Holley Parts and Accessories

Accelerator Pump Cover, Cast Steel, Polished, 30cc, Screws Included, for Holley 4150, 4160, 4500, Kit

Part Number: HLY-26-139S

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Metering Plates, Secondaries, Replacement, Aluminum, Silver, 0.073 in. Main Hole, 0.029 in. Idle Hole, Each

Part Number: HLY-134-39

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Carburetor Discharge Nozzles, Accelerator Pump Discharge Nozzles, Aluminum, Tube Type, 0.042 in. Nozzle Size, Gaskets, Screws Included, Pair

Part Number: HLY-121-42

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tuesday 9/2/2025

Air Bleeds, Replaceable, Screw-in, Brass, 0.024 in. Diameter, 10 in.-32 Thread, for 4150 HP, 4500 Models, 10-piece, Set

Part Number: HLY-126-24-10

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Throttle Cable Brackets, Holley, Carburetor. Transmission Kickdown, Throttle Linkage, Steel, Gold Finish, for Model 4165, 4175 Series, Each

Part Number: HLY-20-35

5.0 out of 5 stars ( 3 )

Estimated Ship Date: Tuesday 9/2/2025

Throttle Brackets, Dashpot, Solenoid, Steel, Zinc, Gold Finish, for Model 4010, 4011, 4150, 4160, Kit

Part Number: HLY-20-72

4.0 out of 5 stars ( 6 )

Estimated Ship Date: Tuesday 9/2/2025

Weatherproof Connectors, Holley EFI, Wideband Connectors, Main Harness Side, Metripack, 8-pin, Male, Black, Seals, TPA, 10-piece, Set

Part Number: HLY-570-300

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Air Bleeds, Replaceable, Screw-in, Brass, 0.035 in. Diameter, 10 in.-32 Thread, for 4150 HP, 4500 Models, 10-piece, Set

Part Number: HLY-126-35-10

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Carburetor Gaskets, Metering Block, Rubber, Black, Non-Stick, Model 4500, Pair

Part Number: HLY-108-36-2

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Carburetor Jets, Standard Main, Alcohol, Number 188, Jet Size 0.1880 in., Brass, 5/16 in.-32 Thread, Pair

Part Number: HLY-122-188

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Fitting, Fuel Bowl Inlet, 7/8-20 in., Male Threads, Hex Head, Black Steel, Holley, Each

Part Number: HLY-26-145

4.0 out of 5 stars ( 4 )

Estimated Ship Date: Tuesday 9/2/2025

Carburetor Jets, Standard Main, Alcohol, Number 192, Jet Size 0.1920 in., Brass, 5/16 in.-32 Thread, Pair

Part Number: HLY-122-192

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Accelerator Pumps, Diaphragm, Rubber, Gasoline, 50cc, Barry Grant, Demon, Holley, Each

Part Number: HLY-135-14

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Air Bleeds, Replaceable, Screw-in, Brass, 0.051 in. Diameter, 10 in.-32 Thread, for 4150 HP, 4500 Models, 10-piece, Set

Part Number: HLY-126-51-10

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Tachometer Adapters, Holley EFI, Input Ignition Adapter, for CD Ignition Box, Non Timing Control, Each

Part Number: HLY-558-302

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Carburetor Gaskets, Base Plate, 1.375 in. Primary, 2 in. Secondary, 0.25 in. Thickness, For Models 4165/4175, Each

Part Number: HLY-108-118

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Carburetor Jets, Standard Main, Alcohol, Number 200, Jet Size 0.2000 in., Brass, 5/16 in.-32 Thread, Pair

Part Number: HLY-122-200

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Carburetor Jets, Standard Main, Alcohol, Number 156, Jet Size 0.1560 in., Brass, 5/16 in.-32 Thread, Pair

Part Number: HLY-122-156

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Reference Materials, "Holley Carburetor Numerical Listing", 87 Pages, Paperback, Each

Part Number: HLY-36-168

5.0 out of 5 stars ( 2 )

Estimated Ship Date: Tuesday 9/2/2025

Air Bleeds, Replaceable, Screw-in, Brass, 0.025 in. Diameter, 10 in.-32 Thread, for 4150 HP, 4500 Models, 10-piece, Set

Part Number: HLY-126-25-10

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025

Flame Arrestor Vent Tubes, Holley, Weiand Marine, 0.500 in. Diameter, Aluminum, Natural Finish, Bolt-on Style, Each

Part Number: HLY-720-33

4.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Gauge Sending Units, Holley EFI, Pro Dash, GPS Module, Speedometer, Electric Sending Unit, Plug-in Style, for Models, 553-111, -112, -116, -117, Each

Part Number: HLY-554-147

Not Yet Reviewed

Estimated Ship Date: Sep 19, 2025 if ordered today

• Drop Ship
• Special Order

Wiring Connector Replacement Parts, Holley EFI, Replacement, Terminal Pins, Female, GT150, 16-18 gauge wire, 100-piece, Set

Part Number: HLY-571-107

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Carburetor Jets, Standard Main, Alcohol, Number 164, Jet Size 0.1640 in., Brass, 5/16 in.-32 Thread, Pair

Part Number: HLY-122-164

5.0 out of 5 stars ( 1 )

Estimated Ship Date: Tuesday 9/2/2025

Air Bleeds, Replaceable, Screw-in, Brass, 0.047 in. Diameter, 10 in.-32 Thread, for 4150 HP, 4500 Models, 10-piece, Set

Part Number: HLY-126-47-10

Not Yet Reviewed

Estimated Ship Date: Tuesday 9/2/2025