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Holley 37-1543 2300 2 Barrel Carburetor Rebuild Fast Kit

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Gasket Material
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Includes a 30cc and 50cc accelerator pump and a 6.5 power valve
Holley 37-1543 2300 2 Barrel Carburetor Rebuild Fast Kit

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Please NOTE the following about this product:

  • This item is sold as a kit.



Q & A

What's in the Box

These kits are ideal for a quick refresher of your two barrel Holley carb. Each kit includes step-by-step instructions and a detailed tuning guide.

Kit includes one 30cc and one 50cc accelerator pump (black material for gas) and one 6.5 power valve.

427-371543 Instructions (PDF)


This rebuild kit will service the following Holley Carburetors

R4412     R4412-1   R4412-2   R4412-3   R7448     R9647
R84412   R87448 

You may also be interested in:

Holley 37-474 2 Barrel 500 CFM Rebuild Kit
(Part #42737474)

Each Holley Renew Kit carburetor rebuild kit contains all parts and gaskets that are necessary to restore “like new” performance to your carburetor. Detailed instructions are also included to guide you through the rebuilding process. Start off the season with a quality Holley Renew Kit repair kit. It's your guarantee for trouble–free cruising.

Fits Holley Model 2300 500cfm two barrel carburetors ONLY.

  • Gaskets
  • O-Rings
  • Pump Diaphragm
  • Needle & Seat
  • Power Valve
  • Instructions

427-37474 Instruction Sheet (PDF)