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1999 Cadillac Seville
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1999 Cadillac Seville

1999 Cadillac Seville Thermostats

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UltraStat Series Thermostat
Motorad®
UltraStat Series Thermostat
Part Number: MRD5339-180
Guaranteed to Fit
$25.99
Vehicle Fitment
  • 1999 Cadillac Seville STS 8 Cyl 4.6L Temperature 180F; Oe Specified Temperature
  • 1999 Cadillac Seville SLS 8 Cyl 4.6L Temperature 180F; Oe Specified Temperature
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 degrees FSeries : UltraStat SeriesRecommended Use : OE Replacement
Fail-Safe Series Thermostat
Motorad®
Fail-Safe Series Thermostat
Part Number: MRD7339-180
Guaranteed to Fit
$21.99
Vehicle Fitment
  • 1999 Cadillac Seville STS 8 Cyl 4.6L Temperature 180F; Oe Specified Temperature
  • 1999 Cadillac Seville SLS 8 Cyl 4.6L Temperature 180F; Oe Specified Temperature
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 degrees FSeries : Fail-Safe SeriesRecommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD339-180
Guaranteed to Fit
$17.49
Vehicle Fitment
  • 1999 Cadillac Seville STS 8 Cyl 4.6L Temperature 180F; With Thermostat and Seal; Oe Specified Temperature
  • 1999 Cadillac Seville SLS 8 Cyl 4.6L Temperature 180F; With Thermostat and Seal; Oe Specified Temperature
Product Details
Quantity Sold : Sold individuallyWarranty : 12-month Motorad limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 180 DegreesRecommended Use : OE Replacement
Gates OE Replacement Thermostat
Gates®
Gates OE Replacement Thermostat
Part Number: GAT33808
Guaranteed to Fit
$16.49
Vehicle Fitment
  • 1999 Cadillac Seville STS 8 Cyl 4.6L GAS, 180 Degree
  • 1999 Cadillac Seville SLS 8 Cyl 4.6L GAS, 180 Degree
Product Details
Notes : 1.38 in. by-pass flange diameter; 1.38 in. depth from flange; 2.28 in. flange diameter; 0.73 in. H from flange; With (1) seal; Bottom by-pass design; OE type thermostatQuantity Sold : Sold individuallyWarranty : Lifetime Gates limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Promotions : Cooling EssentialsOpening Temperature Rating : 180 DegreesSeries : Gates OE ReplacementMaterial : Stainless SteelRecommended Use : OE Replacement
GM Original Equipment Series Thermostat
AC Delco®
GM Original Equipment Series Thermostat
Part Number: AC131128
Guaranteed to Fit
$47.49
Vehicle Fitment
  • 1999 Cadillac Seville STS 8 Cyl 4.6L
  • 1999 Cadillac Seville SLS 8 Cyl 4.6L
Product Details
Notes : Gasket not includedQuantity Sold : Sold individuallyWarranty : 24-months or unlimited mile AC Delco limited warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemical which is known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.

Opening Temperature Rating : 82 degrees CSeries : GM Original Equipment SeriesInterchange Part Number : REPC318003, 33009SMaterial : Stainless SteelRecommended Use : OE Replacement
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AC Delco GM Original Equipment Series Thermostat
$47.49( Review)
Perfect fit easy install
Nasiaah B.
VERIFIED PURCHASER

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Product Questions & Answers

AC Delco GM Original Equipment Series Thermostat
$47.49
Q:does it come with o ring ?
Anthony N.
A:BEST ANSWERHi Anthony, I'm glad to assist you. No, it doesn't. It is sold separately on this link: https://www.carparts.com/thermostat-gasket/ac-delco/ac12574478?can=CPAE1047_CSQA_20231115 I hope this helps, and if you're interested in this thermostat, you can click on the link below for direct ordering to take advantage of our ongoing discount and limited stocks. Happy shopping. https://www.carparts.com/thermostat/ac-delco/ac131128?can=CPAE1047_CSQA_20231115 Show less
Arnel E.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

P0597 Code: Thermostat Heater Control Circuit / Open
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What Does It Mean When the Engine Is Hot While the AC Is Off?
What Does It Mean When the Engine Is Hot While the AC Is Off?If you’re wondering how your engine gets so hot even if the air conditioning is off, then there are many explanations as to why. Usually, it’s due to a lack of coolant. In other cases, the culprit for an overheating engine is broken parts. Here are some of the potential
What Does Check Gauges Mean?
What Does Check Gauges Mean?The check gauge light is usually triggered once the PCM detects something reading that’s outside normal parameters. These readings include: Coolant TemperatureEngine RPMFuel LevelOil PressureTransmission temperatureTire PressureWheel SpeedVoltmeter Common Triggers of the Check Gauges Light
What Causes a Car to Overheat When Idling?
What Causes a Car to Overheat When Idling?Leaving your AC running may contribute to this problem because the car’s AC forces the engine to work harder. These factors combined can make the engine overheat very quickly. A simple solution would be to turn off the AC in hopes of lowering the temperature of the engine, but if
Why Is My Car Heater Not Blowing Hot Air?
Why Is My Car Heater Not Blowing Hot Air?The heater core distributes heat, blowing it into the air with a blower fan. In many ways, you could compare the heater core to a radiator because they are both heat exchangers. Damaged heater cores often go hand in hand with coolant problems.
Where Is the Thermostat Located?
Where Is the Thermostat Located?Have you driven your vehicle recently? Because if the answer’s yes, you’ll want to turn off the engine and let it cool down before trying to access the thermostat. This is because you’ll have to unclamp your radiator hose and drain your coolant before you can get to your thermostat.