John Deere DEF Tank Header Assembly Part No: AT486848

The John Deere DEF Tank Header Assembly AT486848 plays a key role in keeping your DEF system working right. This header assembly helps manage DEF flow, so your machine runs cleaner and stays in line with emissions rules. If your engine’s performance has dropped or you’ve had DEF issues, this part could be the fix. It’s made tough to handle long days and rough conditions, whether you're in the field or on a construction site. The DEF tank header assembly fits select John Deere models and installs easily, helping you get back to work fast. It keeps the DEF system balanced so your engine runs smoother and more efficiently, with less downtime. Don’t wait until it’s too late—these parts move quickly, and the price is worth the peace of mind. Grab your John Deere header assembly today and keep your machine running clean.