Thermostat 1603131020 for Toyota Lexus
1603131020 - Engine parts
Price Details
Dealer Price ≠ Your Price
Official dealer price is only a benchmark. Your LongTop quote may be 40-50% lower.
| Brand | Manufacturer | Cost (Excl. Tax, USD) | Cost (Incl. Tax, USD) | Sales (Excl. Tax, USD) | Sales (Incl. Tax, USD) | Longtop Supply Quote |
|---|---|---|---|---|---|---|
| FAW Toyota | Toyota | - | - | $25.04 | $28.30 | Check Better Price |
| GAC Toyota | Toyota | - | - | $25.95 | $29.33 | Check Better Price |
| Imported Toyota | Toyota | - | - | $26.08 | $29.47 | Check Better Price |
| Lexus | Lexus | $19.52 | $22.05 | $26.08 | $29.47 | Check Better Price |
Compatible Models
Vehicle models currently mapped to this OE part.
| # | Brand | Model |
|---|---|---|
| 1 | Lexus | LEXUS GS SERIES - 201201 - 202007 - ARL10,AWL10,GRL1#,GWL10 |
| 2 | Lexus | LEXUS GS30/35/43/460 - 200501 - 201112 - GRS19#,URS190,UZS190 |
| 3 | Lexus | LEXUS GS450H - 200602 - 201112 - GWS191 |
| 4 | Lexus | LEXUS IS2###/3### - 201304 - ASE30,AVE30,GSE3 |
| 5 | Lexus | LEXUS IS250/300 - 200604 - 201304 - GSE2 |
| 6 | Lexus | LEXUS IS250/350/2##D - 200508 - 201304 - ALE20,GSE2 |
| 7 | Lexus | LEXUS IS250C/300C - 200904 - 201507 - GSE2 |
| 8 | Lexus | LEXUS IS350/300/300H/250/200T - 201304 - ASE30,AVE30,GSE3 |
| 9 | Lexus | LEXUS RC3###/200T - 201409 - ASC10,AVC10,GSC10 |
| 10 | Lexus | LEXUS RC350/300H/300/200T - 201409 - ASC10,AVC10,GSC10 |
| 11 | Lexus | LEXUS GS SERIES - 201112 - 202007 - ARL10,AWL10,GRL1#,GWL10 |
| 12 | Lexus | LEXUS GS460/430/350 - 200508 - 201112 - GRS19#,UZS190,URS190 |
| 13 | Lexus | LEXUS IS SERIES - 201304 - ASE30,AVE3#,GSE3#,USE3 |
| 14 | Lexus | LEXUS IS250/350 - 200508 - 201304 - GSE2 |
| 15 | Lexus | LEXUS IS250C/350C - 200904 - 201408 - GSE2 |
| 16 | Lexus | LEXUS RC SERIES - 201409 - ASC10,AVC10,GSC10 |
| 17 | Lexus | LEXUS GS SERIES - 201201 - 201809 - ARL10,AWL10,GRL1#,GWL10 |
| 18 | Lexus | LEXUS IS2###/3### - 201304 - ASE30,AVE30,GSE30 |
| 19 | Lexus | LEXUS IS250C - 200904 - 201507 - GSE20 |
| 20 | Lexus | LEXUS RC3###/200T - 201409 - 202008 - ASC10,AVC10,GSC10 |
| 21 | Lexus | LEXUS GS SERIES - 200501 - 201112 - GRS19#,URS190,UZS190 |
| 22 | Lexus | LEXUS GS SERIES - 201112 - 202007 - ARL10,GRL1#,GWL10 |
| 23 | Lexus | LEXUS IS SERIES - 201304 - ASE30,GSE3#,USE30 |
| 24 | Lexus | LEXUS IS250C/350C - 200904 - 201507 - GSE2 |
| 25 | Lexus | LEXUS RC350/300/200T - 201409 - ASC10,GSC1 |
| 26 | Toyota | MARK X - 201112 - 201611 - GRX130 |
| 27 | Toyota | CROWN (CHINA) - 200502 - 200911 - GRS18 |
| 28 | Toyota | CROWN (CHINA) - 200912 - 201501 - GRS20#,UZS200 |
| 29 | Toyota | CROWN (CHINA) - 201501 - 202004 - ARS212,GRS218 |
| 30 | Toyota | CROWN - 200411 - 200802 - GRS182 |
| 31 | Toyota | CROWN - 201009 - 201212 - GRS202 |
| 32 | Toyota | REIZ - 200510 - 201009 - GRX12 |
| 33 | Toyota | REIZ - 201009 - 201709 - GRX13 |
| 34 | Toyota | MARK X - 200411 - 200909 - GRX12 |
| 35 | Toyota | MARK X - 200910 - 201912 - GRX13 |
| 36 | Toyota | CROWN - 200802 - 201212 - GRS20#,GWS204 |
| 37 | Toyota | CROWN/HYBRID - 201212 - 201804 - ARS210,AWS21#,GRS21#,GWS214 |
| 38 | Toyota | CROWN/MAJESTA - 200312 - 200812 - GRS18#,UZS18 |
How to
Common Issues
How do I confirm this thermostat fits my vehicle?
