This is a A-21A308DLS Module, Electronic Ignition PN: 21A308DLSMain Description As Following : A-21A308DLS Module, Electronic Ignition P.N: 21A308DLS 6 Cyl. Models W/ 12 Volt Negative Ground Or 6 Volt Systems Converted To 12 Volt Negative GroundDim A (1): For Delco Distributor#'s: 1111702, 111704, 1112555, 1112581, 1111750, 1885619, 1112587, 1111731 Found in Section & Models : Ignition & Electrical Parts > Ignition & Related Parts, John Deere TRACTOR: SEVERAL (W/ DELCO Distr. 1111702, 1110136 or 11125810), John Deere TRACTOR: 4010 (Delco Distributor 1112581), White/ Oliver/ Mpl Moline TRACTOR: SUPER 66 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: SUPER 77 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: SUPER 88 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: SUPER 99 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: 66 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: 660 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: 77 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: 770 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: 88 (Delco Distributors W/ Clip On Caps), White/ Oliver/ Mpl Moline TRACTOR: 880 (Delco Distributors W/ Clip On Caps) Associated Items : New Also A-FRM-JD, A-JD-O-OMR32129, A-JD-P-PC737, A-JD-S-SM2039, A-MW-OP-JD4010, A-MW-S-TURBO, A-SMJD203, A-FRM-IHOL, A-OL-O-66SUPER, A-OL-P-66, A-OL-S-3VOLUME, A-SMO201, A-FRM-IHOL, A-OL-O-SUP7788, A-OL-P-SUP7777, A-OL-S-3VOLUME, A-SMO201, A-FRM-IHOL, A-OL-O-SUP7788, A-OL-P-88S88 And : Used W/ Delco Dist. 1112562 Dim A (1): For Delco Distributor#'s: 1111702, 111704, 1112555, 1112581, 1111750, 1885619, 1112587, 1111731