Mercury 8/9.9 Complete 300 Hour Service Maintenance Kit Standard Gearcase Only 25W-40 - 8M0120837 - S/N 0R042475 & Above

Want to know more about how your engine is breaking-in or wearing? Curious about whether or not your oil is doing its job? Want to be ahead of problems that may develop? PartsVu has partnered with Blackstone Laboratories and we are now offering professional oil analysis kits. Results are typically received in a few days via email. Shop now.

Mercury 8/9.9 Standard Gearcase Only 300 Hour Service Kit 8M0120837 

8 hp carb (209cc) 0R042475 & up.

9.9 hp carb (209cc) 0R042475 & up.

Kit Includes:

• Quart of 25W-40
• Quart of Gear Lube
• Fuel Filter
• Oil Drain Seal
• 2 Gearcase Drain Seals
• Thermostat
• Thermostat Gasket
• 2 Spark Plugs
• Impeller Kit
• Andode