Sierra 18-3543 | Thermostat 143 Deg -Brp#435491
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Maximize Johnson/Evinrude outboard performance and efficiency by running at the optimum temperature.
A failed thermostat can cause an engine to run at outside of its optimum temperature and can adversely affect performance and efficiency. The fix can be as simple as replacing the thermostat. This Sierra thermostat is engineered with a temperature rating of 143°F (62°C) and is compatible with almost 5000 Johnson/Evinrude outboard models.
Key Features
18-3540 Application Guide.
| Application | OEM Part Numbers |
|---|---|
| Johnson/Evinrude Outboard | 393659, 434841, 378065, 508626, 5005440, 437414 |
The Sierra Engine Parts Selector
In addition to thermostats, we offer a wide variety of other engine parts manufactured by Sierra. To see if we have the part you need, see our Engine Parts Selector, where you can search by engine make, serial number and model or year of manufacture
Brand: Sierra
WARNING: This product MAY expose you to chemicals, which are known to the State of California to cause cancer, birth defects and/or other reproductive harm. For more information go to www.p65warnings.ca.gov
Backorder Policy: Occasionally, due to demand or supplier delays, some items may be temporarily out of stock or non-stock items. To ensure you can still get the products you need, you can order items even when they're out of stock. Our sales team will update you with the shipping lead time. Once back in stock, we promptly ship your item, and if your order includes both in-stock and backordered items, we may split the shipment. You can cancel your backorder before shipment, and request a refund to original payment method. For any inquiries, contact us at sales@freeportmarine.com.
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