Replacement maintenance kit for compatible Yamaha Big Bear YFM350, Timberwolf YFB250, Moto-4 and Kodiak YFM400 ATV applications.
- Includes one foam air filter with seal, one HF142 oil filter, one 1/4-inch inline fuel filter and one spark plug.
- Air-filter reference: 1YW-14451-00-00 / YA-2597.
- Oil-filter references: 1UY-13440-01, HF142 and KN142.
- Foam air filter approximately 160 mm high × 95 mm outside diameter.
- Applications vary by model and year within the listed 1987–2000 families. Match original filter references, dimensions and spark-plug specification before ordering.
