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John Deere Engine Identification

To identify the correct parts for your engine you will need all of the information from the engine data plate which is usually attached to the side of the engine. In some cases you will need the casting numbers on the engine block & connecting rods.


300 Series: Naturally Aspirated & Turbo Engines.

3 Cyl. Models: 3152, 3164, 3179, 3029
4 Cyl. Models: 4202, 4219, 4239, 4276, 4039, 4045
6 Cyl. Models: 6303, 6329, 6359, 6414, 6059, 6068


350 Series: Naturally Aspirated, Turbo & Aftercooled Engines.

3 Cyl. Models: 3029 (2.9L) Powertech
4 Cyl. Models: 4045 (4.5L) Powertech
6 Cyl. Models: 6068 (6.8L) Powertech


400 Series: Naturally Aspirated, Turbo & Aftercooled Engines.

4 Cyl. Models: 4270
6 Cyl. Models: 6404, 6466, 6076

450 Series: Naturally Aspirated, Turbo & Aftercooled Engines.

6 Cyl. Models: 6081, (8.1L) Powertech


500 Series: Naturally Aspirated, Turbo & Aftercooled Engines.

6 Cyl. Models: 6531, 6619


550 Series: Naturally Aspirated, Turbo & Aftercooled Engines.

6 Cyl. Models: 6105 (10.5L) Powertech


650 Series: Naturally Aspirated, Turbo & Aftercooled Engines.

6 Cyl. Models: 6125 (12.5L) Powertech


John Deere Engines are identified by the engine Serial Number Plate. The plate will list the Serial Number, Number of Cylinders, Engine Displacement in Liters or in Cubic Inches, the fuel option, Naturally Aspirated, Turbocharged or Turbo Aftercooled (Intercooled). The plate can also have the country in which the engine was manufactured.
There will also be a plate that will list the Engine Option Codes. Each code is a four digit number. The first two numbers of the four digit codes identify a specific group of parts or area of the engine. The other two numbers give a specific option of the parts and their application. If an engine is ordered without a particular component, the last two numbers will be "99".
There also may be Serial Number breaks listed in the parts listings. The P C Industries listing will refer to this as Code or Codes if this is required in the section of components. Examples of John Deere Serial Numbers and Engine Option Code Plates are listed in the Engine Identification pages.