Mercury MerCruiser Water Inlet Housing 8M0111791
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Mercury / MerCruiser Quicksilver Water Inlet Housing — 8M0111791
The Mercury Quicksilver 8M0111791 Water Inlet Housing is a genuine OEM cooling system inlet connector used on select MerCruiser sterndrive engines. It connects the water pickup tube to the engine’s cooling system, allowing raw water to enter the engine for proper cooling during operation.
Key Specifications
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Part Number: 8M0111791
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Component Type: Water inlet housing / cooling system connector
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System: Engine raw-water cooling system
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OEM Brand: Mercury Marine / Quicksilver
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UPC: 745061003149
Compatible Engines / Applications
Commonly used on MerCruiser sterndrive engine packages, including:
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4.5L MPI 200 Alpha / Bravo
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4.5L MPI 250 Alpha / Bravo
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6.2L MPI 300
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6.2L MPI 350
Also used on various Bravo-series sterndrives and integrated transom systems depending on serial number range.
Function
The water inlet housing connects the raw water pickup tube from the transom assembly to the engine cooling system. It allows cooling water drawn from outside the boat to enter the engine where it circulates through the cooling passages.
Proper operation ensures:
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Adequate engine cooling water supply
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Stable engine operating temperature
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Reliable cooling system performance
Service Notes
A damaged or worn inlet housing may cause:
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Cooling water leaks
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Reduced cooling water flow
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Potential engine overheating
Replacing the housing helps maintain proper cooling system integrity.
⚠️ Fitment Tip:
Always verify compatibility using the engine and sterndrive serial number. Cooling system connectors can vary depending on the engine model, transom assembly design, and production range.
OEM parts ship same or next day for fast Canada wide shipping.
Technical Specifications:
- Type: Water inlet housing
- Compatible with: Mercury MerCruiser marine engines
- Part Number: 8M0111791
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.