3GT-87500-0 Service Kit for Tohatsu MFS2 MFS2.5 MFS3.5C | JLM Marine

3GT-87500-0 Service Kit for Tohatsu MFS2 MFS2.5 MFS3.5C | JLM Marine

This comprehensive service kit is specifically designed for Tohatsu MFS2, MFS2.5, and MFS3.5C outboard engines. It consolidates all essential maintenance components into a single package, ensuring your engine receives complete care during scheduled service intervals.

Direct OEM Replacement: 3GT-87500-0. This aftermarket service kit delivers equivalent performance to the factory original while offering exceptional value for routine maintenance.

• Complete service solution with water pump repair kit, thermostat, fuel filter, drain gaskets, and gear oil pump
• Designed for small Tohatsu 4-stroke outboards (2–3.5 HP range)
• Simplifies maintenance by bundling all critical service components together

Part Number Cross-Reference

Use this table to confirm equivalent part numbers across OEM and aftermarket brands.

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

This service kit includes the following components:

• 3AB-87322-0 Water Pump Repair Kit × 1
• 3H6-01030-0 Thermostat × 1
• 369-02230-0 Fuel Filter × 1
• 332-60006 Drain Gasket × 2
• 24OP149 Gear Oil Pump × 1

Installation Guide

1. Preparation: Gather all necessary tools including screwdrivers, pliers, and a container for old fluids. Ensure the engine is off and cool before beginning work.
2. Fuel Filter Replacement: Locate the inline fuel filter on the fuel line. Disconnect the fuel line clips and replace the old filter (369-02230-0) with the new one, ensuring proper flow direction.
3. Water Pump Service: Remove the lower unit to access the water pump housing. Replace impeller, gaskets, and seals using the water pump repair kit (3AB-87322-0) provided.
4. Thermostat Replacement: Remove the thermostat cover on the cylinder head. Replace the old thermostat (3H6-01030-0) with the new unit, ensuring proper orientation.
5. Drain Old Gear Oil: Position the outboard vertically and remove the lower drain screw. Allow old gear oil to drain completely into your container.
6. Install New Drain Gasket: Replace the drain screw with a new drain gasket (332-60006) to ensure a proper seal.
7. Refill Gear Oil: Using the gear oil pump (24OP149), inject fresh gear oil through the lower fill hole until it reaches the upper vent hole. Install the upper vent screw with the second new drain gasket (332-60006).
8. Reassemble Components: Reinstall the lower unit, thermostat cover, and all removed parts in reverse order. Torque all fasteners to manufacturer specifications.
9. Prime Fuel System: Squeeze the primer bulb on the fuel line until firm to remove air from the system.
10. Test Run: Start the engine and check for proper water flow from the telltale indicator. Monitor for any fuel or gear oil leaks around service points.
11. Final Inspection: Allow the engine to reach operating temperature and verify smooth operation. Check all connections and seals one final time.

Troubleshooting & FAQ

Q: How do I confirm this service kit fits my Tohatsu engine?
A: Verify your engine model against the compatibility table above (MFS2, MFS2.5, or MFS3.5C). Cross-reference the OEM part number 3GT-87500-0 with your engine's service manual to ensure proper fitment.

Q: How often should I perform a complete service with this kit?
A: Tohatsu recommends complete service intervals every 100 hours of operation or annually, whichever comes first. More frequent service may be required in harsh saltwater environments or commercial applications.

Q: What are the signs that my water pump needs replacement?
A: Common symptoms include weak or absent telltale water flow, engine overheating, steam from the engine, or reduced power output. If you notice any of these signs, inspect and replace the water pump immediately.

Q: Can I install this service kit myself or do I need a professional?
A: If you have mechanical experience and the proper tools, installation is straightforward following the guide above. However, professional installation is recommended if you're unfamiliar with outboard maintenance to ensure safety and proper performance.

Q: What's the difference between this aftermarket service kit and the OEM version?
A: This listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.

Q: How fast do you ship and how much does it cost?
A: We offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.

Q: What is your warranty and return policy?
A: This product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused & in original condition); please see our policy page or reach out for instructions.

Important Notes

• Verify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.
• This product is an aftermarket replacement part and is not an OEM component.
• Professional installation is recommended to ensure safety and optimal performance.

Why Choose JLM MARINE?

• Quality Assured: As a trusted manufacturer for over 20 years, we supply top marine brands globally.
• Fast Global Shipping: Free delivery worldwide in 5–15 days.
• Direct from Manufacturer: Competitive pricing without compromising quality.