Impeller Drive Sleeve – Fits Kohler Marine Generators 4EF/5E/6EF/7.3E Series (Replaces Kohler 359448, Sherwood G8001)
Impeller Drive Sleeve – Fits Kohler Marine Generators 4EF/5E/6EF/7.3E Series (Replaces Kohler 359448, Sherwood G8001) is backordered and will ship as soon as it is back in stock.
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Impeller Drive Sleeve – Fits Kohler Marine Generators 4EF/5E/6EF/7....
Impeller Drive Sleeve – Fits Kohler Marine Generators 4EF/5E/6EF/7.3E Series (Replaces Kohler 359448, Sherwood G8001) is backordered and will ship as soon as it is back in stock.
Product Details
This is a high-quality aftermarket Kohler 359448 Impeller Drive Sleeve, designed for use on Kohler marine generators. It is a critical component that connects the seawater pump shaft to the generator, ensuring proper cooling system function. This sleeve is compatible with models in the 4EF, 5E, 6EF, and 7.3E series.
This part is a direct replacement for Kohler 359448 and Sherwood G8001.
- Installation involves connecting the seawater pump shaft to the generator spline.
- Made from durable black rubber to withstand the marine environment.
- Designed for use with the Kohler Impeller Kit 359978 and seawater pump GM28487.
Part Number Matrix
Use this matrix to confirm equivalent references across OEM and aftermarket.
| Brand | Part Number | Notes |
|---|---|---|
| Kohler | 359448 | |
| Sherwood | G8001 | Seawater pump component |
Engine & Model Compatibility
Confirm your engine model/year in the table below.
For Kohler Marine Generators: This sleeve fits a wide range of models that utilize the GM28487 seawater pump.
| Brand | Model | OEM Part No. | Notes |
|---|---|---|---|
| Kohler | 4EF | 359448 | Used with seawater pump GM28487 |
| Kohler | 4EFCD | 359448 | Used with seawater pump GM28487 |
| Kohler | 4EFKD | 359448 | Used with seawater pump GM28487 |
| Kohler | 5E | 359448 | Used with seawater pump GM28487 |
| Kohler | 5ECD | 359448 | Used with seawater pump GM28487 |
| Kohler | 5EKD | 359448 | Used with seawater pump GM28487 |
| Kohler | 6EF | 359448 | Used with seawater pump GM28487 |
| Kohler | 6EFCD | 359448 | Used with seawater pump GM28487 |
| Kohler | 6EFKD | 359448 | Used with seawater pump GM28487 |
| Kohler | 7.3E | 359448 | Used with seawater pump GM28487 |
| Kohler | 7.3ECD | 359448 | Used with seawater pump GM28487 |
| Kohler | 7.5EKD | 359448 | Used with seawater pump GM28487 |
| Kohler | 8EFKD | 359448 | Used with seawater pump GM28487 |
| Kohler | 10EKD | 359448 | Used with seawater pump GM28487 |
Technical Specs
- Product Type
- Seawater Pump Drive Sleeve
- Installation
- Connects seawater pump shaft to generator
- Connection
- 8 Splines
- Housing Material
- Rubber
- Housing Color
- Black
- Dimensions
- Overall Length: 0.865" (22mm); Outside Diameter: 1.14" (29mm)
- Other Technical Attributes
- Used with Kohler Impeller Kit 359978
What’s in the Box
- 1 x Sleeve Drive (359448)
Installation Notes
- Ensure the engine is completely off and has cooled down. Close the corresponding seacock to stop water flow.
- Carefully drain the seawater pump assembly to remove any remaining water.
- Remove the seawater pump's end cover and take out the flexible impeller.
- Detach the pump assembly to access the drive sleeve located between the pump shaft and the generator.
- Slide the old, worn drive sleeve off the splined shafts. Clean the shafts if necessary.
- Align the new drive sleeve with the splines on both the generator and pump shafts and slide it into position.
- Re-install the seawater pump assembly, ensuring a secure fit.
- Insert the impeller (lubricate if necessary) and securely fasten the pump cover.
- Open the seacock to restore water supply.
- Start the engine and immediately check for any leaks around the pump and verify strong water flow from the exhaust.
Troubleshooting & FAQ
How do I know if the drive sleeve needs replacement?
Common signs of a failing drive sleeve include a rattling or chattering noise from the seawater pump area, a noticeable reduction or complete loss of water flow from the exhaust, or engine overheating alarms. A visual inspection will often reveal stripped or severely worn splines on the old sleeve.
What causes this drive sleeve to fail?
Failure is typically due to normal wear and tear over thousands of operating hours. However, it can be accelerated by pump misalignment, shaft vibration, or sudden torsional stress caused by an impeller blockage or a seized pump.
Is this part the same as the impeller?
No. This drive sleeve is a coupler that transfers rotational power from the generator to the seawater pump. The impeller is the flexible, vaned rubber part inside the pump housing that actually moves the water. This sleeve is used with impeller kit 359978.
Can I install this part myself?
While installation can be performed by individuals with strong mechanical skills, it is a critical cooling system component. For safety and to prevent engine damage, professional installation is highly recommended.
How often should I replace this sleeve?
There is no manufacturer-specified replacement interval. It is best practice to inspect the sleeve for wear, cracks, or loose fit whenever you are servicing the seawater pump or replacing the impeller.
OEM vs. Aftermarket?
This listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.
Shipping speed & cost?
We ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.
Warranty & returns?
Covered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused & in original condition). See our policy page or reach out for instructions.
Safety & Important Info
- Verify images/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.
- This is an aftermarket replacement, not an OEM component.
- Professional installation is recommended for safety and performance.
About Sea Sierra
- Pro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.
- Fast Global Fulfillment — Free standard delivery to most regions in 5–15 days.
- Manufacturer-Direct Value — Fair pricing without compromising on materials or QC.
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