5036908 Water Pump Repair Kit for Johnson Evinrude 25HP | JLM Marine

5036908 Water Pump Repair Kit for Johnson Evinrude 25HP | JLM Marine

This comprehensive service kit is engineered for Johnson Evinrude 25HP outboard engines (2006-2007). It consolidates all essential maintenance components into one package, streamlining your routine service and ensuring reliable operation on the water.

Designed as a direct replacement for OEM part number 5036908, this kit provides everything needed for a complete water pump rebuild plus critical cooling, filtration, and lubrication system maintenance—ideal for seasonal servicing or preemptive repairs.

• Includes water pump repair kit, thermostat, fuel filter, oil filter, drain screw gaskets, and gear oil pump
• Fits Johnson Evinrude 25HP outboards from 2006 to 2007
• Complete service solution in one convenient package

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 Johnson/Evinrude owners, here's a guide to help you identify your engine's serial/model: Johnson/Evinrude Serial Number Guide.

Technical Specifications

Package Contents

This comprehensive service kit includes the following components:

• 5036908 Water Pump Repair Kit × 1
• 5036226 Thermostat × 1 View Part →
• 5035974 Fuel Filter × 1 View Part →
• 5031411 Oil Filter × 1 View Part →
• 5030071 Drain Screw Gasket × 3
• 24OP149 Gear Oil Pump × 1

Installation Guide

1. Preparation: Disconnect the fuel line and remove the engine cowling. Gather necessary tools including screwdrivers, socket set, and a drain pan.
2. Drain fluids: Remove the drain screw and drain all gear oil into the pan. Replace the drain screw gasket with one of the three new gaskets provided.
3. Remove lower unit: Disconnect shift linkage and unbolt the lower unit from the mid-section. Carefully separate the lower unit.
4. Replace water pump: Remove the old water pump housing and impeller. Install the new water pump repair kit components following the manufacturer's torque specifications.
5. Install thermostat: Remove the old thermostat housing cover and replace the thermostat with the new unit (5036226). Ensure proper sealing with a new gasket.
6. Replace fuel filter: Locate the inline fuel filter and replace it with the new filter (5035974). Ensure fuel line connections are secure and leak-free.
7. Replace oil filter: Remove the old oil filter (5031411) and install the new one. Hand-tighten, then turn an additional half-turn.
8. Reassemble lower unit: Reinstall the lower unit to the mid-section, reconnect shift linkage, and torque all mounting bolts to specification.
9. Refill gear oil: Using the provided gear oil pump (24OP149), refill the lower unit with the correct marine gear oil until it flows from the top vent hole. Install the second drain screw gasket.
10. Final checks: Reinstall the engine cowling and reconnect the fuel line. Inspect all connections for proper seating and tightness.
11. Test run: Start the engine in a test tank or on-water and verify water flow from the tell-tale. Check for any leaks around the water pump, thermostat housing, and fuel connections.
12. Post-installation: Allow the engine to reach operating temperature and recheck all fluid levels. Monitor performance during the first few outings.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my specific Johnson Evinrude engine?
A: Verify that your engine is a 25HP model manufactured between 2006 and 2007. Cross-reference your original part number (5036908) with the kit, and use the Johnson/Evinrude serial number guide linked above to confirm your engine's year and model.

Q: How often should I replace the water pump and service components?
A: Water pump impellers should typically be replaced every 2-3 years or 200-300 hours of operation, whichever comes first. Thermostats, fuel filters, and oil filters are generally serviced annually or as part of major maintenance intervals.

Q: What are the signs that my water pump needs replacement?
A: Common symptoms include weak or no water flow from the tell-tale, engine overheating, steam from the engine, or reduced performance. If you notice any of these signs, inspect and replace the water pump immediately.

Q: Can I install this kit myself or do I need a professional?
A: If you have mechanical experience and the proper tools, DIY installation is possible by following the steps outlined above. However, professional installation is recommended to ensure proper torque specifications, alignment, and system integrity.

Q: What's the difference between this aftermarket 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.