1991 Thomas Bus Engine Coolant Thermostats
Save up to 40% on original replacement 1991 Thomas Bus Engine Coolant Thermostats. Navigate our online catalogue to find Engine Coolant Thermostats and other parts designed specifically to fit a 1991 Thomas Bus.








Engine Coolant Thermostat
$37.39
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 10.4L 636ci V8;
Engine Base: 10.4L 636ci V8;
Vehicle Fitment Notes:
OE Specified Temperature 180 Degrees Temperature 180F
OE Specified Temperature 180 Degrees Temperature 180F







Engine Coolant Thermostat
$37.39
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 403ci L6;
Engine Base: 6.6L 403ci L6;
Vehicle Fitment Notes:
OE Specified Temperature 180 Degrees Temperature 180F
OE Specified Temperature 180 Degrees Temperature 180F







Engine Coolant Thermostat
$37.69
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 10.4L 636ci V8;
Engine Base: 10.4L 636ci V8;
Vehicle Fitment Notes:
OE Specified Temperature 190 Degrees Temperature 190F
OE Specified Temperature 190 Degrees Temperature 190F







Engine Coolant Thermostat
$37.69
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 6.6L 403ci L6;
Engine Base: 6.6L 403ci L6;
Vehicle Fitment Notes:
OE Specified Temperature 190 Degrees Temperature 190F
OE Specified Temperature 190 Degrees Temperature 190F







Engine Coolant Thermostat
$20.97
In Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Vehicle Fitment Notes:
OE Specified Temperature 180 Degrees Temperature 180F
OE Specified Temperature 180 Degrees Temperature 180F







Engine Coolant Thermostat
$20.97
In Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Vehicle Fitment Notes:
OE Specified Temperature 180 Degrees Temperature 180F Includes thermostat
OE Specified Temperature 180 Degrees Temperature 180F Includes thermostat







Engine Coolant Thermostat
$61.04
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 8.3L 8268cc 504ci L6 (4.49x5.31; 114.0x135.0);
Engine Base: 8.3L 8268cc 504ci L6 (4.49x5.31; 114.0x135.0);
Vehicle Fitment Notes:
OE Specified Temperature 160 Degrees Temperature 160F Includes seal
OE Specified Temperature 160 Degrees Temperature 160F Includes seal







Engine Coolant Thermostat
$72.97
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 8.3L 8268cc 504ci L6 (4.49x5.31; 114.0x135.0);
Engine Base: 8.3L 8268cc 504ci L6 (4.49x5.31; 114.0x135.0);
Vehicle Fitment Notes:
OE Specified Temperature 180 Degrees Temperature 180F Includes seal
OE Specified Temperature 180 Degrees Temperature 180F Includes seal







Engine Coolant Thermostat
$50.26
Limited Stock
Ships: Next Business Day
Pick-Up: Next Business Day
Pick-Up: Next Business Day
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Vehicle Fitment Notes:
OE Specified Temperature 160 Degrees Temperature 160F Includes seal
OE Specified Temperature 160 Degrees Temperature 160F Includes seal







Engine Coolant Thermostat
$50.26
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Vehicle Fitment Notes:
OE Specified Temperature 170 Degrees Temperature 170F Includes seal
OE Specified Temperature 170 Degrees Temperature 170F Includes seal







Engine Coolant Thermostat
$50.26
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Pick-Up: Ready in 1 Hour Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Vehicle Fitment Notes:
OE Specified Temperature 180 Degrees Temperature 180F Includes seal
OE Specified Temperature 180 Degrees Temperature 180F Includes seal







Engine Coolant Thermostat
$50.65
In Stock
Ships: Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Pick-Up: Ready in 2-3 Hours Monday Sep. 22nd
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Vehicle Fitment Notes:
OE Specified Temperature 190 Degrees Temperature 190F Includes seal
OE Specified Temperature 190 Degrees Temperature 190F Includes seal






Engine Coolant Thermostat
$17.50
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Vehicle Fitment Notes:
OE Specified Temperature 160 Degrees Temperature 160F
OE Specified Temperature 160 Degrees Temperature 160F







Engine Coolant Thermostat
$17.50
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Engine Base: 5.9L 359ci L6 (4.02x4.72; 102.0x120.0);
Vehicle Fitment Notes:
OE Specified Temperature 190 Degrees Temperature 190F
OE Specified Temperature 190 Degrees Temperature 190F







Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Engine Base: 9.0L 9047cc 552ci V6 (4.84x5.00; 122.9x127.0);
Vehicle Fitment Notes:
OE Specified Temperature 190 Degrees Temperature 190F Includes seal
OE Specified Temperature 190 Degrees Temperature 190F Includes seal