1989 Western Star 5900 Engine Coolant Thermostat
Navigate our online catalogue to find original replacement Engine Coolant Thermostats specifically designed to fit a 1989 Western Star 5900.








Engine Coolant Thermostat
$50.26
In Stock
Condition: New
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
Alternate Temperature Option Temperature 160F Includes seal
Alternate Temperature Option Temperature 160F Includes seal







Engine Coolant Thermostat
$50.26
In Stock
Condition: New
Ships: Monday Oct. 6th
Pick-Up: Ready in 1 Hour Saturday Oct. 4th
Pick-Up: Ready in 1 Hour Saturday Oct. 4th
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
Alternate Temperature Option Temperature 170F Includes seal
Alternate Temperature Option Temperature 170F Includes seal







Engine Coolant Thermostat
$50.26
In Stock
Condition: New
Ships: Monday Oct. 6th
Pick-Up: Ready in 1 Hour Saturday Oct. 4th
Pick-Up: Ready in 1 Hour Saturday Oct. 4th
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
OE Specified Temperature Temperature 180F Includes seal
OE Specified Temperature Temperature 180F Includes seal







Engine Coolant Thermostat
$50.65
In Stock
Condition: New
Ships: Monday Oct. 6th
Pick-Up: Ready in 2-3 Hours Saturday Oct. 4th
Pick-Up: Ready in 2-3 Hours Saturday Oct. 4th
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
Higher Alternate Temperature Replacement Temperature 190F Includes seal
Higher Alternate Temperature Replacement Temperature 190F Includes seal







Engine Coolant Thermostat
$63.23
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Vehicle Fitment Notes:
Alternate Temperature Option Temperature 170F Includes seal
Alternate Temperature Option Temperature 170F Includes seal







Engine Coolant Thermostat
$63.11
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Vehicle Fitment Notes:
OE Specified Temperature 180 Degrees Temperature 180F Includes seal
OE Specified Temperature 180 Degrees Temperature 180F Includes seal







Engine Coolant Thermostat
$63.11
Out of Stock
Condition: New
Required Per Vehicle: 1
Made in USA
Vehicle fitment:
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Engine Base: 14.6L 14636cc 893ci L6 (5.40x6.50; 137.2x165.1);
Vehicle Fitment Notes:
OE Specified Temperature Temperature 180F Includes seal
OE Specified Temperature Temperature 180F Includes seal







Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Engine Base: 12.7L 12686cc 774ci L6 (5.1181x6.2992; 130.0x160.0);
Vehicle Fitment Notes:
Higher Alternate Temperature Replacement Temperature 190F Includes seal
Higher Alternate Temperature Replacement Temperature 190F Includes seal