HOLLEY 12R-4003B Carburetor Carb Rebuild 1BBL Rebuild/parts

( Brand: Holley ), ( Manufacturer Part Number: 12R-4003B ), ( Non-domestic Product: No ), ( Material: Alloy ), ( Vintage Part: Yes ), ( Placement On Vehicle: Engine ), ( Choke Type: Mechanical ), ( Type: Carburetor ), ( Mounting Flange Type: Spread Bore ), ( Manufacturer Warranty: No Warranty ), ( Features: Down Draft ), ( Country/region Of Manufacture: United States )

Review HOLLEY Carburetor Carb Rebuild/parts fits 1920

The Holley 12-4003B 1bbl Carburetor is a high-performance, vintage-inspired fuel delivery system that is ideal for restoring or upgrading the fuel system of your 1920 model vehicle. This carburetor is a rebuild kit for the 12-4003B model, which is a 1-barrel carburetor known for its reliability, ease of tuning, and smooth power delivery.

The kit includes all the necessary parts to fully rebuild and refurbish your Holley 12-4003B carburetor. It includes a new float bowl gasket, main jet, pilot jet, accelerator pump diaphragm, accelerator pump lever, accelerator pump plunger, accelerator pump shaft, accelerator pump rod, accelerator pump spacer, accelerator pump spring, accelerator pump screw, accelerator pump nut, accelerator pump linkage, accelerator pump bracket, idle mixture screw, idle mixture screw lockwasher, idle mixture needle, idle mixture needle clip, idle mixture needle jet, idle mixture needle screw, idle mixture needle screw lockwasher, main jet screw, main jet screw lockwasher, power valve, power valve spring, power valve screw, power valve needle, power valve needle clip, power valve needle jet, power valve needle screw, power valve needle screw lockwasher, secondary needle, secondary needle clip, secondary needle jet, secondary needle jet screw, secondary needle jet screw lockwasher, secondary needle screw, secondary needle screw lockwasher, secondary needle spring, secondary needle spring clip, secondary needle spring lockwasher, secondary needle valve, secondary needle valve spring, secondary needle valve screw, secondary needle valve screw lockwasher, fuel inlet needle, fuel inlet needle clip, fuel inlet needle jet, fuel inlet needle screw, fuel inlet needle screw lockwasher, fuel inlet valve, fuel inlet valve spring, fuel inlet valve screw, fuel inlet valve screw lockwasher, float, float bowl drain plug, float bowl gasket, float bowl mounting screw, float bowl screw lockwasher, float level adjusting screw, float level adjusting screw lockwasher, float level adjusting spring, float level adjusting spring clip, float level adjusting spring lockwasher, fuel pump, fuel pump gasket, fuel pump screw, fuel pump screw lockwasher, fuel pump valve, fuel pump valve spring, fuel pump valve screw, fuel pump valve screw lockwasher, primary venturi, primary venturi gasket, primary venturi screw, primary venturi screw lockwasher, secondary venturi, secondary venturi gasket, secondary venturi screw, secondary venturi screw lockwasher, venturi cover, venturi cover gasket, venturi cover screw, venturi cover screw lockwasher, accelerator pump housing, accelerator pump housing gasket, accelerator pump housing screw, accelerator pump housing screw lockwasher, accelerator pump housing venturi, accelerator pump housing venturi gasket, accelerator pump housing venturi screw, accelerator pump housing venturi screw lockwasher, accelerator pump cover, accelerator pump cover gasket, accelerator pump cover screw, accelerator pump cover screw lockwasher, accelerator pump cover venturi, accelerator pump cover venturi gasket, accelerator pump cover venturi screw, accelerator pump cover venturi screw lockwasher, linkage bracket, linkage bracket screw, linkage bracket screw lockwasher, linkage rod, linkage rod screw, linkage rod screw lockwasher, linkage rod end, linkage rod end screw, linkage rod end screw lockwasher, linkage rod end bushing, linkage rod end bushing screw, linkage rod end bushing screw lockwasher, linkage rod end bushing washer, linkage rod end washer screw, linkage rod end washer screw lockwasher, linkage rod end washer lockwasher, throttle linkage, throttle linkage screw, throttle linkage screw lockwasher, throttle linkage bracket, throttle linkage bracket screw, throttle linkage bracket screw lockwasher, throttle shaft, throttle shaft screw, throttle shaft screw lockwasher, throttle lever, throttle lever screw, throttle lever screw lockwasher, throttle shaft bushing, throttle shaft bushing screw, throttle shaft bushing screw lockwasher, throttle shaft bushing washer, throttle shaft washer, throttle shaft washer screw, throttle shaft washer screw lockwasher, throttle shaft washer lockwasher, throttle linkage clevis, throttle linkage clevis screw, throttle linkage clevis screw lockwasher, throttle linkage clevis bushing, throttle linkage clevis bushing screw, throttle linkage clevis bushing screw lockwasher, throttle linkage clevis washer, throttle linkage clevis washer screw, throttle linkage clevis washer screw lockwasher, throttle linkage clevis washer lockwasher.

