Mercury MerCruiser Water Pump Gasket 879150138
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Mercury / MerCruiser Quicksilver Water Pump Gasket ā 879150138
The Mercury Quicksilver 879150138 (Mercury format 27-879150138) is a genuine OEM circulating water pump gasket used on select MerCruiser sterndrive engines. It seals the mating surface between the circulating water pump and the engine block/front cover, preventing coolant leaks and ensuring proper cooling system operation.
Key Specifications
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Part Number: 879150138
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Mercury Format: 27-879150138
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Component Type: Circulating water pump gasket
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OEM Brand: Mercury Marine / Quicksilver
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Typical Price Range: about $7ā$10 USD depending on supplier
Compatible Engines
Commonly used on MerCruiser GM-based engines, particularly:
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3.0L (181 CID) 4-cylinder MerCruiser engines
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Certain 3.0L TKS models depending on serial number range
These engines are typically paired with Alpha sterndrives in many runabouts and small cruisers.
Function
The gasket provides a tight seal between the circulation pump housing and engine block, helping to:
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Prevent coolant leaks
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Maintain proper cooling system pressure
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Ensure efficient engine temperature control
Because it is a thin sealing gasket, it is normally replaced whenever the circulating pump is removed or serviced.
Superseded / Related Numbers
Some catalogs list related or earlier numbers such as:
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27-810848 (earlier design superseded by 879150138)
Aftermarket equivalents may also appear under brands such as Sierra or Mallory, but OEM Mercury gaskets ensure exact fit.
ā ļø Fitment Tip:
Always confirm compatibility using the engine serial number. Even within the 3.0L MerCruiser series, different production ranges may use slightly different pump housings or gasket styles.
Shipping:
OEM parts ship same or next day for fast Canada wide shipping.
Technical Specifications:
- Type: Water pump mounting gasket
- Compatible with: Mercury MerCruiser marine engines
- Part Number: 879150138
Shipping information
In-stock and OEM parts: ship same or next business day.
Locally warehoused items: ship within 3ā4 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 ā 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 ā 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.