🚚 Free Worldwide Shipping on All Orders!Shop Now
HomeStore

7.5mm Dummy Fuel Injectors Plugs for Gen V Direct Injection L83 LT1

Product image 1
1 / 7
+2

7.5mm Dummy Fuel Injectors Plugs for Gen V Direct Injection L83 LT1

7.5mm Dummy Fuel Injectors Plugs for LT Engines

Compatible with: GM Gen V LT Series Engines

  • Used when switching to port fuel injection
  • These 7.5mm plugs are compatible with 2014-2018 (GM started using 6mm injectors in some models and years inconsistently from 2019-2024.  2025+ used only 6mm) LT1, LT4, L83, L86, L8B engines.  For 6mm injector engines then use 551333-L84
  • Requires plugging the lifter bore for the high pressure fuel pump, available separately, 551965-PLUG
  • Includes: 8 mock injectors, retainer bars, and pre-installed seals
  • Made in Wichita Kansas from 6061-T6, USA produced billet aluminum

 PLEASE MEASURE YOUR FACTORY INJECTOR NOZZLE DIAMETER BEFORE ORDERING. 

7.5mm Dummy Fuel Injectors Plugs for LT Engines

Compatible with: GM Gen V LT Series Engines

  • Used when switching to port fuel injection
  • These 7.5mm plugs are compatible with 2014-2018 (GM started using 6mm injectors in some models and years inconsistently from 2019-2024.  2025+ used only 6mm) LT1, LT4, L83, L86, L8B engines.  For 6mm injector engines then use 551333-L84
  • Requires plugging the lifter bore for the high pressure fuel pump, available separately, 551965-PLUG
  • Includes: 8 mock injectors, retainer bars, and pre-installed seals
  • Made in Wichita Kansas from 6061-T6, USA produced billet aluminum

 PLEASE MEASURE YOUR FACTORY INJECTOR NOZZLE DIAMETER BEFORE ORDERING. 

$71.40

Original: $203.99

-65%
7.5mm Dummy Fuel Injectors Plugs for Gen V Direct Injection L83 LT1—

$203.99

$71.40

Description

7.5mm Dummy Fuel Injectors Plugs for LT Engines

Compatible with: GM Gen V LT Series Engines

  • Used when switching to port fuel injection
  • These 7.5mm plugs are compatible with 2014-2018 (GM started using 6mm injectors in some models and years inconsistently from 2019-2024.  2025+ used only 6mm) LT1, LT4, L83, L86, L8B engines.  For 6mm injector engines then use 551333-L84
  • Requires plugging the lifter bore for the high pressure fuel pump, available separately, 551965-PLUG
  • Includes: 8 mock injectors, retainer bars, and pre-installed seals
  • Made in Wichita Kansas from 6061-T6, USA produced billet aluminum

 PLEASE MEASURE YOUR FACTORY INJECTOR NOZZLE DIAMETER BEFORE ORDERING.Â