Equipment Interface Module | THM5421R1021
All sales are final
No returns or exchanges. Read our policy
Not sure it fits? Call (916) 729-3117 and we'll confirm at no charge.
Fast Shipping:Ships within 1 business day
Specifications
Specifications
- Part Number
- ERTHM5421R1021
- Manufacturer Part Number
- THM5421R1021
- Part Type
- Control boards
- Compatible Brands
- Honeywell
- Replaces Part Numbers
- L46-683
Product Details
Product Details
The Equipment Interface Module THM5421R1021 is a crucial component for your HVAC system. It is designed to work seamlessly with Prestige IAQ and RedLINK VisionPRO thermostats, providing advanced control and connectivity. This module is connected and exclusively compatible with the TH8321R1001 RedLINK Enabled VisionPRO® 8000 Thermostat L46-660 and corresponding RedLINK accessories. Installation is a breeze and can be done in under 30 minutes with common tools.
Trust Appliance Parts Center – a family-owned store in Sacramento with 25+ years of experience and a huge in-stock inventory.
We know appliances inside and out and will help you find the right part with expert, honest advice.
Cross Reference Information
Cross Reference Information
Part Number THM5421R1021 replaces:
- L46-683
Genuine Honeywell home part. Fits Honeywell and other models using this part number.
Your payment information is processed securely. We do not store credit card details nor have access to your credit card information.

