One Stop Solutions 98041 HVAC Heater Core

Heater Core for Lexus RX300

Restore cabin heat and coolant-to-air transfer with this HVAC heater core for the 1999-2003 Lexus RX300. One Stop Solutions part 98041 is built as a direct OE-style replacement for the original heater core layout and is made from aluminum for the RX300 application.

Key Features

• Fits 1999-2003 Lexus RX300, N/A
• One Stop Solutions part number 98041
• Aluminum construction for the heater core assembly
• Cadmium-plated tubes inside and out to help resist premature failure
• Individually pressure tested before release
• Foam and related accessories included with the unit
• Direct replacement for a copper-designed heater core

Detailed Description

This HVAC heater core is engineered to match the original form and function used in the Lexus RX300 heating system. It is a practical replacement for vehicles experiencing reduced heat output or coolant leakage at the core, and it cross-references Monroe Shocks & Struts (e.g., 93041, 399285) for the same application. The 98041 heater core uses aluminum construction and plated tubes to support durability in the HVAC case while maintaining OE-style fitment for 1999-2003 Lexus RX300 models.

Common Issues It Can Address

• Weak or inconsistent cabin heat
• Coolant odor inside the vehicle
• Fogging from heater core leakage
• Loss of heater performance after core corrosion
• Need for an OE-style replacement during HVAC repair

Installation Notes and Tips

Verify the vehicle year and HVAC configuration before installation. Replace the heater core only after the cooling system is fully drained and the HVAC case is opened according to service procedures. Inspect hoses, seals, and surrounding components for wear before reassembly to help prevent repeat leaks.

Quality Assurance

Each One Stop Solutions heater core is pressure tested individually before shipment. The aluminum design and plated tubes are used to support consistent performance in the HVAC system.