Sierra 18-2566 - Water Pump Face Plate-to-Cover Gasket
Sierra 18-2566 - Water Pump Face Plate-to-Cover Gasket
Sierra
Low Stock: 1 left
Couldn't load pickup availability
Sierra 18-2566 - Water Pump Face Plate-to-Cover Gasket
When the water pump service diagram calls for Sierra 18-2566, this replacement gasket addresses the face-plate-to-water-pump-cover joint. That position is explicitly identified in the Sierra 18-2626 kit's component list, helping distinguish it from the separate pump-base and gear-housing gaskets. Match the required gasket reference to the installed pump before ordering rather than selecting by appearance alone.
Part Specifications
- Part Number: 18-2566
- Component: Water pump impeller-service gasket
- Listed Position: Face plate to water pump cover
- Related Kit: Listed among the contents of Sierra 18-2626 lower unit seal kit
For a broader sealing job, review the Sierra 18-2626 lower unit seal kit, which explicitly includes gasket 18-2566. Confirm the kit's complete application separately; inclusion of this gasket does not establish universal interchangeability.
Confirm Fitment Before Ordering
Use the parts diagrams available on our website to identify the correct gasket and its position in the pump assembly. Alternatively, send us your engine or drive model and serial number by email, text or live chat, and we'll confirm fitment before you order; include details of a replacement lower unit or pump if applicable.
Additional Information
- Vendor: Sierra
- Part Number: 18-2566
Installation Notes
Refer to the applicable engine or drive service manual for gasket selection, mating-surface requirements, assembly and specified cooling-system checks.
Frequently Asked Questions
Q: Where is 18-2566 used in the pump assembly?
A: The related Sierra 18-2626 kit lists it as the face-plate-to-water-pump-cover gasket, distinct from the kit's pump-base and gear-housing gaskets.
Q: Is an impeller included with this gasket listing?
A: This listing identifies a gasket, not an impeller or complete water pump repair kit.
Q: Is this gasket included in a larger seal kit?
A: Yes. Sierra 18-2626 explicitly lists 18-2566 among its contents. Verify the complete kit's application before choosing it for a broader repair.
Q: Are dimensions, material or a model-year range confirmed?
A: Those specifications are not established for this listing. Match the required gasket number and installed pump assembly rather than assuming fitment from shape or engine brand.
Q: Can I substitute another gasket from the same pump kit?
A: Sharing a kit does not make different gasket positions interchangeable. Use the part specified for the face-plate-to-cover joint in the applicable diagram.
! Compatibility references are provided for informational purposes only and do not constitute a fitment guarantee. Part numbers, application listings, and "replaces" cross-references are based on manufacturer data and are intended as a starting point for identification — not a guarantee of fit for your specific engine, hull, or installation.
Buyer is solely responsible for verifying compatibility with their engine model, serial number, model year, and trim configuration before purchase. If you are unsure whether this part fits your application, contact MacombMarineParts.com before you buy — we're available via text, email, or online chat to help verify compatibility for your specific application.
MacombMarineParts.com is not liable for parts ordered based on assumed fitment. Returns due to buyer-selected incorrect fitment are subject to our standard return and restocking fee policies.