Sterndrive & Inboard Engine Maintenance Kits
MerCruiser Sterndrive & Inboard Engine Maintenance Kits
Shop genuine Mercury Marine 100-hour and 300-hour maintenance kits for MerCruiser sterndrive and inboard engines from 2.5L through 8.2L. Kit selection depends on the engine model, serial number, cooling system, fuel system, and drive application.
Choose Your Maintenance Kit Carefully
Do not select a kit by engine size alone. Engines of the same displacement may use different kits.
Maintenance kits are often listed in your engine's parts diagrams. Use your serial number to look up your MerCruiser engine here .
Still unsure after checking the diagrams and product description? Contact us with your complete engine serial number.
What Is Included in a MerCruiser Engine Service Kit?
Kit contents vary by engine application. Always review the individual product page for the exact components supplied with your kit.
100-Hour Maintenance Kits
Typically include:
- Engine oil filter
- Fuel filter
- Gearcase drain-plug seals
300-Hour Maintenance Kits
May include:
- Engine oil filter
- Fuel filter
- Gearcase drain-plug seals
- Spark plugs
- Serpentine or accessory belt
- Thermostat and gasket or seal
- PCV valve, where applicable
- IAC filter, where applicable
- Seawater-pump impeller kit for applicable Bravo engines
🔧 BAM Tip
RWC means raw-water cooled, also commonly described as seawater cooled or standard cooling. Do not order an RWC kit for a closed-cooled application unless the product description specifically confirms compatibility.
MerCruiser 100-Hour Engine Maintenance Kits
Select the engine family below to view the appropriate genuine Mercury Marine 100-hour service kit.
2.5L & 3.0L Engines
8M0147048
2.5L and 3.0L carbureted engines, 1987 and newer
8M0147049
3.0L MPI engines
4.3L Engines
8M0147050
4.3L carbureted engines without remote oil, 1993 and newer
8M0147051
GM V6 and V8 engines with a spin-on fuel filter, except V6 applications
without remote oil, 1977 and newer
4.5L, 5.0L, 5.7L, 6.2L & 8.2L Engines
8M0147052
Mercury-built 4.5L and 6.2L engines, 2014 and newer
8M0147053
GM V8 MPI engines with Gen III Cool Fuel, 2002 and newer
MerCruiser 300-Hour Engine Maintenance Kits
These more comprehensive kits include additional scheduled-maintenance items. Confirm the engine, cooling system, and drive application before ordering.
3.0L Engines
8M0147061
3.0L carbureted RWC engines, 2000 and newer
8M0147062
3.0L MPI RWC engines, 2008 and newer
4.3L Engines
8M0147063
4.3L carbureted Alpha RWC engines without remote oil, 1996 and newer
8M0147064
4.3L MPI Alpha RWC engines, 2002 and newer
8M0147065
4.3L MPI Bravo RWC engines, 2002 and newer
4.5L Engines
8M0147066
4.5L MPI Alpha RWC engines, 2014 and newer
8M0147067
4.5L MPI Bravo RWC engines, 2014 and newer
GM 5.0L, 5.7L & 6.2L MPI Engines
8M0147068
5.0L and 5.7L MPI Alpha RWC engines, 2002 and newer
8M0147069
GM 5.0L, 5.7L and 6.2L MPI Bravo RWC engines, 2002 and newer
Mercury 6.2L & 8.2L Engines
8M0147070
Mercury-built 6.2L MPI RWC engines, 2015 and newer
8M0147071
8.2L MPI engines, 2010 and newer
Looking for a Different Service Kit?
Need Help Finding the Correct MerCruiser Service Kit?
Send us your complete engine serial number and tell us whether the engine uses standard raw-water cooling or closed cooling.
Mercury-Mercruiser 8M0147062 Service Kit 300 Hour 3.0L MPI
Mercury-Mercruiser 8M0147064 Service Kit 300 Hour 4.3L MPI Alpha
Mercury-Mercruiser 8M0147065 Service Kit 300 Hour 4.3L MPI Bravo
Mercury-Mercruiser 8M0147066 Service Kit 300 Hour 4.5L MPI Alpha
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