This is because while they have the same model designations as the Series 300, they need very different parts. The last 6 digits are your serial number sequence.Īdditionally, it would be helpful to know if your engine is a PowerTech or not. L, M, N, or P: Tier 3/Stage III emission certified.G, J, or K: Tier 2/Stage II emission certified.C, E, or F: Tier 1/Stage I emission certified.Newer engines, on the other hand, use this letter to indicate their emission certification, as follows: S: Turbocharged, air to sea water aftercooled.H: Turbocharged, air to air aftercooled.A: Turbocharged, air to coolant aftercooled.For an older engine, this letter will actually stand for the aspiration code, and means the following: Depending on the age of your engine, this code could indicate different things. The next four digits are for the engine model, followed by a letter for the emission code. The first two letters indicate which factory the engine was produced in: John Deere serial numbers are typically 13 characters long. What Should I Know About My John Deere Diesel Engine Serial Number? Need help making sense of your John Deere ESN? We have a free quick guide for you!Īre you looking to overhaul your engine? We have rebuild kit options! Because each engine manufacturer has a unique way of numbering their engines, make sure you know where to find the information for yours! Below we discuss how to make sense of your engine serial number and where you might find it. If you run a Deere and are looking for replacement parts, you'll need to have a few numbers on hand to help ensure you get the right ones for your engine. From there, they expanded to other agricultural implements before becoming the machinery giant we know today. Instead, their first product was a self-scouring steel plow made in the 19th century, and it put John Deere on the map as a company. John Deere didn't start out producing diesel engines.

John deere engine serial number decoder