How much does it cost to replace a radiator in a Lexus ES 350?

Replacing a radiator in a Lexus ES 350 typically costs about $500 to $1,400, depending on parts and labor.

This article explains the price breakdown, what factors influence the total, and practical tips to estimate and save on the replacement.

Cost Breakdown

Prices break down into two main buckets: parts and labor, with optional add-ons such as coolant, hoses, and a thermostat. The ranges below reflect common U.S. market prices in 2025.

Parts and Materials

Below are typical price ranges for the radiator and related components. Note that OEM (dealer) parts cost more than aftermarket equivalents, and some ES 350 years use slightly different radiators.

• OEM radiator: $350–$700+


• Aftermarket radiator: $160–$450


• Coolant (new): $8–$25


• Hoses and clamps: $5–$60


• Thermostat and sensor (if replaced): $15–$60


• Radiator cap (if needed): $5–$25

Part costs can vary widely based on whether you choose genuine Lexus parts or reputable aftermarket equivalents, as well as the specific radiator design for your ES 350 year and engine setup.

Labor and Installation Time

Labor covers the time to drain coolant, remove the old radiator, install the new one, refill and bleed the cooling system, and run tests. Rates and labor times vary by shop and region.

• Typical installation time: 2–4 hours


• Average shop rate: $80–$150 per hour


• Estimated labor cost: $160–$600


• Dealer vs independent shop: Dealers often charge toward the higher end of the range

In practice, labor costs rise with regional wage differences and the level of dealer involvement, and can be higher in metropolitan or luxury markets.

Regional Variations and Year Differences

Prices and compatibility can shift based on where you live and which ES 350 model year you own. Some model years use the same radiator design, while others may have small updates that affect fitment and parts availability.

• Model year compatibility: Parts availability and fit can vary slightly by year; confirm with the mechanic which radiator matches your ES 350


• OEM vs aftermarket: OEM parts typically cost more but may guarantee exact fit and longer warranty; reputable aftermarket options can reduce cost


• Potential extra work: If hoses, the cooling fan assembly, or the transmission cooler lines require replacement, expect added parts and labor


• Cooling system service: A coolant flush or additional tests may be recommended, adding $100–$150 or more to the bill

Always get a written, itemized estimate that lists parts, labor, and any additional services before authorizing the replacement.

Ways to Budget and Save

Before listing practical steps, consider these cost-saving approaches that don’t sacrifice safety or reliability.

• Shop around for quotes from multiple reputable mechanics or Lexus specialists


• Ask for an itemized estimate that separates parts, labor, and fluids


• Consider reputable aftermarket radiators if you’re comfortable with non-OEM parts


• Bundle related cooling-system services (flush, hoses, thermostat) if recommended

By comparing options and planning ahead, you can reduce the total expenditure while maintaining the integrity of the cooling system.

Summary

For a Lexus ES 350, a radiator replacement generally runs from $500 to $1,400, depending on the choice between OEM vs aftermarket parts, regional labor rates, and whether additional cooling-system components are replaced. Expect parts to range from roughly $160 to $700 and labor to run about $160 to $600, with dealer shops often on the higher end. Always obtain an itemized estimate and ask about any recommended ancillary work to avoid surprises and ensure your cooling system remains reliable.

How much does it cost to replace a radiator in a Lexus ES350?

The average cost for a Lexus ES350 Radiator Replacement is between $905 and $1,153.

How much does it cost to replace a radiator in a Lexus?

The cost to replace a Lexus radiator typically ranges from $450 to over $900, but can be significantly higher ($1,100 to over $2,000) depending on the specific model and dealership or independent shop rates. Factors like the complexity of the repair, the cost of parts (aftermarket vs. OEM), and labor rates will determine the final price. 
Factors affecting the cost

• Vehicle model: The specific make and model of your Lexus will influence the price. Some models may have a more complex radiator placement, requiring more labor. 
• Parts quality: The cost will vary depending on whether you use an economy, premium, or original equipment manufacturer (OEM) radiator. 
• Labor time: Radiator replacement labor costs can vary significantly. Some vehicles require more time to access and replace the radiator, which increases the total price. 
• Labor rates: Dealership labor rates are often higher than those at independent shops. You may be able to find a lower price at an independent mechanic or even a Toyota dealership. 

Tips to manage costs

• Get multiple quotes: Contact both dealerships and independent mechanics to compare prices before making a decision. 
• Compare parts: Ask about the cost difference between using an OEM part versus an aftermarket one. 
• Trustworthy shop: Find a reputable independent mechanic you trust. They might be able to perform the repair at a lower cost. 

What year to stay away from Lexus ES 350?

You should avoid the 2007, 2008, 2011, 2013, 2014, and 2015 Lexus ES 350 models due to common issues like melting dashboards, engine/transmission problems, and other mechanical failures. While some later years also have specific reported problems, such as a hollow door design on some 2019 models that causes noise, the 2007-2015 period contains the most widely cited issues.
 
Years to avoid and common problems

• 2007–2009: Prone to oil leaks, engine issues like blown head gaskets, and AC problems from a defective evaporator core. The 2007 model is particularly known for its melting dashboard. Transmission problems like rough shifting and hesitations are also common. 
• 2011: Has a high number of complaints for various problems, including engine and transmission issues, as well as other mechanical failures. 
• 2013–2015: Reportedly have issues with exploding sunroofs, engine stalls when turning, and door lock malfunctions. Some of these years also saw problems with ventilated seats and powertrain fluid leaks. 
• 2019: Some owners reported that the doors feel hollow and let in a lot of road noise, a problem that was reportedly fixed around the 2020-2021 model years. 

Years that are generally considered more reliable

• 2012: Often mentioned as a good year to buy. 
• 2017–2019: Generally considered reliable with modern features. 
• 2020 and later: The years following the 2019 model year are generally considered more reliable, with some specific minor issues such as the hollow doors on 2019 models being addressed in later models. 

Is it cheaper to replace or repair a radiator?

The average cost to replace a car radiator can range from $750 to $1,850, depending on car make and model. Radiator repair is often far cheaper, costing $250 to $750, on average.