One Stop Solutions 98074 HVAC Heater Core

Acura RL Heater Core Replacement

Restore cabin heat and defrost performance with this HVAC heater core for the 1996-2004 Acura RL. One Stop Solutions Part Number 98074 is built as a direct replacement for the OE-style heater core layout used in these vehicles.

Key Features

• Fits 1996-2004 Acura RL, N/A
• Premium aluminum construction
• Cadmium-plated tubes inside and out to help resist premature failure
• Individually pressure tested before release
• Foam and related accessories included as supplied by the manufacturer
• Direct replacement for copper-designed heater core applications

Product Details

One Stop Solutions Part Number 98074 is an HVAC heater core engineered to match original equipment form and function for Acura RL models from 1996 through 2004. The aluminum core design is paired with cadmium-plated tubes to improve durability in the heater circuit, while the unit is pressure tested individually to verify integrity before installation. This heater core is a practical choice for Acura RL heater core replacement when the original unit is leaking, restricted, or no longer transferring heat effectively.

This part cross-references Dorman - HELP 99357 for the same application.

Common Repair Symptoms

• Weak or inconsistent cabin heat
• Coolant odor inside the vehicle
• Fogging or film on the windshield from heater core leakage
• Coolant loss with no visible external leak
• Restricted heater performance in Acura RL heating and defrost systems

Installation Notes

Verify the vehicle’s heater hose routing, core dimensions, and HVAC case configuration before installation. Flush the cooling system if contamination or debris is present, and inspect hoses, clamps, and seals while the HVAC case is open. Proper coolant refill and air bleeding are important after heater core replacement to restore normal heater operation.

Quality Assurance

OSC Premium heater cores are manufactured from aluminum and individually pressure tested to confirm leak resistance prior to shipment. Part Number 98074 is built as an OE-style replacement for Acura RL applications listed above.