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K&N Oil Filter KN-138
The K&N Oil Filter KN-138 is engineered for racers, engine builders, and everyday motorcycle or ATV riders who want premium filtration and reliable engine protection. Built for performance, it provides outstanding oil flow while helping keep harmful contaminants out of your engine.
Using advanced synthetic filter media, the KN-138 traps up to 99% of harmful particles without compromising oil flow rates. It is compatible with conventional, synthetic blend, and full synthetic oils, making it a versatile choice for routine maintenance or high-performance use.
The signature K&N wrench-off design features a 17mm hex nut on the end for quick installation and removal. The cross-drilled nut also makes safety wire installation simple for race applications. A heavy-duty canister, reinforced base plate, double-rolled seal, and pre-lubed gasket help ensure durability and a dependable leak-resistant seal.
Features
- Designed for motorcycles and ATVs
- Compatible with conventional, synthetic blend, and full synthetic oils
- High-flow synthetic media for strong filtration and oil circulation
- Traps up to 99% of harmful contaminants
- 17mm wrench-off nut for easy install and removal
- Cross-drilled nut allows quick safety wire installation
- Heavy-duty canister and base plate with leak-resistant seal
- Pressure relief valve and anti-drain back valve where applicable