Set421 HM516449A HM516410 NTN BOWER Tapered Wheel Bearing

Premium NTN BOWER Tapered Roller Bearing for Heavy-Duty Trucks

Set421 Technical Specifications - 82.55mm Bore x 133.35mm OD

• Bore Diameter: 82.55 mm
• Outside Diameter: 133.35 mm
• Width: 39.688 mm

NTN BOWER Cone and Cup Tapered Roller Bearing Set421, Set 421, Set-421 HM516449A, HM516410

The Set421 wheel bearing is a high-performance tapered roller bearing engineered specifically for heavy-duty truck and commercial vehicle applications. This premium bearing set from NTN BOWER delivers exceptional durability, reliability, and load capacity for demanding fleet operations.

• Direct Replacement for Part Numbers: Set421, Set 421, Set-421, HM516449A, HM516410
• High quality OEM equivalent replacement part
• Precision-manufactured with tight tolerances for smooth operation and extended service life
• Advanced metallurgy provides superior heat dissipation and reduces operating temperatures
• Corrosion-resistant premium finish protects against rust and environmental damage
• Engineered to handle extreme axle loads in heavy-duty applications
• Cone and cup precision-matched for optimal performance
• Manufactured with rigorous quality control testing
• Manufactured with High Quality Materials
• Trusted by fleet managers and professional mechanics nationwide

Applications

• Heavy-duty truck wheel ends and axle assemblies (Class 7-8)
• Trailer axles and hub configurations
• Vocational trucks and severe-duty applications
• Highway and long-haul operations
• Compatible with Mack, Freightliner, Peterbilt, Kenworth, International, Volvo, and Western Star

Why Choose NTN BOWER?

NTN BOWER is a globally recognized leader in bearing technology with over 100 years of engineering excellence. Their bearings are manufactured under strict quality control standards and feature advanced heat treatment processes that deliver 2-3 times longer service life compared to economy alternatives.

Expert Technical Advice

For help finding the right part for your Truck call us at: +1 (407) 861-0328

Shipping Policy

Once you order your item we may take 1-2 business days to process it. Once your order is processed, we will ship it out. You will receive an email with your tracking number. The whole length of time this process can take is determined at checkout depending on what carrier you choose(USPS, UPS)

Please note that original shipping fees are non-refundable, and return shipping costs are the customer's responsibility.

Refund Policy

Our Products have a 30-day return policy, for more information visit our Refund Policy