DmaxStore CP3 Injection Pump Hose Kit, 2004.5-2005 LLY

Part# DMAX-5277+DMAX-1372

$52.00 Includes Free Shipping.

WARNING: Cancer and Reproductive Harm - www.P65Warnings.Ca.Gov

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

Upgrade your LLY Fuel Injection Pump Hoses 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.


  • 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 hoses for your application
  • Exceptionally flexible for easy routing and installation


  • 1 - CP3 Injection Pump Feed Hose
  • 1 - CP3 Injection Pump Return Hose
  • 4 - Hose Clamps


  • Fuel Rail To Return Pipe Hose


  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


  • GM Part# 12625277 and 97321372

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