OEM Carrier Gas Valve 24V 3/4" x 3/4" Single Function for Model YAC36100YAC105A

This is the factory-specified OEM combination gas valve for the Carrier YAC36100YAC105A furnace, cross-referenced under part numbers 36C21-411 (White-Rodgers / Emerson) and EF26CK201 (Carrier OEM). The gas valve is the heart of your furnace's fuel delivery system — it receives the 24 VAC signal from the control board and opens to allow natural gas or propane to flow to the burners. When it fails, the most common symptoms are a complete no-heat condition, a furnace that attempts ignition but never fires, or a unit that locks out after one or more failed ignition cycles with no gas odor at the burners.

• Specs: 24 VAC coil | 3/4" inlet x 3/4" outlet | 0.23A draw | 1/2 PSI max | Single function | Side taps | Natural gas & LP compatible | Replaces 36C21-411 and EF26CK201
• OEM vs Generic: This is a genuine OEM-matched valve built to exact factory tolerances for gas flow rate, opening speed, and pressure regulation. Aftermarket substitutes may not meet the original valve's 1/2 PSI shutoff spec, creating unsafe operating conditions and potentially voiding equipment warranties.
• Install difficulty: 3/5 — Gas valve replacement requires shutting off the gas supply and verifying zero pressure before disconnecting. Tools needed: adjustable wrench, pipe thread sealant (gas-rated), 1/4" nut driver, multimeter for coil voltage verification. Always leak-test all fittings with approved gas leak detector solution after reinstallation. Recommend a qualified HVAC technician for this repair.
• Warranty: 1-year OEM warranty against manufacturing defects. In stock and ships same business day from our warehouse.

Compatibility: Factory-matched replacement for Carrier model YAC36100YAC105A. Cross-references: White-Rodgers / Emerson 36C21-411 and Carrier OEM EF26CK201. Verify your unit's gas type (natural gas or LP) and inlet/outlet pipe size against your data plate before ordering. Not sure this is the right part? Our HVAC parts specialists verify fitment before you buy — contact us today and get your heat back on fast.