DATA BOX

In order to make the exact choice, please be sure to answer the following questions about your application:

1. Does your alternator have the same dimensions as shown?
2. What is the voltage of your vehicle system? It has to be either 12 or 24.
3. What is the amperage output of the alternator being replaced?

Important note...2700/2800JB series alternators are still found on many older Mack trucks and school buses. We also offer brand new 4800 JB Series high amp output versions.Please click here to go to the 4800JBHO (high output) selection page.

IMPORTANT NOTE...Delco type brushless alternators should be considered as upgrades to the standard 22SI type, 110-555 type or Leece-Neville type alternators operating in high dust/dirt construction environments. Because brushless alternators contain fewer moving parts their service life cycle is substantially longer than standard brushed alternators. Click here to review our Delco style brushless alternators. Be sure to carefully review all measurements when upgrading from brushed to brushless type alternators.

Match the details from your alternator with those noted below (such as system voltage, amp output and etc.), determine the correct alternator from our selection and click on the part number for exact unit picture and data.