users should follow additive and service-interval recommendations for peak protection.
Is the Filter Magnetized to Capture Metal Particles?
No, it lacks a magnet; the response is factual and measured. Its filter efficiency relies on pleated synthetic-blend media and mechanical trapping rather than magnetic metal capture, prioritizing contaminant removal through filtration depth and high flow rates.
Does HP-2004 Require a Specific Torque When Tightened?
No specific torque specifications are listed; the installer should follow vehicle manufacturer torque specs for filter installation and hand-tighten plus recommended fraction-turn guidelines, ensuring proper seal without over-tightening to avoid damage.
Can the Welded Hex Nut Be Removed for Filter Recycling?
Yes — the welded hex nut is not meant to be removed; it’s fixed like a capstone. For proper filter recycling, users should consult local metal-recycling rules and discard the hex nut intact with the canister per guidelines.
Are There Any Known Oil Pressure Changes After Installation?
No significant oil pressure changes are typically observed after installation; testing shows normal oil pressure maintained. Any minor installation effects usually stem from improper fitment, restrictions, or oil viscosity differences rather than the filter itself.
Conclusion
The K&N Premium Oil Filter HP-2004 offers reliable extended-service filtration, rated up to 20,000 miles with a durable steel canister and synthetic-blend media for high flow and particle capture. How satisfied are buyers? Average rating: 4.7/5 from hundreds of reviews, indicating strong real-world approval. Practical considerations: wrench-off hex nut, standard spin-on size, 3.5–4.0 in height, fits many domestic vehicles. Recommended for drivers seeking longer intervals and robust construction.
