Mercury Water Pump Base Gasket 192043
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Mercury 192043 is a genuine OEM water pump base gasket for selected Mercury and Mariner small outboard applications. Mercury and dealer listings identify it in catalog format as 27-192043, used in the water pump assembly between the pump base and gearcase housing.
Key Features
- Genuine Mercury Marine / Quicksilver OEM part
- Part number 192043
- Mercury shorthand listing: 27-192043
- Identified as a water pump base gasket
- Designed for selected small outboard water pump assemblies
Engine Compatibility
This gasket is commonly listed for selected Mercury 6 HP, 8 HP, 9.9 HP, 10 HP, and 15 HP outboards, including 6–15 HP 2-stroke carbureted models and selected 9.9/15 HP 4-stroke carbureted models within serial range 0G760300–1B226999. Compatibility should still be confirmed by exact model and serial number before ordering.
Serial Number Fitment Notice
Please confirm compatibility in the Mercury Parts Catalog using your exact engine serial number before purchase. Mercury’s catalog is organized by model and serial number for accurate parts lookup.
When This Part Needs Replacement
Replace this gasket during water pump service when the original gasket is compressed, torn, leaking, or being renewed during impeller and pump-base maintenance. Because it seals the base of the water pump assembly, its condition matters for proper cooling-system sealing. This installation context is supported by product listings that place it between the water pump base and lower gearcase housing.
Installation Notes
Install only the exact gasket specified for the outboard being serviced. On small Mercury water pump assemblies, matching by exact part number and serial-based diagram is the safest way to maintain proper fit and sealing.
Alternate / Superseded Part Numbers
- 27-192043
- Sierra cross-reference: 18-0995
Some aftermarket listings also group this gasket with nearby related gasket numbers, so the safest match for this listing is the exact OEM number 192043 / 27-192043.
Parts Desk Insight
Small water pump gaskets are easy to underestimate, but they do important sealing work in the cooling system. Replacing the base gasket during pump service helps keep the assembly sealed properly and is a smart step when refreshing the impeller and pump components.
Shipping: Ships same or next day for fast Canada wide shipping. ⚓
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.