MISHIMOTO BMW E46 3-Series Performance Radiator, 1999-2006

The Mishimoto Performance Aluminum Radiator for BMW E46 non‑M models is engineered to reduce coolant temperatures by up to 19°F (10.5°C) and provide superior protection against overheating during aggressive driving or track use. Designed as a direct upgrade for all E46 3‑Series vehicles, this radiator eliminates the weaknesses of the factory plastic‑tank design and delivers long‑term durability.

The Mishimoto E46 non‑M radiator features a large two‑row core, 100‑percent brazed aluminum construction, and polished end tanks, resulting in significantly improved cooling efficiency. It offers a 20‑percent increase in coolant capacity over the OEM radiator, along with an 18‑percent increase in coolant surface area and a 41‑percent increase in air surface area to maximize heat dissipation.

This advanced design incorporates CNC‑machined inlets and outlets that are fully compatible with the stock plastic quick‑disconnect fittings and Mishimoto E46 non‑M radiator hoses. The radiator is available in separate configurations for manual and automatic transmissions, with the automatic version including an auxiliary inlet port for the factory transmission cooler connection.

Every Mishimoto aluminum radiator is a true direct‑fit component, ensuring straightforward installation. The radiator is backed by the Mishimoto Lifetime Warranty, guaranteeing exceptional product quality and craftsmanship.