Melling BT128 Stock Replacement Timing Belt Idler Pulley

The Melling BT128 is a stock replacement timing belt idler pulley engineered to meet or exceed original equipment manufacturer (OEM) specifications. Sold as an individual component, this smooth steel idler pulley is a direct-fit solution for restoring proper timing belt function and keeping your engine running at its best.

Over time, timing belt idler pulleys are subject to worn bearings, metal fatigue, and material failure. Replacing the idler during any timing belt service or engine rebuild is essential to ensure proper belt routing, correct tension, and long-term reliability of the entire timing system.

Key Features:

• OEM-quality construction: Designed and built to meet or exceed original equipment specifications
• Smooth steel pulley: Durable steel construction with a smooth pulley face for quiet, reliable operation
• Reduces noise: Compensates for slack in worn or stretched timing belts to minimize belt noise
• Prolongs belt life: Proper belt guidance reduces wear and extends the service life of the timing belt
• Outside Diameter: 2.716 in. (69.0 mm)
• Inside Diameter: 0.389 in. (10.0 mm)
• Width: 1.779 in. (45.0 mm)
• Sold individually

Melling recommends replacing the timing belt idler with every timing belt installation or engine rebuild to ensure proper component installation and correct adjustment of the new timing system. The BT128 is also available as part of select Melling timing belt sets.