Product description

The 10400031 Backing Plate is a fundamental mounting component used in Snap-On wheel balancing systems to create a flat, stable reference surface for the wheel hub. This plate is positioned behind the wheel on the balancer spindle, ensuring that the wheel sits perfectly vertical and perpendicular to the axis of rotation. Because it is the primary point of contact for the wheel's mounting face, any warping, pitting, or wear on the backing plate will result in significant measurement errors. Replacing a damaged or worn backing plate is a simple yet critical step in maintaining the high-accuracy performance of your wheel balancer and preventing phantom vibration issues.

Product highlights

• Ultra-flat surface finish ensures a precise mounting plane for all wheel types
• High-impact resistant material protects the balancer spindle from damage
• Consistent thickness prevents rotational imbalance caused by the plate itself
• Universal compatibility fits most Snap-On 28mm and 40mm spindle systems

Specs

• Manufacturer Part Number: 10400031
• Country of Manufacture: USA
• Component Type: Wheel Balancer Backing Plate
• Material: Hardened Aluminum or Steel

Direct replacement models

• Snap-On: 10400031
• Fits Models: Snap-On, Sun, and John Bean Wheel Balancers

You will receive the same product or an OEM-Equivalent that meets the highest standard of the OEM with warranty that will be a direct-fit. Manufactured with rigorous industry standards and certified in the USA with superior quality to the OEM.