This is a A-21A200D Module, Electronic Ignition PN: 21A200DMain Description As Following : A-21A200D Module, Electronic Ignition P.N: 21A200D 4 cyl. models w/ 12 volt neg. ground or 6 volt systems converted to 12 volt negative ground systems only.Dim A (1): EasyNote: Replaces points & condenser w/ an electronic module. Increases spark plug life and horsepower. Use w/ all 12V ground & 6V Found in Section & Models : Ignition & Electrical Parts > Ignition & Related Parts, Allis-Chalmers TRACTOR: SEVERAL (W/ Delco Distr. 1112486 or 1112460), Allis-Chalmers TRACTOR: 170 (W/ Delco Distributor #1112688), Allis-Chalmers TRACTOR: 175 (W/ Delco Distributor #1112688), Clark INDUSTRIAL/CONSTRUCTION: C500 35 (W/ Delco Distr. 1112685 or 1111700), Clark INDUSTRIAL/CONSTRUCTION: C500 40 (W/ Delco Distr. 1112685 or 1111700), Clark INDUSTRIAL/CONSTRUCTION: C500 45 (W/ Delco Distr. 1112685 or 1111700), Clark INDUSTRIAL/CONSTRUCTION: C500 50 (W/ Delco Distr. 1112685 or 1111700), Clark INDUSTRIAL/CONSTRUCTION: C500 55 (W/ Delco Distr. 1112685 or 1111700), Hyster INDUSTRIAL/CONSTRUCTION: S30B (W/ Delco Distr. 1112627), Hyster INDUSTRIAL/CONSTRUCTION: S40B (W/ Delco Distr. 1112627), Hyster INDUSTRIAL/CONSTRUCTION: S50B (W/ Delco Distr. 1112627), Massey Ferguson TRACTOR: SEVERAL (W/ Delco Distr. 1112448 or 1112478), Massey Ferguson TRACTOR: 135 (W/ Delco Distr. 1112467), White/ Oliver/ Mpl Moline TRACTOR: M670 (W/ Delco Distributor #1112660), White/ Oliver/ Mpl Moline TRACTOR: SEVERAL (W/ Delco Distr. 1112661, 1112463 or, White/ Oliver/ Mpl Moline TRACTOR: U302 (W/ Delco Distributor #1112660) Associated Items : New Also A-AC-S-LPEQUIP, A-AC-O-170, A-AC-P-170175, A-AC-S-170175, A-FRM-ACCACO, A-SMAC201, A-AC-O-175GD, A-AC-P-170175, A-AC-S-170175, A-FRM-ACCACO, A-SMAC201, A-FRM-MH, A-MH-O-HYDRSYST, A-MH-O-MF135, A-MH-O-MF1353CL, A-MH-P-MF135, A-MH-P-MF32LDR, A-MH-S-MF100LDR, A-MH-S-MF135150, A-SMMF27 And : Dim A (1): EasyNote: Replaces points & condenser w/ an electronic module. Increases spark plug life and
horsepower. Use w/ all 12V ground & 6V