Products Description
Chain Saw MS250 / K20-WAT Carburetor Repair Kit
Precision Rebuild Kit for STIHL MS250 & Walbro WA/WT Series Carburetors
The K20-WAT carburetor repair kit is a comprehensive rebuild solution for Walbro WA and WT series carburetors, commonly found on STIHL MS250, MS230, MS210, and their predecessor models 021, 023, and 025 chainsaws . This kit includes all the essential gaskets, diaphragms, and internal components required to restore proper fuel metering and engine performance . Hardened or perished diaphragms, often caused by ethanol-blended fuel exposure, are a leading cause of hard starting, stalling, and poor running on this platform . Rebuilding your existing carburetor with the K20-WAT kit is a cost-effective alternative to purchasing a new carburetor, allowing you to retain the original housing while replacing all wear-prone components in a single service operation .
Technical Profiles & Materials
Complete Rebuild Solution – Includes all necessary gaskets, metering and pump diaphragms, inlet needle valve, metering lever, spring, pin, welch plug, and fuel strainer . Provides everything needed for a full carburetor overhaul in one package .
Genuine OEM Quality – Available as a genuine Walbro K20-WAT service kit, ensuring correct fit, fuel-resistant materials, and reliable performance . Aftermarket alternatives from brands like QAZAKY and Hipa also offer cost-effective solutions .
Wide Application Compatibility – Designed for Walbro WA and WT series carburetors . Fits an extensive range of STIHL chainsaws including 021, 023, 025, MS210, MS230, MS240, and MS250 . Also compatible with Echo, Husqvarna, Jonsered, Homelite, and Poulan models .
Technical Specifications
| # | Parameter | Specification |
|---|---|---|
| 1 | Kit Reference | K20-WAT |
| 2 | OEM Cross-Reference | 615-463, 740-00150, 946-00209, 530069668 |
| 3 | Carburetor Compatibility | Walbro WA and WT series |
| 4 | Material | Fuel-resistant rubber, plastic, and steel components |
| 5 | Kit Contents | Gaskets, diaphragms, inlet needle (two lengths), metering lever, pin, spring, welch plug, fuel strainer |
| 6 | Compatible STIHL Models | 009, 010, 011, 012, 017, 021, 023, 024, 025, 026, MS210, MS230, MS240, MS250, MS260 |
| 7 | Compatible Echo Models | CS260W, CS270W, CS301, CS341, CS350T, CS510, CS3000, CS3400, CS3450, CS3900, CS4000, CS4400 |
| 8 | Compatible Husqvarna Models | 33, 36, 39, 40, 41, 45, 49, 50, 51, 55, 132, 136, 141, 244R, 245R, 335, 338 |
| 9 | Typical Kit Weight | Approx. 14g |
| 10 | Package Contents | 1 set of diaphragms, gaskets, and internal components |
Quality and Craftsmanship Details
Products Package
About Us
As a premier garden machinery parts supplier, Jiaxing Norsun Trading Co., Ltd. bridges global distributors with over 100 vetted China manufacturers. We streamline your B2B supply chain through strict quality control, flexible production, and factory-direct wholesale pricing. Partner with us for reliable, high-volume sourcing of precision-engineered outdoor power equipment components.
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FAQ
Q: How do I confirm this kit fits my MS250 carburetor?
A:Check your carburetor model number stamped on the carburetor body. The K20-WAT kit fits Walbro WA and WT series carburetors . Alternatively, confirm your chainsaw model (MS250, MS230, MS210, 021, 023, 025) against the compatibility list above .
Q: What is the difference between OEM and aftermarket kits?
A: Genuine Walbro K20-WAT kits offer factory-spec reliability and are recommended for professional use . High-quality aftermarket kits from QAZAKY, Hipa, and other brands provide a cost-effective alternative for routine maintenance, with many reporting excellent results on MS250 saws
Q: How long does a carburetor rebuild take?
A: Typical installation time is approximately 15-20 minutes, including thorough cleaning of the carburetor prior to installing replacement parts. Basic hand tools and carburetor cleaner are required .
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