Ford PX MKII Ranger 2.2L 3.2L Mazda BT-50 Turbo Diesel 2011-19 Drive Belt Tensioner Pulleys

Belt tensioners are extremely important in the proper operation of the accessory belt drive system. A tensioner maintains the correct amount of tension on

the belt at all times throughout its duty cycle. It also helps protect other components such as the alternator and water pump from undue stress and premature

failure. In addition, a tensioner is a relatively inexpensive part to replace. 

So, every time you replace a multi-ribbed belt, be sure to replace the tensioner at the same time.

Furthermore, when a tensioner has reached the end of its service life we recommend that all wear parts are replaced at the same time to ensure the best

long-term solution.

THE IMPORTANCE OF CORRECT BELT TENSION

If the belt tension is too low, the belt will slip causing noise, extremely high temperatures and premature belt wear, all of which can lead to the poor

functioning of the belt-driven accessories. If the tension is too high, this will cause excessive wear to the belt-driven accessories.

1. RUST BLEED AND CRACKS

Appearance: Rust is bleeding between arm and base or dripping from the tensioner. Also, check the tensioner for cracks or damage to arm, housing and

bracket. Some damage can’t be seen unless the tensioner has been removed.

Cause: Rust bleeding or dripping is a sign of internal component wear. Most common crack damage occurs at tensioner “stops” and mounting bolts.

Solution: Replace the tensioner.

2. PULLEY BEARING WEAR

Appearance: With the engine off and the belt removed, manually rotate the pulley. If you notice noise, resistance or roughness, the problem is likely to be

pulley bearing wear.

Cause: Defective bearing and/or pulley.

Solution: Replace the complete tensioner. Do not attempt to replace a worn pulley in a used tensioner assembly but always replace the entire tensioner

assembly, as part failure will inevitably follow quickly.

3. PULLEY WEAR

Pulleys are made from plastic, nylon or steel and have either a flat or grooved surface.

Appearance: Flat surfaces should be smooth and free from chips, cracks and dents. Grooved surfaces should be free of chips, cracks, dents and embedded

debris within the grooves. The high points of the grooves should not be worn down and be of equal height. Plastic pulleys have fins in sidewalls that should

not be cracked or broken.

Cause: Belt wearing into the pulley.

Solution: Replace the complete tensioner. Do not attempt to replace a worn pulley in a used tensioner assembly but always replace the entire tensioner

assembly, as part failure will inevitably follow quickly.

Will Suit:

• All PX & PX MKII Ranger 2.2/3.2 lt models 2011 - current
• Equivalent Mazda BT-50 models
•  

Content: 1x  Drive Belt Tensioner

OEM Number: 1D0015980