Holley Performance Carbs & More

Legendary Holley carburetors have powered professional racers to victory for years, and you can bolt the same technology onto your engine. Every Holley carb is built...

Legendary Holley carburetors have powered professional racers to victory for years, and you can bolt the same technology onto your engine. Every Holley carb is built in the USA and 100-percent flow tested for no-hassle, out-of-the-box performance. Holley fuel pumps, fuel injectors, throttle bodies, and EFI system are manufactured using that same proven quality control. Bring a renowned Holley carburetor, fuel pump, or any other high-quality air and fuel system part to your street machine, competition vehicle, boat, or daily driver. Shop Holley at Summit Racing now!

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Holley EFI Analog Display Gauges 553-127

Gauges, Holley EFI, Oil Pressure, 0-100 psi, Analog, Electric Sending Unit, 2 1/16 in. Diameter, Full Sweep, Lighted, Black Face, Red Needle, Each

Part Number: HLY-553-127

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Holley Analog Standalone Gauges 26-601

Gauge, Standalone, Oil Pressure, 0-100 psi, 2 1/16 in. Diameter, Analog, Full Sweep, Illuminated, with Electrical Sending Unit, Black Face, Kit

Part Number: HLY-26-601

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Holley Analog Standalone Gauges 26-601W

Gauge, Standalone, Oil Pressure, 0-100 psi, 2 1/16 in. Diameter, Analog, Full Sweep, Illuminated, with Electrical Sending Unit, White Face, Kit

Part Number: HLY-26-601W

Not Yet Reviewed

Estimated Ship Date: Today

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Holley EFI Analog Display Gauges 553-127W

Gauges, Holley EFI, Oil Pressure, 0-100 psi, Analog, Electric Sending Unit, 2 1/16 in. Diameter, Full Sweep, Lighted, White Face, Red Needle, Each

Part Number: HLY-553-127W

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 554-113

Engine Management Systems, HP EFI, ECU, Replacement, Plug-and-Play, 16-Injectors, Eight Coils, Analog Inputs, USB Cable, Software, Each

Part Number: HLY-554-113

3.83 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Holley HP EFI ECU and Harness Kits 550-601

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, for GM TPI, Holley Stealth Ram, Kit

Part Number: HLY-550-601

4.86 out of 5 stars ( 7 )

Estimated Ship Date: Today

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Holley HP EFI ECU and Harness Kits 550-603

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, GM, LS2, LS7, 58x Crank Sensor, Kit

Part Number: HLY-550-603

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Holley HP EFI ECU and Harness Kits 550-604

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, CANBUS, Universal, MPFI, Kit

Part Number: HLY-550-604

Not Yet Reviewed

Estimated Ship Date: Today

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Holley HP EFI ECU and Harness Kits 550-603N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NKT O2, GM, LS2, LS7, 58x Crank Sensor, Kit

Part Number: HLY-550-603N

Not Yet Reviewed

Estimated Ship Date: Today

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Holley HP EFI ECU and Harness Kits 550-602

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

4.83 out of 5 stars ( 6 )

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-606N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, CANBUS, Ford, Multi-Point, Kit

Part Number: HLY-550-606N

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-605N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, Universal, Un-terminated, Kit

Part Number: HLY-550-605N

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-605

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, CANBUS, Universal, Un-terminated, Kit

Part Number: HLY-550-605

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-625N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 5.0L, Kit

Part Number: HLY-550-625N

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-628N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4.6L, Kit

Part Number: HLY-550-628N

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-602N

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: Today

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Holley HP EFI ECU and Harness Kits for 1999-2004 MUSTANG - 550-617

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Bosch O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 4.6L, 5.4L, Kit

Part Number: HLY-550-617

1.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-616

Engine Management Systems, HP EFI, ECU and Harness, Connects 16-Injectors, 8-Coils, Bosch O2, Wideband, Ford, Lincoln, Mercury, 2V, 4.6L, 5.4L, Kit

Part Number: HLY-550-616

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-607

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, Wideband, GM, LS2, LS3, LS7, Bosch O2, Kit

Part Number: HLY-550-607

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

Holley HP EFI ECU and Harness Kits 550-604N

Engine Management Systems, HP EFI, ECU and Harness, Up to 16-Injectors, 8-Coils, Four Digital Inputs, NTK O2, Wideband, CANBUS, Universal, MPFI, Kit

Part Number: HLY-550-604N

Not Yet Reviewed

Estimated Ship Date: Jan 19, 2026 if ordered today

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Estimated Ship Date: Jan 19, 2026 if ordered today

Holley HP EFI ECU and Harness Kits for 2015-2017 F-150, 2016-2017 MUSTANG - 550-619N

Engine Management Systems, HP EFI, ECU and Harness Up to 16-Injectors, 8-Coils, NTK O2 Sensor, Wideband, CANBUS, Ford, 4-valve, 5.0L, Kit

Part Number: HLY-550-619N

Not Yet Reviewed

Estimated Ship Date: Jan 15, 2026 if ordered today

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Estimated Ship Date: Jan 15, 2026 if ordered today

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