This comprehensive rebuild kit ensures that every component is replaced with high-quality Holley parts, ensuring a reliable and long-lasting carburetor performance. The kit also includes detailed instructions to guide you through the rebuild process, making it easy for both beginners and experienced mechanics to complete the rebuild. With this Holley 12-4003B 1bbl Carburetor Rebuild Kit, you can restore your classic car's fuel system to its original glory or enhance its performance for a smoother, more powerful ride.

1. High-quality construction: The Holley 12r-4003b carburetor is known for its durability and reliability, making it a popular choice among car enthusiasts.

2. Easy to install: The rebuild kit includes all the necessary parts and instructions, making it easy for DIY car owners to complete the job themselves.

3. Improves performance: Rebuilding the carburetor can help improve the engine's performance by ensuring proper fuel and air mixture.

4. Cost-effective: Rebuilding the carburetor is often more cost-effective than buying a new one, especially for vintage vehicles.

1. Requires time and skill: Rebuilding the carburetor can be a time-consuming process and requires a certain level of mechanical skill.

2. Potential for damage: If not done correctly, rebuilding the carburetor can damage the engine or other components.

3. Limited availability: The Holley 12r-4003b carburetor may not be available for all 1920 model vehicles, and custom modifications may be required.

If you have the necessary time, skill, and patience, rebuilding the Holley 12r-4003b carburetor with a rebuild kit can be a cost-effective and rewarding way to improve the performance of your 1920 model vehicle. However, it's important to ensure that you have the right tools and knowledge to complete the job correctly, or seek professional assistance if needed.

If you're unsure about your ability to rebuild the carburetor yourself, consider hiring a professional mechanic to do the job for you. They have the necessary skills and experience to ensure that the job is done correctly and safely, and can provide you with peace of mind. Alternatively, you can purchase a new carburetor that is specifically designed for your 1920 model vehicle, which may be a more convenient option if you're short on time or lack the necessary mechanical skills.

Details:

Used part - as is.

part #: 12r4003b prices

• $21.78-$159.00

specifications carbcoon:

• for years: 1920
• brand: Holley
• mpn: 12r-4003b
• non-domestic product: No
• material: Alloy
• vintage part: Yes
• placement on vehicle: Engine
• choke type: Mechanical
• type: Carburetor
• mounting flange type: Spread Bore
• manufacturer warranty: No Warranty
• features: Down Draft
• country/region of manufacture: United States

shipping carbcoon:

• class: Standard
• cost: $13.55
• carrier: USPS
• transit: 6-11 Days
• service: USPS Ground Advantage
• type: Calculated

offer carbcoon:

• sold: 0
• options: Ship-to-home
• quantity: 1
• availability: In Stock
• started: September 27, 2024
• best offers: True

payments carbcoon:

• other
• wallet: Google-pay
• credit card: Visa

seller carbcoon:

• city: Mannford, Oklahoma
• # reviews: 2065
• rating: 99.5%

general carbcoon:

