🎉 Up to 70% Off Selected ItemsShop Sale
HomeStore

Gen V LT4 High Pressure Fuel Pump Harness Adapter

Product image 1
1 / 6

Gen V LT4 High Pressure Fuel Pump Harness Adapter

Gen V LT4 HPFP Harness Adapter

Adapts 2019+ passenger rail harness to 2014-2018 high pressure fuel pump connector, necessary for LT4 pump upgrade on 2019+ LT Engines

  • Allows use of older LT4 HPFP (12711668) on later model year vehicles
  • Includes: 6" adapter harness
  • Assembled in Wichita, Kansas using OEM tooling, connectors, terminals, and seals to get that audible "click" when the connector is installed onto the harness, just like factory.
  • We use USA made, TXL wire with factory LT wire colors
  • Every wire assembly is tested using a professional-grade harness diagnostic system to verify correct pinout, continuity, and wire integrity, ensuring reliable performance under sustained electrical loads and demanding operating conditions

Don’t replace your entire passenger bank injector harness, instead convert the one necessary connector with our OEM-quality adapter. 

$43.99
Gen V LT4 High Pressure Fuel Pump Harness Adapter—
$43.99

Product Information

Shipping & Returns

Description

Gen V LT4 HPFP Harness Adapter

Adapts 2019+ passenger rail harness to 2014-2018 high pressure fuel pump connector, necessary for LT4 pump upgrade on 2019+ LT Engines

  • Allows use of older LT4 HPFP (12711668) on later model year vehicles
  • Includes: 6" adapter harness
  • Assembled in Wichita, Kansas using OEM tooling, connectors, terminals, and seals to get that audible "click" when the connector is installed onto the harness, just like factory.
  • We use USA made, TXL wire with factory LT wire colors
  • Every wire assembly is tested using a professional-grade harness diagnostic system to verify correct pinout, continuity, and wire integrity, ensuring reliable performance under sustained electrical loads and demanding operating conditions

Don’t replace your entire passenger bank injector harness, instead convert the one necessary connector with our OEM-quality adapter.Â