Part #: RA2543C

Universal Air RA2543C Radiator

Downflow Radiator
⚙️ 5 vehicles fit this part
🔍
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$165.50Free Shipping
🚚Free ShippingNo Cost to Continental U.S.
🔄Free Returns*Wrong fit? No cost
🛡️60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
🔥
✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
📦Downflow Radiator
🚗Fitment: Lexus, RX300
🔄Easy Returns — Return within 60 days for a full refund
🚚Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Universal Air Downflow Radiator RA2543C

The Universal Air Downflow Radiator RA2543C is designed specifically for the Lexus RX300, providing reliable cooling performance. This radiator is engineered to meet the cooling demands of your vehicle, ensuring efficient heat dissipation under various driving conditions.

  • Compatible with Lexus RX300 models
  • Part number RA2543C for precise identification
  • Downflow radiator design for effective coolant flow
  • Constructed to maintain optimal engine temperature
  • Direct replacement for original equipment radiators

Details on the Downflow Radiator Product Line

The Downflow Radiator line by Universal Air focuses on radiators that utilize a vertical coolant flow design. This approach allows coolant to enter from the top and flow downward through the core, promoting consistent heat exchange. The RA2543C model is part of this line, offering a balance of durability and performance tailored for the Lexus RX300 cooling system requirements.

Product Description and Features

The RA2543C radiator is engineered to fit the Lexus RX300, ensuring compatibility and ease of installation. Its downflow design supports efficient coolant circulation, which helps maintain engine temperature within manufacturer specifications. This radiator is constructed to withstand the thermal stresses encountered during normal and demanding driving conditions, contributing to the longevity of the vehicle’s cooling system.

Common Applications and Problem Resolution

  • Replaces leaking or damaged radiators in Lexus RX300
  • Addresses engine overheating issues caused by radiator failure
  • Resolves coolant loss due to cracks or corrosion
  • Improves cooling efficiency in vehicles with aging radiators
  • Supports restoration of proper engine temperature regulation

Installation Notes and Tips

When installing the Universal Air RA2543C radiator, ensure the vehicle is cool and the cooling system is depressurized before removal of the old radiator. Verify that all hose connections and mounting points align with the Lexus RX300 specifications. Properly bleed the cooling system after installation to prevent air pockets and ensure optimal performance.

Quality Assurance and Warranty

Universal Air manufactures the RA2543C radiator to meet industry standards for durability and performance. While specific warranty details are not provided, Universal Air products typically undergo quality control processes to ensure reliability. It is recommended to consult the product documentation or supplier for warranty information related to this radiator.

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2003LexusRX300N/Awith 1" CORE; Downflow Radiator
2002LexusRX300N/Awith 1" CORE; Downflow Radiator
2001LexusRX300N/Awith 1" CORE; Downflow Radiator
2000LexusRX300N/Awith 1" CORE; Downflow Radiator
1999LexusRX300N/Awith 1" CORE; Downflow Radiator

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.