• Car Truck Parts Accessories > Air Fuel Delivery > Carburetors
• condition: For parts or not working

returns carbcoon:

• paid by: Buyer
• time: 30 Days
• policy: Returns Accepted

Holley 12R-4003B Is Similar To:

• Holley 4557 Ls6 L78 396 454 Carburetor 3967477-gg 1970 Chevelle Camaro Nova (38.2% similar) She was removed off of a running BBC motor but has been sitting for few months. It has not been tested and could possibly need work, labor, other parts/materials before use. May be shipped via ups, USPS or FedEx. The base plate was replaced. Selling an oem Holley list 4557 carburetor with...(May 17th, 2024)
• Holley 3886091 L-88 427 Corvette Carb 3886091an (38.8% similar) 427 L-88 corvette carburetor.holley 780 .part number 388-6091 an ,work great...(May 17th, 2024)
• Holley 10741 Teapot 4000 4-barrel Carburetor 1074-1 Core 1955 Ford Thunderbird 292 V-8 (45.1% similar) Ford part number EYCK-9510-T. Holley teapot 4000 4-BARREL carburetor, list number 1074-1. Please verify part number and pictures match your application. Linkage moves free. See pics for condition. Carb core appears to be mostly complete. Core for rebuilding or parts...(May 17th, 2024)
• Holley 1920 Vintage Glass Bowl Carburetor Hot Rod Gasser Carb Core Rebuild (55.4% similar) Good condition all linkage moves as it should great for rebuild...(May 17th, 2024)
• Holley 06425c Two Barrel 650cfm Carburetor 6425 Imca Cheater Outlaw Racing Core (41.5% similar) Rare Holley two barrel carburetor, list number 6425 - carb is together with choke removed but horn intact metering block also in very nice physical condition, all linkage moves freely kick down arm as well good overall core condition has been sitting fryers it should base and bores look...(May 17th, 2024)
• Holley Ecz-9510-m Teapot 4000 4-barrel Carburetor 1161-2 Carb 1956 Ford Thunderbird 312 V-8 (46.3% similar) Carb core appears to be mostly complete. Core for rebuilding or parts. Holley teapot 4000 4-BARREL carburetor, list number 1161-2. Please verify part number and pictures match your application. See pics for condition. Ford part number CZ-9510-M. Linkage moves free...(May 18th, 2024)
• Holley R3310-1 Carburetor List-3310-1 780cfm H4-4150 4bbl Carb Ford Chevy Bop Mopar (43.2% similar) Used Holley 780 cfm 4BBL carburetor. Being sold for parts, restoration, core, rebuild. Looks to be complete, no cracks, being sold as/is. LIST-3310-1, date, 0653...(May 18th, 2024)
• Holley 3972121 4555 Carb 1970 Lt1 Corvette And Camaro Z28 4 Speed 904 Oct 1969 Restored (35% similar) Part #: Holley 3972121 for sale...(May 18th, 2024)
• Holley 3969898-gr 4492 Carb 9b2 Dec 69 1970 454 Ls6 396 L78 Automatic Chevelle Camaro Nova (27.4% similar) Part #: Holley 3969898-GR for sale...(May 18th, 2024)
• Holley 1850-3 Carburetor 4 Barrel 600 Cfm Vac Secondary Nice Rebuildable Core (51.1% similar) Many of the carbs have been rebuilt and were sitting in plastic bags, but I no history on what was done to them. It is missing a part of the electric choke. Very nice and clean vintage. Spectre fuel system accessory carburetor. The rest of it looks complete. 600 cfm vac...(May 19th, 2024)
• Holley 4360 Economaster 450 Cfm Carburetor 7454 Quadrajet Replacement Chevrolet (45.9% similar) List number is 7454. For sale is one 1 used Holley 4360 series 450 cfm spread bore carburetor. Verify it will fit your application prior to purchasing. Please look closely at all the pictures for condition and details. The carb is in poor shape and for parts only...(May 19th, 2024)