Buy OEM 2003 Chevrolet Part # 10229114. Tensioner. Belt. Accessory. Drive. 4.3 LITER. 5.0 & 5.7 LITER. 5.7 liter. 6.2 LITER DIESEL. 7.4 LITER. All Models; 4.3L, 5.0L, 5.7L

Accessory Drive Belt Tensioner. Assembled device that applies load to the Drive Belt. For A/C Belt. Order engine Drive Belts by year & engine type. Fan. Serpentine.

Accessory Drive Belt TensionerAccessory Drive Belt Tensioner Assembly

4.3 LITER. 5.0 & 5.7 LITER. 5.7 liter. 6.2 LITER DIESEL. 7.4 LITER. All Models; 4.3L, 5.0L, 5.7L. S-Series; 4.3L. W/o 7.4 liter, w/o AC.
Drive Belt Tensioner - Repair or Replace
A squeaking or squealing noise from your engine bay is usually due to a loose drive belt. Consider replacing the drive belt tensioner on your 2003 Chevrolet .