Throw those Plastic Timing Chain Tensioners in the trash. These are Brand New OEM Ford Upgraded Iron Primary Timing Chain Tensioners. These Tensioners feature a Fixed Ratchet System that never allows the chain to loosen. This can be an extreme benefit if there is ever a loss of oil pressure.
Fits all 4.6L / 5.4L Engines
Upgraded Iron Tensioners fit all 4.6L / 5.4L Engines. It uses a fixed ratchet system that never allows the chains to loosen.