Classic Aeron Lumbar Support




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Classic Aeron Lumbar Support

Classic Aeron Lumbar Support

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Item Number: 133753

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Item Number: 241732BK


Affix this unit to the frame of your Classic Aeron (manufactured before October 2016) and to adjust it to your back’s natural curve. To determine size of chair, feel under the back-frame edge near top corner: one bump is A, two is B, and three bumps in a triangle is C.
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4.1 / 5.0
14 Reviews
5 Stars
4 Stars
3 Stars
2 Stars
1 Star
Very good overall. But it continually slips out, as did the original. Is there any trick to keeping it in place??
February 7, 2020
6 months ago
Response from Herman Miller
The Classic Aeron Lumbar Support is designed to adjust vertically up and down for optimum positioning against the users back. The support should not slip out of its track, however. I will send you an email to learn more about your order and to see how I can help.
February 7, 2020
Melissa M
Good lumber support, Poor fabrication design.
The problem occurs with the plastic 'foam'
material drying out over time and losing resilience. There is no internal fiberglass or other mesh to keep the lumber support from splitting from repeated daily stress. Simple cure for an engineer, but poor design at production.
December 16, 2019
Does not stay on chair
This will not stay attached to the chair when lumbar pressure is applied. It constantly pops off during use. Would have thought they tested it before production?
August 20, 2017
Terrific service
I needed a replacement lumbar support, ordered the wrong size - repeal and replace was easy with friendly customer service. Thanks!
July 20, 2017
Most of the time good
Part does its, well, part! Just one time it pop out but since I reinserted it's doing fine. This is the only reason I didn't gave it 5 stars!
April 20, 2017
Ordered the wrong part
We ordered the wrong part and Customer Service was amazing and helped me get a refund and the correct part ordered to repair a chair. It's nice to be able to order replacement parts for older chairs instead of always buying new ones.
January 10, 2017
Customer Service
I recently needed a new lumbar support for my Aeron Chair that is over 15 years old. This company still stocked it and got it to me right away.
January 6, 2017
Lumbar support comfortable, not durable
Great chair. Lumbar support not durable and expensive to replace
November 4, 2016
Excellent replacement part support and communication
I found Herman Miller Store staff amazingly cooperative and persistent in getting me the replacement parts I needed.
October 11, 2016
Works Well
Just started to work from home and I am using my chair more often so the extra support was needed and it works well.
April 22, 2016

Product Q&A

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Browse 6 questions Browse 6 questions and 6 answers
Can this and posture fit be on a chair at the same time?
A shopper on Aug 19, 2015
Best Answer: No, the Classic Aeron chair can either have one support or the other. Both supports use the same guide rail and would not be able to adjust to have both on.

Please contact the Herman Miller Store if you have any further questions at 888-798-0202 or hmstore@hermanmiller.com.
Does this fit on the Aeron remastered ?
Victor on Jul 10, 2018
Best Answer: The Classic Aeron chair Lumbar Support does not fit on the Remastered Aeron chair.

For additional questions, we can be reached at hmstore@hermanmiller.com or 888.798.0202.
How do I determine the size of the chair, i.e., medium or large?
A shopper on Dec 4, 2015
Best Answer: To determine which size Classic Aeron Chair you have, rotate your chair until you are viewing the back of the chair. Place your hand on the top of the back frame that is shaped like a handle. On the back side of the piece are raised dots indicating which size chair you have. Three dots are used for size C chairs, two dots for size B and one dot for size A.

If you need assistance locating the size indicator, please give us a call at 888.798.0202.
Does this fit the celle chair?

I have a Celle Chair that did not come with lumbar support. I can not find lumbar support for the Celle, and I wonder if this will work as well?
A shopper on Jan 15, 2017
Best Answer: This lumbar support is made for the Classic Aeron chair and will not fit the Celle chair.

An Authorized Herman Miller Dealer in your area will be happy to help you find the lumbar support you're looking for. Please use our Find a Location link below to find the dealership near you:


Should you run into any challenges, please contact the Herman Miller Store at 888.798.0202 or hmstore@hermanmiller.com.
Will this fit on Aeron chairs that weren't originally equipped with the lumbar support?
A shopper on Mar 9, 2016
Best Answer: Yes, the Lumbar Support Kit will work on any Classic Aeron chair. The Classic Aeron back rest is designed to be able to add either of the back support options.

Please contact the Herman Miller Store if you have any questions at 888-798-0202 or hmstore@hermanmiller.com.
Does the replacement lumbar support fit older aeron chairs?
A shopper on Dec 4, 2015
Best Answer: The replacement lumbar support will fit all older Classic Aeron chairs.

Please contact the Herman Miller Store if you have any additional questions at 888-798-0202 or hmstore@hermanmiller.com.