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This is an authentic OEM Honda motorcycle engine coolant thermostat housing assembly, factory part number 19311-MBW-305. This structural cooling-system hub regulates engine operating temperature by housing the internal mechanical thermostat and directing coolant flow through the engine and radiator. Constructed from durable cast aluminum, it is designed to handle high heat, coolant pressure, and long-term exposure to engine fluids. The assembly includes main radiator hose outlets, auxiliary bypass spigots, and a threaded sensor port for the coolant temperature switch. Compatible Models Honda CBR600F4 — 1999, 2000 Honda CBR600F4i — 2001, 2002, 2003, 2004, 2005, 2006 This OEM thermostat housing is ideal for restoring proper cooling-system function and maintaining factory fitment on compatible Honda CBR600 models.
Please verify compatibility with your specific motorcycle model before purchasing.
Cleaning Status
partially_cleaned
Cleaning Notes
Used anti rust
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Estimated delivery: 2-5 business days
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Items can be insured — contact us for more information
30-day return policy on most items
Items must be in original condition and packaging
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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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