3NV-87500-0 Maintenance Kit for Tohatsu MFS25C MFS30C MFS25D MFS30D MFS40A MFS50A | JLM Marine

3NV-87500-0 Maintenance Kit for Tohatsu MFS25C MFS30C MFS25D MFS30D MFS40A MFS50A | JLM Marine

This comprehensive maintenance kit is engineered to fit Tohatsu MFS25/30C, MFS25/30D, and MFS40/50A outboard engines, delivering essential service components in one convenient package. Whether you're performing routine maintenance or a full service interval, this kit ensures your engine runs smoothly and reliably.

Designed as a direct replacement for OEM part number 3NV-87500-0, this aftermarket kit includes all critical filters, gaskets, and tools needed for a complete maintenance cycle. It simplifies your service routine by bundling everything in one box, saving you time and effort.

• Includes oil filter, fuel filter, drain gaskets, and gear oil pump for complete service coverage
• Fits multiple Tohatsu MFS-series 4-stroke outboards from 25 HP to 50 HP
• All components meet or exceed OEM specifications for reliable performance

Part Number Cross-Reference

Use this table to confirm the OEM part number for this maintenance kit:

Compatible Engine Models

Confirm your engine model/year in the table below.

Technical Specifications

Package Contents

This maintenance kit includes the following components for a complete service:

• Oil Filter – 3BJ-07615-0 View Part → × 1
• Fuel Filter – 3AD-02230-0 View Part → × 1
• Oil Plug Drain Gasket – 3R3-07406-0 × 1
• Lower Unit Drain Gasket – 332-60006-0 × 2
• Gear Oil Pump – 24OP149 × 1

Installation Guide

1. Preparation: Ensure the engine is off and cooled down. Gather all kit components and verify against the package contents list.
2. Oil Change: Remove the oil drain plug using the correct wrench and drain the engine oil completely into a suitable container.
3. Replace Oil Drain Gasket: Install the new oil plug drain gasket (3R3-07406-0) onto the drain plug. Reinstall the plug and tighten to manufacturer specifications.
4. Replace Oil Filter: Remove the old oil filter (3BJ-07615-0) using an oil filter wrench. Lightly oil the gasket on the new filter before threading it on hand-tight, then snug an additional 3/4 turn.
5. Refill Engine Oil: Add the recommended quantity and grade of engine oil through the filler cap. Check the dipstick to confirm proper level.
6. Replace Fuel Filter: Locate the inline fuel filter (3AD-02230-0), clamp the fuel lines, and remove the old filter. Install the new filter with the arrow pointing toward the engine.
7. Lower Unit Service: Position the outboard vertically. Remove both the drain and vent plugs from the lower unit and allow old gear oil to drain completely.
8. Install Lower Unit Gaskets: Place new lower unit drain gaskets (332-60006-0) on both the drain and vent screws.
9. Refill Gear Oil: Using the included gear oil pump (24OP149), pump new gear oil into the drain hole until oil reaches the vent hole. Install the vent screw first, then the drain screw.
10. Inspect for Leaks: Start the engine and let it idle for a few minutes. Check all filter and plug locations for leaks.
11. Final Check: Re-check oil levels after running the engine. Top off if necessary and dispose of old fluids properly.
12. Record Service: Note the date and engine hours in your maintenance log for future reference.

Troubleshooting & FAQ

Q: How do I confirm this maintenance kit fits my Tohatsu engine?
A: Check the compatibility table above for your specific model (MFS25C, MFS30C, MFS25D, MFS30D, MFS40A, or MFS50A). You can also cross-reference the OEM part number 3NV-87500-0 in your engine's service manual or parts diagram.

Q: How often should I perform maintenance using this kit?
A: Tohatsu recommends replacing the oil filter and engine oil every 100 hours or annually, whichever comes first. The fuel filter and lower unit oil should be serviced at similar intervals or per your engine's maintenance schedule.

Q: What's the difference between this aftermarket kit and the OEM kit?
A: This aftermarket kit is manufactured to OEM specifications and includes the same component types (oil filter, fuel filter, gaskets, pump). The main difference is cost savings without sacrificing quality or performance.

Q: Can I install this kit myself or do I need a professional?
A: If you have basic mechanical skills and follow the installation guide, you can perform this maintenance yourself. However, professional installation is recommended if you're unfamiliar with outboard service procedures.

Q: What should I do if I notice metal particles in the drained lower unit oil?
A: Small amounts of metallic residue are normal during break-in or initial services. However, excessive metal shavings may indicate gear wear or damage—consult a marine technician for a thorough inspection before continuing operation.

Q: Is this an OEM or aftermarket part?
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.