5031745 Water Pump Repair Kit for Johnson Evinrude | JLM Marine

5031745 Water Pump Repair Kit for Johnson Evinrude | JLM Marine

This comprehensive water pump repair kit is specifically engineered for Johnson and Evinrude outboard engines rated 60–70 HP. It provides a complete maintenance solution for engines manufactured between 2001 and 2006, ensuring reliable cooling system performance and engine longevity.

This kit directly replaces OEM part number 5031745, delivering a cost-effective aftermarket alternative without compromising quality. The package includes essential components for a complete cooling system overhaul, including water pump repair components, thermostat, fuel filter, oil filter, drain screw gaskets, and a gear oil pump.

• Complete maintenance bundle with water pump repair kit, filters, and essential service components
• Covers critical cooling, fuel, and lubrication system components
• Professional-grade construction for reliable long-term performance

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 maintenance kit includes the following components:

• 5031745 – Water Pump Repair Kit ×1
• 5031758 – Thermostat ×1
• 5032323 – 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. Ensure the engine is cool and in a stable, upright position.
2. Access the Water Pump: Remove the lower unit by disconnecting the shift linkage and unbolting the mounting hardware. Carefully separate the lower unit from the mid-section.
3. Remove Old Water Pump: Unscrew the water pump housing bolts and remove the old impeller, liner, and gaskets. Clean all mating surfaces thoroughly.
4. Install New Water Pump Components: Lubricate the new impeller with marine grease and install it with blades oriented correctly (refer to rotation direction). Replace the liner, gaskets, and seals from the kit.
5. Replace Thermostat: Locate the thermostat housing, remove the old thermostat, and install the new 5031758 thermostat with a fresh gasket. Torque bolts to manufacturer specifications.
6. Replace Fuel Filter: Remove the old fuel filter (5032323) from the fuel line. Install the new filter with arrows pointing toward the engine to ensure correct fuel flow direction.
7. Replace Oil Filter: Drain the old gear oil, remove the old oil filter (5031411), and install the new filter. Replace the three drain screw gaskets (5030071) on drain and fill ports.
8. Install Gear Oil Pump: Attach the gear oil pump (24OP149) to the lower fill port. Pump fresh marine gear oil until it flows from the upper vent hole.
9. Reassemble Lower Unit: Reinstall the lower unit, aligning the shift linkage and water tube carefully. Torque all mounting bolts to specification.
10. Refill and Test: Reconnect the fuel line, refill cooling system if needed, and run the engine in a test tank or on-water. Check for proper water flow from the tell-tale and inspect for leaks.
11. Final Inspection: Verify all bolts are secure, no fuel or oil leaks exist, and the engine runs smoothly at idle and higher RPM. Replace the cowling.
12. Break-In: Run the engine gently for the first 10–15 minutes after service to allow new components to seat properly.

Troubleshooting & FAQ

Q: How do I confirm this kit fits my specific Johnson or Evinrude engine?
A: Cross-reference your engine's horsepower and year with the compatibility table above. Your engine should be a 60 HP (2002–2006) or 70 HP (2001–2006) model. You can also verify your engine's serial number using the Johnson/Evinrude Serial Number Guide to confirm the exact year and model.

Q: How often should I replace the water pump and perform this maintenance?
A: Most manufacturers recommend inspecting the water pump impeller annually and replacing it every 2–3 years or 200–300 hours of operation, whichever comes first. If you notice reduced water flow from the tell-tale, overheating, or visible impeller damage, replace immediately. Filters should be changed at least annually or per your engine's service schedule.

Q: What are the signs that my water pump or cooling system is failing?
A: Common symptoms include weak or no water discharge from the tell-tale (indicator stream), engine overheating alarms, steam from the powerhead, reduced performance, or difficulty starting. If you experience any of these, inspect the cooling system immediately to prevent serious engine damage.

Q: Can I install this kit myself, or do I need professional help?
A: If you have mechanical experience and the proper tools (including a service manual with torque specifications), you can install this kit yourself. However, the process requires careful disassembly of the lower unit and precise reassembly. If you're unsure, professional installation is strongly recommended to ensure safety and avoid damage.

Q: Does this kit include everything I need for a complete lower unit service?
A: This kit provides the water pump repair components, thermostat, fuel filter, oil filter, drain gaskets, and gear oil pump—covering the most critical maintenance items. You will need to supply marine gear oil and any additional gaskets or seals specific to your lower unit reassembly (such as shift shaft seals), which may not be included.

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.