Mishimoto Performance Aluminum Radiator - BMW E46 M3

Product Details

The Mishimoto Performance Aluminum Radiator is engineered as the ultimate cooling upgrade for the 2001–2006 BMW E46 M3. Designed to replace the failure-prone factory radiator (which utilizes plastic end tanks), this unit is constructed from 100% brazed aluminum with TIG-welded end tanks for maximum durability. It is specifically optimized for the S54 engine, featuring an extremely dense core with an increased number of coolant tubes to provide superior heat exchange during aggressive track use or high-temperature street driving.

Key Features:

• Direct Fit Design: Engineered for a complete bolt-in fit with no modifications required, maintaining compatibility with the stock clutch fan and shrouding.

• Increased Surface Area: Offers a 32% increase in coolant surface area and a 15% increase in air surface area compared to the stock unit.

• Enhanced Capacity: Provides a 25% increase in coolant capacity, ensuring a larger thermal reserve to prevent overheating under load.

• CNC-Machined Fittings: Features precision quick-disconnect fittings that mate perfectly with OEM radiator hoses.

• Sensor Integration: Includes a built-in 1/8" NPT port for the seamless installation of aftermarket temperature sensors.

• Forced Induction Compatible: Designed to handle the increased cooling demands of most aftermarket supercharger kits.

Technical Specifications:

• Core Material: 100% Brazed Aluminum

• End Tank Construction: TIG-welded Aluminum (0.08" wall thickness)

• Overall Dimensions: 27.4" (H) x 17.0" (L) x 4.4" (W)

• Core Dimensions: 22.83" x 16.14"

• Core Thickness: 1.9 inches (approx. 48mm)

• Rows: 2 (Dual Core)

• Coolant Capacity: 2.51 Gallons

• Inlet/Outlet Style: Stock-Style Quick-Disconnect

• Purchase Includes: Aluminum Radiator, Fan Tool (for clutch fan removal), Black 1/8" NPT Plug, and M6 Flange Hex Bolts.

• Warranty: Mishimoto Lifetime Warranty (includes accident protection).

Prop 65 Warning

Product Q&A

Lifetime Replacement