John Deere — Practice Safe Maintenance

A John Deere service procedure — check it applies to your exact model before use.

Procedure

1. Each engine has a 13-digit John Deere engine serial number (B) giving the following information: CD3029C123456 CD ............ Producing factory: CD= Saran-FRANCE PE= Torreon-MEXICO PY= L & T - John Deere (Pune-INDIA) 3029 ......... Engine model designation: 3= Number of cylinders 029= Total displacement (029 = 2.9 liters) C .............. Aspiration Code (early engines) or Emission Tier Level (later engines): D= Naturally Aspirated T= Turbocharger C,E or F = Tier 1/Stage I emission certified engine G,J or K = Tier 2/Stage II emission certified engine 123456 ..... 6-digit Sequential serial number
2. The second line of information (C) identifies the engine/machine or OEM relationship. See “ENGINE APPLICATION CHART” earlier in this manual. 3029DF150 3029D ...... See above F ............... User code: AT= Agritalia-built tractor F= OEM applications FG= Goldoni (Italy) KV= John Deere Knoxville LV= John Deere Augusta PY= L & T - John Deere (Pune-INDIA) 150 ........... Application number
3. The second line of information on Saran serial number plate (D) may also contain the coefficient of absorption value for smoke emissions or, for later engines, an internal factory identification number. CTM125 (22MAR06) 01-1 POWERTECH 2.9 L Diesel Engines 032306 PN=21 General Information 01 2 CD,CTM125,004 –19–01DEC97–1/1 OEM Engine Option Code Label CD30524 –UN–27MAY98 Option Code Label An option code label is secured to the top of the valve cover and identifies the factory installed options on each OEM engine to ensure correct parts acquisition. Always provide option code information and engine base code when ordering repair parts. A listing of option codes is given in Parts Catalogs and Operator’s Manual.

Source: manual:CTM125.pdf. Figures and steps are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.