2014-2022 BMW M3/M4/M2 F8X S55 Aux Radiator

Out of stock
Most items are build to order
Please allow up to 13 weeks to manufacture if out of stock. You can call us to check stock status.
$1,139.00

Part Number

  • SKU CR-UC-KPR018B
  • Made in the USA – Hand-built in PWR’s state-of-the-art Indianapolis facility using premium aluminum, with full control over quality at every step.
  • Proven Cooling Performance – Advanced PWR tube and fin technology engineered for consistent, repeatable heat rejection.
  • Lightweight & Efficient – Designed to maximize cooling performance without unnecessary material or excess weight.
  • Motorsport-Inspired Engineering – Developed from decades of professional racing experience and real-world validation.
  • World-Class Precision TIG-Welded – Handcrafted for durability, reliability, and precise fitment down to the smallest detail.
  • Proudly American Made – Built right here in the USA, not imported or rebranded, ensuring true manufacturing oversight and accountability.
  • Built, Not Just Assembled – Engineered and manufactured in-house from core to final weld, not pieced together from off-the-shelf components.
Description Fitment Shipping Policy

2014-2022 BMW M3 / M4 / M2 F8X S55 Auxiliary Radiator

Features:

  • Handmade and professionally TIG-welded in the USA
  • High-efficiency aluminum performance core engineered for maximum heat rejection
  • Engineered louvered fin technology optimized for high-performance street and track use
  • Direct OEM-style plug-and-play installation using factory mounting locations and connections

PWR’s auxiliary radiator for the 2014–2022 BMW M3, M4, and M2 equipped with the S55 engine is engineered to improve overall cooling system performance for demanding street and track applications. Manufactured entirely in-house at our USA facility, this auxiliary radiator features a high-grade aluminum performance core designed to deliver superior heat transfer and durability compared to conventional OEM-style cooling solutions.

The advanced cooling tube design and optimized louvered fin geometry maximize heat rejection while maintaining efficient airflow through the cooling stack. By increasing cooling capacity within the factory cooling system, this auxiliary radiator helps stabilize coolant temperatures, reduce heat soak, and support consistent engine performance during aggressive driving, extended track sessions, and higher horsepower applications.

Designed for seamless OE-style integration, this auxiliary radiator installs directly into the factory mounting location using original equipment connections and mounting hardware. Whether your BMW is stock or modified, this PWR auxiliary radiator delivers the durability, reliability, and thermal performance required to keep your cooling system operating at its best.

Upgrade with confidence and experience the unfair advantage in cooling technology with PWR.