
The Story
Fits: 2017 thru 2026 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel
*Sold Individually*
Performing fuel system maintenance or installing new injectors? Factory high pressure lines are one time use and need to be replaced whenever they are removed.
Includes:
- (1) High Pressure Line for Cylinder 1, 3, 6, or 8
DmaxStore Note:
- See photo diagrams to verify which line you need
- For cylinders 2, 4, 5, or 7, see part# 12685923
Replaces Part#:
- GM 12687230
- GM 12720157

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.

Details & Craftsmanship
Every detail has been carefully considered to bring you the perfect product.
Description
Fits: 2017 thru 2026 Chevy Silverado/GMC Sierra 2500HD/3500HD L5P Duramax Diesel
*Sold Individually*
Performing fuel system maintenance or installing new injectors? Factory high pressure lines are one time use and need to be replaced whenever they are removed.
Includes:
- (1) High Pressure Line for Cylinder 1, 3, 6, or 8
DmaxStore Note:
- See photo diagrams to verify which line you need
- For cylinders 2, 4, 5, or 7, see part# 12685923
Replaces Part#:
- GM 12687230
- GM 12720157



















