AHL 113 Oil Filter for Honda TRX400EX 397 1999-2008 (Pack of 3) High performance design for outstanding filtration Size:O.D. 52mm & Height 37mm Replace Parts Number KN113 & HF113 Ideal for high-end synthetic motor oil and allow high oil flow rates Quality Assurance!If you are not satisfied with our products,we accept all of the return,replacement or refund requests