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Relay, Shrouded - Sierra Marine Engine Parts - 18-5852 (118-5852)

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0.11 LBS
Manufacturer Part Number (MPN):

Relay, Shrouded - Sierra Marine Engine Parts - 18-5852 (118-5852)


SeaStar Solutions' products need to compete because the marine sector is cutthroat. To ensure that every product is thoroughly reviewed and tested for flaws before being shipped out, they implement stringent quality control measures.

RELAY_SHROUDED - 18-5852 are switches that electromagnetically or electronically open and close circuits. By opening and closing contacts in another circuit, relays manage the electrical circuit. Identifying electrical anomalies like overcurrent, undercurrent, overloads, and reverse currents can save equipment damage. Relays are also frequently used to switch heating elements, pilot lights, starting coils, and loud alarms.

Key Features:

  • For four-stroke Mercury/Mariner outboard engines, a shrouded relay
  • It is for 821509, 821509T1, and 853292 from Mercury/Mariner.
  • It fits four-stroke engines with horsepower ratings between 0G231123 and 0G472132 and 0G231123 and 0T178499.
  • Interchangeable with: Mallory 9-15212, Chrysler/Force/US Marine 821509 Stern Drive for a Mercruiser 853292, Mercury Marine, reference number 821509, 821509T01.


  • Brand: Sea Star Solutions
  • SKU: 18-5852
  • UPC: 808282292546
  • Weight: 0.11 LBS
  • Unit Of Measure: EA
  • Manufacturer Part Number (MPN): 118-5852
  • This product replaces: 853292, 47-5852, 808282292546, 821509, 821509T1, 9-15212


This product replaces:

    853292, 47-5852, 808282292546, 821509, 821509T1, 9-15212


We can ship to virtually any address in the US. 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.

Returns 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, please Contact Us with your order number and details about the product you would like to return. We will respond quickly with instructions for how to return items from your order.

Need help? We're available at+1 (800) 664-8116 - Email us
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