MPA Electrical WH512281 Wheel Bearing and Hub Assembly - Rear

Reliable Wheel Bearing and Hub Assembly for Toyota Sienna

The MPA Electrical WH512281 wheel bearing and hub assembly is designed specifically for Toyota Sienna models, providing a precise fit and durable performance. Engineered with quality steel construction and essential features, this new assembly ensures smooth driveline operation and vehicle safety.

• Compatible with Toyota Sienna vehicles
• Steel material for strength and durability
• 26 spline quantity for secure drivetrain connection
• Includes trapezoid-shaped flange with 4 bolt holes
• Flange diameter of 5.98 inches and offset of 2.715 inches
• Includes gasket or seal for proper sealing
• 5 wheel studs sized M12 x 1.5 for reliable wheel mounting
• Hub pilot diameter of 3.3 inches for accurate alignment
• New product condition ensuring long service life

Product Details and Specifications

The WH512281 wheel bearing and hub assembly from MPA Electrical is constructed from steel to withstand the rigors of daily driving and maintain structural integrity. It features a 26 spline count, which is critical for proper engagement with the axle shaft. The trapezoid flange shape includes 4 bolt holes and a flange diameter of 5.98 inches, with an offset of 2.715 inches to match the original equipment specifications. This assembly comes with a gasket or seal to prevent contamination and maintain lubrication, although it is not greaseable. The hub pilot diameter measures 3.3 inches, ensuring precise fitment on the Toyota Sienna hub. Five M12 x 1.5 wheel studs provide secure wheel attachment. This part does not include an anti-lock brake sensor or wiring harness.

Common Applications and Problem Resolution

• Replacement for worn or damaged wheel bearing and hub assemblies on Toyota Sienna
• Eliminates wheel noise caused by bearing wear
• Resolves wheel vibration and steering instability issues
• Addresses wheel hub looseness or play
• Prevents premature tire wear due to hub misalignment

Installation Notes and Tips

Ensure the vehicle is securely lifted and supported before beginning installation. Clean the mounting surface thoroughly to remove any debris or corrosion. Verify the spline count and flange specifications match the original part. Use proper torque specifications for flange bolts and wheel studs to avoid damage. Since this assembly is not greaseable, do not attempt to add grease. Confirm the absence of an anti-lock brake sensor before installation to avoid compatibility issues.

Quality Assurance and Warranty

MPA Electrical manufactures the WH512281 wheel bearing and hub assembly to meet OEM standards for fit and function. This new assembly undergoes quality inspections to ensure durability and performance. While specific warranty details are not provided, MPA Electrical products typically come with manufacturer-backed coverage against defects in materials and workmanship.