Tensioner - Timing Chain Dodge 3.9L V6

The CLOYES Timing Chain Tensioner for Dodge 3.9L V6 (part number 9-5387) is a precision engine component designed to maintain proper timing chain tension in Mopar V6 engines. This OEM-specification tensioner combines steel and plastic construction with cadmium plating and natural finish, engineered to keep the timing chain at optimal pressure throughout the engine's operating range.

Timing chain tensioners are critical to maintaining accurate valve timing and preventing chain slap, which can cause severe internal engine damage if left uncorrected. The CLOYES 9-5387 uses a dual-material construction that balances rigidity where strength is needed with damping properties to absorb vibration. Proper tensioner function extends timing chain life and ensures consistent ignition timing, fuel efficiency, and emissions control across all engine speeds. The cadmium-plated steel components provide corrosion resistance in engine bay environments.

This tensioner is essential for technicians rebuilding or servicing Dodge vehicles equipped with the 3.9L V6, including Dakota, Durango, and Ram models from the 1990s through 2000s. Replacement is recommended during timing chain service, as worn tensioners lose hydraulic pressure and allow the chain to slacken—a condition that generates audible chain rattle on cold starts and can progress to timing failure. The compact design (7.65 x 2.05 x 7.65 inches, 1.33 lbs) fits easily in service kits alongside new chains and sprockets.

CLOYES is the OEM timing system supplier for major automotive manufacturers and holds the market standard for replacement timing components. Selecting an OEM-specification part like the 9-5387 ensures compatibility with original engine specifications and eliminates guesswork during reassembly. This is a consumable maintenance component; purchasing during a planned timing service prevents the risk of catastrophic engine damage from chain failure.