vs-dt466, replaces # 1815374c1, 122-1301, (style vsb5), fits engines: d,dt466,b,e engines
vs-dt466-24, replaces # 1833432c1, (style vsb5), fits engines: dt466 4vpc, 24 valve (2005-on)
vs-dt530, replaces # 1822245c1, 122-1300, (style vsb5), fits engines: 530-8.7L with 3/8" valves
vs-dt535, replaces # 1823925c1, 122-1320, (style vsb5), fits engines: 530-8.7L with 5/16" valves
vs-f60, replaces# 3c3z6571aa, 122-1378, (style-vsb5), fits engine: ford 6.0L diesel powerstroke
vs-f73, replace # f4tz6571aa, 1816179c91, 122-1333, fits engine: 7.3L diesel powerstroke 1994-03
vs-f73+15, same as above but for (+15 stem engine valves)

vs-137, (umbrella), fits engines: 301 diesel
vs-269, (umbrella), fits engines: 166,188,236,248,264,281,282
vs-402, replaces # e7hz-6571a,b, (style vsw), fits engine: 6.6 & 7.8L diesel trucks
vs-403, replaces # f1hz6571b, (style vsb), 122-1237, fits engine: 6.6 & 7.8L diesel trucks
vs-690, replaces # e3tz6571a, (style vsw), 122-1330, fits engine: 6.9L diesel engine (1983-87), 7.3L diesel (1988-94)