K&N HP-4003

Oil Filters > Oil Filter
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   6 Customer Reviews
List Price: $17.27
Your Price: USD $14.99

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Originally developed for demanding race applications, K&N's Premium Wrench-Off Oil Filter has become a favorite among consumers for its durability and easy removal. Most of our automotive and marine oil filters come with a 1” nut welded to the top of the canister so they can be easily wrenched-off with a standard tool. To satisfy the demands of racers, our oil filter has many features over and above the requirements of most vehicles. We use thicker canister walls for extra strength and durability which reduces the risk of damage from loose rocks and debris. The drilled hole on the nut provides for safety wire attachment. Our oil filters also use a resin impregnated cellulose filter media. This allows for higher flow rates while providing outstanding filtration.

[More Information on K&N Oil Filters]
  • O/E replacement oil filters for most cars, trucks, SUV's, motorcycles, & ATV's
  • Resin-impregnated filter media traps 99% of harmful contaminants
  • 1 In. exposed nut designed for easy oil filter removal
  • Heavy duty construction for extreme conditions
  • Anti-drainback valve (where applicable) eliminates dry starts, prevents oil from draining back into crankcase during engine shutdown

Product Specifications

Anti Drain Back ValveNo
Bypass ValveNo
Filter MaterialHigh Flow Premium Media
Gasket MaterialNitrile Rubber
Height7.188 in (183 mm)
Outside Diameter3.656 in (93 mm)
Product Box Height7.7 in (196 mm)
Product Box Length3.9 in (99 mm)
Product Box Width3.8 in (97 mm)
Product StyleOil Filters
PSI Relief ValveNone
Removal NutYes
Removal Nut Size1 inch
Thread Specification1 In - 16UN-2B
Weight1.5 lb (0.7 kg)

Product Reviews

Review part HP-4003
Wednesday, October 14, 2015 - Part HP-4003
Great filters!

Francis Ferris
Miami, FL
Monday, April 20, 2015 - Part HP-4003
The HP-4003 high flow filter in diesel application is a superior filter to other filters because of superior oil flow compared to these other filters.In my opinion you do not want to use a reusable filter in diesel applications. The HP-4003 filter is one step below a reuseable filter in high flow application.

Alfred Feneck
Homer, Louisiana
Friday, March 27, 2015 - Part HP-4003
Great filter. Easy removal with the nut on the bottom.

Frank Ferris
United States
Friday, January 23, 2015 - Part HP-4003
Haven't installed it, so can't rate the filter. But your service was great. Very punctual and correct.

Raymond Menard, III
Carlsbad, California
Thursday, March 27, 2014 - Part HP-4003
I love the easy on and off of this filter since my filter is in a tight space on my 2011Ram 2500 6.7 ...... I have the air filter as well .....thx K&N

Marty B
Zebulon, North Carolina
Monday, November 11, 2013 - Part HP-4003
Best filters on the market, nothing else even comes close.

John feneck
Homer, Louisiana