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K&N 55-1001 Covered Assembly

Performance Products > Covered Assembly
Rating Star 1 Rating Star 2 Rating Star 3 Rating Star 4 Rating Star 5   5.0 out of 5 stars   1 Customer Review
  • Designed to increase horsepower and acceleration
  • Specifically designed for off-road racing applications
  • Washable and reusable air filter
  • Designed for the UMP Air Box
  • One year limited warranty
The K&N Replacement Air Filters for the UMP Off-Road Air Box: part 55-1000 has a 3 inch outlet and part 55-1001 has a 4 inch outlet. These air filters were designed to achieve high, virtually unrestricted airflow while maintaining filtration levels critical to your engine.


Available Information

Product Specifications

Air Filter ColorRed
Air Filter MaterialCotton Gauze
Air Filter Height12.5 in (318 mm)
Air Filter Inside Diameter3.75 in (95 mm)
Air Filter ShapeRound Straight
Inlet Diameter4 in (102 mm)
Mounting Hardware IncludedYes
Neck Flange4 in (102 mm)
Overall Height12.5 in (318 mm)
Replacement FilterNone
Top MaterialBlack Powder Coated
Top StyleMetal
Product StyleCustom Assemblies
Weight2.8 lb (1.2 kg)
Product Box Height8.5 in (216 mm)
Product Box Length14.13 in (359 mm)
Product Box Width10.38 in (264 mm)

K&N 55-1001 Covered Assembly Product Reviews

Monday, February 26, 2018 - Part 55-1001
Our K&N filters are a great product that help keep us on the racecourse I couldn't be happier with the quality and performance of the product Keep up the good work guys.

Jeremy Ealand
Johnson Valley, California