8M0120837 Aftermarket Mercury 9.9HP Carb (209cc) (0P325500-1R279944) (0R042475-1R279944) Service Kit | Sawley's Select Marine Parts

🔧 Product Description

Aftermarket Mercury 8-9.9HP Carburetted 209cc Standard Gearcase Service Kit - Kit Reference: 8M0120837

Mercury's 300-hour service package for standard-gearcase 8HP and 9.9HP carburetted 209cc FourStroke outboards. It includes the complete 47-803748K01 pump kit, ignition, fuel, thermostat, anode and drain-seal components.

⚙️ Key Features

• Application-specific major service package

• Exact serial-range separation prevents mixing incompatible fuel filters, thermostats or gearcase pump parts

• Includes engine and gearcase drain-plug sealing components where applicable

• Includes the correct spark-plug type and quantity for the listed engine family

• Water-pump components match the stated standard, BigFoot or Command Thrust gearcase

🔄 Supersession & Cross Reference

OEM Supersession Chain:

• 8M0120837 (complete standard-gearcase maintenance-kit reference)

• 47-803748K01 → Complete standard-gearcase water-pump kit

OEM / Related Numbers:

• 8M0120837

• 35-8M0157133

• 8M0204682

• 8M0119207

• 27-8M0214960

• 47-803748K01

• 97-823912

• 12-895146

• 8M0075255

Aftermarket / Verified Equivalents:

• Mercury/Quicksilver: 8M0120837

• Sawley's Select aftermarket-equivalent component package

Included Components:

• 1 × Fuel filter - 35-8M0157133

• 2 × Spark plugs - 8M0204682 / NGK DCPR6E

• 1 × Thermostat - 8M0119207

• 1 × Thermostat gasket - 27-8M0214960

• 1 × Complete water-pump kit - 47-803748K01

• 1 × Anode - 97-823912

• 1 × Engine-oil drain seal - 12-895146

• 2 × Gearcase drain seals - 8M0075255

Important Fitment Notes:

• Standard gearcase only; Command Thrust/BigFoot requires the dedicated Command Thrust package.

🚤 Compatibility

Commonly used on:

• Mercury 8-9.9HP Carburetted 209cc Standard Gearcase outboard service applications

Typically suits:

• Engine models:

• Mercury 8HP FourStroke carburetted standard gearcase

• Mercury 9.9HP FourStroke carburetted standard gearcase

• HP Range: 8HP-9.9HP

• Engine Type: 209cc carburetted inline-two four-stroke outboard

• Year Range: Serial-specific production group

• Serial Range: 0R042475-1R279944 and 0P325500-1R279944 where the standard gearcase is fitted

🔌 Function

The service kit groups the routine ignition, lubrication, fuel-system, cooling-system and gearcase consumables required for a major scheduled service. Replacing the listed components helps maintain reliable starting, correct operating temperature, clean fuel delivery, adequate cooling-water flow and secure engine and gearcase sealing.

Common signs service is due:

• Hard starting, rough idle or misfire from worn or fouled spark plugs

• Restricted fuel delivery or unstable engine speed from a contaminated filter

• Engine temperature runs high because the thermostat or water pump is deteriorated

• Low oil pressure, dirty engine oil or a restricted oil filter on four-stroke engines

• Water or lubricant leakage from reused drain-plug seals

• Reduced cooling-water discharge or damaged impeller vanes

📦 Condition

• Brand new aftermarket service kit

• New and unused components

• Supplied in manufacturer or equivalent protective packaging