Shop OEM GENERAL MOTORS Part # 12580773 (12557819). Accessory Drive Belt Idler Pulley. 1/2, 3/4 & 1 Ton, 1996 New Style, GAS ENGINE, smooth. 4.3 LITER, w/AC. 5.0 & 5.7 LITER, w/AC. 5.7 liter

Pulley. Idler. Accessory Drive Belt. Serpentine.
Accessory Drive Belt Idler Pulley. For A/C Belt. Smooth.

Accessory Drive Belt Idler Pulley

1/2, 3/4 & 1 Ton, 1996 New Style, GAS ENGINE, smooth. 4.3 LITER, w/AC. 5.0 & 5.7 LITER, w/AC. 5.7 liter, w/AC. 6 cylinder. 7.4 LITER, w/AC. Express, Savana; Gas Engines; Smooth Pulley. GAS ENGINE, smooth. S-Series; 4.3L; w/o Heavy Duty Heater. Smooth pulley. W/AC, 5.7 liter. W/AC, 7.4 liter.
Drive Belt Idler Pulley - Repair or Replace
If you've noticed that the drive belt on your is becoming worn or is making a squealing noise, your drive belt idler pulley may be worn out. Replacing your drive belt idler pulley may be the solution.