Modine Hot Dawg Unit Heater Limit Switch 3H04778-3

Modine Hot Dawg unit heater limit switch P/N 3H04778-3

Replaces 5H75769-1

Used with many HD30, HD45, HD125 models

If you are not sure this is correct for your model please give us a call or email us with your complete model and serial number and we will be happy to make sure you get the correct part

OEM Modine parts

Shipping rate for continental United States

$93.00

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  • Model: 3H04778-3
  • 2000 Units in Stock
  • Manufactured by: Modine
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4.9
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98%
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Verified Buyer
December 4, 2025 by Kelly B. (United States)
“Very hands on, helpful and knowledgeable.”
Verified Buyer
December 3, 2025 by A Reviewer (United States)
“Always easy to order the filters that I need.”
Verified Buyer
November 29, 2025 by Julie E. (Frederick, MD, United States)
“I searched for a replacement draft inducer assembly with housing. Many places sold separate pieces/smaller kits. I liked the option offered on Shorty's HVAC. I ordered on a weekend, and patiently waited for it to arrive. Packaging was great, and product was as described/brand new. Swapping out was not too bad! My only suggestion is to offer FedEx shipping (in addition to current type) so that these quality parts can get to the site ASAP.”

Manufacturer Info

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