Fits: HD21 Crawler (Diesel) | HD21A Crawler (Diesel) | HD21P Crawler (SN# 12000-16000) (Diesel )

This Allis Chalmers model HD21P Diesel Crawler Service Manual is a digitally enhanced reproduction of the original manufacturer-issued Shop Manual. This manual covers SN# 12000-16000.

It contains 642 pages of the best technical information and instruction for your Crawler.

Written in the language of a mechanic, it was initially furnished to the dealer's service department to provide enough detail for major repairs and complete overhauls.

It covers how to correctly disassemble your HD21P, fix it, and put it back together.

This is an essential guide if you are in the middle of or thinking about extensive repairs or a full restoration.

Even if you already own an original Service Manual that's in good shape, you will find our value-added content, such as post-publishing updates, corrections, serial number info and additional machine detail extremely useful.

Free pdf preview of the Allis Chalmers Crawler Service Manual (AC-S-HD21) (mobile users click here)

Brand Synonyms

Allis Chalmers, AC, Agco Allis

These are sample pages meant to give you an idea of the contents of your Allis Chalmers Service Manual. Select the delivery method option to receive the complete manual in a download, printed version, or for the best value Buy Both.

Note:  The watermark will not appear on the manual that you purchase.