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 Split Wire Looms 573-103

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.250 in. I.D., 50 ft. Long, Each

Part Number: HLY-573-103

4.33 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Holley Split Wire Looms 573-104

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.375 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-104

4.5 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Holley Split Wire Looms 573-106

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.500 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-106

5.0 out of 5 stars ( 6 )

Estimated Ship Date: Today

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Holley Split Wire Looms 573-108

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.750 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-108

4.5 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Holley Split Wire Looms 573-101

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.125 in. I.D., 50 ft. Long, Each

Part Number: HLY-573-101

3.0 out of 5 stars ( 2 )

Estimated Ship Date: Today

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Holley Split Wire Looms 573-105

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.375 in. I.D., 50 ft. Long, Each

Part Number: HLY-573-105

Not Yet Reviewed

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Holley Split Wire Looms 573-102

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.250 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-102

5.0 out of 5 stars ( 10 )

Estimated Ship Date: Today

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Holley Split Wire Looms 573-107

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.500 in. I.D., 50 ft. Long, Each

Part Number: HLY-573-107

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Holley Split Wire Looms 573-110

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 1.000 in. I.D., 10 ft. Long, Each

Part Number: HLY-573-110

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Today

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Holley Split Wire Looms 573-109

Convoluted Tubing, Wire Looms and Wire Sleeves, Holley EFI, Split Wire Loom, Black Nylon, Slip-on Insulation, 0.750 in. I.D., 50 ft. Long, Each

Part Number: HLY-573-109

Not Yet Reviewed

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Holley EFI Flame Retardant Split-Wire Looms 573-203

Heat Sleeve, Holley EFI, Fire Retardant, Split-Wire Loom, Nomex®, Black, Temperature -76 to 390 Degrees F, 0.625 in. I.D., 10 ft. Length, Each

Part Number: HLY-573-203

Not Yet Reviewed

Estimated Ship Date: Nov 23, 2026 if ordered today

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Estimated Ship Date: Nov 23, 2026 if ordered today

Holley EFI Flame Retardant Split-Wire Looms 573-202

Heat Sleeve, Holley EFI, Fire Retardant, Split-Wire Loom, Nomex®, Black, Temperature -76 to 390 Degrees F, 0.500 in. I.D., 10 ft. Length, Each

Part Number: HLY-573-202

Not Yet Reviewed

Estimated Ship Date: Today

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