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Trane

OEM Trane 40A 3-Pole 24VAC Definite Purpose Contactor — SFCTR3P40A24VSA2L

SKU: TRN-SFCTR3P40A24VSA2L Brand: Trane
$32.95 $44.95

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Texas CMBL #19328542014
SAM.gov Registered
Govt POs Accepted

Genuine OEM Trane SFCTR3P40A24VSA2L 3-pole definite purpose contactor rated 40A with a 24VAC control coil. It switches line power to the compressor and outdoor fan on a cooling call; when it wears out you'll see contact chatter, burnt or welded points, and a system that fails to start or won't turn off. This factory-direct replacement ensures the correct rating and fit for your Trane outdoor unit.

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 info@nationalhvacparts.com to initiate a return
  • Refunds processed within 5-7 business days

Frequently Asked Questions

Does this Contactor fit my Trane OEM Trane 40A 3-Pole 24VAC Definite Purpose Contactor — SFCTR3P40A24VSA2L?
Yes. This is the factory-specified OEM contactor for the Trane OEM Trane 40A 3-Pole 24VAC Definite Purpose Contactor — SFCTR3P40A24VSA2L. 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 Trane OEM Trane 40A 3-Pole 24VAC Definite Purpose Contactor — SFCTR3P40A24VSA2L?
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 Trane 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 Trane 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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Mike Rivera
HVAC Parts Specialist — Online