This is a A-25A255 RELAY ASSEMBLY PN: 25A255Main Description As Following : A-25A255 RELAY ASSEMBLY P.N: 25A255 For all 12 volt diesel models 1958-64 except Lucas equipped. Replaces: A-311006 FORD , Crossed From: 1100-0207 , , 1400-0940 , Found in Section & Models : Ignition & Electrical Parts > Ignition & Related Parts, Ford / New Holland INDUSTRIAL/CONSTRUCTION: 1801, Ford / New Holland TRACTOR: 2110TR, Ford / New Holland TRACTOR: 4040, Ford / New Holland TRACTOR: 4140 Associated Items : New Also A-FO-O-1801DSL, A-FO-O-601-801, A-FO-P-SHERF9BH, A-FO-P-4CYLALL, A-FO-S-SELECTO, A-FO-S-600700, A-SMFO20, A-FO-O-40004140, A-FO-P-4CYLALL, A-FO-S-SELECTO, A-FO-O-2-5000, A-FO-O-40004140, A-FO-P-234000, A-FO-P-4CYLALL, A-FO-S-2000 And : Dim A (1): 12 Volt, 4 Terminal