Details

• Brand:

  

  

• SKU:

  BT-127

• Positions: Upper
• Other Names:

  Motorcraft™ Accessory Drive Belt Tensioner Assembly, Motorcraft™ Serpentine Tensioner, Motorcraft™ Tensioner, Pulley Assembly Tension

• Description:

  This genuine Ford Motorcraft accessory drive belt tensioner (part BT-127) keeps the serpentine accessory belt under correct, constant tension on the 5.0L V8 (Coyote) engine, using a spring-loaded arm and pulley so the belt can drive the alternator, water pump, power steering, and air conditioning compressor without slipping. It fits 2014-2023 Ford F-150 trucks equipped with the 5.0L V8. Owners looking for this tensioner are usually tracing a belt chirp or squeal, a rattle or knock from the front of the engine, a visibly shaking or fluttering belt, or a pulley whose bearing is rough, noisy, or seized. A weakened tensioner spring reduces belt grip and can cause intermittent charging faults, accessory whine, or a thrown belt that leaves the truck without power steering or cooling. Replace it with the engine cold and the belt off, confirm the pulley turns freely and the arm returns crisply under spring load, and route the new or existing belt precisely to the underhood diagram before releasing the arm. Inspect the drive belt and idler pulleys at the same time and replace the belt if it shows glazing or cracks. As a genuine Ford component it provides the exact spring tension, pulley alignment, and bearing life Ford specified for the 5.0L F-150 accessory drive. Backed by the Ford and Motorcraft parts warranty.

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