KAMarch,
From my 4700 (AND 4500/4600) "Operator's manual":
Gross hp; 4500=39hp, 4600=43hp, 4700=48hp.
PTO hp; 4500=33hp, 4600(collar-shift and powr-reverser trans)=36hp,
4600(hydrostat)=34.5hp, 4700(collar-shift and powr-reverser trans)=41.5hp, 4700(hydrostat)=40hp
Hope this helps,
Larry /w3tcompact/icons/smile.gif