Stanley Part Number Tractor Application & Description Inlet Length (A) Inlet I.D. (B) Shell Length (C) Outlet Length (D) Outlet O.D. (E) O/A Length (F) Wgt in LBS
2,1/4 1,5/8 13 2,1/4 1,5/8 17,1/2 4
FO-4

CL-158 (Inlet & Outlet)

NAA (53-54), 600 & 700 (55-57), 501, 601, & 701 (58-62), 2000 series (63-64) with 134 c.i.d. Gas,. 800 & 900 (55-57) with 172 cid Gas.  860 Jubilee Note: Use FO-4A for manifold elbow.  For Jubilee use with the FOE-1 and FOE-3.