Thermostat for Caterpillar MT855 65C 65D MT845 MT835 MTC855 MTC865 MTC835
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Thermostat for Caterpillar
This thermostat for Caterpillar MT855 65C 65D MT845 MT835 MTC855 MTC865 MTC835 maintains proper engine temperature for reliable operation in these machines.
Overview
This thermostat is a replacement engine coolant component for Caterpillar MT855 65C 65D MT845 MT835 MTC855 MTC865 MTC835, regulating coolant flow to maintain optimal operating temperature. It ensures efficient warm-up and stable thermal conditions, supporting long-term engine health and fuel economy.
Built For Performance
- Precision temperature operation for accurate coolant flow control
- Robust build for high-pressure and high-temp engine environments
- Direct-fit for Caterpillar MT855 65C 65D MT845 MT835 MTC855 MTC865 MTC835
- Prevents overheating and reduces thermal stress
- Enhances warm-up efficiency for lower cold-start emissions
Fits These Machines
- for Caterpillar MT855
- for Caterpillar 65C
- for Caterpillar 65D
- for Caterpillar MT845
- for Caterpillar MT835
- for Caterpillar MTC855
- for Caterpillar MTC865
- for Caterpillar MTC835
On-The-Job Use
- For underground mining trucks where consistent engine heat is vital
- For heavy hauling operations in dusty and hot environments
- For preventive maintenance to avoid cooling system breakdowns
- For replacement during engine rebuilds or major service intervals
Specs At A Glance
| Part Number(s) | Thermostat |
| Compatible Brands | for Caterpillar |
Good To Know
Q: Why is a properly working thermostat important? A: A failing thermostat can cause engine overheating or prolonged cold running, both of which increase wear and fuel consumption. Replacing it with this unit restores stable temperature control.
Q: What should I check before installation? A: Verify the thermostat housing and gasket condition on your Caterpillar model, and confirm that the part number matches your machine's specifications. Proper fitment depends on serial number confirmations.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.