BMW M3 Transmission Oil Cooler - Front + Rear - CSF - ZF8 Dual-Core w/ Rock Guard (2021-2027). This drop-in front-and-rear cooling package for the G8X M3/M4 with the ZF8 automatic helps keep transmission temps under control on the street and at the track.

CSF’s dual-core system pairs a high-efficiency front cooler with a larger rear unit, using AC-condenser-style 16 mm 9-channel microtubes to maximize oil flow and surface area. Expect around a 30 percent gain in cooling efficiency versus stock, along with significant gains in capacity and volume. The setup retains OEM quick-connects and top/bottom rubber seals, fits the factory location, and can be used with CSF’s heat exchanger (CSF #8215) or the OEM system. A rock guard protects the front core from debris. Ideal for road racing, drag racing, and vehicles with performance or transmission tuning.

Features

• Dual-core ZF8 package: front + rear coolers
• Approx. 30% cooling-efficiency improvement
• 94% more fluid capacity (1700 ml vs 875 ml)
• 194% increase in core and tank volume
• Rear: 16 rows, 191 mm height; 44 mm core vs 28 mm OEM
• Front: additional 16 rows
• 16 mm 9-channel microtube construction
• OEM quick-connects and OEM seals; true drop-in fit
• Works with CSF #8215 or OEM cooling
• 2-year limited warranty

Have questions about fitment or installation? Call us. We offer installation and customization at our Austin, Texas and Los Angeles, California area locations: 512-982-9393 (TX) or 562-981-6800 (CA).

If you are considering multiple items, contact us for possible shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov