K&N 25-4250

Filter Wraps > Air Filter Foam Wrap
List Price: $14.55
Your Price: USD $11.99

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The K&N Airforce Pre-Cleaner is a specially designed foam filter wrap made to extend the service interval of your K&N air filter when used in very dusty conditions. The Airforce Pre-Cleaner is designed to be cleaned with K&N Cleaner or soap & water. Red colored Airforce pre-cleaners air oiled with K&N air filter oil after they are cleaned. They are made from large, open cell foam. Gray colored Airforce pre-cleaners do not use oil. They have smaller foam cells.

[More Information on AirForce Foam Wraps]
  • Extends service interval of your filter in very dusty conditions
  • Large open cell foam construction stops 90% of dirt with very low air restriction
  • Cleanable with K&N Filter Cleaner or soap and water
  • This product wraps your air filter with an additional pre-filter

Product Specifications

Air Filter ShapeOval
Closed TopNo
Height1.5 in (38 mm)
Inside Length4.5 in (114 mm)
Inside Width3.25 in (83 mm)
Material UsedFoam
Package Contents1 Airforce Pre-Cleaner Wrap
Package Quantity1
Product Box Height3.25 in (83 mm)
Product Box Length7.25 in (184 mm)
Product Box Width6 in (152 mm)
Product StyleFilter Wrap - Oval Straight
Weight0.1 lb (0 kg)
Wrap TypeAirforce Pre-Cleaner

Customer Feedback

Be the first to review part 25-4250
Exactly what I needed. Just wish you made air filters for my Stihl chainsaws too.

Ron Hull
Great product. Fits my Stihl 044 magnum perfectly. Needed more intake as the cylinder was milled .030 and the ports were expanded and polished. This is a 20 year old saw and it screams.

Stratton Poindexter
Redmond, Oregon