Miller Special Tools 8514 Chain Tensioner Pins

The Miller Special Tools 8514 Chain Tensioner Pins are essential specialty tools designed for timing chain service on Chrysler, Dodge, and Jeep engines. These precision pins prevent hydraulic chain tensioners from extending during timing chain removal and installation, ensuring proper positioning and preventing damage to critical engine components.

Key Features:

• Prevents primary and secondary chain hydraulic tensioners from extending during service
• Holds tensioner rack and piston in retracted position during timing chain work
• Essential for proper timing chain installation and tensioner reset procedures
• Precision-engineered to OEM specifications for exact fit
• Hand tool use only - power tools not recommended

Applications:

• Chrysler/Dodge/Jeep 4.7L V8 engines (1999-current)
• Chrysler 3.6L Pentastar V6 engines (when used as part of 8514A kit)
• Compatible with Dodge Ram, Dakota, Durango, Jeep Commander, Grand Cherokee, and other 4.7L applications

These tensioner pins insert through the tensioner body to secure the internal ratchet mechanism, allowing safe removal and installation of timing chains without risk of the tensioner extending prematurely. The tool is critical for preventing valve-to-piston contact and ensuring proper timing chain tension upon reassembly.