1999 Pontiac Firebird Engine Coolant Thermostats
Save up to 40% on original replacement 1999 Pontiac Firebird Engine Coolant Thermostats. Navigate our online catalogue to find Engine Coolant Thermostats and other parts designed specifically to fit a 1999 Pontiac Firebird.
Engine Coolant Thermostat
$21.44
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: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
Alternate Temperature Option Temperature 180F
Alternate Temperature Option Temperature 180F
Engine Coolant Thermostat
$21.44
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: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
Alternate Temperature Option Temperature 180F Includes thermostat
Alternate Temperature Option Temperature 180F Includes thermostat
Engine Coolant Thermostat
$21.44
10+ 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: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
OE Specified Temperature Temperature 192F
OE Specified Temperature Temperature 192F
Engine Coolant Thermostat
$21.44
10+ 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: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
OE Specified Temperature Temperature 192F Includes thermostat
OE Specified Temperature Temperature 192F Includes thermostat
Engine Coolant Thermostat
$41.70
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: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature 160F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature 160F Includes seal
Engine Coolant Thermostat
$41.70
Limited Stock
Ships: Same or Next Business Day
Pick-Up: Same Business Day (Order before 12pm)
Pick-Up: Same Business Day (Order before 12pm)
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature 180F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature 180F Includes seal
Engine Coolant Thermostat
$41.70
10+ 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: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 187F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 187F Includes seal
Engine Coolant Thermostat
$41.70
10+ 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: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 187F Includes thermostat and seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 187F Includes thermostat and seal
Engine Coolant Thermostat
$34.04
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: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
OE Specified Temperature Temperature 192F
OE Specified Temperature Temperature 192F
Engine Coolant Thermostat
$31.46
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: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 187F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 187F Includes seal
Engine Coolant Thermostat
$33.17
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: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
OE Specified Temperature "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." Temperature 192F
OE Specified Temperature "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." Temperature 192F
Engine Coolant Thermostat
$34.35
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: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." Temperature 187F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." Temperature 187F Includes seal
Engine Coolant Thermostat
$33.34
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature
Engine Coolant Thermostat
$33.34
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 187F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 187F Includes seal
Engine Coolant Thermostat
$33.34
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 190F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 190F Includes seal
Engine Coolant Thermostat
$32.48
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Engine Base: 3.8L 3800cc 231ci V6 (3.80x3.40; 96.5x86.4);
Vehicle Fitment Notes:
Alternate Temperature Option "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." Temperature 180F
Alternate Temperature Option "The patented Fail-Safe (R) thermostat is the only thermostat on the market designed to lock in the open position, allowing coolant to continue to flow in the event of overheating." Temperature 180F
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature 160F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature 160F Includes seal
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature 180F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature 180F Includes seal
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature-180F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only Alternate Temperature Option Temperature-180F Includes seal
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 190F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 190F Includes seal
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature
Engine Coolant Thermostat
Call for Pricing
Out of Stock
Condition: New
Required Per Vehicle: 1
Required Per Vehicle: 1
Vehicle fitment:
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Engine Base: 5.7L 350ci V8 (3.90x3.62; 99.0x92.0);
Vehicle Fitment Notes:
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 190F Includes seal
with Replacement Late Model Water Pump Requiring Seperate Thermostat and Housing; Thermostat Only OE Specified Temperature Temperature 190F Includes seal