$12.95
$22.25
$12.50
$11.95
$29.95
Restore performance and reliability to your classic Carter YF carburetor with the K4073 rebuild kit. Made in the USA using modern, ethanol-resistant materials, this kit covers fuel delivery components and is tailored for industrial, agricultural, and off-road applications.
Complete fuel system refresh: Includes Viton-tipped needle & seat, accelerator pump diaphragm, gaskets, O-rings, check balls, idle mixture screws, springs, and more. Please review the picture for items included.
Ethanol-compatible: All rubber and gasket materials resist modern fuel blends (E10/E15).
Direct-fit for YF-series carbs: Specifically designed for carb numbers such as 4497SA, 4499S, 4499SA, 4598S, 4627S, 4669S, 4670S, 4691S, 4751S, 4767S, 4768S, 4769S, 4770S, 4776S, 4777S, 4778S, 4781S, 4782S, and 4785S and more.
Made in the USA for dependable, high-quality components.
This rebuild kit ensures crisp throttle response and reliable performance by fully renewing fuel metering systems prone to wear and ethanol damage. Ideal for vintage industrial engines, it saves costs on rebuild services.
The K4073 is for Carter YF-series single-barrel carbs, specifically models like 4497SA, 4499S/SA, and others listed on the product page.
You get everything needed to rebuild the fuel and pump circuits: Viton needle & seat, pump diaphragm, gaskets/O-rings, check balls, idle screws & springs, and more.
Yes—Viton and ethanol-resistant gaskets ensure compatibility with E10/E15 gasoline.
No—a float is not included. This carburetor kit can use 3 different floats depending on your carburetor number.
NO, kits fit a certain selected set of carburetor numbers. Match your carburetor number to be sure you get the correct kit.
Yes—a free digital rebuild manual guides you through disassembly, cleaning, and assembly steps. Also please refer to our many Youtube videos for extensive help.
Yes—availability is shown under the price, and orders placed before 12?PM PST ship the same day.
Shipping rates depend on your location and selected method. No additional handling fees. See our [Shipping Info Page] for details.
K4073 is a Made-in-USA, ethanol-ready rebuild kit, specifically engineered for YF carbs in industrial/agricultural equipment—unlike generic kits that might not fit or hold up under heavy use.
Yes, if NOT opened, within 30 days and you will need a RMA. Please see our return page.
Yes, see the Carter YF tech page.
Upgrade your Carter YF rebuild with K4073 for reliable drivability and peace of mind across vintage machinery applications.
TECHNICAL:
FLOAT:carb numbers covered by this carburetor kit uses three different floats, compare your existing float or check the chart below to be sure you're ordering the correct one.
To make sure you get the correct carburetor kit, please match your carburetor number with the list provided. This kit is good for the carburetor numbers listed only. No return on opened kits.
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