How to replace an InSinkErator with Waste King

Can you replace an InSinkErator garbage disposal with a Waste King? Yes, now you can do this by using the ‘EZ mount to 3-bolt mount’ adapter kit from Waste King.

Here is it;

EZ to 3-bolt adapter

The reason why this replacement was not possible is that InSinkErator disposals use a patented 3-bolt system while Waste King uses an EZ mount. These two are not compatible, here is a detailed post on it if you are interested.

So what this EZ to 3-bolt mount adapter does is; it basically creates an extension of the neck of the Waste King disposal and adds a 3-bolt mounting tab on its top.

To use this adapter kit you need some parts of the InSinkErator disposal; the sink flange, and the mounting tabs.

Time needed: 20 minutes.

Here are the steps to replace an InSinkErator garbage disposal with a Waste King one

  1. Disconnect the InSinkErator disposal

    You have to disconnect the old disposal first, but not entirely. Remove the water and electrical connections and twist off the disposal from the mounting ring. The 3-bolt assembly shouldn’t be removed. Then remove the mounting tab (the 3rd one) which is on the neck of the disposal unit.

  2. Insert the adapter kit through the above-removed mounting tab

    Remember the mounting tab we removed from the InSinkErator’s neck? Slide the thinner part of the adapter kit through it. The top portion of the mounting tab should touch the top of the adapter kit.

  3. Install adapter kit to the Waste King unit

    Just like installing the Waste King unit on the sink flange, connect the garbage disposal to the adapter kit. Tighten it. Now, this has become a garbage disposal with a 3-bolt mount compatible neck.

  4. Mount the whole unit on the 3-bolt mount

    Connect the whole unit to the 3-bolt assembly like you would install an InSinkErator garbage disposal.

And that’s it! If you have any questions do let me know in the comments.

Charles John

A few years back I bought a garbage disposal for the first time in my life. And the buying experience wasn't good. There were lots of models in the market, and I was not sure about which one to buy. They all looked the same to me. So once I went through the experience I started this blog to randomly write things about garbage disposals. Then I got really interested in the subject and started to write comparisons of very similar garbage disposals with each other. A lot of my readers find them very useful in making the right buying choice. I hope it helps you too.

2 thoughts on “How to replace an InSinkErator with Waste King

  1. This is very helpful as I am considering to replace Insinkerator with Waste King. One question. I see 3-bolt products from Waste King from their website. Would the 3-bolt assembly be compatible between Waste King and Insinkerator? In other words, do I need to remove the old (Insinkerator’s) 3-bolt assembly or can I just leave it on (which will ease the installation)?

    1. Hi,
      The 3-bolt assemblies of Waste King and InSinkErator are not compatible with each other. You will have to remove the whole mounting and do everything again.

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