Part Type: Accessory Drive Belt Idler Pulley. Position: Serpentine. 2000 GMC Yukon XL 2500 Engine: 6L V8 GAS; Position: Serpentine;. 2001 GMC Yukon XL 2500 Engine: 6L V8 GAS; Position: Serpentine;. 2001 GMC Yukon XL 2500 Engine: 8.1L V8 GAS; Position: Serpentine;.
