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K&N HP-4003 oil filter provides engine protection for Dodge Ram 2500 and 3500 trucks with 5.9L and 6.7L Cummins diesel engines from 1989 to 2024. This spin-on filter uses pleated synthetic-blend media to trap contaminants while maintaining high oil flow rates. The heavy-duty canister and wrench-off design ensure durability and simple service.
Key Features
Fitment
| Years | Make | Model | Application |
|---|---|---|---|
| 1989-1993 | Dodge | D250 | Verify engine and application notes |
| 1989-1993 | Dodge | D350 | Verify engine and application notes |
| 1994-2010 | Dodge | Ram 2500 | Laramie, SLT, Sport, ST, TRX, TRX4 |
| 1994-2010 | Dodge | Ram 3500 | Laramie, SLT, Sport, ST, SXT |
| 1989-1993 | Dodge | W250 | Verify engine and application notes |
| 1989-1993 | Dodge | W350 | Verify engine and application notes |
| 2011-2024 | Ram | 2500 | Big Horn, Laramie, Laramie Limited, Laramie Longhorn, Limited, Limited Longhorn, Lone Star, Outdoorsman, additional manufacturer-listed applications |
| 2011-2024 | Ram | 3500 | Big Horn, Laramie, Laramie Longhorn, Limited, Limited Longhorn, Lone Star, SLT, Special Service, additional manufacturer-listed applications |
Specifications
| Brand | K&N Engineering |
|---|---|
| Manufacturer Part Number | HP-4003 |
| Product Type | Oil Filters |
| Fitment Type | Vehicle Specific |
| Condition | New |
What's Included
One new K&N oil filters identified by manufacturer part number HP-4003. Hardware, adapters, clamps, hoses, filters, and service supplies are included only when stated for this exact product.
About K&N Engineering
K&N develops reusable air filtration, intake, oil filtration, fuel filtration, and related performance products for vehicle-specific and dimensional applications.
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Frequently Asked Questions
How do I confirm K&N HP-4003 fits my vehicle?
Match the year, make, and model in the fitment table, then confirm the engine, factory housing, sensor layout, emissions notes, and any application restrictions stated for this exact part.
Can K&N HP-4003 be used with synthetic oil?
Use the oil types and service interval approved by the vehicle manufacturer. Confirm thread, gasket, bypass-valve, and anti-drainback specifications before installation.
What should be checked after installing K&N HP-4003?
Verify seals, clamps, fasteners, hoses, sensors, wiring, and surrounding clearance as applicable. Check for leaks or contact, then follow the manufacturer service and reinspection schedule.
Installation Instructions
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