DENSO 221-9548 OE Replacement Aluminum Downflow Radiator

The DENSO 221-9548 is a direct-fit, OE-quality replacement radiator built to restore proper engine cooling performance. Engineered with the same precision and materials used in original equipment manufacturing, this radiator is designed for a seamless, no-modification installation.

Key Features:

• OE-Grade Construction: Aluminum core with plastic tanks — materials and tolerances matched to original manufacturer specifications
• Downflow Design: Coolant flows from the upper driver-side inlet (1.528 in.) to the lower passenger-side outlet (1.528 in.) for efficient heat dissipation
• Core Dimensions: 27.76 in. wide × 25.59 in. tall × 1.02 in. thick — precision-sized for factory fitment
• First Time Fit: Drops in without brackets, adapters, or modifications
• No Transmission Cooler: Designed for vehicles using a separate or no transmission oil cooler
• Rigorous Testing: Every DENSO radiator passes strict durability and function validation before leaving the factory
• OEM Cross-Reference: Toyota OEM part 164000S030; also cross-references Spectra Premium CU2992, CSF 3776, TYC 2992, OSC 2992

DENSO is one of the world's largest OE automotive suppliers, with decades of experience engineering thermal management solutions for major automakers. The 221-9548 reflects that heritage — delivering dependable, long-lasting cooling performance engineered to meet or exceed OEM standards.