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This is an authentic OEM Yamaha motorcycle coolant overflow expansion reservoir tank. Molded from durable semi-translucent HDPE plastic, it allows quick visual checks of coolant levels and provides a direct factory-style fit. About This Product * Brand: Yamaha OEM * Part Type: Coolant Overflow / Expansion Reservoir Tank * Material: Semi-translucent HDPE plastic * Casting Stamp: 1WG * Function: Collects expanding radiator coolant as the engine heats up and returns it to the cooling system as the engine cools. * Features: Asymmetrical factory design, lower drainage spout, upper vent-line nozzle, and integrated mounting tabs. Compatible Models * Yamaha FZR600 / FZR600R Genesis / California Models — 1989–1999 * Yamaha FZR400 1WG Chassis Variant — 1988–1994 * Yamaha FZR500 — 1989–1993 Please compare the casting stamp, mounting points, and tank shape with your original part before purchase.
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used surface cleaner
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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