Dorman - HD Solutions HVAC Blower Fan Switch P/N:599-5000

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$80.99
MPN: 599-5000
Item Package Code: EA
Part Has Core (Y/N): N
Item Package Quantity: 1
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Dorman - HD Solutions HVAC Blower Fan Switch P/N:599-5000
Dorman - HD Solutions HVAC Blower Fan Switch P/N:599-5000
$80.99

Take back control of the cab blower without buying a whole new control module. The Dorman - HD Solutions HVAC Blower Fan Switch 599-5000 is a direct-fit replacement for the 2006-2007 Peterbilt 379 and 2008-2015 Peterbilt 384. On certain Peterbilt vehicles, the only original equipment solution for a failed blower fan switch is to replace the entire control module. This Dorman OE FIX solution replaces just the failed switch and is designed to help reduce repair costs.

Dorman also lists this part as an HVAC Blower Motor Switch. It is the switch that controls the truck's HVAC blower fan.

  • Cost-efficient repair: It directly replaces a failed switch, so you don't need to buy a new module.
  • Effective solution: It addresses a common failure point without the unnecessary cost of a full module.
  • Easy installation: The switch is plug and play for a straightforward repair.
  • Quality engineering: It is designed in the United States and backed by Dorman's decades of automotive aftermarket experience.

Signs this switch may need replacing include a blower fan that no longer responds to the switch, or a fan that works only at some settings. Other faults in the blower circuit can cause the same symptoms, so diagnose the problem first. If the switch is the cause, this Dorman switch replaces it. See the Buyer's Guide tab for engine details.

Interchange: 577.75212K
57775212K · Q216012

This part cross-references / interchanges with the following part numbers:

577.75212K, Q216012

Frequently Asked Questions

What does the Dorman 599-5000 do?

It is an HVAC blower fan switch, also listed as a blower motor switch, and it controls the truck's HVAC blower fan. It directly replaces a failed switch, so the whole control module does not have to be replaced.

Which trucks does this HVAC blower fan switch fit?

It is a direct-fit replacement for the 2006-2007 Peterbilt 379 and the 2008-2015 Peterbilt 384. See the Buyer's Guide tab for full application details.

Do I have to replace the whole HVAC control module?

Not if the switch is the failed part. On certain Peterbilt vehicles, the original equipment fix is the complete module. This Dorman OE FIX switch replaces only the failed switch and is designed to help reduce repair costs.

How difficult is the installation?

Dorman describes the switch as plug and play for a straightforward repair. Follow the vehicle's service information when removing the old switch.

What are signs the blower fan switch may be failing?

A blower fan that won't respond to the switch, or that runs only at some settings, may indicate a failing switch. Other blower-circuit faults can cause similar symptoms, so diagnose the problem before replacing parts.