ELONN Engine Barring Socket Wrench for CAT & Mack Engines | Fits CAT 3176–3512, C9–C16 & E-7 ETEC

Overview

The ELONN Engine Barring Socket is designed to help technicians rotate heavy engine assemblies with confidence. Built to engage precisely with CAT flywheels and Mack E-7 ETEC units, this tool supports controlled rotation during servicing and reduces fatigue without compromising safety or accuracy.

Wide compatibility for in-shop versatility

Engine families covered include Caterpillar models 3176, 3196, 3200, 3208, 3300, 3400, 3406, 3500, 3508, 3512, and C-series C9 through C16. It is also compatible with Mack E-7 ETEC engines, making it a practical choice for shops handling mixed fleets. It supports both EUI and MUI configurations, expanding utility across a range of service scenarios.

Key features

• Broad applications: suitable for CAT engines across listed series and Mack E-7 ETEC units, compatible with both EUI and MUI systems.
• Efficient engine rotation: designed to mesh with each flywheel tooth for smooth, controlled turning during repairs.
• Premium-grade material: crafted from 42CrMo steel for durability, tight tolerances, and corrosion resistance.
• Precise dimensions: 8 splines, 1.725 inch diameter, and 1/2 inch square drive for a dependable fit.
• Direct replacement: matches OEM numbers J-38587-A, 9S9082, 0508477, and OTC6749 for a cost-effective option.

Practical usage scenarios

• Rotate flywheels in the shop to align timing marks or service points with controlled effort.
• Pair with standard tools via the 1/2 inch drive for steady positioning during maintenance.
• Opt for OEM-replacement compatibility to maintain professional tooling without premium pricing.
• Rely on the tool’s durability for repeated service cycles in busy workshop environments.