61N-W006A-00 Service Kit for Yamaha 25HP 30HP | JLM Marine

Service Kit for Yamaha 25HP 30HP Outboards – OEM Part Number 61N-W006A-00

This comprehensive service kit is designed for Yamaha 2-cylinder outboard engines including 25HP models (XM, XMH, VMH, VM, BMH) and 30HP models (GM, GMH, HMH, HWH) manufactured from 1993 to 2019. It is specifically suited for single carburettor models and provides all essential maintenance components in one convenient package.

This kit directly replaces OEM part number 61N-W006A-00, ensuring compatibility and reliable performance for routine maintenance and service intervals.

• Includes 14 critical service components: water pump assembly parts, fuel filter, thermostat, anode, gear oil pump, and fasteners
• Designed for single carburettor Yamaha 25HP and 30HP 2-cylinder models from 1993–2019
• Complete maintenance solution for water pump, cooling system, and fuel system service

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. For Yamaha owners, here's a guide to help you identify your engine's serial/model: Yamaha Serial Number Guide. You can also review exploded diagrams to verify part numbers: Yamaha Parts Diagrams & Catalog.

Technical Specifications

Package Contents

This service kit includes the following 14 components for complete maintenance:

• 61N-44322-00 – Cup, Insert × 1
• 6H4-44352-02 – Impeller × 1 (critical water pump component)
• 61N-44311-00 – Housing, Water Pump × 1
• 6L2-44367-00 – Seal, Water × 1
• 90280-03024 – Key × 1
• 93210-45161 – O-ring × 1
• 61N-44323-00 – Plate, Wear × 1
• 97095-06040 – Bolt × 4
• 61N-24560-00 – Fuel Filter × 1
• 6E5-12411-30 – Thermostat × 1
• 90430-08020 – Drain Gasket × 4
• 91490-30025 – Cotter Pin × 1
• 61N-45251-01 – Anode × 1
• 24OP149 – Gear Oil Pump × 1

Installation Guide

1. Disconnect the fuel line and remove the lower unit from the outboard engine following your service manual.
2. Remove the old water pump assembly by loosening the mounting bolts and carefully extracting the housing.
3. Clean all mating surfaces on the lower unit and driveshaft housing to ensure proper sealing.
4. Install the new water pump housing (61N-44311-00) onto the lower unit, ensuring proper alignment with the driveshaft.
5. Lubricate the new impeller (6H4-44352-02) with glycerin or soapy water, then install it into the housing with blades oriented correctly per rotation direction.
6. Place the insert cup (61N-44322-00) and wear plate (61N-44323-00) in their designated positions.
7. Install the key (90280-03024), water seal (6L2-44367-00), and O-ring (93210-45161) as specified in the assembly diagram.
8. Secure the water pump assembly using the four bolts (97095-06040), tightening to manufacturer's torque specifications.
9. Replace the fuel filter (61N-24560-00) by removing the old filter from the fuel line and installing the new one with proper orientation.
10. Install the new thermostat (6E5-12411-30) into the thermostat housing, replacing the drain gaskets (90430-08020) and securing with the cotter pin (91490-30025).
11. Attach the new anode (61N-45251-01) to the designated mounting location on the lower unit.
12. Reassemble the lower unit to the engine, refill with fresh gear oil using the included oil pump (24OP149), reconnect the fuel line, and test the cooling system flow.

Troubleshooting & FAQ

Q: How do I confirm this service kit fits my specific Yamaha engine?
A: Check that your engine is a 25HP (models XM, XMH, VMH, VM, BMH with single carburettor) or 30HP (models GM, GMH, HMH, HWH) 2-cylinder Yamaha built between 1993 and 2019. Verify your OEM part number matches 61N-W006A-00. You can use the Yamaha serial number guide or exploded parts diagrams linked above to confirm compatibility.

Q: How often should I replace the water pump impeller and perform this service?
A: Yamaha recommends inspecting the water pump impeller annually or every 100 hours of operation, whichever comes first. Replace the impeller if you notice cracking, missing blades, or reduced cooling system performance. The fuel filter and thermostat should also be replaced during routine maintenance intervals or if you experience overheating or fuel delivery issues.

Q: What are the signs that my water pump or cooling system needs service?
A: Common symptoms include weak water stream from the tell-tale outlet, engine overheating, steam from the engine cover, or alarm activation. If you notice reduced water flow or temperature gauge readings above normal, inspect and replace the impeller and associated components immediately to prevent engine damage.

Q: Does this kit include everything I need for a complete lower unit service?
A: This kit provides all major service components including the water pump assembly, impeller, seals, fuel filter, thermostat, anode, and gear oil pump. You may need additional lower unit gear oil (not included) and basic hand tools. Refer to your service manual for any additional gaskets or seals specific to your engine's configuration.

Q: Is this an OEM Yamaha service kit or an aftermarket replacement?
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.