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Mercury/Crusader Rotor - Sierra Marine Engine Parts - 18-5420 (118-5420)

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0.04 LBS
Alternate Products SKU:
"65864", "300-00858", "18-5420"
Manufacturer Part Number (MPN):

Mercury/Crusader Rotor - Sierra Marine Engine Parts - 18-5420 (118-5420)


Aluminum or titanium, which is more expensive, is used for the compressor impeller. Splines from a single casting hold it to the rotor shaft. The compressor and turbine impeller are two examples of the components found on the massive and intricately designed turbocharger rotor shaft. Rotor assembly consists of a rotor shaft and a die-cast rotor. These parts may be machined and assembled, only partially machined and assembled, or both. The economical aspects, size, unit volume, and desired electric motor efficiency—all of which are influenced by efficiencies and the air gap between the rotor and the stator—are among the other issues.

Key Features:

  • Sierra's premium engine components adhere to OEM guidelines.
  • Has Autolite & Mercury Ignition and fits Ford & GM V-8 engines.

Replaceable with:

  • Crusader 3000122
  • GLM 71030
  • 65864 Mercruiser Stern Drive
  • 78016 Mercruiser Stern Drive
  • Stern Drive for a Mercruiser 49924
  • Stern Drive for a Mercruiser 47584


  • SKU: 18-5420
  • UPC: 030999319234
  • Weight: 0.04 LBS
  • Unit Of Measure: EA
  • Alternate Products SKU: "65864", "300-00858", "18-5420"
  • Manufacturer Part Number (MPN): 118-5420

Fits: Ford & GM V-8 Engines With Autolite & Mercury Ignition

This product replaces:

    47-5420, GLM71030, 78016, 3000122, 3-93020, 92-71030, AP858, 30999319234


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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