Product description

This heavy-duty mechanical spring is used in the tension and return mechanisms of Ammco and Ben Pearson automotive lifts. It provides the constant force necessary to return safety latches or other moving parts to their default resting position after they have been actuated. Made from high-quality spring steel, it is designed to maintain its original length and tension through thousands of expansion and contraction cycles. A weak or broken return spring can lead to safety locks failing to engage or carriages sticking during their descent. Replacing this spring is a simple maintenance task that ensures the lift's mechanical systems continue to operate with the reliability your shop demands.

Product highlights

• Constant Tension: Engineered to provide a predictable and steady return force for various lift mechanical systems.
• Resilient Material: Fabricated from premium spring steel that resists permanent deformation even under heavy tension.
• Operational Safety: Ensures safety latches and other moving parts return to their secure positions automatically.
• Standard Fit: Matches the 4"B40139 OEM specification for a quick and accurate replacement on compatible lift models.

Specs

• OEM Part Number: 4"B40139
• Material: Spring Steel
• Application: Tension / Return Mechanism
• Component Type: Mechanical Safety Spring
• System Compatibility: 2-Post Surface Mount Lifts
• OEM Reference: 4"B40139
• SVI Part Number: BH-7105-20
• Country of Manufacture: USA

Direct replacement models

• Ammco / Ben Pearson: B40139
• SVI International: BH-7105-20
• Fits Models: Used extensively in various Ammco and Ben Pearson 2-post lift models requiring this specific component.

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.