Mercury 8M0120837 300 Hour Maintenance Kit for 8-9.9hp FourStroke

Mercury 8M0120837 300 Hour Maintenance Kit for 8-9.9hp FourStroke

Mercury 8M0120837 is a 300 Hour Maintenance Kit that includes the parts needed to complete scheduled service on compatible Mercury 8-9.9hp FourStroke outboards. Packed in one convenient box, this kit helps simplify routine maintenance and makes it easier to service your engine using genuine Mercury replacement components.

Applications

Fits Mercury 8hp and 9.9hp FourStroke outboards. Application data specifies standard gearcase only, serial number 0R042475 and higher, while the long description lists carbureted and EFI outboards, serial number 0R042475 through 1R279944.

Shipping

This item ships as one complete maintenance kit.

Key Facts

Brand: Mercury Precision

Part Number: 8M0120837

Product Type: 300 Hour Maintenance Kit

Service Interval: 300 hour

Application: Fits Mercury 8hp and 9.9hp FourStroke outboards

Gearcase Fitment: Standard gearcase only

Serial Range: 0R042475 and higher

Additional Fitment Note: Long description lists carbureted and EFI outboards, serial number 0R042475 through 1R279944

Installation: Periodic maintenance can be performed using common shop tools

OEM Quality: Produced by Mercury Marine to original equipment manufacturer specifications

UPC: 745061004849

Country of Origin: JP

Packaged Length: 10.45 in.

Packaged Width: 6.65 in.

Packaged Height: 4.35 in.

Packaged Weight: 0.775 lb

What’s Included

Included: Fuel filter

Included: Oil drain seal

Included: Gear case seals

Included: Thermostat

Included: Thermostat gaskets

Included: 2 spark plugs

Included: Water pump impeller kit

Included: Unit anode

Service Notes

Confirm engine horsepower, serial number, and gearcase style before ordering to ensure proper fitment. Follow your owner’s manual for recommended maintenance procedures and service intervals when completing 300-hour service.