Performance Radiator for Acura RSX (2002-2006) 2.0L Manual

High-Capacity Performance Radiator for 2002-2006 Acura RSX

Upgrades the restrictive factory cooling system with an all-aluminum, dual-row core to drastically reduce coolant temperatures during high-rpm driving.

The Stock RSX Cooling Limitations

The factory Acura RSX radiator utilizes a single-row aluminum core crimped to plastic end tanks. Over time and countless thermal cycles, this plastic-to-aluminum crimped seam becomes a primary failure point, leading to hairline cracks, pressure loss, and sudden coolant leaks. Furthermore, the OEM single-row core lacks the necessary fluid capacity and surface area to effectively dissipate heat during extended VTEC engagement or aggressive canyon driving, resulting in severe heat soak and elevated engine operating temperatures that can compromise the K20 engine's reliability and head gasket integrity.

The Engineering Solution

This performance radiator eliminates the inherent flaws of the stock unit by featuring a 100% TIG-welded, all-aluminum construction that completely deletes the failure-prone plastic end tanks. Engineered with a high-density, two-row core, this unit significantly increases total fluid capacity and maximizes the frontal surface area for optimal airflow dynamics. The enhanced fin pitch allows for vastly improved thermal transfer from the coolant to the ambient air, keeping the K-Series engine within its optimal temperature window even under heavy load. This direct-fit replacement utilizes factory mounting points and accommodates standard manual transmission cooling fan shrouds without modification.

Technical Specifications

Compatibility

• 2002 Acura RSX 2.0L Manual Transmission
• 2003 Acura RSX 2.0L Manual Transmission
• 2004 Acura RSX 2.0L Manual Transmission
• 2005 Acura RSX 2.0L Manual Transmission
• 2006 Acura RSX 2.0L Manual Transmission

The Acura Performance Standard

Maintaining proper thermal management is critical for the high-revving K-Series powerplant. This cooling upgrade ensures consistent power delivery, eliminates thermal throttling, and provides the rugged reliability necessary for both daily driving and spirited track days.