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Genuine Yamaha OEM Carburetor Heater Control Unit Relay designed to regulate power to the carburetor heating element circuit. This electronic module helps reduce carburetor icing, venturi freezing, and throttle sticking during cold-weather riding by switching the heater system on when required. The unit includes a black resin electronic casing, single-bolt mounting tab, insulated wiring sheath, multi-pin block coupler receptacle, and bullet terminal ground connection for direct plug-and-play installation. Part Number & Fitment Specifications Yamaha Base Part Number: 4Y3-85590 OEM Suffix Codes: 4Y3-85590-M0, 4Y3-85590-M0-00 Interchange Codes: 413-M0, 4Y3-M0, 931 Compatible Models Yamaha XT350: 1985-2000 Yamaha TT250: 1986-1993 Yamaha DT100: 1983 Yamaha DT125 / DT125R: 1988-2004 Yamaha DT200R: 1989-1998 Yamaha DT50 / DT50LC: 1988-1995 Yamaha RZ350: 1984-1985 Yamaha RD350LC: 1986-1992 Yamaha YSR50: 1987-1992 Yamaha TZR250: 1987-1991
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used anti rust
Worldwide shipping available
Express shipping available at checkout
Estimated delivery: 2-5 business days
All items are carefully packaged for safe transit
Items can be insured — contact us for more information
30-day return policy on most items
Items must be in original condition and packaging
Contact support for return authorization
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Yes, all parts with OEM numbers are genuine manufacturer parts. Check the specifications tab for the OEM number.
We offer a 30-day return policy. Items must be in original condition. See the Shipping tab for complete details.
Yes, we ship to most countries worldwide. Shipping costs and delivery times vary by location.
Parts are sold separately. We recommend professional installation for safety and warranty purposes.
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