Dorman 13977 Wheel Bearing Dust Cap - Front

Durable Steel Wheel Bearing Dust Cap for Select GM and Isuzu Models

The Dorman 13977 wheel bearing dust cap is engineered to protect your vehicle's wheel bearings from dirt, moisture, and debris. Designed with precision, this silver steel dust cap ensures a secure fit for various Buick, Cadillac, Chevrolet, GMC, Isuzu, Oldsmobile, and Pontiac models.

• Constructed from corrosion-resistant steel for long-lasting durability
• Silver finish complements wheel assemblies
• Inside diameter of 1.5 inches for accurate fitment
• Outer diameter measures 2.07 inches to cover bearing housing effectively
• Height of 1.164 inches for proper sealing depth
• Includes one dust cap per package

Product Details and Specifications

The Dorman 13977 wheel bearing dust cap is made from high-quality steel, providing reliable protection against contaminants that can compromise wheel bearing performance. Its silver color offers a clean, professional appearance while resisting rust and corrosion. The precise dimensions—1.5 inch inside diameter, 2.07 inch outer diameter, and 1.164 inch height—ensure compatibility with a range of driveline and axle assemblies. This dust cap is specifically designed for use on various GM and Isuzu vehicles, including popular models such as the Chevrolet Blazer, GMC Sierra, Buick LeSabre, Pontiac Firebird, and Cadillac DeVille.

Compatible Vehicles and Applications

This wheel bearing dust cap is compatible with the following makes and models:

• Buick: Century, LeSabre, Skylark
• Cadillac: Brougham, DeVille, Fleetwood, Seville
• Chevrolet: Blazer, Camaro, Caprice, C10, El Camino, Impala, Malibu, Monte Carlo, Nova, S10, Silverado
• GMC: Jimmy, K5 Blazer, Sierra, Sonoma
• Isuzu: Hombre, Pickup
• Oldsmobile: Cutlass, Cutlass Supreme, Delta 88, Omega, 98
• Pontiac: Bonneville, Catalina, Firebird, Grand Am, Grand Prix, LeMans, Parisienne, Phoenix

Common Issues Addressed by the Dust Cap

• Prevents dirt and debris from entering wheel bearing assemblies
• Protects against moisture intrusion that can cause corrosion
• Helps maintain proper lubrication within the bearing housing
• Reduces risk of premature bearing wear or failure
• Ensures secure sealing to extend driveline component life

Installation Notes and Tips

When installing the Dorman 13977 dust cap, ensure the wheel bearing surface is clean and free of debris. Gently tap the dust cap into place using a soft mallet or a suitable installation tool to avoid damage. Verify that the dust cap sits flush and securely over the bearing housing to provide an effective seal. This part is designed for direct replacement on compatible GM and Isuzu models, requiring no modifications.

Quality Assurance and Warranty

Dorman parts are manufactured to meet or exceed OEM standards, ensuring reliable performance and fitment. The 13977 wheel bearing dust cap undergoes rigorous quality control inspections to guarantee durability and corrosion resistance. While specific warranty details may vary, Dorman typically offers limited warranties covering defects in material and workmanship.