ECCPP Front Wheel Hub & Bearing Assembly 513121 for Buick/Cadillac Front ABS - 5-Lug, Pre-Coated Bolts

The ECCPP 513121 front wheel hub and bearing assembly is a direct-fit replacement hub (OE 513121) designed for front-axle, ABS-equipped Buick and Cadillac models to restore wheel stability and reduce noise and vibration.

This heavy-duty hub and bearing unit from ECCPP is engineered to match original equipment dimensions and mounting patterns while improving seal protection and service life. It fits a wide range of FWD vehicles and some AWD rear applications, and comes with pre-coated wheel bolts and a robust anti-contamination seal to help keep grease in and dirt out. Below you’ll find short answers to common buyer questions plus clear specifics to verify fit and performance.

What exact vehicles and positions does this ECCPP 513121 hub fit?

The assembly is intended primarily for front-axle installations on many Buick and Cadillac front-wheel-drive models and also fits select AWD rear positions on vans and crossovers. Always compare the OE number (513121) and bolt pattern before ordering.

• Front FWD fitments include: 2005–2010 Buick Allure, 1997–2005 Buick Century, 2005–2009 Buick Lacrosse, 2000–2005 Buick LeSabre, 2006–2011 Buick Lucerne.
• Additional front matches: 1997–2005 Buick Park Avenue, 1997–2004 Buick Regal, 1997–1999 Buick Riviera, 2005 Buick Terraza, 1997–2005 Cadillac DeVille.
• Cadillac DTS front fitment: 2006–2011 (excludes heavy duty suspension). Verify year and suspension type on your vehicle.

Which technical specifications and features should I verify before purchase?

Confirm core dimensions and the ABS requirement to ensure compatibility. Key physical specs and design features determine whether this assembly will install and function correctly on your car.

• OE number: 513121; flange bolt count: 5 lugs; bolt size: M10 x 1.25.
• Flange diameter: 5.80 inches; flange offset: 2.007 inches; built for ABS-equipped axles.
• Durable seals, premium bearing materials, and protective coating on wheel bolts to reduce corrosion and ease future disassembly.

How does the ECCPP assembly improve durability and reduce maintenance?

ECCPP designs this hub with quality seals and corrosion-resistant finishes to keep contaminants out and lubricant in, which reduces noise and wear. That improves service life and can lower the need for premature replacements when installed correctly.

• High-quality seal design protects bearings from water and road debris.
• Robust bearing materials and precise machining for a snug OE-style fit and minimal vibration.
• Wheel bolts have protective coating to resist rust and make removal easier during service.

Who is this for: The ECCPP 513121 wheel hub assembly is intended for DIY mechanics, independent repair shops, and vehicle owners maintaining mid-2000s Buick and Cadillac FWD models or the specified AWD rear applications. It suits anyone replacing a worn or noisy front hub, restoring ABS wheel speed signal performance, or preparing a vehicle for safe road use. Before ordering, verify the OE number, bolt pattern, ABS requirement, and the vehicle’s model year and suspension type to ensure proper fit.