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Carrier

OEM Carrier Contactor C48A403551 for Model C48A403551

SKU: carrier-contactor-c48a403551 Brand: Carrier
$49.95

Order before 3PM CST — ships same day.
Standard delivery 2-5 business days. Express options at checkout.

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OEM Carrier Contactor C48A403551 for Model C48A403551

This genuine OEM Carrier contactor (C48A403551) is the electromagnetic switch responsible for sending high-voltage power to your compressor and condenser fan motor on each cooling cycle. Produced to Carrier's precise factory specifications, it provides crisp contact closure, dependable amperage handling, and long-term resistance to arcing and contact wear. Designed as a direct replacement for Carrier model C48A403551, it matches the original coil rating and terminal configuration so installation is straightforward and reliable. Swapping out a failing contactor cures common symptoms like chattering, weak compressor starts, short cycling, and scorched contacts. The replacement is a moderate task for an HVAC professional: disconnect power at the disconnect, document and move each wire to the matching terminal, mount the new contactor, and restore power — generally completed in under half an hour. We carry this part in stock and ship same-day on orders placed before 3PM CST, getting your equipment running again quickly. Every OEM Carrier part is new, never refurbished, and held to genuine manufacturer quality standards for confident, lasting repairs.

Compatibility

This part is compatible with Carrier model C48A403551.

Shipping

Same-day shipping before 3 PM CST. 30-day returns on uninstalled parts.

Shipping Information

  • Orders placed before 3PM CST ship same business day
  • Standard delivery: 2-5 business days
  • Express shipping available at checkout
  • Free shipping on orders over $75
  • Tracking number emailed upon shipment

Return Policy

  • 30-day returns on unused parts in original packaging
  • Electrical parts (capacitors, contactors, control boards) are final sale once installed
  • Email support@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Carrier Model C48A403551?
Yes. This is the factory-specified OEM contactor for the Carrier Model C48A403551. It is a direct drop-in replacement that fits without modification. Always verify the model number on your equipment nameplate before ordering.
How do I replace the contactor on my Carrier Model C48A403551?
Difficulty: Medium (30–45 min)
Step 1: Turn off breaker. Step 2: Open condensing unit panel. Step 3: Photograph ALL wiring on the contactor. Step 4: Label each wire with tape. Step 5: Disconnect wires and remove old contactor. Step 6: Mount new contactor, reconnect wires matching your photo. Step 7: Restore power and test.
My AC clicks but the compressor won’t turn on. What’s wrong?
Clicking from the outdoor unit without the compressor starting = worn contactor. The contactor sends power to the compressor. When its contacts are pitted, it clicks but can’t make solid contact. Look for: visible pitting/burn marks on the contactor face, intermittent operation, or buzzing.
Is this contactor compatible with Bryant or Payne too?
Many Carrier parts are cross-compatible with Bryant and Payne since all three brands are manufactured by Carrier Global Corporation. The same physical part is often used across brand labels with different model numbers. To verify: check your Bryant or Payne equipment service manual for cross-compatible part numbers, or email info@nationalhvacparts.com with your model number.
Should I use OEM or aftermarket for my Carrier contactor?
OEM recommended for reliability and warranty compatibility. OEM parts match exact factory specifications for proper fit, performance, and safety. While aftermarket alternatives cost less upfront, the risk of improper fit and reduced lifespan usually makes OEM the better value long-term.
How fast does National HVAC Parts ship?
Orders placed before 3:00 PM CST ship the same business day. Standard delivery is 2–5 business days anywhere in the continental United States. Express shipping available at checkout. We ship from Houston, TX to all 50 states. 30-day return policy on all parts.
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