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Washer Engineered Marine Products - EMP Engineered Marine Products (12-12300)

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Washer Engineered Marine Products - EMP Engineered Marine Products (12-12300)


WASHER EMP - 12-12300 stops a bolt or nut from slipping through a hole that has already been drilled, preventing the screw from gradually separating from the nut or bolt head. Additionally, it can disperse pressure, lock, and stop leaks. It deflects under heavy loads in constrained places and does not become fatigued. It is resistant to coastal areas' corrosive conditions and is custom-made for high-temperature and high-pressure applications. It distributes the weight of the threaded fastener and provides spacers while also absorbing vibrations.

Key Features:

  • It fits shift levers from the MerCruiser MC-1, R/MR/Alpha One, Alpha Gen II, and Vazer.
  • It reduces the risk of bolt tension loss due to vibration, packing and gasket relaxation, high-temperature bolt yield, and differential thermal expansion.
  • Maximum wear resistance, low coefficients of friction, and durability are guaranteed.


  • Brand: EMP
  • SKU: 12-12300
  • UPC: 840080421353
  • Weight: 0.00 LBS
  • Unit Of Measure: EA
  • Manufacturer Part Number (MPN): 12-12300
  • This product replaces: 840080421353, 12-39116

This product replaces:

    840080421353, 12-39116


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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