Hi Clarie and Bill
First off welcome to Sunline Club.
2nd here try this link.
American Enterprizes Convertors
They sell a direct replacment for the CS4500.
They also have a tech line you can call., I have called them and talked to them. The new ones they offer are much improved over the year 2000 models.
Hope this helps
Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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