Creative Solutions Since 1982

Replacement Rotary Light Dimmer Knobs

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Now you can match your rheostat button to your switch plates with these classic replacement dimmer knobs in a wide variety of finishes. Available for various brands of light dimming switches, you can choose from satin silver/chrome, grey, copper, white, light almond, ivory, red, brown, black, antique brass, bronze, Venetian bronze, satin bronze, or dark bronze buttons.

Check the brand name on the device in the wall to confirm which brand device you have.

  • 1.5" (38.1 mm) round x .5" (12.7 mm) deep plastic replacement knobs - all finishes except white and ivory are spray-painted (knobs only manufactured in white or ivory colors)
  • dimmer knobs are brand / stem type specific - see image to determine your stem type
  • try to find the brand name on the device itself to help identify which knob will work
  • Leviton, Lutron, or Pass & Seymour / GE brand stem types; 3/8" (9.5 mm) internal depth
  • Leviton - 7/32" (5.5 mm) diameter D-shaped stem; 3/8" internal depth
  • Lutron - 7/32" (5.5 mm) diameter split stem; knob has C-shaped opening; 9/32" (7.1 mm) internal depth
  • GE - 3/16" (4.8 mm) round split metal stem; replacement knob has circular opening with two wings - one fits into slot, other pushes outside edge to hold
  • "Current GE Replacement" style will fit your old GE light dimmer device (but not low voltage master selector) and is the correct replacement for an "Old GE" knob

Some brands may not have name printed on device, so if you still don't see what you need, please see our Dimmer Knob Replacement Guide with photos of old dimmers if you have more questions. 

GE note - older GE dimmer switches push in to turn lights on, then rotate to dim. This discontinued brand is found in older homes. The old style dimmer knob has a circular opening on back with tiny ridges inside that tended to strip over time. These current Pass & Seymour brand replacement knobs for GE dimmers are designed to be longer-lasting.

Vintage Low Voltage Systems: If you are trying to replace a GE knob for a on old low voltage 9 switch controller, then the Lutron knob is a better fit because the center stem is larger than those on a regular light dimmer.

Note: these knobs are about 1/2" (12.7 mm) deep and the dimmer stems push into the back of them about 5/16" (7.9 mm). The area where you push in the stem does not extend past the base of the knob. If you need extra long stems to fit down into a hole on vintage speakers or are trying to replace dimmers by other brands these may not fit. Please confirm whether you have at least 1/2" (12.7 mm) of stem protruding from your wall plate.

Choose your replacement rotary knob color based on the either the shade of your current electrical switches or the finish of your wall plates. Mixing and matching knobs to tie in other hardware or room furnishings is also a popular approach.

  • a black dimmer switch knob will look particularly great on black, dark bronze, or stainless steel wall plates
  • dark brown dimmer switch knobs are attractive when paired with dark wood, brown, bronze, and brass light switch covers
  • almond, ivory, and white replacement dimmer switch knobs are good neutral colors for light switch plates in any color

Visit Rotary and Slide Dimmers and Switch Plates by Finish for more options.

Q & A

Q. How can I tell if this knob will still clear the surface of my wall plate? A. The internal depth on each brand's knob is listed above. This refers to how deep the stem goes into the back of the knob). To test if this depth will work on your device, cover up the stem with masking tape for the distance listed next to the brand you need. That will be the bottom of the knob. For push on/push off dimmers, test by pushing the stem in to see if the knob will clear the surface of your wall plate.

Q. The back of my Pass & Seymour dimmer knob looks different than my vintage GE knob. Will it fit? A. Yes, if it is installed correctly. The P&S knob has two "wings" that protrude toward the center of the knob. One of these wings must be inserted into the slot in the stem. This keeps the knob on tight and prevents it from slipping when turned. Please see the additional photo above.

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Product Reviews

  • L
    Lorelei M Krucki Verified Buyer
    16th Mar 2022
    Good replacements for dimmer

    I needed to replace my cracked dimmer knob. I was very please as it worked perfectly.

  • A
    Anna Verified Buyer
    4th Jan 2022
    Saved the Day

    I couldn't find the proper stem type to replace my broken dimmer knob in any of the local hardware or home improvement stores. I'm so grateful that Kyle Switchplates carries these and shipped them quickly! A real lifesaver.

  • B
    Bianca Verified Buyer
    13th Dec 2021
    Great product

    I couldn’t find this knob anywhere in stores, very happy to find it. Very satisfied with the product and the customer service. Thank you!

  • R
    Robin Poppers Verified Buyer
    29th Sep 2021
    Replacement knobs

    The knobs are as they were described. I was glad to find even the old model available. Arrived faster than was expected.

  • J
    Jeff Verified Buyer
    15th Sep 2021
    dimmer knob

    A great find! Fits my early '80s dimmer. Spendy, but cheaper and a lot less work than replacing the entire rheostat.

  • T
    Thomas J Otzel Verified Buyer
    11th Mar 2021

    I was very pleased with the replacement knob.

  • K
    Katherine F Gomez Verified Buyer
    8th Feb 2021
    dont know what this means

    came on Time. Worked perfectly

  • S
    Sherry C. Verified Buyer
    19th Nov 2020
    Replacement dimmer switch knob

    The knob itself came in great condition and their customer service is excellent! The knob didn't exactly fit, but, it was as close as anyone was able to come to an exact match to replace our outdated one which broke.
    STAFF - There are a lot of vintage brands that are no longer in business so we're glad to know it worked out for you. Leviton, Lutron, GE, and Pass & Seymour /Legrand are the most common.

  • L
    Lindsay Verified Buyer
    1st Jun 2020

    Looked for these replacement rotary dimmer knobs everywhere. Finally found an affordable quality set that worked and replaced some old discolored switches that were in my house when I bought it. These look and fit great!

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