Sherwood 18000K Impeller Kit with Gasket
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The Sherwood 18000K Impeller Kit with Gasket is a complete raw water pump service kit designed to restore proper cooling system performance in marine engines equipped with Sherwood 18000 series pump assemblies. This kit includes a precision-molded neoprene impeller along with the required gasket and sealing components for a complete pump service.
The impeller is responsible for circulating seawater through the engine cooling system. Over time, the flexible vanes can wear, harden, or crack, reducing efficiency and increasing the risk of overheating. Replacing the impeller and gasket together ensures proper sealing and consistent cooling performance, helping protect your engine from costly damage.
This kit is widely used across Sherwood pump-equipped marine engines, making it an essential maintenance item.
Key Features
- Complete Sherwood impeller service kit with gasket
- Marine-grade neoprene rubber construction
- Flexible multi-blade impeller design
- Precision-molded for OEM fit and performance
- Includes pump cover gasket and sealing components
- Ensures proper sealing and cooling system efficiency
Engine Compatibility
Sherwood Pump Compatibility (Primary Fitment)
Fits Sherwood 18000 series raw water pumps, including:
- G1801
- G1804
- G1805
- G1806
- G18061-01
- G1807
- G18071-01
- G1808
- G18081-01
- G1810 / G1810-01
- G1811-01
- G1814-01 / G1814X
- G1815-01
- G1816-01
Engine Compatibility
Caterpillar Marine Engines
Commonly used on:
- CAT 3176
- CAT 3196
- CAT 3406
- CAT 3406C
- CAT 3406E
- CAT C12
- CAT C15
- CAT C18
Cummins Marine Engines
- Cummins QSM11
OEM Pump / Engine Cross-Reference Numbers
Caterpillar Part Numbers
- 030-1160
- 100-6441
- 1095324
- 1095327
- 112-6177
- 123-0471
- 123-0500
- 123-0492
- 1239785
- 131-8272
- 196-8895
- 197-1328
- 201-0956
- 2820683
Cummins Cross Reference
- 3349392
Pump Shaft / Fitment Specs (Important for Matching)
- Shaft Diameter: 15/16" (23.8 mm)
- Hub Type: 14-tooth spline
- Blade Count: 12 blades
- Diameter: ~3-3/4" (95 mm)
- Width: ~4" (102 mm)
Important Fitment Notes
- Fits only Sherwood 18000-series pumps
- Not interchangeable with:
- 17000 series
- 08000 / 10077 series
- Must match:
- Spline count (14-tooth)
- Shaft size (15/16")
💡 Parts Desk Insight
The 18000K is a heavy-duty impeller used on large displacement diesel engines (CAT & Cummins)—if you’re working on a 3176/3406/QSM11 platform, this is one of the most common service kits you’ll see. The biggest mistake is confusing it with 17000K—they look similar but are completely different sizes 👍
Alternate / Superseded Part Numbers
OEM Cross References
- Sherwood: 18000K
Aftermarket Cross References
- JMP: 7700-01K (verify fitment)
- Sierra: 18-3088 (verify application)
Shipping
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
💡 Parts Desk Insight
If you're replacing a Sherwood impeller, always replace the gasket at the same time. Reusing an old gasket is one of the most common causes of pump leaks after service 👍
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.