How many batteries should there be?

[dodgemahal]

I'm looking to buy a 1989 Dodge D350 diesel truck and notice it had one battery. I thought diesel engines had two batteries. There is only room in the engine bay for one, if that's a clue.

 

[99Ram]

Not sure but I'm thinking the older diesel trucks only had one battery

 

[7mopar]

If anyone knows where to get a box for the other side, I have never seen one.

 

[65 sporty]

The 89-92 trucks with the Cummins only had one battery, it's a big one though. Group 31 I believe

 

[Cranky1]

The 89-92 trucks with the Cummins only had one battery, it's a big one though. Group 31 I believe

Yes, the first gen diesels only had one battery. Didn't they start using the Cummins engine in 87 and not sure when they started using 2 batteries either.