Details

• Brand:

  

  

• SKU:

  K2GZ-6A228-C

• Other Names:

  Belt Tensioner, Serpentine Tensioner, Pulley Assembly Tension, BT164

• Description:

  This is a genuine Ford accessory drive belt tensioner assembly carrying the catalog number K2GZ-6A228-C, engineered for the 2.3 liter EcoBoost engine used in models such as the Ford Bronco, Explorer, and Ranger from roughly 2019 onward. The tensioner maintains constant, correct tension on the serpentine accessory drive belt that turns the alternator, water pump, and other engine-driven accessories. A spring-loaded arm and pulley take up slack and damp belt vibration so the belt grips its pulleys without slipping, chirping, or flapping. Over time the internal spring weakens and the pivot or pulley bearing wears, which lets the belt slip and squeal, glaze, or throw off charging and cooling performance. Drivers commonly seek this part when they hear a chirp or squeal on startup, notice belt wear or a wobbling tensioner pulley, feel a rough or fluttering belt, or trace a battery-charging or overheating concern to a loose belt. A worn tensioner can also let the belt jump a rib and shred. This Ford component arrives built to the original engineering specification with the correct spring rate, arm geometry, and pulley, restoring proper belt tracking and tension. When installing, inspect the serpentine belt and idler pulleys and renew the belt if it is glazed or cracked, route the belt exactly per the underhood diagram, and confirm the tensioner moves freely through its travel. Verify engine application against the catalog before fitting, since related tensioners are not interchangeable.

• Replaces:

  K2GZ6A228A

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