Caterpillar (CAT)-style premium aftermarket heavy-duty penetration bucket tooth for the J450/J460 series. Part reference 138-6451. Penetrating profile for loosening and excavating compacted material. Retention options: J450 pin 6Y2527 with retainer 8E6359; J460 pin 8E0468 with retainer 8E8469. Match the installed adapter bore and retention version. PETRAX premium aftermarket range for major brands including CAT, Komatsu, Volvo, Hitachi, John Deere, JCB, Case, New Holland, Hyundai, Doosan/Develon, Bobcat, Kubota, Takeuchi and Sany. This item fits only the specified system and matching mounting dimensions.