MISHIMOTO BMW 335I 135I (Automatic) Performance Aluminum Radiator, 2006-2013

Mishimoto’s Performance Aluminum Radiator for the 2006–2013 BMW 335i and 135i is engineered to keep your turbocharged straight‑six running cool under demanding conditions. The N54 and N55 engines deliver exceptional power, but elevated temperatures can quickly become a limiting factor during spirited driving or track use. This radiator provides a substantial cooling upgrade to help maintain consistent performance.

The Mishimoto 335i/135i radiator features all‑aluminum construction with TIG‑welded end tanks and a 100‑percent brazed aluminum core. CNC‑machined quick‑disconnect inlet and outlet fittings ensure reliable, leak‑free operation and eliminate the failure‑prone plastic connections found on the factory radiator. The brushed aluminum finish offers a clean, performance‑oriented appearance suitable for any engine bay.

Precision‑engineered for flawless drop‑in fitment, this radiator delivers a 35‑percent increase in coolant capacity for improved heat rejection. Each unit also includes a Mishimoto Magnetic Oil Drain Plug with a Dowty seal to help capture circulating metal particles and provide additional engine protection.

As with all Mishimoto BMW components, the 335i/135i Performance Aluminum Radiator is backed by the Mishimoto Lifetime Warranty.