2011-2019 Duramax 8-Lug Wheel Bearing (KR303)

Kryptonite Wheel Bearings are engineered from the ground up to handle the punishment of lifted HD trucks, oversized tires, and heavy towing. Unlike generic replacements, these hubs are built with a distinctive tapered roller bearing arrangement to minimize hub-face deflection, delivering tighter steering response, improved braking stability, and long-lasting reliability. Overbuilt where others cut corners, these bearings deliver the confidence and precision required for heavy-duty applications.

Part Number: KR303

• Heavy-Duty Construction: Tapered roller bearing design and high-performance grease ensure smooth, maintenance-free operation under extreme loads.
• Superior Sealing: Features a massive dual-lip seal to keep water, dirt, and road salt out of the internal bearings, significantly extending service life.
• Maximum Strength: Grade 10.9 cold-formed and zinc-plated M14-1.50 lug studs provide extreme tensile strength and corrosion resistance.
• Corrosion Protection: Full E-coating protects every surface from rust, even in salted-road and harsh off-road environments.
• Stability: A larger mounting flange reduces deflection and provides better mounting stability for trucks with oversized wheels and tires.
• Reliable Electronics: Includes a heavy-duty ABS sensor engineered to maintain signal accuracy in heat, mud, and moisture.

• Lug Pattern: 8-Lug (M14-1.50 Studs)
• Axle Nut Torque: 177 lb·ft
• Spindle Bolt Torque: 133 lb·ft
• Main Caliper Bolt Torque: 221 lb·ft
• Installation: Bolt-in unit compatible with both right and left spindles. Estimated install time: 2 hours.