CSF ZF8 Transmission Oil Cooler with Replaceable Rock Guard - BMW G80/G81/G82/G83/G87

Overview

Premium dual-core transmission oil cooler for modified and tuned BMW G8X models. Features 194% increase in core volume and 94% increase in fluid capacity (1700ml vs. OEM 875ml) with dual 22mm stacked cores (44mm total thickness). Includes CSF AC Condenser Technology with 1-Row Super-High Pressure 16mm 9-Channel Microtube design for optimized oil flow and maximum heat dissipation. Drop-in fit with OEM Quick Connect inlet/outlet connections and replaceable rock guard for debris protection. Compatible with ZF8 automatic and 6MT transmissions.

Installation summary

This installation requires a medium skill level and can be successfully completed by experienced DIY mechanics with proper garage equipment in about two hours. Preparation requires safely lifting the vehicle to access the front underside, draining the necessary transmission fluid to prevent spills during line disconnection, and having replacement fluid on hand to top off the system afterward. The most important thing to watch out for during installation is ensuring the OEM Quick Connect inlet and outlet lines are fully seated and secured to prevent leaks, as well as properly transferring and securing the replaceable rock guard to protect the significantly larger dual-core unit from road debris. Professional installation is not strictly required for this drop-in fitment, but extreme care must be taken when managing the increased fluid capacity and tight front-end clearances.

AI-generated overview — always verify against the official install instructions.