Shop Mercury 4 stroke service kits for scheduled 100-hour and 300-hour outboard maintenance. These kits help boat owners and marine technicians service common maintenance items by interval instead of ordering each part separately.

Always confirm your Mercury horsepower, model family, and serial number before ordering a service kit.

Shop Mercury 4 Stroke Service Kit Categories

• Mercury 100 Hour Service Kits
• Mercury 300 Hour Service Kit

Mercury 100 Hour Service Kits

Mercury 100-hour service kits are normally used for routine annual maintenance. Most 100-hour kits include an oil filter and fuel filters. Some kits also include engine oil and lower unit gear lube, depending on the specific Mercury application and kit contents.

Mercury 300 Hour Service Kits

Mercury 300-hour service kits are usually more complete maintenance kits for a larger scheduled service interval. Many 300-hour kits include items for a full service such as thermostats, anodes, water pump kits, spark plugs, belts, gear lube, engine oil, filters, seals, and related service hardware.

Tip: Kit contents vary by horsepower, engine family, and serial number range. Always review the individual product listing before ordering.

Common Mercury Service Kit Items

• Oil filters and fuel filters
• Engine oil and gear lube when included
• Spark plugs and belts
• Thermostats and engine anodes
• Water pump kits and impeller service parts
• Drain gaskets, O-rings, seals, and service hardware

Frequently Asked Questions

What is the difference between a Mercury 100-hour and 300-hour service kit?

A 100-hour kit is generally used for routine annual service and commonly includes oil and fuel filter service parts. A 300-hour kit is typically a more complete service kit and may include thermostats, anodes, water pump parts, spark plugs, belts, oil, gear lube, and additional maintenance items.

Do Mercury service kits include engine oil and gear lube?

Some kits include engine oil and gear lube, while others do not. Always check the product listing for exact contents before ordering.

How do I choose the correct Mercury service kit?

Use your Mercury horsepower, model family, and serial number to match the correct service kit. Similar horsepower engines may use different filters, plugs, belts, or water pump parts.

Are Pro Marine Mercury service kits OEM specification?

Pro Marine provides quality OEM specification aftermarket products, along with genuine OEM Mercury maintenance parts where listed.

Helpful Links

• Mercury 4 Stroke Oil Change Kits
• Mercury Outboard Parts
• OEM Schematics

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