Coleman Mach Room Temperature Sensor, Black 6537-3191
Coleman Mach Room Temperature Sensor, Black 6537-3191 — Product description
The Coleman 6537-3191 is the black room temperature sensor that pairs with Coleman Mach RV thermostats. It reads cabin air temperature so your rooftop air conditioner cycles to the setting you dialed in. A simple, low-cost replacement part when the original sensor fails or you want a black finish to match your thermostat.
If your Coleman Mach thermostat isn't holding temperature right, the room sensor is often the culprit. This is the black 6537-3191 replacement sensor built to work with Coleman Mach thermostat systems. It's the small component that actually measures the cabin air, then tells the thermostat whether to call for cooling or heat.
We see these fail after years of RV vibration and temperature swings. When they do, the AC either short-cycles or runs well past your set point. Swapping in a fresh sensor usually sorts it out. It's an inexpensive part that makes a real difference in how your rig holds a comfortable temperature on a hot afternoon.
The black finish matches darker thermostat trim and interior panels. If you're running a Coleman Mach rooftop unit and chasing down a comfort problem, this is a cheap, sensible first thing to check and replace.
Key Features
- Reads cabin air temperature so your Coleman Mach thermostat cycles the AC accurately
- Direct replacement, part number 6537-3191, for Coleman Mach thermostat systems
- Black finish matches darker thermostat trim and interior panels
- Low-cost first fix for short-cycling or inaccurate temperature control
Why Buy from NVN Marine
- Authorized Coleman reseller, full manufacturer warranty
- NMEA member and ABYC certified, advice from real boat techs
- Same-day shipping before 3 PM ET on in-stock items
- NY headquarters and Fort Lauderdale flagship retail store
Technical specifications
| Title | Coleman Mach Thermostat Room Temperature Sensor, Black |
|---|---|
| Brand | Coleman |
| Manufacturer Part Number | 6537-3191 |
| UPC | 755790406807 |
| Color | Black |
| Product Type | Room Temperature Sensor |
| Compatibility | Coleman Mach Thermostat |
Frequently asked questions
What does this sensor do?
It measures the cabin air temperature and feeds that reading to your Coleman Mach thermostat, which decides when to run the air conditioner or heat. Without an accurate sensor, the system can short-cycle or overshoot your set temperature.
Will this work with my Coleman Mach thermostat?
It's made for use with Coleman Mach thermostat systems. Confirm your thermostat uses part 6537-3191 before ordering, since Coleman has used different sensors across model years.
What color is it?
Black. It's the same sensor function as the lighter versions, just finished to match darker thermostat trim and interior panels.
Is this hard to replace?
Not usually. It's a small sensor that connects to your existing Coleman Mach thermostat wiring. If you're comfortable working behind the thermostat, it's a quick swap. Otherwise any RV tech can handle it in a few minutes.