Start Device P421-4006

Brand: Carrier · Appliance: Air Conditioner · Fits: 10 models · Reference price: $90.39

P421-4006 is a Carrier replacement part (start device) for air conditioners. Our fitment data lists 10 models that use it.

When to replace this part

General hardware and mounting parts

Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.

Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.

Models that use this part

Other parts for model 73TCA008111P

If you are repairing that appliance, these are the most model-specific parts on file for the same model.

• EVAPORATOR SCROLL (73TCA008111P) 73TC402031
• GANG BAR (2) 73TC50002
• SWITCH, ENERGY SAVER HR54ZD001
• Compressor P031-1004
• Evaporator 73TC401731
• NUT, PROP AT30DR241
• Thermostat HH22QB-056
• Control Box 73TC500194

Reference price and where to compare

The reference price on file for this part is $90.39. It is informational only, not an offer or an Amazon price — RepairKitHub does not sell parts directly.

Compare P421-4006 listings on Amazon

Before you order

• Match the part number character for character, including dashes and trailing letters; a single different character is usually a different part.
• Confirm your appliance's model number on its data plate and check that it appears in the list above (or use the model lookup tool).
• If a seller offers a substitute number, check that it appears in this page's replacement list or in the manufacturer's documentation.

Model lookup tool