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Home > Service & Oil Change Kits > Mercury 4 Stroke Service Kits

Mercury 4 Stroke Service Kits

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 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

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Mercury 40-60HP EFI 100 Hour Kit Serial 1C000001-Present

Mercury 40-60HP Service Kit With 10W30 Oil & Gear Lube

OEM Mercury 40-60HP EFI 100 Hour Service Kit With Oil

Mercury 40-60HP EFI 100 Hour Kit Serial 1C000001-Present

The Mercury 8M0232733-L 100 Hour Service Kit is a convenient maintenance package for Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher.

This kit includes the routine 100 hour service components along with Mercury 10W30 engine oil and gear lube, making it a complete option for scheduled maintenance.

Compatible Applications

Brand	Horsepower	Engine Type	Serial Range
Mercury	40HP	FourStroke EFI Outboard	1C000001 & Higher
Mercury	50HP	FourStroke EFI Outboard	1C000001 & Higher
Mercury	60HP	FourStroke EFI Outboard	1C000001 & Higher

Important Fitment Note:

This Mercury 100 hour service kit fits Mercury 40-60HP FourStroke EFI outboards with serial numbers 1C000001 and higher.

Always verify your engine serial number before ordering maintenance parts.

What is Included

Included Component	Application
Oil Filter	Engine oil filtration service
Low-Pressure Fuel Filter	Fuel system maintenance
High-Pressure Fuel Filter	Fuel system maintenance
Oil Drain Seal	Oil drain plug service
Gearcase Seals	Gear lube drain and vent screw service
Mercury 10W30 Engine Oil	Engine oil service
Mercury Gear Lube	Gearcase lubricant service

Oil & Gear Lube Included

Included Lubricants:

This kit includes Mercury 10W30 engine oil and gear lube for the 100 hour service.

Mercury 40-60HP FourStroke EFI engines use approximately 4 quarts of engine oil, or 1 gallon. The gearcase uses approximately 1 quart of gear lube.

Prefer to Choose a Different Oil?

Some customers prefer to choose a different Mercury oil type, such as Mercury 25W40, 10W30 Synthetic Blend, 25W40 Synthetic Blend, or 10W30 Full Synthetic.

If you want to select your own oil and gear lube separately, order the standard 100 hour service kit below.

Order 8M0232733 - Oil and Gear Lube Sold Separately

Optional Oil Choices

Oil Type	Product	Quantity Required
Mercury 10W30	Mercury 10W30 Engine Oil - Quart	4 quarts
Mercury 10W30	Mercury 10W30 Engine Oil - Gallon	1 gallon
Mercury 10W30 Synthetic Blend	Mercury 10W30 Synthetic Blend - Quart	4 quarts
Mercury 10W30 Synthetic Blend	Mercury 10W30 Synthetic Blend - Gallon	1 gallon
Mercury 10W30 Full Synthetic	Mercury 10W30 Full Synthetic - Gallon	1 gallon
Mercury 25W40	Mercury 25W40 Engine Oil - Quart	4 quarts
Mercury 25W40 Synthetic Blend	Mercury 25W40 Synthetic Blend - Quart	4 quarts
Mercury 25W40 Synthetic Blend	Mercury 25W40 Synthetic Blend - Gallon	1 gallon

Complete Your Service

What This Service Kit is Used For

The Mercury 8M0232733-L service kit is used for routine 100 hour maintenance on compatible Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher.

Routine maintenance helps support fuel system cleanliness, oil filtration, gearcase service, and long-term outboard reliability.

