There very well may be but you'd have to get hold of a D339 Industrial Engine 34Bxxxx Parts Book to find out. I don't have that manual.
D7E 48A D339 is very similar, except the dash of course, you can wire up your own harness, the main thing is the glow plug lead, 7S3726, it attaches to the rocker box covers on two of the studs. Pricey though, $254.96 from Cat.