CSF 7059 Triple-Pass Radiator for 2008-2013 BMW E9X M3 4.0L

Vehicle Fitment

• 2008-2013 BMW M3 (E9X, S65 4.0L V8) - Triple-Pass Radiator

Features

• High-performance all-aluminum radiator with triple-pass flow design
• 2-row core featuring CSF's exclusive B-Tube technology for superior heat transfer
• Triple-pass flow structure for maximum coolant heat rejection
• Ultra-efficient multi-louvered fin pattern to enhance airflow through the core
• CNC-machined OEM-style quick-connect inlet and outlet fittings
• CNC-machined brackets and hardware for durable, precise drop-in fit
• All-aluminum race-style drain plug included for service convenience
• Designed for street and track performance with OE-compatible installation

Specifications

• Part Number: CSF 7059
• Core Material: Aluminum
• Tank Material: Aluminum
• Core Rows: 2
• Core Thickness: Approx. 1.63" (42 mm)
• Core Width: Approx. 23.63"
• Core Height: Approx. 18.00"
• Flow Type: Triple-pass coolant flow
• Inlet Diameter: ~1.5" (OE quick-connect)
• Outlet Diameter: ~1.5" (OE quick-connect)
• Radiator Cap: Not included
• Transmission/Engine Coolers: Not integrated
• Sold Individually (1x radiator)

Included Components

• 1x CSF 7059 High-Performance All-Aluminum Triple-Pass Radiator
• 1x CNC-machined aluminum race-style drain plug

Product Description

The CSF 7059 radiator is a high-performance all-aluminum triple-pass cooling upgrade engineered specifically for the **2008-2013 BMW M3 (E9X)** equipped with the S65 **4.0 L V8** engine. Featuring a dual-row core built with CSF's proprietary **B-Tube technology** and a triple-pass coolant flow design, this radiator increases the contact surface and heat rejection capability compared to conventional units. The multi-louvered fin pattern and precision CNC-machined fittings support improved airflow and thermal dissipation, helping to keep coolant temperatures lower - even under demanding street or track driving conditions.

Designed as a drop-in replacement, the CSF 7059 installs using original mounting points, hoses, and fan shroud hardware with no modifications required. Its all-aluminum construction, CNC-machined brackets, and race-style drain plug deliver durability and long-term reliability. Whether you're replacing an aging OEM radiator or upgrading cooling performance for high-load driving, this CSF radiator offers enhanced heat management and consistent temperature control for the high-revving E9X M3 platform.