CSF 8221 Performance Transmission Oil Cooler w/Rock Guard for 21-25 BMW M2/M3/M4

Vehicle Fitment

• 2021-2025 BMW M3 (G80/G81, ZF8 Auto Transmission)
• 2021-2025 BMW M4 (G82/G83, ZF8 Auto Transmission)
• 2023-2025 BMW M2 (G87, ZF8 Auto Transmission)

Features

• High-performance automatic transmission oil cooler designed for G8X & G87 BMW models
• Dual-core stacked design significantly increases cooling capacity over OEM
• Approximately 194 % bigger core and tank volume vs. factory cooler
• ~94 % increased fluid capacity for better heat dissipation
• Utilizes advanced micro-tube technology for optimal oil flow and heat rejection
• OEM-style quick-connect inlet and outlet fittings for direct-fit installation
• Replaceable rock guard protects core from front-end debris
• Drop-in fit - no cutting or modifications required
• Ideal for tuned, high-performance and track-driven vehicles
• 2-year limited manufacturer warranty

Specifications

• Part Number: 8221
• Type: Automatic Transmission Oil Cooler
• Core Material: Aluminum with micro-tube condenser tech
• Core Design: Dual stacked cores
• Core Thickness: ~44 mm
• Fluid Volume Capacity: ~94 % more than OEM
• Inlet/Outlet: OEM quick-connect type
• Finish: Black coated cooler with rock guard
• Installation: Drop-in direct fit
• Warranty: 2-year limited

Included Components

• 1x CSF 8221 automatic transmission oil cooler
• 1x Replaceable rock guard
• Pre-installed inlet/outlet quick-connect fittings

Product Description

The **CSF 8221 Performance Transmission Oil Cooler** is a high-capacity, direct-fit upgrade designed for **BMW M3 (G80/G81)**, **M4 (G82/G83)**, and **M2 (G87)** models equipped with the **ZF8 automatic transmission.** This cooler significantly improves transmission oil cooling capacity over the factory unit with a dual-core stacked design that increases core and tank volume by approximately 194 % and fluid capacity by ~94 %, helping maintain optimal transmission temperatures during spirited driving or track use.

Built with advanced micro-tube technology and OEM-style quick-connect fittings, the 8221 installs as a drop-in replacement with no cutting or modifications required. A replaceable rock guard adds protection against debris impact at the front of the vehicle. Ideal for high-performance, tuned builds, and racing applications, this transmission oil cooler supports improved fluid temperature management and shifting performance under heavy load. Backed by a 2-year limited warranty, the CSF 8221 is an excellent upgrade for BMW enthusiasts pushing their vehicles to the limit.