Key Features and Benefits

OEM Mercury 100 hour service kit
Fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards
For serial numbers 1C000001 and higher
Includes Mercury 10W30 engine oil
Includes gear lube for gearcase service
Includes oil filter, low-pressure fuel filter, and high-pressure fuel filter
Includes oil drain seal and gearcase seals
Standard 8M0232733 kit available for customers who prefer other oils
Pairs with 300 hour service kits and aluminum anode kit

Service Kit Details

Part Number: 8M0232733-L
Base Kit: 8M0232733
Application: Mercury 40-60HP FourStroke EFI Outboards
Serial Range: 1C000001 & Higher
Service Interval: 100 Hour Maintenance
Oil Included: Mercury 10W30 Engine Oil
Gear Lube Included: Yes
Engine Oil Capacity: Approximately 4 quarts / 1 gallon
Gear Lube Capacity: Approximately 1 quart

FAQ

What engines does this service kit fit?
This kit fits Mercury 40HP, 50HP, and 60HP FourStroke EFI outboards with serial numbers 1C000001 and higher.

Does this kit include oil and gear lube?
Yes. This kit includes Mercury 10W30 engine oil and gear lube.

What if I prefer a different oil?
Some customers prefer to choose their own oil. In that case, order the standard 8M0232733 kit and select your preferred Mercury oil separately.

How much oil does this engine use?
This engine uses approximately 4 quarts, or 1 gallon, of engine oil.

How much gear lube is required?
This application uses approximately 1 quart of gear lube.

Which 300 hour kit should I choose?
Choose the correct 300 hour kit based on your gearcase type: BigFoot / Command Thrust or standard gearcase.

Dealer Discounts & Store Policies

Dealer / Marine Industry Discounts

Are you a marine dealer, technician, boat builder, or industry professional? We offer dealer pricing for qualified marine businesses.

Apply for a Dealer Account

Shipping Policy

Free shipping on orders over $100 continental U.S.
Orders ship via UPS, USPS, and FedEx.
Orders received before 5:30 PM EST ship the same business day.
Typical delivery time is 1-5 business days.

30-Day Return Policy

Returns accepted within 30 days of delivery.
Maintenance kits must be new, unused, and in original packaging.
Opened oil and lubricants may not be returnable.
Return authorization is required before sending items back.

Need help with a return or order question?
Contact Us
Phone: 941-721-3000

Searchable Terms

8M0232733-L, 8M0232733, Mercury 40HP EFI service kit with oil, Mercury 50HP EFI service kit with oil, Mercury 60HP EFI service kit with oil, Mercury 40-60HP FourStroke EFI service kit, Mercury 40-60HP 100 hour kit with 10W30, Mercury 40HP 100 hour service kit, Mercury 50HP 100 hour service kit, Mercury 60HP 100 hour service kit, Mercury serial 1C000001 service kit, Mercury 1C000001 and higher maintenance kit, Mercury 40-60HP oil filter kit, Mercury fuel filter service kit, Mercury 10W30 oil service kit, Mercury gear lube service kit, 8M0090559, 8M0090559-L, 8M0113483, 8M0113483-L, 8M0107547, Mercury BigFoot 300 hour kit, Mercury Command Thrust 300 hour kit, Mercury standard gearcase 300 hour kit

Item#:

8M0232733-L

Cross Reference#:

8M0090558
8M0232733

Manufacturer Item:

8M0232733

Manufacturer:

Mercury Marine

Available:

In Stock

135.9700

Your Price:

131.89

Each

Qty:

Mercury V10 5.7L 350HP-425HP 6.44 Gearcase 300 Hour Service Kit With Oil

OEM Mercury 300 Hour Maintenance Kit With 25W50 Oil - Gear Lube Not Include

OEM Mercury 300 Hour Service Kit With Oil

Mercury 5.7L V10 350HP-425HP Verado 300 Hour Maintenance Kit

This OEM Mercury 300 hour service kit with oil is designed for Mercury 5.7L V10 350HP-425HP Verado outboards equipped with the 6.44 gearcase. It includes the major scheduled maintenance components along with Mercury 25W50 engine oil for complete engine oil service.

Important: This kit includes engine oil, but it does not include gear lube. Mercury V10 standard rotation and counter rotation gearcases require different gear lube quantities, so gear lube should be selected separately below.