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Ships within 48 hours · Estimated delivery Sep 27 - Oct 2
Verify all images and specifications against your original part before purchase
Do not spray cleaner on non-metal parts
based on the provided compatibility data
It is engineered to restore cooling system performance and prevent engine overheating
Mark the positions for the four mounting holes on the plate
Marine Thermostat – Fits Yamaha F300/F350 4-Stroke V8 (Replaces 6AW-12411-00-00, 18-3634) 140-370HP Verify all images and specificationsProduct Details This is a direct replacement Marine Thermostat for Yamaha F300 F350 4 Stroke V8 Outboards, specifically designed to fit 300HP and 350HP V8 engines manufactured between 2007 and 2018. It maintains the correct engine operating temperature for optimal performance and fuel efficiency. It serves as a direct replacement for Yamaha part number 6AW 12411 00 00 and Sierra part number 18 3634. Engineered for direct OEM replacement fitment.
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