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USD 139.99
Part #: KNRC-5178

K&N Replacement Filter Element Part# RC-5178

Vehicle Fitment:
Flange: 3.688" | B: 10.25" x 7.188 | T: 9" x 5.375" | L: 7.875"
Part #: KNRC-5178
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K&N's Universal Air Filters are designed and manufactured for a wide variety of applications including racing vehicles, radio-controlled cars, generators, snowmobiles, tractors, and other applications. Regardless of the angle or offset diameter of the air intake, there is probably a K&N Universal air filter for your equipment. This universal air filter has a rigid flange for a clamp-on hose connection. K&N universal air filters are washable and reusable.

Part RC-5178 Product Specifications:
Product Style: Unique Air Filters
Air Filter Shape: Oval Straight
Filter Material: Cotton Gauze
Flanges: 1
Height: 7.875 in (200 mm)
Base Outside Length: 10.25 in (260 mm)
Base Outside Width: 7.188 in (183 mm)
Filter Re-Oiling Amount: 7.57 oz (224 ml)
Flange Inside Diameter: 3.688 in (94 mm)
Flange Length: 1 in (25 mm)
Flange Offset: 1.5 in (38 mm)
Flange Outside Diameter: 4 in (102 mm)
Flange Type: Offset
Top Material/Finish: Black Powder Coated
Top Outside Length: 9 in (229 mm)
Top Outside Width: 5.375 in (137 mm)
Top Style: Metal
Weight: 4.2 lb (1.9 kg)
Product Box Length: 10.38 in (264 mm)
Product Box Width: 10.38 in (264 mm)
Product Box Height: 7.75 in (197 mm)


  • MFG. Number RC-5178
  • Manufacturer Name K&N Engineering
  • Shipping Weight 7.00 lb.
  • Shipping Length 11 in.
  • Shipping Width 8 in.
  • Shipping Height 11 in.
  • Fuel Type Diesel / Gas
  • Bottom 10.25" x 7.188"
  • Filter Media Oiled
  • Filter Type Washable & Reusable
  • Flange 3.688"
  • Length 7.875"
  • Shape Oval
  • Top 9" x 5.375"
  • Warranty Info 1 Year Limited
  • Prop 65 Prop 65 WarningWARNING: Cancer & Reproductive Harm -
  • Internal L1R2


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