To ensure accurate fitment, please provide your vehicle's 17-digit VIN. Our specialists will cross-reference your chassis and engine details against the official parts catalog to verify that 1603131020 is the correct component for your specific Toyota or Lexus model.
What are the symptoms of a failing thermostat?
Common symptoms include the engine taking too long to warm up, the temperature gauge fluctuating abnormally, or the engine overheating during operation. If you notice coolant leaks near the housing or inconsistent cabin heating, the thermostat may be stuck and require immediate inspection or replacement.
Do you offer support for wholesale and bulk orders?
Yes, we provide dedicated support for wholesale distributors and repair shops. We handle bulk inquiries with professional care and offer reliable shipping solutions to destinations worldwide. Please reach out to our sales team with your specific part requirements and volume needs for further assistance.
Installation Guide
Preparation
Ensure the engine is completely cool before starting any work on the cooling system. Gather the necessary hand tools, a drain pan for coolant, and a clean workspace. Always wear appropriate safety gear and consult your vehicle's service manual for specific safety precautions regarding pressurized cooling systems.
Remove Old Part
Locate the thermostat housing, place a drain pan underneath, and carefully remove the housing bolts. Drain the excess coolant into the pan to prevent spills. Remove the old thermostat and clean the mating surfaces thoroughly to ensure a proper seal for the new gasket and component.
Install New Genuine Part
Position the new genuine thermostat into the housing, ensuring the orientation matches the original. Install a new gasket if required, secure the housing bolts to the specified tightness, and refill the cooling system with the correct coolant. Bleed the system of air and check for any signs of leakage.
Product Description
Main Description
The thermostat 1603131020 is a critical component of your vehicle's cooling system, responsible for regulating coolant flow to maintain optimal engine operating temperatures. Over time, the internal wax element can degrade, leading to a stuck-open or stuck-closed position. A malfunctioning unit often results in engine overheating or failure to reach operating temperature, which can negatively impact fuel efficiency and long-term engine health. Replacing a failing unit with this 100% Genuine New part ensures your cooling system functions exactly as the manufacturer intended.
We prioritize accuracy for every order, which is why we strongly recommend VIN verification before purchase to ensure this part matches your specific engine and chassis configuration. Our team provides comprehensive support for retail buyers, repair shops, and wholesale distributors worldwide. Whether you are performing a routine cooling system service or addressing a specific temperature issue, we are here to assist with your procurement needs and provide reliable logistics support for your genuine parts requirements.
Fitment Note
Fitment for this thermostat is highly specific to the engine type, production year, and regional market specifications. Because Toyota and Lexus utilize various cooling configurations across different chassis codes, the OE number alone may not guarantee compatibility. Please provide your full 17-digit VIN to confirm this part is correct for your vehicle.
Buyer Note
We support a wide range of customers, including independent repair shops, automotive parts distributors, and individual retail buyers. We offer flexible order handling and professional shipment support to ensure your parts arrive safely. Please contact our team with your requirements to discuss how we can assist with your specific supply chain needs.
Disclaimer
Notice: Fitment may vary by model, chassis, engine, and production year. Please verify your VIN with us before purchasing to ensure correct fitment.
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