Moog 512449 Wheel Bearing and Hub Assembly - Rear

Overview of Moog 512449 Wheel Bearing and Hub Assembly

The Moog 512449 wheel bearing and hub assembly is designed specifically for Mazda CX-9 models, providing reliable driveline performance. This component ensures proper wheel alignment and smooth rotation, essential for vehicle safety and handling.

• Compatible with Mazda CX-9
• 28 spline quantity for secure axle fitment
• 5 wheel studs with 4 flange bolt holes
• Wheel pilot diameter of 66.8 mm and brake pilot diameter of 72 mm
• Hub pilot diameter measures 77.9 mm
• Offset trapezoid flange shape with 63 mm flange offset
• Flange diameter of 140 mm and bolt circle diameter of 114.3 mm
• Does not include anti-lock brake sensor

Technical Specifications and Features

The Moog 512449 wheel bearing and hub assembly features a 28-spline design that ensures a precise fit with the axle shaft of the Mazda CX-9. The assembly includes five wheel studs and four flange bolt holes, providing secure mounting to the vehicle’s hub. The wheel pilot diameter of 66.8 mm and brake pilot diameter of 72 mm are engineered to maintain proper alignment of the wheel and brake components. The hub pilot diameter of 77.9 mm supports the hub’s centering on the axle flange.

The flange has an offset trapezoid shape with a 63 mm flange offset, which is critical for maintaining correct wheel positioning and clearance. The flange diameter measures 140 mm, and the bolt circle diameter is 114.3 mm, matching the Mazda CX-9’s factory specifications. This assembly does not include an anti-lock brake sensor, so it is intended for vehicles where the sensor is integrated separately.

Applications and Problem Solving

• Replaces worn or damaged wheel bearing and hub assemblies on Mazda CX-9
• Eliminates wheel noise caused by bearing wear
• Restores proper wheel alignment and reduces vibration
• Addresses issues with uneven tire wear due to hub misalignment
• Improves overall driveline stability and safety

Installation Notes and Tips

When installing the Moog 512449 wheel bearing and hub assembly on a Mazda CX-9, ensure the vehicle is securely lifted and supported. Clean the mounting surface thoroughly before installation to prevent contamination. Torque the flange bolts to the manufacturer’s specifications to avoid premature wear. Since this assembly does not include an anti-lock brake sensor, verify the sensor’s condition and connection separately. It is recommended to inspect related components such as wheel studs and brake parts during installation.

Quality Assurance and Warranty

Moog wheel bearing and hub assemblies are manufactured to meet or exceed OEM standards for fit, form, and function. The 512449 part number undergoes rigorous testing to ensure durability and performance under normal driving conditions. Moog typically offers a limited warranty covering defects in materials and workmanship, providing confidence in the product’s reliability for Mazda CX-9 owners.