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Fuel Injection System Wiring Harnesses
Harness the power and exceptional drivability of fuel injection for your ride. Our selection of fuel injection wiring harnesses makes it easy to bring throttle body,...
Harness the power and exceptional drivability of fuel injection for your ride. Our selection of fuel injection wiring harnesses makes it easy to bring throttle body, multi-port, or sequential multi-port fuel injection to your vehicle. Whether you’re adding an aftermarket fuel injection system to your existing engine, swapping in a completely new fuel-injected engine, or just replacing old wiring, we’ve got what you need. We carry complete EFI wiring harnesses from Holley, FAST, Ron Francis Wiring, Accel, Painless Performance, and many others. Bring fuel injection to darn near anything—vintage hot rods,...
Harness the power and exceptional drivability of fuel injection for your ride. Our selection of fuel injection wiring harnesses makes it easy to bring throttle body, multi-port, or sequential multi-port fuel injection to your vehicle. Whether you’re adding an aftermarket fuel injection system to your existing engine, swapping in a completely new fuel-injected engine, or just replacing old wiring, we’ve got what you need. We carry complete EFI wiring harnesses from Holley, FAST, Ron Francis Wiring, Accel, Painless Performance, and many others. Bring fuel injection to darn near anything—vintage hot rods, street rods, replica cars, or whatever—with fuel injection system wiring harnesses from Summit Racing.
Showing In Stock Items. Show All 42 Items.
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Wiring Pigtail, GM Flex Fuel Sensor, 6.00 in., Multi-Port, Chevy, LS, Each
Part Number: SUM-890135
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
PRO 550 V8 COMPLETE HARNESS
Part Number: FCH-3026109037
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Wiring Harnesses, Holley EFI, GM Gen V LTx, Drive-by-Wire, Throttle Body Harness, for Terminator X and X Max ECUs, Each
Part Number: HLY-558-468
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
This product may not be eligible for select promotional offers
Fuel Injection System Wiring Harness, Flex Fuel Sensor Pigtail, 6.00 in., Multi-Port, Chevy, LS, Each
Part Number: ICB-WPFLX40
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Wiring Harnesses, Holley EFI, Benchtop Harness, Test Harness, EFI Input Connectors, Power Switch, for HP, Dominator, Terminator, Sniper ECUs, Each
Part Number: HLY-558-127
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
This product may not be eligible for select promotional offers
Fuel Injection System Wiring Harnesses, Holley EFI, Ford GT500, 3V Drive-by-Wire, Throttle Body Harness, Plug-and-Play, Ford, Mustang, 4.6L, 5.4L, Kit
Part Number: HLY-558-461
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
This product may not be eligible for select promotional offers
Main Wiring Harness, EZ-EFI 2.0 Replacement, Throttle Body Injection Style, Universal, FAST, Each
Part Number: FST-30314
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Wiring Harness, EGR Adapter Harness, Chevy, Each
Part Number: PRF-60119
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
FT550 6 CYLINDER UNIVERSAL B EXPANSION HARNESS
Part Number: FCH-2002008377
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection Wiring Harness, 10 Channel Peak and Hold Injector Driver Harness, Each
Part Number: AVM-35-3900
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
2014+ GM GEN V LT L86/L83 WITH T56 STANDALONE WIRING HARNESS
Part Number: TSN-WH1222
Not Yet Reviewed
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
2014+ GM GEN V LT L86/L83 WITH 10L80/10L90 STANDALONE WIRING HARNESS
Part Number: TSN-WH1223
Not Yet Reviewed
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
2009-2014 LS TRUCK LY6(6.0L)/L92(6.2L) WITH 4L80E STANDALONE WIRING HARNESS, EV6, DRIVE-BY-WIRE
Part Number: TSN-WH1214-1
Not Yet Reviewed
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
2009-2014 LS TRUCK LH6/LY5/LMG/LH8 (5.3L) WITH 4L80E STANDALONE WIRING HARNESS, EV6, DRIVE-BY-WIRE
Part Number: TSN-WH1213-1
Not Yet Reviewed
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
2003-2007 LS TRUCK WITH 4L60E (05-08 15 PIN) STANDALONE WIRING HARNESS, DRIVE-BY-WIRE
Part Number: TSN-WH1212-2
Not Yet Reviewed
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
2014+ GM GEN V LT L86/L83 WITH 6L80E STANDALONE WIRING HARNESS
Part Number: TSN-WH1221
Not Yet Reviewed
Estimated Ship Date: Jun 3, 2026 if ordered today
Estimated Ship Date: Jun 3, 2026 if ordered today
2003-2007 LS TRUCK WITH T56 STANDALONE WIRING HARNESS, EV6, DRIVE-BY-WIRE
Part Number: TSN-WH1212
Not Yet Reviewed
Estimated Ship Date: Jun 5, 2026 if ordered today
Estimated Ship Date: Jun 5, 2026 if ordered today
