Details

• Brand:

  

  

• SKU:

  ML3Z-6L266-B

• Positions: Right
• Other Names:

  Tensioner, Tensioner Timing Chain

• Description:

  This Genuine Ford ML3Z-6L266-B is the sibling-suffix timing chain tensioner variant for 21-25 F-150 applications, sized to alternate chain or guide geometry on specific engine packages within the F-150 platform. The tensioner mounts inside the front-cover compartment and applies hydraulic pressure against the timing chain through its plunger and chain guide, keeping the chain taut as it transfers rotation from the crankshaft to the camshafts on the appropriate bank. Owners replace this tensioner when a cold-start chain rattle from the front of the engine traces to a collapsed plunger that has lost its hydraulic preload, when a timing chain service includes preventive tensioner replacement, when a stretched chain forces the tensioner to its extension limit and the cam timing skips, or when a cam-correlation DTC traces to a tensioner failure. Installation requires the front timing cover to be removed, the chain to be relieved of tension, the tensioner unbolted with the plunger first held back with a service pin or retainer, and the new tensioner installed in the locked position before the retainer is released to apply tension. Confirm exact fitment by VIN before ordering since multiple variants exist.

• Applications: 3.5L.

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