Generator Pump Drive Sleeve – Fits Kohler Marine Generators 4EF, 4EFCD, 5E, 5ECD, 6EF, 6EFCD, 7.3E, 7.3ECD (Replaces Kohler 359448)

Generator Pump Drive Sleeve – Fits Kohler Marine Generators 4EF, 4EFCD, 5E, 5ECD, 6EF, 6EFCD, 7.3E, 7.3ECD (Replaces Kohler 359448)

This seawater pump drive sleeve connects the seawater pump shaft to the generator engine on Kohler marine generators. It provides a secure, splined connection, ensuring reliable operation of your raw water cooling system. Compatible with a wide range of Kohler marine generator models, this part is designed for a direct fit.

This sleeve is a direct replacement for Kohler part number 359448.

• Installation Method: Direct Connection
• Housing Material: High-Durability Plastic
• Included Components: 1 x Generator Pump Drive Sleeve

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

• 1 x Generator Pump Drive Sleeve (359448)

Installation Guide

1. Ensure the generator is turned off and the seacock is closed.
2. Disconnect the power source to prevent accidental starting.
3. Loosen the hose clamps and remove the inlet and outlet hoses from the seawater pump.
4. Carefully unbolt and remove the seawater pump assembly from the generator engine.
5. Slide the old, worn drive sleeve off the pump shaft or engine-side connection point.
6. Clean the splined areas on both the pump and engine connection to ensure a good fit.
7. Align the new drive sleeve and slide it into place, ensuring it fully engages with the splines.
8. Re-mount the seawater pump onto the generator and tighten the mounting bolts securely.
9. Reconnect the hoses to the pump and tighten the clamps to prevent leaks.
10. Open the seacock to allow water flow.
11. Reconnect the power, start the generator, and immediately check for proper water flow and any leaks around the pump.

Troubleshooting & FAQ

How do I confirm this fits my generator?

This drive sleeve is compatible with Kohler models such as 4EF, 5E, 6EF, 7.3E and their variants as listed in the compatibility table. It is a direct replacement for Kohler part number 359448. Cross-reference your generator model and original part number to ensure a match.

What are the signs of a failing drive sleeve?

Common symptoms include a noticeable reduction in cooling water output, generator overheating alarms, or a grinding/whirring noise from the pump area. The internal plastic splines can wear out, causing the pump to slip and fail to turn at the correct speed.

How often should I replace it?

Replacement interval depends on usage and conditions. It is recommended to inspect the drive sleeve for visible wear, cracks, or stripped splines whenever you perform routine maintenance on the seawater pump, such as replacing the impeller.

OEM vs. Aftermarket?

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.

How fast do you ship and how much does it cost?

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.

What is your warranty and return policy?

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.