Sherwood 26000K Impeller Kit – G2600 Raw Water Pump Service Kit
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The Sherwood 26000K is a heavy-duty flexible impeller service kit for compatible Sherwood 26000-series raw-water pumps. Its large 12-blade neoprene impeller uses a 10-tooth splined hub and is designed to maintain high-volume cooling-water flow in large marine engine installations. The kit includes the replacement impeller, gaskets, O-rings and service instructions.
Key Features
- Sherwood manufacturer part number: 26000K
- Distributor SKU: 762-26000K
- Neoprene flexible impeller
- 12 flexible vanes
- Outside diameter: 3-3/4 inches / 95 mm
- Width: 3-1/8 inches / 80 mm
- Drive connection: 10-tooth spline
- Approximate shaft size: 25 mm
- Maximum published neoprene operating temperature: 130°F
- Kit includes impeller, gasket, O-ring and technical service guide
- UPC: 734943239240
Pump Compatibility
Confirmed Sherwood pump applications include:
- Sherwood G2601X (obsolete, replaced by G2603X)
- Sherwood G2603X
- Other Sherwood 26000-series pumps specifically calling for impeller kit 26000K
Engine Compatibility
The strongest documented engine association is with selected Cummins marine diesel cooling systems using Cummins impeller reference 3972366. Application references commonly associate this impeller with certain Cummins QSC 8.3 and QSL 9.0 installations equipped with Sherwood G2600-series raw-water pumps. Exact engine fitment should be verified from the installed pump model and engine cooling-system diagram.
Fitment Notice
Do not select this impeller by engine make or displacement alone. Confirm that the installed pump requires:
- Sherwood 26000K
- 3-3/4-inch / 95 mm outside diameter
- 3-1/8-inch / 80 mm width
- Twelve flexible blades
- 10-tooth splined hub
- Approximately 25 mm shaft size
The 26000K shares its 95 mm diameter and 10-tooth spline with Sherwood 29000K, but the 29000K is four inches wide. Confirming the impeller width is essential before ordering.
When This Part Needs Replacement
Replace the impeller when:
- Raw-water output becomes weak or intermittent
- Engine temperature begins rising above normal
- Cooling-system or exhaust-temperature alarms activate
- The blades are cracked, torn, hardened or permanently bent
- Pieces are missing from the impeller
- The splined hub is worn or slipping
- The pump has operated without an adequate water supply
- The pump has ingested sand, silt or other debris
- The scheduled cooling-system service interval has been reached
A damaged impeller may continue rotating while producing substantially reduced cooling-water flow.
Installation Notes
Before installation:
- Shut down the engine and isolate the starting system
- Close the raw-water seacock
- Remove the pump cover and existing sealing components
- Use the correct Sherwood impeller puller for the 26000-series pump
- Recover all broken blade fragments from the pump and downstream cooling circuit
- Inspect the cover plate, cam, housing and shaft splines
- Lubricate the new impeller with glycerine, soapy water or another approved rubber-safe lubricant
- Align the 10-tooth splines carefully
- Install the supplied gasket and O-ring
- Reassemble the pump according to the Sherwood technical guide
- Reopen the seacock and confirm strong cooling-water flow before operating under load
Never operate a flexible impeller pump dry.
Alternate / Cross-Reference Part Numbers
- Sherwood: 26000K
- Distributor SKU: 762-26000K
- Sherwood impeller-only reference: 26000
- Sherwood alternate format: 26000K-SHW
- Cummins: 3972366
- JMP Marine: 7606-01K
- Replacement reference: EMP 47-47290
- UPC: 734943239240
Parts Desk Insight
The most important distinction is the 3-1/8-inch width. Sherwood 26000K and 29000K both use a 3-3/4-inch diameter, 12 blades and a 10-tooth spline — but they are not interchangeable because the 29000K is four inches wide. Always measure the old impeller width or pull the pump model number (G2601X or G2603X) before ordering. For Cummins QSC/QSL applications, cross-check against Cummins 3972366 to confirm the correct kit.
Compatible & Related Products
Other Sherwood impeller kits, pullers and pump accessories available at Marisol Marine:
- Sherwood 29000K Impeller Kit – Large Raw Water Pump Service Kit
- Sherwood 27000K Impeller Kit – P270 Raw Water Pump Service Kit
- Sherwood 18000K Impeller Kit – Raw Water Pump Service Kit
- Sherwood 17000K-SHW Raw Water Pump Neoprene Impeller Kit
- Seachoice 17781 Impeller Puller
- Sherwood Water Pump Cam Alignment Pin S21566
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3–4 business days.
Special-order items: timeline confirmed after order.
Returns & warranty
Returns & Satisfaction Guarantee
We stand firmly behind the quality of every product we sell. Your confidence matters to us — and we back it with a straightforward 30-Day Satisfaction Guarantee.
If you are not fully satisfied, you may request a return within 30 days of delivery. All returns must receive pre-approval prior to being sent back. Unauthorized returns will not be accepted.
To qualify for a return:
Item must be in new, unused condition
Product must be in its original packaging
All parts, components, hardware, manuals, and accessories must be included
Packaging must be undamaged and suitable for resale
Important:
Electronics are strictly inspected. No returns on open-box electronics. Exceptions may apply only with prior written approval. Any electronic unit that has been installed, powered, activated, or altered may not be eligible for return.
We are serious about product integrity — and equally serious about taking care of our customers. If there is ever a product issue, contact us immediately so we can make it right.
For return authorization, please contact our support team before shipping anything back.