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Automotive Ignition & Electrical Supplies
Whatever sparks your high performance dream, you’ll find it here. Get your engine started with a high-amp battery and high-torque mini starter. Keep the power flowing...
Whatever sparks your high performance dream, you’ll find it here. Get your engine started with a high-amp battery and high-torque mini starter. Keep the power flowing with a digital ignition control, performance distributor, and low-resistance ignition wires. Outfit your race car with competition-proven automotive electronics and accessories, or rewire your resto-mod with a complete wiring harness. Reprogram your vehicle’s computer or rejuvenate your daily driver with a new distributor cap, rotor, and spark plugs. We have the best automotive ignition and electrical supplies from the biggest names in the industry, in stock...
Whatever sparks your high performance dream, you’ll find it here. Get your engine started with a high-amp battery and high-torque mini starter. Keep the power flowing with a digital ignition control, performance distributor, and low-resistance ignition wires. Outfit your race car with competition-proven automotive electronics and accessories, or rewire your resto-mod with a complete wiring harness. Reprogram your vehicle’s computer or rejuvenate your daily driver with a new distributor cap, rotor, and spark plugs. We have the best automotive ignition and electrical supplies from the biggest names in the industry, in stock and ready to ship.
Showing In Stock Items. Show All 88 Items.
Ignition Coil Wiring Harnesses, Holley EFI, Replacement, LS Coil Harness, Plug-and-Play, OE Connectors, Not for LS1/LS6, Chevy, LS Engine, Pair
Part Number: HLY-558-321
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
BUILD IT WITH SUMMIT!
Summit Racing™ MAP Sensor Adapters SUM-890133
Map Sensor Adapter, Convert LS1/LS2 Map Sensor to LS3 Sensor, Harness Adapter, Chevrolet V8, Each
Part Number: SUM-890133
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Adapter Harnesses, Holley EFI, MAP Sensor Adapter, MPFI Weatherpack 2-pin to 3-pin Delphi GT Connector, Plug-and-Play, LS Engine Harness, Each
Part Number: HLY-558-466
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Adapter Harnesses, Holley EFI, MAP Sensor Adapter, 3-pin Delphi GT to 3-pin Delphi M/P 150 Connector, Plug-and-Play, LS Engine Harness, Each
Part Number: HLY-558-467
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Wiring Harnesses, Holley EFI, LS1/6, 24X/1X, Main Harness, Plug-and-Play, Extended Length, for Dominator/HP EFI Systems, Chevy, 4.8-6.0L, Each
Part Number: HLY-558-133
Estimated Ship Date: Nov 27, 2026 if ordered today
Estimated Ship Date: Nov 27, 2026 if ordered today
Weatherproof Connectors, Holley EFI, LS MAP/CPS Connector, Main Harness, Metripack, 3-pin Female, Gray Plastic, with Pins, Seals, TPA, Each
Part Number: HLY-570-217
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ignition Coil Wiring Harnesses, Holley EFI, Coil-On/Near Plug Harness, for GM LSx Coil Harness, Holley 558-312, to HP, Dominator EFI Systems, Each
Part Number: HLY-558-307
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Weatherproof Connectors, Holley EFI, LS 58X Crank/CPS Sensor Connectors, Metripack, 3-pin, Female, Black, with Pins, Seals, TPA, 10-piece, Chevy, Set
Part Number: HLY-570-318
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Ignition Coil Wiring Harnesses, Holley EFI, C-N-P Ignition Sub-Harness, 12-gauge Wire, for HP EFI, Smart Coils, Chevy, LS Based, 4.8-7.0L, Each
Part Number: HLY-558-318
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ignition Coil Wiring Harnesses, Holley EFI, LS Coil Extension Harness, 36 in. Long, OE Connectors, Plug & Play, Techflex F6 Loom, Chevy, 4.8-70L, Pair
