Mercury Antifreeze -50°F 8M0073201
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Mercury Antifreeze – -50°F – 1 Gallon – 8M0073201
Protect your marine engine and onboard water systems during winter storage with Mercury Antifreeze 8M0073201. This genuine Mercury OEM -50°F (-46°C) water-system antifreeze is formulated for winterizing marine engines, sterndrives, and boat plumbing systems.
The ready-to-use formula contains non-toxic propylene glycol and a corrosion-inhibiting additive package that protects internal metal components while preventing freeze damage. The bright pink color makes it easy to confirm the antifreeze has circulated throughout the system during winterization.
Key Features
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Genuine Mercury Marine / Quicksilver OEM antifreeze
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Burst protection to -50°F (-46°C)
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Freeze protection approximately 12°F to 16°F (-11°C to -8°C)
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Non-toxic propylene glycol formula
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Corrosion protection for aluminum, copper, brass, and solder
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Safe for rubber seals, gaskets, and hoses
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Bright pink color improves visibility during winterization
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Ready-to-use formula – no dilution required
Part Details
OEM Part Number: 8M0073201
Mercury Reference Number: 92-8M0073201
Product Type: Marine water-system antifreeze
Temperature Rating:
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Burst protection: -50°F (-46°C)
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Freeze protection: approx. 12°F to 16°F (-11°C to -8°C)
Container Size: 1 Gallon (3.78 L)
Formula Type: Propylene glycol based, non-toxic winterizing fluid
Compatible Mercury & MerCruiser Applications
Designed for winterizing raw-water cooled engines and marine plumbing systems, including:
Mercury Outboard Engines
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Mercury 2.5HP – 400HP outboards
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Mercury FourStroke outboards
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Mercury Pro XS outboards
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Mercury Verado outboards
MerCruiser Sterndrive & Inboard Engines
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MerCruiser 3.0L
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MerCruiser 4.3L V6
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MerCruiser 5.0L V8
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MerCruiser 5.7L V8
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MerCruiser 6.2L V8
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MerCruiser 7.4L V8
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MerCruiser 8.2L V8
Additional Applications
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Raw-water cooling systems
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Livewell systems
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Wash-down systems
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Freshwater plumbing on boats or RVs
Function
Marine antifreeze replaces water in cooling passages and plumbing lines during winter storage. This prevents freezing expansion that could crack engine blocks, pumps, hoses, or fittings.
Using Mercury antifreeze helps:
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Prevent engine block and cooling system freeze damage
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Protect metal components from corrosion
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Winterize boat plumbing systems
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Extend the life of marine cooling components
Important Compatibility Note
This product is designed for winterizing raw-water systems and is not intended for closed-cooling engine systems that require engine coolant. Always follow the manufacturer’s winterization procedure for proper application.
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.