Belt Idler Pulley For GM Vehicles Including Chevy Silverado Suburban Express GMC Sierra Yukon Escalade Cadillac Buick Hummer Isuzu Saab Workhorse And Workhorse Custom Chassis A-Premium Quality Replacement Part For Smooth Belt Tension And Long Lasting

This belt idler pulley is a replacement part designed to keep your serpentine belt properly tensioned and guided in GM-family vehicles and Workhorse chassis. It's commonly used in trucks, SUVs, and vans to improve belt longevity and engine reliability. Reference numbers 12555609, 12580771, 12669569, 36299 ensure correct fitment.

✅ Pulley Quantity: 1
✅ Outside Diameter: 90 mm
✅ Bearing Bore Inside Diameter: 17 mm
✅ Width: 31 mm
✅ Material: Steel

💡 What is a belt idler pulley and how does it help GM belt systems?
Handy component that keeps the serpentine belt tracking true and maintains proper tension.
- Maintains belt tension and alignment for reliable operation
- Reduces wear and squeal by keeping belt path smooth
- Fits standard bore and outer diameter specs for broad vehicle compatibility