John Deere J Series (Crawler Dozer) - ECU Chip Tuning
Unlock the full potential of your John Deere J Series (Crawler Dozer) with professional ECU chip tuning.
Whether you’re after more power, improved fuel efficiency, or a smoother driving experience, our custom tuning solutions are designed to optimise your John Deere’s performance. We work with a wide range of models to safely enhance throttle response, torque, and overall drivability — all tailored to your needs.
1050j - 12.0l 6cil (d946 - la6) tier 31050j wh - 12.0l 6cil (d946 - la6) tier 3450j - 4.5l 4cil (4045h) tier 3/4650j - 4.5l - 100hp - tier3650j - 4.5l 4cil (4045h) tier 3/4700j - 6.8l - 120hp - tier3850j - 9.0l - 185hp - tier3950j - 10.5l 6cil (d936 - la6) tier 3950j wh - 10.5l 6cil (d936 - la6) tier 3