ELONN barring socket for CAT fit improves engine rotation during maintenance
ELONN 8-spline barring socket with precise engagement for reliable service
ELONN 1/2 inch drive tool simplifies installation during engine servicing
ELONN 42CrMo steel construction delivers durable performance in tough shops
ELONN OEM-replacement barring socket offers cost-effective reliability for CAT and Mack engines

ELONN

ELONN Engine Barring Socket for CAT & Mack Engines - 8-Spline, 1/2 in Drive, 42CrMo

High-performance tools and home improvement made for confident daily results

$29.02

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Why customers choose TaskHolt Tools

Overview

The ELONN Engine Barring Socket is a purpose-built tool designed to help technicians rotate flywheels on a broad range of Caterpillar (CAT) and Mack engines. It supports CAT models across the 3176, 3196, 3200, 3208, 3300, 3400, 3406, 3500, 3508, and 3512 series, as well as C9, C10, C12, C13, C15, and C16 engines. It also pairs with Mack E-7 and ETEC configurations, making it suitable for both EUI and MUI systems. This versatility makes it a practical addition to shop inventories and field service kits.

Durable, precise construction

Crafted from high-grade 42CrMo steel, this barring socket combines durability with reliable tolerances. It features an eight-spline engagement, a 1.725" diameter (43.815 mm), and a 1/2" drive. The precise dimensions help ensure a tight, consistent fit on compatible flywheels, supporting smoother rotation during service tasks.

Direct OEM replacement

Designed as a cost-effective alternative, it directly replaces OEM numbers J-38587-A, Caterpillar 9S9082, 0508477, and OTC6749. This alignment with established references helps simplify sourcing and maintenance planning without sacrificing quality or reliability.

How it helps in real-world service

When mounted, the tool engages with every flywheel tooth, enabling controlled engine rotation during maintenance and repairs. Technicians may experience easier positioning for access to internal components, more consistent crank movement, and reduced manual effort during repetitive tasks.

Key use cases

  • Engine servicing on CAT and Mack models listed above
  • Rotating the flywheel to align timing marks or access critical components
  • Light to moderate maintenance tasks requiring controlled crankshaft movement

What you get

  • ELONN Engine Barring Socket with 1/2" drive
  • Eight-spline engagement for broad compatibility
  • Durable 42CrMo steel construction with corrosion resistance
  • Direct OEM replacement compatibility for streamlined sourcing

FAQ

Q: Which engines are compatible with the ELONN Engine Barring Socket?

A: CAT engines (3176–3512) and C9–C16, plus Mack E-7 ETEC, for both EUI and MUI systems.

Q: What are the key benefits of using this tool during service?

A: Smooth engine rotation, durable 42CrMo steel, and a direct OEM replacement for listed references.

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