Ag Tractors

Introduction to Agricultural Tractors (Tractor Blue Book)

For over 25 years, the Tractor Blue Book has been the trusted source for the proper identification and valuation of Agricultural Tractors. Find numerous rich specs and pricing for most major manufacturers since 1939. Ability to save valuations in inventory for future revisions and valuation, organize in groups and print or save to .pdf. Updated on 4/1 and 10/1.

Starting a Search

To search for an Agricultural Tractor from the application home page, first click or tap on the Agricultural Tractors icon. It will turn green when selected.

Once the appropriate asset type is selected, the search for an Agricultural Tractor can begin.

Please note that though VIN Verification is shown, it is not applicable to Agricultural Tractors


Make/Model/Year Search

The Make/Model/Year search works with at least one of the four fields completed. For example, to find a 2017 John Deere 5065E, one could enter any combination of the manufacturer name, the model year, or the model name. Alternatively, if those are unknown, the category search allows for a combination search. It is possible to search for all 2017 Farm Tractors, or to see results for all John Deere tractors produced in 2017.



Specifications provide a helpful way to compare any asset with the correct configuration in the Price Digests database. Manufacturer publications are the main source of specification data. Though a manufacturer may typically offer many different options on any given model, the standard specifications on the most basic model is shown on each configuration.

Specifications are an easy way to find the configuration that matches an asset. After searching for an asset using the Make, Model, Year search, the following search screen appears:

In this example, one configuration matches this Make, Model, Year search. Confirm that the correct asset was returned and select that result. The following page will appear:

The specifications displayed here are called display specs. These are shown to help accurately select the configuration that matches the asset. Once the correct configuration is selected by clicking on the row of display specs, the following page will appear:

This is the configuration page for the specific asset that was searched. At the top of the page you will see the displayed specs that were selected on the previous screen. To see a full list of specifications for this configuration, select the “View full list” button.

The full list of Specifications for a configuration is called the rich specs and is shown when this button is selected. These are intended to give a more precise look at the standard specs applied to the most basic model of an asset. To go back to the display specs, simply select the “Hide full list” button.

For questions on the definition of these specification names, a complete list of specification definitions can be found here: Price Digests Dictionary



Price Digests allows users to build agricultural tractor valuations from a base asset and add on attachments, options, and adjustments as needed.

If the agricultural tractor has a custom option, it can be added in the Options section.

The custom option feature allows for the addition of options or equipment to be added to the agricultural tractor that may not have come standard. Upon selecting this button, please name the option that is being added along with its MSRP, Retail, High, and Low Values. These values must be determined by the user as each option depreciates in value at its own rate. Once the custom option is filled out, please select the “Add” button.

The custom option will appear as its own line item called “User Defined Optional Equipment”. Values that were determined by the user are added to the overall total value of the asset. Please note, that if a value is omitted in this process, the total value will effectively add zero to that column.

To make any edits or remove the item, hover over the item name in the option section and select “(edit)” when it appears.

The custom option window will come back up which includes the ability to save or delete the custom option.

The values page also allows for the addition of attachments to an equipment valuation. At the top of the page, there’s a green button labeled “Add Attachment”. Clicking that will bring up a tractor attachment selection wizard that will help filter the available options.

When adding an attachment to your agricultural tractor, make sure to select the Sub-Type “Attachments” and select your Manufacturer, Model, and Year from the drop downs.

All changes and updates to the base vehicle configuration are recorded at the bottom of the page. From this area, it’s possible to change the Revision Date of the valuation, as well as Download a copy of the valuation.

Revision Dates are discrete dates on which values were updated. If, for example, a valuation is needed as of April 1st, 2017, click on the drop-down date menu, select a date, and values will update accordingly.

Price Digests also provides a value trend line at the bottom of the screen which displays the last six value revisions of the asset. For agricultural tractors, this will show up to the last 6 months of valuations if applicable.

For more information on how to download a valuation and/or save a valuation to your inventory, check out our product guide on Saving & Exporting Your Valuation.

After all Attachments and Options have been added, Value Adjustments are available to further refine and enhance the valuation.

These adjustments allow for adding premiums or discounts to the value, modifying currency, adding taxes, and making condition adjustments. All changes will be reflected in the values table in real time.


Looking for Serial Numbers?

Serial Numbers are identification numbers set by manufacturers that align with certain production years to allow owners to confirm what year their tractor was produced. While Serial Numbers are not standardized in the industry and thus are not decodable, determining ranges can be a solution to this limitation. We provide the low range of the Serial Number to confirm the production year of the Tractor. This information is available as a Rich Spec:

If the high range of the Serial Number is needed to confirm the production year, the best way to find this is the search the next year’s Serial Number to determine the Serial Number logic used by that Manufacturer. For example, the 1969 Allis-Chalmers 170 shows the following:

It can be concluded that any Serial Number starting from 2721 through 5373 are from 1968 for this manufacturer and model. There are some cases where Serial Numbers contain both numbers and letters and thus require more complex logic to find the applicable range. For example:

For Agco DT205B shown above, 2009 have the leading letter “T” and 2010 have the leading letter “U”.

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