The final design of W.A.G.R. brake van was this group of ten vans. They were similar in layout to the type 17 vans but had plywood sides and a different roof profile.

The careers of these vans are as follows:

No.	Built as class Z	To ZS	Written off
571	November 1970	-	November 1985
572	November 1970	-	November 1985
573	November 1970	December 1982	January 1985
574	November 1970	-	August 1985
575	November 1970	-	August 1985
576	December 1970	December 1981	January 1985
577	December 1970	-	August 1986
578	December 1970	-	November 1985
579	-	December 1970	August 1985
580	-	December 1970	November 1985

The vans converted to ZS standard had knuckle couplers fitted and in at least some cases the roofs lowered so that they could run under loading hoppers. ZS580 was written back as an SC in 1988.