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2018 Lexus IS300
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Price Match Guarantee
60-Day Returns
Lifetime Replacement
Price Match Guarantee
60-Day Returns
Lifetime Replacement
2018 Lexus IS300

2018 Lexus IS300 Thermostats

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Thermostat Housing - Plastic, Direct Fit, Sold individually, Gas, Includes Sensor and Gasket
Replacement
Thermostat Housing - Plastic, Direct Fit, Sold individually, Gas, Includes Sensor and Gasket
Part Number: RL31800001
Guaranteed to Fit
$15.49
Vehicle Fitment
  • 2018 Lexus IS300 F Sport 6 Cyl 3.5L Includes Gasket/Seal, Includes Thermostat, Temperature 180
  • 2018 Lexus IS300 Base 6 Cyl 3.5L Includes Gasket/Seal, Includes Thermostat, Temperature 180
Product Details
Notes : Upper Housing (Water Outlet)Replaces OE Number : 1603131020Quantity Sold : Sold individuallyWarranty : 1-year Replacement unlimited-mileage warrantyProp 65 Warning :

Warning SymbolWARNING: This product can expose you to chemicals including Lead, 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 DegreesInterchange Part Number : 1430879, 1603131020Material : PlasticProduct Fit : Direct FitReturns Policy : 30-Day Return Policy
Thermostat
Beck Arnley®
Thermostat
Part Number: BEC1430971
Guaranteed to Fit
$38.49
Vehicle Fitment
  • 2018 Lexus IS300 F Sport 4 Cyl 2.0L Outer (Toward Lower Radiator Coolant Hose), Temperature 180
  • 2018 Lexus IS300 Base 4 Cyl 2.0L Outer (Toward Lower Radiator Coolant Hose), Temperature 180
Product Details
Quantity Sold : Sold individuallyWarranty : 1 year or 12,000-mile Beck Arnley 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.

Recommended Use : OE Replacement
Thermostat
Motorad®
Thermostat
Part Number: MRD1064-172
Guaranteed to Fit
$33.99
Vehicle Fitment
  • 2018 Lexus IS300 F Sport 4 Cyl 2.0L Temperature 172F; Inner Replacement; Beneath Water Pump Housing; Oe Specified Temperature
  • 2018 Lexus IS300 Base 4 Cyl 2.0L Temperature 172F; Inner Replacement; Beneath Water Pump Housing; 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 : 172 degrees FRecommended Use : OE Replacement
Beck Arnley OE Replacement Thermostat
Beck Arnley®
Beck Arnley OE Replacement Thermostat
Part Number: BEC1430879
Guaranteed to Fit
$69.49
Vehicle Fitment
  • 2018 Lexus IS300 F Sport 6 Cyl 3.5L Includes Gasket/Seal, Includes Thermostat, Temperature 180
  • 2018 Lexus IS300 Base 6 Cyl 3.5L Includes Gasket/Seal, Includes Thermostat, Temperature 180
Product Details
Notes : Includes housingQuantity Sold : Sold individuallyWarranty : 1 year or 12,000-mile Beck Arnley 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 DegreesSeries : Beck Arnley OE ReplacementInterchange Part Number : RL31800001Material : Stainless SteelRecommended Use : OE Replacement
Gates OE Replacement Thermostat
Gates®
Gates OE Replacement Thermostat
Part Number: GAT34711
Guaranteed to Fit
$60.99
Vehicle Fitment
  • 2018 Lexus IS300 F Sport 6 Cyl 3.5L GAS, 180 Degree
  • 2018 Lexus IS300 Base 6 Cyl 3.5L GAS, 180 Degree
Product Details
Notes : 1.26 in. outside ID; 1.5 in. outside OD; Includes jiggle pin; With (1) seal and (3) bolt holes; Integrated housing thermostat typeQuantity 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
Page 1 of 1 | Showing 1 - 5 of 5 results

Top Rated Products

Replacement Thermostat Housing - Plastic, Direct Fit, Sold individually, Gas, Includes Sensor and Gasket
$15.73( Review)
Part fit perfectly, no issues!!!
Amber R.
VERIFIED PURCHASER

Popular Products

Product Questions & Answers

Gates Gates OE Replacement Thermostat
$60.99
Q:Would I need any other part replacing the thermostat?
Smokdaddy
A:BEST ANSWERHi Joseph, I'm happy to assist you. If all the other components are in good condition, then you only need to replace the thermostat and the coolant. Take advantage of our 30-day price match guarantee. Click this link to order this part: https://www.carparts.com/thermostat/gates/gat34711?can=CPAP3648 I hope this helps. Enjoy shopping at Carparts.com! Show less
Aldrin P.
 
1 Question, 1 AnswerView all Q&As >

Helpful Automotive Resources

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What Does Check Gauges Mean?
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What Causes a Car to Overheat When Idling?
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Why Is My Car Heater Not Blowing Hot Air?
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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.