John Deere engine Serial Numbers Explained

John Deere, like other engine manufacturers, uses its unique terminology and arrangements, to mark its products, and to assign part numbers. Comprehension this marking categorization and principles is crucial to part amount identification, which is then used to pick rebuild kits, components, and maintenance parts.

A typical engine serial amount looks like To4045T123456. To better understand this number, it will be split into some parts. The first segment is the two first letters "To." These two first letters indicates two things:- one, which country was it artificial in, and secondly, if it is Powertech or non-Powertech.

All John Deere engines artificial in Dubuque, Iowa, Usa, are preceded by the letters "To," all engines preceded by "Cd" are artificial in Saran, a facility settled in the Loiret area of France, and all engines artificial in Torreon, Mexico, are preceded by the letters "Pe."

The next set of numbers in the John Deere engine serial amount are four (4) or (5) numbers and letters. In our example, this refers to "4045T." This can be supplementary sub-divided into the "4045" and the "T". The 4045 indicated that this is 4045 model. The first "4" indicates that its build with four (4) cylinders. The "T' that's comes after the engine model amount tells that the engine has a turbocharger attached onto it, and thus this is a turbocharged engine. This factor is indispensable as turbocharged engines are designed differently from non-turbocharged engines. Most importantly, parts may not be interchanged between these two kinds of engines.

The last set of six (6) numbers is the sequential amount of the engines as it comes off the assembly line. If this amount is 123456, then the next serial amount of the next engine on the same assembly line will be 123457. This will continue until John Deere decides its time to upgrade or to build an additional one model.

There are many variations of the above serial number. The model 4045T can be marked 4045D. Here the "D" symbolizes that the engine is a diesel engine (some early John Deere's were artificial to control on gas), and that's it's plainly aspirated, i.e., it's not turbocharged. Thus, this serial amount could have been To4045D123456 and this would have been totally dissimilar from the To4045T123456.

The 4045 in serial numbers can also be 3152, 3164, 3179, 3029, 4202, 4219, 4239, 4039, 4276, 6303, 6329, 6059, 6414, 6068, 6414, 4270, 6404, 6466, or 6076. They can be followed by a "D", a "T" or a "H."

The issue of how to recognize which engines are PowerTech and which are not non-PowerTech often arises. This can be solved by supplementary dissecting the John Deere serial number.

For the engines made in Dubuque, Iowa, Usa,(To Engines) all engines with a sequence amount more than 700,000 are all Powertech engines.

For the engines made in Sarran, France,(Cd engines) all engines with sequence serial amount more than 500,000 are all Powertech engines.

On the contrary, however,, all John Deere engines made in Torreon, Mexico, (Pe engines) are PowerTech engines. This sequence serial amount began with one thousand (1000). Thus, all Pe PowerTech engines will have a sequence serial amount of one thousand (1000) and up.