UANOFCN 120° Thermostat Kit 14586A3 for Mercury Mariner Outboards 6–25HP | 2-Cycle
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Description
xOverview
Meet the UANOFCN 120° Thermostat Kit, a thoughtfully designed upgrade for Mercury Mariner two‑cycle outboards ranging from 6 to 25 HP. This kit centers on a precise 120‑degree thermostat intended to support steady engine temperatures, helping the motor reach its intended operating zone more reliably on the water.
Engineered to replace multiple common part numbers, this kit provides a practical retrofit solution that aligns with several trusted brands. While not a guarantee, the component set is aimed at helping your outboard maintain smooth performance under varying loads and conditions.
What’s in the box
The package includes a four‑piece assembly designed for straightforward fitting during routine maintenance or a planned service interval. You’ll receive a 120° thermostat plus three gaskets to help seal the installation effectively.
- 1 x 120 Degree Thermostat (part 14586)
- 1 x Gasket (27-19205002)
- 1 x Gasket (27-14318)
- 1 x Gasket (27-62386)
Compatibility and part references
The kit is positioned as an adaptable replacement for Mercury Marine parts and related models. Notable cross‑references include Mercury 14586A3, along with Sierra 18‑3549, and other listed equivalents. The listing highlights the importance of verifying part numbers prior to purchase to ensure a correct match for your engine model.
- Mercury Mariner two‑cycle outboards from 6HP to 25HP
- Replaces: Mercury 14586A3, 75692A10, 75692A11, 75692A9; Sierra 18‑3549; GLM 13121; Mallory 9‑43052
- Important: check the exact part number before buying to confirm fitment
Usage notes and potential benefits
When installed as part of regular service, this thermostat kit may help the engine reach and maintain target temperatures more consistently, which can contribute to smoother mid‑range performance and potentially more predictable idle and acceleration behavior. Benefits are described as possibilities based on how a properly calibrated thermostat can influence operating temperatures.
- Designed to support stable operating temperatures for compatible Mercury Mariner 2‑cycle outboards
- Includes essential gaskets to promote a solid seal during operation
- Cross‑references with common Mercury and Sierra part numbers for planning and compatibility checks
Installation and care tips
Before purchase, verify the part number and engine model to confirm compatibility. During installation, ensure clean mating surfaces and secure gasket seating to help reduce leaks. As with any critical water‑cooled component, follow your service manual guidance for proper torque and reassembly.
FAQ
Q: What engines is this thermostat kit compatible with?
A: Compatible with Mercury Mariner 6–25 HP 2‑cycle outboards; kit includes a 120° thermostat and three gaskets.
Q: What does the kit include and how should I verify compatibility before purchasing?
A: Includes 1x 120° thermostat and 3x gaskets (27-19205002, 27-14318, 27-62386). Check Mercury 14586A3 or Sierra 18-3549 part numbers before buying.
Shipping & Return
xReturns Policy
You may return most new, unopened items within 30 days of delivery for a full refund. We'll also pay the return shipping costs if the return is a result of our error (you received an incorrect or defective item, etc.).
You should expect to receive your refund within four weeks of giving your package to the return shipper, however, in many cases you will receive a refund more quickly. This time period includes the transit time for us to receive your return from the shipper (5 to 10 business days), the time it takes us to process your return once we receive it (3 to 5 business days), and the time it takes your bank to process our refund request (5 to 10 business days).
If you need to return an item, simply login to your account, view the order using the "Complete Orders" link under the My Account menu and click the Return Item(s) button. We'll notify you via e-mail of your refund once we've received and processed the returned item.
Shipping
We can ship to virtually any address in the world. Note that there are restrictions on some products, and some products cannot be shipped to international destinations.
When you place an order, we will estimate shipping and delivery dates for you based on the availability of your items and the shipping options you choose. Depending on the shipping provider you choose, shipping date estimates may appear on the shipping quotes page.
Please also note that the shipping rates for many items we sell are weight-based. The weight of any such item can be found on its detail page. To reflect the policies of the shipping companies we use, all weights will be rounded up to the next full pound.
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