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Holley Terminator X Engine Management Systems 550-1225

Engine Management Systems, Terminator X, Up to 8-EV6 Injectors, 8-Coil, O2 Sensor, Plug-and-Play, Tuner, Controller, Dodge, Chrysler, 5.7-6.4L, Kit

Part Number: HLY-550-1225

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40 amps Ron Francis Wiring Universal Relay Kit RL404

Relay, 40 Amp, 12 V, 5 Male Terminals, Quad Relays, Single Pole Double Throw, Universal, Kit

Part Number: RFW-RL404

5.0 out of 5 stars ( 2 )

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Holley Terminator X MAX Engine Management Systems 550-929

Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Sensors, Chevy, LS, 5.7L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-929

5.0 out of 5 stars ( 1 )

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250 amps Moroso Alternator Shutdown Relay Kit 74107

Relay, Alternator Shutdown, 12 V, 250 amps, Single Pole, Male Thread Terminal, Each

Part Number: MOR-74107

4.0 out of 5 stars ( 2 )

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Holley Terminator X MAX Engine Management Systems 550-1631

Engine Management Systems, Terminator X MAX, 8-Injectors, 8-Coils, Plug-and-Play, LT Drive-by-Wire, Trans Control, Chevy, Late LT, 5.3L, 6.2L, Kit

Part Number: HLY-550-1631

1.0 out of 5 stars ( 1 )

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30 amps MSD Relay and Wiring Kit 89618

Relay, Fuel Pump, 30 Amp, 12 V, Single Pole, Spade Terminal, 5 Male, Each

Part Number: MSD-89618

5.0 out of 5 stars ( 2 )

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Holley Terminator X Engine Management Systems 550-1216

Engine Management Systems, Terminator X, Up to 8-EV1 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, 3.5 in. Controller, Ford, 4.6L, 5.4L, Kit

Part Number: HLY-550-1216

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Holley EFI Terminator Stealth Main Wiring Harnesses 558-121

Fuel Injection System Wiring Harnesses, Holley EFI, Terminator Stealth 2x4, Upgrade Main Harness, Plug-and-Play, Universal, Kit

Part Number: HLY-558-121

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40 amps Pico Relay and Connector Kit 5591PT

Relay and Harness, 40 Amp, Single Pole, Kit

Part Number: PCO-5591PT

4.75 out of 5 stars ( 76 )

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Caspers Electronics Weatherpack Wiring Connector Refill Kits 106101

Caspers Electronics Weatherpack Wiring Connector Refill Kits 106101

Refill Kit, Weatherpack Connectors, Terminal Supplement, 12-Gauge, Set of 25

Part Number: CEI-106101

5.0 out of 5 stars ( 2 )

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Rick's Motorsport Stator Rebuild Kits 27-22780

STATOR, STATOR KIT

Part Number: RSE-22-780

Not Yet Reviewed

Estimated Ship Date: May 4, 2026 if ordered today

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Estimated Ship Date: May 4, 2026 if ordered today

ididit Steering Column Harness Adapter Kits 3100037616

Flasher Kit, 4 Way, Chevy, Kit

Part Number: IDT-3100037616

4.5 out of 5 stars ( 2 )

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40 amps Ron Francis Wiring Universal Relay Kit RL402

Relay, 40 Amp, 12 V, 5 Male Terminals, Double Relay, Single Pole Double Throw, Universal, Kit

Part Number: RFW-RL402

5.0 out of 5 stars ( 1 )

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Holley Terminator X MAX Engine Management Systems 550-950

Engine Management Systems, Terminator X MAX, Universal, 8-EV1 Injectors, 8-Coils, GM Drive-by-Wire, Tuner/Trans Control, Domestic, Pushrod Engine, Kit

Part Number: HLY-550-950

Not Yet Reviewed

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

Painless Performance CirKit Boss Auxiliary Fuse Block/7 Circuit/Weatherproof Kits (7 Ignition 12 V) 70217

Fuse Block, 7-Circuit, Universal, Kit

Part Number: PRF-70217

4.88 out of 5 stars ( 33 )

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Holley Terminator X MAX Engine Management Systems for 2020-2024 F-350 SUPER DUTY, F-250 SUPER DUTY, 2021-2025 E-350 SUPER DUTY - 550-1431

Engine Management Systems, Terminator X MAX, 8-Injectors, 8-Coil, Sensors, Tuner Controller, Ford 7.3 L Godzilla, Kit

Part Number: HLY-550-1431

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Holley Terminator X MAX Engine Management Systems 550-935T

Engine Management Systems, Terminator X MAX, 8-EV1 Injectors, 8-Coils, Trans Control, Analog, USB Cable, Chevy, LS, 4.8-6.2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-935T

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Pico Solid Barrel Deutsch Kits 0005-DB

Deutsch Connectors, Solid Barrel, Assortment, 2/3/4/6/8 Way Housings, Wedgelocks, Terminals, Metal Case, 651-Pieces, Kit

Part Number: PCO-0005-DB

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American Autowire Battery Cable Terminals 500730

Battery Cable Terminals, Eyelet Style, 4-gauge, Copper, 3/8 in. Size, Set of 4

Part Number: AWW-500730

5.0 out of 5 stars ( 2 )

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Painless Performance CirKit Boss Auxiliary Fuse Block/7-Circuit Kits (3 Constant/4 Ignition 12 V) 70107

Fuse Block, 7-Circuit, Universal, Kit

Part Number: PRF-70107

4.77 out of 5 stars ( 39 )

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American Autowire Battery Cable Terminals 500732

Battery Cable Terminals, Eyelet Style, 8-gauge, Copper, 3/8 in. Size, Set of 4

Part Number: AWW-500732

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Holley Terminator X Engine Management Systems 550-1218

Engine Management Systems, Terminator X, Up to 8-EV1 Injectors, 8-Coils, Analog, O2 Sensor, Plug-and-Play, 3.5 in. Controller, Ford, 4.6L, 5.4L, Kit

Part Number: HLY-550-1218

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Holley Terminator X MAX Engine Management Systems 550-931T

Engine Management Systems, Terminator X MAX, 8-EV6 Injectors, 8-Coils, Analog, Sensors, USB Tuning Cable, Chevy, LS, 4.8-6,2L, 4x Cam, 58x Crank, Kit

Part Number: HLY-550-931T

5.0 out of 5 stars ( 1 )

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Painless Performance Dual Activation Electric Fan Relay Kits 30116

Electric Fan Control/Relay Kit, Dual Fans, 195 Degrees on, 185 Degrees Off., Kit

Part Number: PRF-30116

4.64 out of 5 stars ( 22 )

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Holley Terminator X MAX Engine Management Systems 550-930T

Engine Management Systems, Terminator X MAX, 8-Injectors, 8-Coils, Sensors, USB Tune Cable, Chevy, LS, 4.8-6,0L, 1x Cam, 24x Crank, Kit

Part Number: HLY-550-930T

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