- Direct fit for the 2001–2006 BMW E46 M3
- Fully brazed aluminum core with TIG-welded end tanks
- Fits perfectly with stock clutch fan or Mishimoto electric fan shroud
- Precision designed
- CNC-machined quick-disconnect fittings mate perfectly with stock hoses
- Track-tested design
- 32% increase in coolant surface area
- 15% increase in air surface area
- 25% increase in coolant capacity
- Works with most aftermarket supercharger kits
- Includes fan tool for clutch fan removal
- 1/8" NPT port for easy installation of sensors
- Mishimoto Lifetime Warranty
The S54 is an incredible feat of engineering. Smooth power delivery, individual throttle bodies, and an 8,000 rpm redline makes for an unforgettable driving experience. As with any BMW, maintenance is key to extending the life of your vehicle and ensuring that you’re getting a driving experience rivaled by very few other vehicles on the road. As many of these vehicles see frequent track time, the team at Mishimoto felt a need to develop a performance aluminum radiator that would not only provide improved durability, but also deliver the efficiency needed for track driving. Our team of engineers developed an extremely dense core on this E46 M3 radiator, that provides a greater number of coolant tubes and a very dense fin composition. This allows for more heat-transfer contact points which results in greater heat exchange and improved efficiency. Additionally, this dense core provides a 32% increase in coolant surface area, a 15% increase in air surface area, and a 25% increase in coolant capacity. All these factors contribute to lower temperatures and greater heat rejection, ideal for those in warm climates and track use.This BMW radiator is designed as a complete bolt-in fit, requiring no modification for fitment with the stock fan and shrouding. Our BMW radiator end tanks are constructed from high-quality aluminum TIG-welded to a 100% brazed aluminum core. Not only does this aid in heat transfer, but it also provides the reliability needed for years of service. Pair this E46 M3 radiator with the Mishimoto BMW E46 M3 Silicone Radiator Hose Kit for added durability over your stock rubber hoses. This BMW radiator is compatible with most aftermarket supercharger kits, providing the cooling power needed for power levels above stock. As with all our BMW parts, the Mishimoto E46 M3 Performance Aluminum Radiator includes the Mishimoto Lifetime Warranty, ensuring superior product quality and craftsmanship. For more information about the development process, check out our build thread on our engineering blog!
(1) Black 1/8" NPT Plug
(5) M6 x 1.0 x 16mm Flange Hex Bolts
Mishimoto Lifetime Warranty
- TECH SPECS
Engine Codes S54 Chassis Codes E46 Fits 2001–2006 BMW E46 M3
Material Aluminum Overall Height 27.4" Overall Length 17" Tank Wall Thickness 0.08" Outlet Quick Disconnect Rows 2 Inlet Quick Disconnect Coolant Capacity 2.51 Dual Pass False Overall Width 4.4" Core Length 22.83" Core Height 16.14" Core Thickness 1.9" Overall Length (in) 17.00 Overall Height (in) 27.40 Overall Width (in) 4.40 Rows 2
Mishimoto Automotive (“Mishimoto”) warrants its products under this lifetime limited warranty policy (“Warranty Policy”). This Warranty Policy applies solely to: (i) Mishimoto Products purchased directly from Mishimoto or Mishimoto authorized dealers (each a “Mishimoto Product” and collectively, the “Mishimoto Products”) and (ii) the original purchaser of such Mishimoto Product (“Purchaser”). This Warranty Policy is non-transferable and all claims under this Warranty Policy must be accompanied by the original sales receipt. The terms and conditions of this Warranty Policy are subject to change by Mishimoto at any time without notice.
For our complete warranty policy, please click here.
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