Part Number: HLY-558-326
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Ignition Coil Wiring Harnesses, Holley EFI, HP Smart Coil, Ignition Harness, for HP/Dominator ECU, Chevy, LS Based, 4.8L, 5.3L, 6.0L, 6.2L, 7.0L, Each
Part Number: HLY-558-312
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Harness Adaptors, Holley EFI, LS3 MAP Sensor Adapter, Plug-and-Play, Pre-Terminated, Adapts to LS1/LS2 Engine, Chevy, 5.7L, 6.0L, Each
Part Number: HLY-558-416
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Weatherproof Connectors, Holley EFI, Replacement, Hall Effect Sensor Connector, Metripack, 3-pin Female, Black, Pins, Seals, TPA, for 554-118, Each
Part Number: HLY-570-223
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Wiring Harnesses, Holley EFI, LS2/3/7, 58X/4X, Main Harness, Plug-and-Play, Extended Length, for Dominator/HP EFI Systems, Chevy, 6.0-7.0L, Each
Part Number: HLY-558-134
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Weatherproof Connectors, Holley EFI, LS1 Knock Sensor Connector, Main Harness, Metripack, 2-pin Female, Black Plastic, with Pins, Seals, TPA, Each
Part Number: HLY-570-219
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Weatherproof Connectors, Holley EFI, LS 24X Crank, MAP Sensor Connectors, Metripack, 3-pin, Female, Gray, with Pins, Seals, TPA, 10-piece, Chevy, Set
Part Number: HLY-570-317
Not Yet Reviewed
Estimated Ship Date: Nov 25, 2026 if ordered today
Estimated Ship Date: Nov 25, 2026 if ordered today
Transmission Harnesses, Holley EFI, Control Harness, F-Body, T-56 Tranny, Plug-and-Play, VSS, Reverse Lockout, for Terminator X, Max X ECUs, Each
Part Number: HLY-558-481
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Wiring Harnesses, Holley EFI, LT4 Engine, Main Harness, for Terminator X, V3 ECU, Cadillac, Chevy, Each
Part Number: HLY-558-130
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Fuel Injection System Components, Holley EFI, Main Harness, Plug-and-Play, Factory PWM/IAC Connectors, with OE Injectors, Ford, Mustang, 5.0L, Each
Part Number: HLY-558-128
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Weatherproof Connectors, Holley EFI, LS2 Knock Sensor Connector, Main Harness, GT150, 2-pin Female, White Plastic, with Pins, Seals, TPA, Each
Part Number: HLY-570-220
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, CANBUS, Chevy, LS, 5.7L, Kit
Part Number: HLY-550-602
Estimated Ship Date: Nov 25, 2026 if ordered today
Estimated Ship Date: Nov 25, 2026 if ordered today
Engine Management Systems, Terminator LS, Plug-and-Play, 8-Injectors, 8-Coils, Drive-by-Wire, Trans Control, Chevy, Truck, 4.8-6.2L, 58x Crank, Kit
Part Number: HLY-550-613
Not Yet Reviewed
Estimated Ship Date: Nov 30, 2026 if ordered today
Estimated Ship Date: Nov 30, 2026 if ordered today
Engine Management Systems, Terminator LS, Plug-andPlay, 8-Injectors, 8-Coils, Analog Inputs, with Controller, Chevy, Truck, 4.8-6.0L, 24x Crank, Kit
Part Number: HLY-550-614
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NKT O2 Sensor, GM, LS, 24x Crank Sensor, Kit
Part Number: HLY-550-602N
Not Yet Reviewed
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Weatherproof Connectors, Holley EFI, GM LSx Engine, Main Harness Connectors, Connectors, Pins, Seals, Cavity Plugs included, Kit
Part Number: HLY-570-103
Estimated Ship Date: Tomorrow
Estimated Ship Date: Tomorrow
Engine Management Systems, Terminator LS, Plug-andPlay, 8-Injectors, 8-Coils, Drive-by-Wire, with Controller, Chevy, Truck, 4.8-6.0L, 24x Crank, Kit
Part Number: HLY-550-615
Not Yet Reviewed
Estimated Ship Date: Nov 25, 2026 if ordered today
Estimated Ship Date: Nov 25, 2026 if ordered today
