Thermostat Cover Gasket – Fits Mercury Marine 200-300 HP (Replaces 27-850318, 27-8503181) 170-350HP Skeeter: Widely installed in bass

Skeeter: Widely installed in bass boat models featuring livewell systems that utilize the listed OEM part number

Installation Type: Mechanical

351 Various 4-Stroke D5MZ8502 Ilmor 5

including 4-cylinder

and we can help confirm the correct fitment

Thermostat Cover Gasket – Fits Mercury Marine 200-300 HP (Replaces 27-850318, 27-8503181) 170-350HP Skeeter: Widely installed in bassProduct Details This Thermostat Cover Gasket Fits Mercury Marine 200 300 HP Outboard Motors ensures a proper seal for your engine's cooling system. It is designed for a wide range of Mercury Marine V6 outboard engines from 200 HP to 300 HP, including 2. 5L and 3. 0L models, as well as 250 HP SportJet DFI Jet Drives. This part directly replaces Mercury Marine part numbers 27 850318 and 27 8503181, Sierra 18 3675, and GLM 516 39, providing a reliable