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🔩 Keep your engine running smoother, longer — because your truck deserves the best!
The K&N Premium Oil Filter HP-4003 delivers up to 20,000 miles of superior engine protection with high flow rates and pleated synthetic-blend media that traps harmful contaminants. Featuring a durable steel canister and a convenient wrench-off nut, it’s designed for easy installation and removal. Compatible with a wide range of RAM, Dodge, Sterling, and other truck models, this filter supports all oil types and is backed by a 1-year limited warranty, making it a trusted choice for professional-grade vehicle maintenance.
| ASIN | B000C4086U |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #16,710 in Automotive ( See Top 100 in Automotive ) #238 in Automotive Replacement Oil Filters |
| Brand | K&N |
| Brand Name | K&N |
| Compatible with Vehicle Type | Truck |
| Customer Reviews | 4.7 out of 5 stars 978 Reviews |
| Global Trade Identification Number | 00024844035127 |
| Included Components | OIL FILTER; AUTOMOTIVE |
| Item Dimensions | 3.81 x 3.81 x 7.23 inches |
| Item Type Name | OIL FILTER; AUTOMOTIVE |
| Item Weight | 1 Pounds |
| Item dimensions L x W x H | 3.81 x 3.81 x 7.23 inches |
| Manufacturer | K&N Filters |
| Manufacturer Part Number | HP-4003 |
| Manufacturer Warranty Description | LIMITED WARRANTY |
| Material | steel |
| Material Type | steel |
| Model Number | HP-4003 |
| Number of Items | 1 |
| OEM Equivalent Part Number | HP-4003 |
| Outside Diameter | 3.66 Inches |
| Part Interchange Info | Replacement |
| Product Grade | Performance Part |
| Thread Size | M16 x 1.5 |
| UPC | 024844035127 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Truck |
P**N
True K&N filter.
Same quality 🔧 on filter at half the cost. 👍 20K filter with full synthetic oil.
A**S
Easy to install and uninstall
Quality filter
B**R
perfect fit
good quality at a fare price
J**E
Great filter
Great oil filter. Very easy to change with the nut on the bottom of the filter. I've used these for many years.
U**R
product works great!
perfect fit on my 2006 dodge ram 2500 with 5.9L cummins. even has a nut on the bottom for easier installation and removal. great!
K**R
Best for my situation and area to replace
Would be five EXCEPT for the nut on the end isn't deep enough to make it easier to remove with metric socket. 1yr on 2004 ram 3500, w diesel hard area to get too, partially spun the nut with correct socket. Had to tap a 15/16th on spun nut to get it off.
V**E
Love this filter
This filter is fantastic hands down I dare you do your research contents on the inside or what matters I'll never buy another brand of filter for my diesel or my hemi. Miami 2016 ram 1500 is right now at 409,000 mi My diesel 6.7 Cummins is sitting at 219,000 mi this is all these engines have ever had on them this is all they were ever have. Well it'll be k&n oil filters and then it will be mobile one oil that's where I go and that's where I'm staying both quality products.
P**K
Great filter - love the 1" nut on bottom for easy removal
K&N makes great filters. We all know that, but the best feature is the integrated 1" hex on the bottom of the filter that makes removal a snap. It is so easy to put a 1" socket on a long extension and remove, then install this filter. Best design of any filter. Nice job, K&N!
Trustpilot
2 months ago
2 weeks ago