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04.5-10 GM 6.6L Duramax Dorman Driver Side Fuel Injector Return Line

This replacement fuel injector line is precision-engineered to match the fit and design of the original fuel injector line on specific vehicles. It comes with any vehicle-specific mounting hardware for a complete installation.

  • Direct replacement - this fuel injector line is engineered to match the original fuel injector line on specified vehicles
  • Robust materials - manufactured with a material-hardening process to ensure lines withstand high pressure during engine operation
  • Critical fix - because all fuel injectors lines have a one-time-use, crushable seal, replacement of entire line is necessary for optimal seal
  • Cost-effective solution - part is quality-tested and less expensive than getting replacement from dealership

Dorman: 904-123

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