White-Rodgers 21M51U-843 Universal Integrated Furnace Control Kit

HVAC Surplus Store | HVAC Equipment
(6475)
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US $268.94
as low as $44.82/mo with 0% APR with
Condition:
New
2 available
Breathe easy. Returns accepted.
Shipping:
Free Standard Shipping.
Located in: Indianapolis, Indiana, United States
Delivery:
Estimated between Wed, Dec 3 and Sat, Dec 6 to 94104
Estimated delivery dates - opens in a new window or tab include seller's handling time, origin ZIP Code, destination ZIP Code and time of acceptance and will depend on shipping service selected and receipt of cleared paymentcleared payment - opens in a new window or tab. Delivery times may vary, especially during peak periods.
Returns:
30 days returns. Buyer pays for return shipping. If you use an eBay shipping label, it will be deducted from your refund amount.
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eBay item number:164751622597
Last updated on Nov 20, 2025 11:07:23 PSTView all revisionsView all revisions

Item specifics

Condition
New: A brand-new, unused, unopened, undamaged item in its original packaging (where packaging is ...
Brand
White-Rodgers
Type
Combustion
Power Source
N/A
Compatible Brand
N/A
Voltage
N/A
Item Length
11.625
Item Width
3.875
MPN
21M51U-843
Model
21M51U-843
Compatible Model
N/A
Item Thickness
N/A
Material
N/A
UPC
786710540707
Category

Item description from the seller

About this seller

HVAC Surplus Store | HVAC Equipment

99.7% positive feedback•32K items sold

Joined Aug 2017
HVAC Surplus carries a large assortment of HVAC, heating ventilation and air conditioning replacement parts from top manufacturers at the best price. Replacement parts for repair and maintenance; the ...
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Detailed seller ratings

Average for the last 12 months
Accurate description
4.9
Reasonable shipping cost
5.0
Shipping speed
5.0
Communication
5.0

Popular categories from this store

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Seller feedback (6,703)

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  • o***y (1152)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Received this in record time! I messaged them and told them that I was a contractor and needed this as soon as possible, they made no promises but it got delivered in 3 days! The price was cheaper than any distributor in my area by far.
    Honeywell 120-Pint Dehumidifier (#165233826329)
  • d***a (47)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    Wall plates were excellent quality and in brand new condition as advertised. They seemed to be a good value based on a quick online shopping. Appearance is good and as expected. The seller shipped the items VERY fast and they were in my mailbox a couple of days after ordering. That was super!
    White-Rodgers SA6W White Thermostat Wallplate For Sensi Touch 2 & Sensi Lite (#167051226821)
  • e***o (1580)- Feedback left by buyer.
    Past 6 months
    Verified purchase
    The seller packed unit poorly. Bottom of box opened during shipping and the instructions fell out plus the unit got a couple of dents. Contacted seller. He rather pay return shipping than discount it. I decided to keep it anyway. It took for ever to get the seller to send me the instructions. He's very slow on response time so you have to keep bugging him. I won't buy from him again. Just very poor service!
    Honeywell Electronic Air Cleaner Unit 20 x 25 (#164749680866)
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Product ratings and reviews

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3.0
4 product ratings
  • 2 users rated this 5 out of 5 stars
  • 0 users rated this 4 out of 5 stars
  • 0 users rated this 3 out of 5 stars
  • 0 users rated this 2 out of 5 stars
  • 2 users rated this 1 out of 5 stars

Would recommend

Good value

Good quality

Most relevant reviews

See all 3 reviews
  • by duc_7467
    Dec 29, 2020

    I was sold a defective part.

    It did not work. My heating and air guy hooked it up and it just hummed. We then had to go to a supply house to acquire another one. An original one

    Verified purchase: YesSold by: wclsalvagesale

  • by chriswthegr8
    Dec 29, 2017

    Terrible Product

    Received product quickly, but board failed even quicker. Installed the board and it failed after 3 days, as diagnosed by a furnace technician.

    Verified purchase: YesCondition: NewSold by: supplystuf

  • by seeq
    Jan 21, 2020

    Work as expected!

    work as expected, to replace an old one. installation procedure straightforward

    Verified purchase: YesCondition: Pre-OwnedSold by: jorobachi-7

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