Marine Thermostat – Fits Yamaha F300/F350 4-Stroke V8 (Replaces 6AW-12411-00-00, 18-3634) 140-370HP Mark the positions for the

Mark the positions for the four mounting holes on the plate

0 kW) and MDKD (6

Brand Part Number Notes Yamaha 90430-08003-00 Current OEM part

1 x Impeller Housing Cover (0338893)

and this kit is a confirmed replacement for both OEM part numbers

Marine Thermostat – Fits Yamaha F300/F350 4-Stroke V8 (Replaces 6AW-12411-00-00, 18-3634) 140-370HP Mark the positions for theProduct 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.