Mercury MerCruiser Quicksilver Carburetor Float Kit 8M0120190
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Mercury / MerCruiser Quicksilver Carburetor Float Kit ā 8M0120190
The Mercury Quicksilver 8M0120190 is a genuine OEM carburetor float kit used in select MerCruiser carbureted engines equipped with Weber carburetors. The float regulates the fuel level inside the carburetor bowl to maintain the correct fuel-to-air mixture for proper engine operation.
Key Specifications
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Part Number: 8M0120190
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Component Type: Carburetor float / float kit
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Material: Brass float
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OEM Brand: Mercury Marine / Quicksilver
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Supersedes: 811536 / 811536T
Compatible Engines
Commonly used on MerCruiser carbureted engines with Weber carburetors, including:
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4.3L V6
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5.0L V8 (305 CID)
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5.7L V8 (350 CID)
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7.4L V8 (454 CID)
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8.2L V8 (502 CID)
Typical model years span late-1980s through mid-1990s MerCruiser engines using Weber 2-barrel or 4-barrel carburetors.
Function
The carburetor float controls the fuel level inside the carburetor bowl:
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As fuel enters the bowl, the float rises.
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When the correct fuel level is reached, it closes the needle valve.
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When fuel is consumed by the engine, the float drops and allows more fuel to enter.
This cycle keeps the fuel level stable so the engine receives the proper mixture.
Signs of a Bad Float
A damaged or leaking float can cause:
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Engine running rich
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Fuel flooding in the carburetor
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Hard starting
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Fuel leaking from the carburetor vent
Replacing the float restores proper fuel level control and engine performance.
ā ļø Fitment Tip:
Always verify compatibility using the engine serial number and carburetor model. MerCruiser engines used several different carburetor designs (Weber, Rochester, etc.), and the float style must match the carburetor assembly.
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 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.