Sherwood 18000K Impeller Kit with Gasket
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Sherwood 18000K Impeller Kit with Gasket is a complete raw water pump service kit for Sherwood 18000-series pump assemblies. It’s designed to restore proper seawater circulation for engine cooling by replacing the neoprene impeller and the pump gasket together.
Key Features
- Complete Sherwood 18000-series impeller service kit with gasket
- Neoprene impeller built for marine raw-water pumping
- Multi-blade impeller design intended to restore cooling performance
- Includes gasket/sealing components for proper pump sealing during service
- Helps reduce the risk of reduced flow and overheating from worn or deteriorated impellers
Product Compatibility
- Sherwood 18000-series raw water pumps (impeller kit application)
- Marine engine cooling systems using Sherwood 18000-series pump assemblies
- Commonly serviced on large diesel platforms equipped with Sherwood 18000 pumps
Product Details
- Product Type: Impeller Kit
- Impeller Kit Part Number: 18000K
- Impeller Diameter: 3-3/4" (95 mm)
- Impeller Blade Count: 12 blades
- Impeller Keyway/Spline: 14-tooth spline
- Impeller Shaft Diameter: 15/16" (23.8 mm)
- Impeller Width: ~4" (102 mm)
- Kit Includes: impeller + gasket (and sealing components as part of the kit per kit description)
- Application Notes: Fits only Sherwood 18000-series pumps; not interchangeable with Sherwood 17000 series or 08000 / 10077 series pump families
- Fitment-critical checks: confirm 14-tooth spline and 15/16" shaft size before installation
- For service: replacing the impeller and gasket together helps maintain correct pump sealing and cooling efficiency
Parts Desk Insights
Best Use Case: Best for routine raw-water pump service when you’re troubleshooting reduced cooling performance, or when the existing impeller is worn, hardened, cracked, or no longer pumping effectively.
Common Issues: The most common post-service issue is pump leaks from using mismatched or reused sealing surfaces—replace the gasket when installing a new impeller, and verify correct mating surfaces during reassembly.
Related Products & Accessories
Browse related Impeller Kit to complete the installation.
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 1-3 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.