Wheel torque multiplier MAR-POL 7500 Nm model 57118 – gear-type lug wrench

MAR-POL wheel torque multiplier model 57118 is a gear-type lug wrench designed to deliver up to 7500 Nm of torque for loosening and tightening wheel nuts on heavy vehicles. The tool mechanically multiplies the input torque from a ratchet or breaker bar, allowing controlled application of high torque without using powered impact tools. Its compact gear housing and drive interface accept standard sockets and extensions for workshop and roadside service.

Advantages

The gear-type construction provides consistent torque multiplication and smooth operation under load, reducing the physical effort required to service large wheel fasteners. The compact housing improves accessibility around wheel arches and hub assemblies. Designed for use with conventional hand tools, the multiplier eliminates the need for large pneumatic or electric impact wrenches while maintaining repeatable mechanical advantage and torque control.

Suitable for

• Servicing truck and bus wheel nuts
• Field repairs of agricultural and construction machinery
• Workshop wheel maintenance and tire change operations
• Heavy-duty vehicle fleet maintenance where high manual torque is required

Key specifications

• Maximum output torque: 7500 Nm
• Type: gear-type torque multiplier
• Drive interface: for use with standard sockets and hand ratchets or breaker bars
• Application: manual torque multiplication for loosening and tightening wheel fasteners
• Construction: compact gear housing designed for accessibility in tight spaces

How to use

Fit an appropriate socket to the multiplier's drive and attach the input square to a compatible ratchet or breaker bar. Position the socket on the wheel nut, apply steady force to the input tool, and allow the gear mechanism to multiply the torque. Reverse the input direction to tighten. Observe safe handling practices: ensure the multiplier is properly seated on the nut and maintain control of the input tool throughout the operation.

Usage recommendations

Use the torque multiplier only with tools and sockets rated for heavy-duty use. Verify wheel nut torque with a calibrated torque wrench after final tightening when required by vehicle specifications. Do not exceed the specified maximum output torque and inspect the tool for wear or damage before use.