Hi Kevin,
The VIN you provided is missing a digit so I am unable to verify this part for you. However, this is a very common engine cooler hose assembly for the 5.7L so I am pretty sure it will be the correct one for you.
W8000528 Hose Asm. Is that the right part for model? 2003 Tiffin Alegro with Workhorse chassis.
( PAUL, 09/30/2015 )Paul,
No that is not the correct engine oil cooler lines for your VIN. You would need part# 15002888