CONTACT & SUPPORT
Live Chat: Online Now
'/%3E%3C/svg%3E)
Hover image to zoom
 --%3E %3Csvg version='1.1' id='Fill' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23F15C02' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
 --%3E %3Csvg version='1.1' id='Half' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cg%3E %3Cpath fill='%23F15C02' d='M30.05,70.23l3.79-12.01L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1h1.58 L93.71,7.18c-3.58-3.82-8.66-6.23-14.28-6.23H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,5.41,2.22,10.32,5.79,13.88 L30.05,70.23z'/%3E %3C/g%3E %3Cpath fill='%23FBC8B4' d='M93.71,7.18L60.98,39.6H91.2L65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82l5.55-17.59L6.75,93.32 c3.55,3.54,8.44,5.73,13.82,5.73h58.87c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,15.4,97.01,10.69,93.71,7.18z'/%3E %3C/svg%3E){kind=small}
Hover image to zoom
$19.91 each
In Stock
Order by 6PM, receive Monday
'/%3E%3C/svg%3E){kind=small}
Free Shipping On orders over $99
Easy Returns No restocking fee for 90 days
Description
–
Carrier 336901-401 Knob
An official OEM Carrier replacement knob used on Carrier HVAC equipment to restore proper operation of the associated control or access component when the correct knob is required.
Key Features
Compatibility & Applications
Installation & Operation Notes
Maintenance & Troubleshooting
User Reviews & Q&A Summary
An official OEM Carrier replacement knob used on Carrier HVAC equipment to restore proper operation of the associated control or access component when the correct knob is required.
Key Features
- Official OEM knob for Carrier HVAC equipment
- Part number: 336901-401
Compatibility & Applications
- Listed for Carrier HVAC equipment (compatibility must be confirmed using the unit's full model/serial and the manufacturer-specified replacement part number).
- Must only be used where the manufacturer specifies this exact part number: 336901-401.
Installation & Operation Notes
- Installation should be performed by a qualified HVAC service technician (or an experienced individual following the unit's service guidance).
- Reference the unit's service/installation manual to confirm the correct knob location/application and any required alignment or fastening method.
- User feedback indicates that, in some cases, installation may require minor on-site adjustment for fit (see review themes).
Maintenance & Troubleshooting
- Typically replaced when the original knob is broken, missing, or damaged, affecting the ability to operate the related component or securely handle an access/control function.
- If the replacement does not fit as expected, confirm the unit's exact part number match and inspect the mounting hole/interface for damage or non-standard sizing.
User Reviews & Q&A Summary
- Correct-fit replacement: Many reviewers describe it as a perfect/exact fit and "just what I needed," often tied to fixing a furnace door/control situation after the original knob broke or was missing.
- Ease of install: Common feedback says it's easy to install once the correct part is identified.
- Availability & delivery: A frequent theme is that SupplyHouse had the part when others didn't, with praise for quick delivery.
Questions?
Speak with a real person who will go out of the way to help!
Call or text 888-757-4774
Monday – Thursday
8am–7:45pm
Friday
9am–7:45pm
Saturday – Sunday
9am–5:45pm
You May Also Need
Product Reviews
4.72 out of 18 reviews
94% would recommend this product
5 star
89%
4 star
6%
3 star
0%
2 star
0%
1 star
6%
Most Liked Positive Review
Right part and fast service
I needed to replace a specific model of fastener knob for a furnace panel. I was able to quickly found the right part at SupplyHouse. It was reasonably priced and arrived quickly!
VS
Most Liked Negative Review
 --%3E %3Csvg version='1.1' id='With-RB' xmlns='http://www.w3.org/2000/svg' xmlns:xlink='http://www.w3.org/1999/xlink' x='0px' y='0px' viewBox='0 0 100 100' enable-background='new 0 0 100 100' xml:space='preserve'%3E %3Cpath fill='%23FBC8B4' d='M79.44,0.95H20.56C9.78,0.95,0.95,9.78,0.95,20.56v58.87c0,10.79,8.82,19.61,19.61,19.61h58.87 c10.79,0,19.61-8.83,19.61-19.61V20.56C99.05,9.78,90.22,0.95,79.44,0.95z M65.38,58.24l9.38,29.58L49.69,69.78L24.5,87.82 l9.34-29.6L8.8,39.6l30.73-0.17c0,0,6.98-19.61,10-28.93c0.54,1.36,9.88,29.1,9.88,29.1H91.2L65.38,58.24z'/%3E %3C/svg%3E){kind=small}
The product did not fit my unit without modification to unit
2 times up ladder into and out of attic. I had to find a drill and bit large enough to open the hole so the part would fit.
Showing 1-10 of 18 reviews
Right part and fast service
I needed to replace a specific model of fastener knob for a furnace panel. I was able to quickly found the right part at SupplyHouse. It was reasonably priced and arrived quickly!
Happy customer
California
1 months ago
Verified Buyer
Was this review helpful to you?
Great product and fit
Nice product
Gary S
NJ
10 months ago
Verified Buyer
Was this review helpful to you?
Great product and fit
great fit
gshhk
NJ
10 months ago
Verified Buyer
Was this review helpful to you?
Great product and fit
works great. thanks
gshhk
mahwah NJ
10 months ago
Verified Buyer
Was this review helpful to you?
Perfect fit easy to install
fixed the door on my furnace
Onyx
St Louis Park, MN
1 years ago
Verified Buyer
Was this review helpful to you?
Perfect fit
Great products and perfect fit.
Linda
Little Silver, NJ
4 years ago
Verified Buyer
Was this review helpful to you?
I would buy this product and similar products again
Inexpensive and fast delivery
Ed
Chicago
4 years ago
Verified Buyer
Was this review helpful to you?
Perfect replacement for broken part.
Tech broke the part and did not tell me. This was an easy, perfect replacement part.
JinSS
Silver Spring, MD
4 years ago
Verified Buyer
Was this review helpful to you?
Great Product & Service
This is service like no other. Thanks for Rocking it!
RDeni
Pflugerville
5 years ago
Verified Buyer
Was this review helpful to you?
I would by this product again
Just what I needed, and it arrived quickly!!
Johnny
Dallas, TX
5 years ago
Verified Buyer
Was this review helpful to you?
Free Shipping
On orders over $99
We offer flexible shipping and scheduling options, up-to-date delivery estimates, and free ground shipping on any order over $99 to make sure your order gets to you on-time, for less.
Shipping PolicyEasy Returns
Returning items is as simple as 1-2-3
Ordered the wrong product? Item damaged in transit? Our 3-step process makes returning products easy – even up to a year after purchase – with no restocking fees on returns made within 90 days.
Return Policy