Mercury MerCruiser Lower Gasket 8M0142616
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The Mercury Quicksilver 8M0142616 (Mercury format 27-8M0142616) is a genuine OEM lower face-plate gasket used in the gearcase / water pump assembly of many Mercury outboards and some MerCruiser applications. It seals the face plate to the gearcase housing, preventing water intrusion and oil leakage inside the lower unit.
Key Specifications
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Part Number: 8M0142616
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Mercury Format: 27-8M0142616
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Component Type: Lower face-plate / water pump gasket
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Material: Nitrile-coated stainless steel composite
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OEM Brand: Mercury Marine / Quicksilver
Function
This gasket forms a critical seal within the lower unit cooling system, helping to:
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Seal the water pump face plate to the gearcase
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Prevent water intrusion into the gear housing
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Prevent gear lube leaks
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Maintain correct cooling water flow and pressure.
If this gasket fails, you may notice:
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Milky gear oil (water contamination)
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Oil leaks around the lower unit face plate
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Reduced cooling efficiency.
Compatible Engines (examples)
This gasket is used on a wide range of Mercury outboards and some sterndrive systems, including:
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Mercury V6 and V8 FourStroke outboards
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150 HP EFI
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200ā300 HP V8 Pro XS
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250R / 300R racing outboards
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Some engines with Sportmaster or performance gearcases.
(Exact compatibility varies by gearcase and serial number.)
Superseded / Related Numbers
Mercury has updated this gasket over time. Related numbers include:
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8M0112903
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8M0050720
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Older flexible gasket 430331 replaced by this metal design.
ā ļø Fitment Tip:
Always verify compatibility using the engine model and serial number. Mercury gearcases vary widely, and water-pump components can differ between standard, Torpedo, and Sportmaster gear housings.
Shipping:
OEM parts ship same or next day for fast Canada wide shipping.
Technical Specifications:
- Type: Lower mounting gasket
- Compatible with: Mercury MerCruiser marine engines and drives
- Part Number: 8M0142616
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.