USA:
Caterpillar:
Caterpillar Twenty Two
Caterpillar RD 6 / D 6
Cletrac:
Cletrac EG / ED 2 / ED
Cletrac HG
International:
International TD 6
Caterpillar:
Caterpillar Twenty Two
Caterpillar RD 6 / D 6
Cletrac:
Cletrac EG / ED 2 / ED
Cletrac HG
International:
International TD 6