Can Coleman-Mach Single Zone Digital Thermostat Replace 9420-351
Updated 08/01/2026 | Published 07/27/2026
Question:
I want a digital replacement for our analog thermostat which is a Colman Mach 9420-351. We have a AC furnace system. I am looking at the CM76R. Is it compatible?
asked by: Steven J
Expert Reply:
Hey Steven! Yes, the Coleman-Mach Digital Thermostat # CM76RR will work as a replacement for your Coleman-Mach 9420-351 analog thermostat. Just make sure you have a single-zone AC and furnace system. This gives you the same basic heat and cool functions as your current thermostat, just with a digital display and more precise temperature control.
What kind of RV or trailer do you have?
(click to enlarge)
Product Page this Question was Asked From
Single Zone Digital Thermostat for Coleman-Mach RV Air Conditioners - Black
- Accessories and Parts
- RV Air Conditioners
- Thermostat
- Black
- Coleman-Mach
more information >
Featured Help Information
Miscellaneous Media
Continue Researching
- Shop: Flow-Through Tire Sensors for RoadTech TPMS - Qty 2
- Shop: Furrion Vision S+ Wireless RV Backup System w/ 1 Camera - 5" Screen
- Search Results: ice cube trays kitchen accessories
- Shop: Single Zone Digital Thermostat for Coleman-Mach RV Air Conditioners - Black
- Search Results: rv air conditioners
- Search Results: rv mattress
- Search Results: accessories and parts
- Search Results: rv mattress accessories and parts
- Search Results: thermostats
- Q&A: What's the RV Designer Motorhome Entrance Door Lock w/ Deadbolt RD68SR Made of?
- Search Results: shackle kit
- Shop: RV Designer Motorhome Entrance Door Lock w/ Deadbolt - Black
- Shop: Coleman-Mach Mach-C Everest Thermostat
- Shop: Base Plate for Tow Bar
- Video: A Closer Look at the Coleman-Mach RV Air Conditioner Single Zone Digital Thermostat
- Video: Review of Coleman-Mach Single Zone Digital Thermostat RV Air Conditioner - CM76RR
- Q&A: Can Single Zone Digital Thermostat Run Furnace
- Shop: etrailer Invisible Base Plate Kit - Removable Arms
- Shop: Screen Defender Screen Protector for Lippert RV Entry Doors - Fits Doors 24" Wide
- Video: Roadmaster Automatic Battery Disconnect Installation - 2023 Chevrolet Trailblazer
- Shop: Vehicle Tow Bar Wiring
- Q&A: Thermostat Upgrade Fitment for a Coleman Mach 9203C876 Polar Mach AC Unit
- Q&A: How To Choose The Correct Leaf Spring U-Bolt Diameter Size On A Trailer Axle
- Shop: Fifth Wheel Hitch
- Q&A: Parts Needed to Flat Tow 2026 Buick Encore GX Avinir
- Video: Review of Cummins Onan EC-AGS Plus Auto Generator Start System - CM96MR
- Shop: Roof Rack
- Q&A: Recommended Bike Rack and Dual Hitch Adapter for Carrying E-Bikes While Flat Towing
- Q&A: Does The Coleman-Mach Signature Mach CM42RR Include A Control Box?
- Article: How to Tell the Weight Rating of a Trailer Axle
Steven J.
8/1/2026
Thank you. Precise temperature control is what I’m looking for. The analog version is all over the place.