Mercury MerCruiser Quicksilver Water Pump Spacer 888690
In stock items ship same or next day.
Free returns on all eligible orders
You have 30 days to request a return. All sale items are final sale.
Product Description
Mercury Quicksilver 23-888690 is the water-pump spacer in the driveshaft/gear-housing assembly of specified Mercury 225 EFI FourStroke outboards. The pump diagram lists it separately from the adjacent collar and wave washer.
Key Features
- OEM number: 23-888690.
- Water-pump spacer, diagram position 29.
- Separate from collar 23-8886901.
Compatibility and Fitment
A verified application is Mercury 225 hp EFI FourStroke, US serial number 0T653945 and up, standard- and counter-rotation driveshaft gear-housing diagram. Confirm the installed lower unit and pump design.
Replacement and Installation
Inspect the spacer during impeller service and replace it if worn or damaged. Keep the spacer, collar and washer stack in the diagram sequence and follow the pump assembly procedure.
Mercury Parts Finder
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Parts Desk Insight
888690 and 8886901 are different parts in the same pump. Check the full number before ordering the spacer or collar.
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.