Details

• Brand:

  

  

• SKU:

  ML3Z-8620-A

• Other Names:

  AC Belt, Alternator Belt, V Belt, jk5351

• Description:

  This is the genuine Ford V-belt that drives the air conditioning compressor on 21-23 Expedition and Lincoln Navigator with the 3.5L EcoBoost, single alternator configuration including units with power converter or inverter equipment. The belt transfers crankshaft rotation to the compressor clutch and is critical to climate control function. A worn or glazed belt typically produces a chirping noise during AC engagement, intermittent cooling, or visible cracking and chunking along the rib face. This belt is engineered to the Ford length and rib profile for this specific accessory routing and is not a generic substitution. Inspect the tensioner and idler pulley while the belt is off; if either spins with roughness, has lateral play, or shows seal weep, replace it during the same service since access is already open. Confirm correct belt routing against the underhood placard or the Ford service manual diagram before tensioning. After installation, run the engine and cycle the compressor several times while inspecting the belt to confirm proper tracking and absence of edge fray. Use only genuine Ford or equivalent OE-spec belts on this engine family; non-OEM belts of incorrect length frequently cause premature tensioner failure and accessory pulley wear.

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