An official website of the United States government
Here's how you know
A .mil website belongs to an official U.S. Department of Defense organization in the United States.
A lock (lock ) or https:// means you’ve safely connected to the .mil website. Share sensitive information only on official, secure websites.

Home : Articles
Would you stake your life, right now, on the condition of your equipment?
NEWS | Dec. 1, 2023

Backhoe Loader: Get the Low Down on Alternator Parts

BLUF: Order the backhoe loader’s impeller fan with NSN 4140-01-562-3619 (PN 221425R1) and the pulley parts kit with NSN 2920-01-549-3426 (PN 1307188).

Backhoe loader at work
Photo by Staff Sgt. Armando Limon
Mechanics, you’ll come up short if you order the backhoe loader’s alternator shown as Item 1 (with down parts 2-7) in Fig 39 of TM 5-2420-231-24 (Jun 13). That’s because the alternator doesn’t come with a pulley or impeller fan. Ordering Item 1, NSN 2920-01-346-6293, only brings Items 1-3, 6 and 7.

You’ll have to order the pulley and impeller fan separately. Note that the impeller fan’s NSN and part number have changed, too. It now comes with NSN 4140-01-562-3619 (PN 221425R1).

And here’s another note: In order to get the pulley’s retaining nut (Item 2), you’ll have to order a parts kit that comes with NSN 2920-01-549-3426 (PN 1307188).

Backhoe loader pulley parts kit
Order the pulley parts kit using PN 1307188
Make a note until the TM is updated.
Want to get better search results faster? 
Click the link below to access our "how to" guide
After entering a keyword, you must hit or click the Search bar/box below for the function to work.
Simply hitting Return won't yield results.
Note about links to archive articles

If you come across a link to a pre-2014 PS Magazine issue or article that uses LOGSA in the web address (URL), use this link instead:
For issues/articles from 2014 and after, click on the Archive/Index tab in the top menu of this website.

BE ADVISED: With the migration to Army365, emails in older articles may still reflect an address. To update, change the domain to