+5% Tax • Shipping calculated at checkout.
U.S. Duties/Taxes, if applicable, may be due at time of delivery.
Pickup available at 75 Blue Mountain St #3, Coquitlam
Usually ready in 24 hours
Not sure this fits your furnace? Call us — we're happy to help
This high-capacity 75VA transformer is a critical electrical component designed for HVAC systems and industrial control circuits. It efficiently steps down high incoming line voltage (208V or 230V) to the standard 24V required to power thermostats, relays, and integrated control boards. Ideal for residential and commercial heating and cooling equipment, this replacement transformer ensures your system's control circuit receives consistent, reliable power. Whether you are troubleshooting a furnace that won't start or an air conditioner with no power to the thermostat, this 50/60Hz versatile transformer is a robust solution for restoring system functionality. Its 75VA rating provides ample power for complex systems with multiple secondary loads.
Our team is happy to help you verify compatibility before you order. We'll confirm it fits your specific furnace model.
1-778-759-9864Mon–Sat 8AM–5PM PT · Or email parts@bcfurnace.com
Compatible parts and related replacements
The 121-913 is a replacement part. Match your furnace model number on our site to confirm the fit. This electrical-transformers-relay is backed by our 100% compatibility guarantee — if it doesn't fit your furnace, we'll make it right.
The easiest way is to match the part number (121-913) with your furnace model number. Visit the homepage and enter your model number in the search bar — our system will show all compatible electrical-transformers-relay for your specific unit. You can also call our technicians at 1-778-759-9864 for free compatibility verification.
Most electrical-transformers-relay including the 121-913 ship within 1–2 business days from our warehouse. We ship across Canada and the United States, and worldwide, with tracking on every order. For urgent furnace repairs, contact us at 1-778-759-9864 for expedited shipping options.
Yes! Local pickup is available at our Coquitlam, BC location: 75 Blue Mountain St #3. electrical-transformers-relay orders are usually ready within 24 hours. Call us at 1-778-759-9864 to confirm the 121-913 is in stock before visiting.
Still not sure this is the right part? Call 1-778-759-9864 and we will check your model number with you.
The model number is on the rating plate inside the furnace door.
84 more not shown. Check your own model number above.
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