PPE Idler Pulley 3.0" OD OEM Size 01-10 GM 6.6L Duramax LB7/LLY/LBZ/LMM XDP-XD474 delivering a 2" drop in

delivering a 2" drop in the front and a 4" drop in the rear

The rail is constructed of 6063 Marine grade aluminum with an integrated bracket system with precision stainless steel pivot pins for rock-solid stability to support up to 600 pounds

moving RGB patterns that can be customized right from your smartphone

The economy or added horsepower options are tuned by PHP and will offer the same reliability as a stock tuned FICM

PPE Idler Pulley 3.0" OD OEM Size 01-10 GM 6.6L Duramax LB7/LLY/LBZ/LMM XDP-XD474 delivering a 2" drop inNeed to replace a worn or noisy idler pulley on your Duramax? The PPE 3 Inch Idler Pulley is designed as a direct fit replacement for 01 10 GM 6. 6L Duramax applications, helping restore proper belt alignment, tension, and smooth accessory drive operation. A failing idler pulley can lead to belt squeal, premature belt wear, inconsistent tension, and even complete belt failure if left unchecked. By matching the factory 3. 0 inch outer diameter