Kit provides you with the parts required to bring your Holley four barrel carb back to original specifications and \"like new\" condition, It includes new gaskets, O-rings, pump diaphragms, needle and seats, power valves, and a detailed instruction sheet, Specifically designed for carbs that use gasoline, It can be used for gas application as long as different accelerator pumps are used Holley 37-485 4150 4 Barrel Carburetor Rebuild Renew Kit Sku # 42737485 Mfr. Part # 37-485 Condition New Brand Holley Sold Each Details
These kits give you the parts required tobring your Holley four barrel carb back to original specifications and "like new" condition. The Renew Kit package includes new gaskets, O-rings, pump diaphragms, needle and seats, power valves, and a detailed instruction sheet to take you step-by-step through the rebuilding process.
Specs MFG. Part # 37-485 Fuel Type Gasoline Sold in Quantity Kit GTIN Code 090127059524 Reviews Great holly product Rated by Holy Smoke on August 10, 2025
Summary: This product worked excellent in my first series 600 double pumper. Nothing like original Holly quality Components.
Yes, I recommend this product.
I would buy this kit again! Rated by Justin on September 28, 2023
Summary: Everything worked great!
Yes, I recommend this product.
Product was great Rated by Doctor Carburetor on November 09, 2022
Summary: I only use Holley brand kits and you had it in stock
Yes, I recommend this product.
It worked well but hard to judge as I still have problems! Rated by Jim on July 31, 2022
Summary: The rebuild kit is easy to use but you still need to go slow so as to get the correct gaskets.
Yes, I recommend this product.
Excellent product Rated by Chris on April 15, 2021
Summary: Holley quality as always!
Yes, I recommend this product.
Related Items / Suggested Parts Holley 37-1539 4150 4 Barrel Alcohol Carburetor Rebuild Master Kit Holley 37-1544 4150 4 Barrel Carburetor Rebuild Fast Kit Holley 37-933 Trick Kit Carburetor Rebuild Kit Tech Support We\'re here to help before and after your purchase. If you have a question or need assistance with one of our products, please contact us through Messaging and a knowledgeable Speedway Motors team member will be happy to help. About Speedway Motors is America’s Oldest Speed Shop® and has been a trusted source for specialty rodding and racing products and friendly expert advice for more than 74 years. Founded in 1952 by “Speedy” Bill Smith – a racer and street rodder himself – Speedway has grown from a one-man operation to become the world’s largest manufacturer, distributor and retailer of street rod and racing products. Our industry-leading fast delivery is the result of same-day shipping from our state-of-the-art, centrally located 500,000 sq. ft. headquarters. Speedway’s size offers customers unmatched product selection and low pricing, while our excellent technical support and customer service have made us a recognized leader in the rodding and racing industries.
