BMW Intercooler Radiator - do88 Performance WC-420

Elevate your BMW's cooling capabilities with the do88 Performance Intercooler Radiator (WC-420, DOE-WC420). This high-performance heat exchanger is engineered as a direct replacement for OEM part numbers 17118741830 and 17118625431, designed to significantly improve the efficiency of your vehicle's charge air cooling system.

Featuring an optimized core, the do88 WC-420 effectively lowers intake air temperatures, critical for maintaining consistent power output and enhancing engine reliability under demanding conditions. It provides a substantial increase in cooling capacity compared to the factory unit.

This upgrade is perfectly suited for a wide range of BMW 2, 3, and 4 Series models from 2016-2021, including 230i, M240i, 330e, 330i, 340i, 430i, and 440i variants, equipped with B46, B48, and B58 engines. For the ultimate cooling setup, consider pairing this radiator with a do88 high-performance intercooler (available separately, see #8131 or 8131B).