Fits: 2004.5 thru 2005 Chevy Silverado/GMC Sierra 2500HD/3500HD LLY Duramax Diesel

Upgrade your LLY Fuel Injection Pump Return Hose with this premium DmaxStore option to replace any cracked or worn out hoses. The DmaxStore design boasts an industry-leading, SAE 30R9 approved, 4-layer structure - far superior to the other 2 or 3 layer options available. Don't be fooled by anything less, trust in the unbeatable quality of DmaxStore.

Features:

• Industry leading, 4 Layer, SAE 30R9 design
• Temperature range -30 °F to 257 °F (-35 °C to 135 °C)
• Compatible with diesel and biodiesel fuels
• Conforms to EPA and CARB requirements
• Pre-formed hose for your application
• Exceptionally flexible for easy routing and installation

Includes:

• 1 - CP3 Injection Pump Return Hose
• 2 - Hose Clamps

Layers:

1. Tube: FKM fluoroelastomer rubber for low permeation and chemical resistance
2. Cover: CSM (chlorosulfonated polyethylene) resists a wide range of fuels, oils and lubricants, including biodiesel fuels
3. Reinforcement: Single-braid aramid yarn provides exceptional dimensional stability in high-temp environments
4. Exterior Cover:  CSM (chlorosulfonated polyethylene) resists heat, ozone and weather

Replaces: 

• GM Part# 97321372