This is a A-21A62 Tune Up Kit PN: 21A62Main Description As Following : A-21A62 Tune Up Kit P.N: 21A62 Kit contains points, condenser, rotor & spark plugs - To service all battery ignition 1963> w/ IH distributor.Thread: 18mm Crossed From: IHTK2 , Found in Section & Models : Ignition & Electrical Parts > Ignition & Related Parts, Case-IH INDUSTRIAL/CONSTRUCTION: 2504, Case-IH INDUSTRIAL/CONSTRUCTION: 2606, Case-IH INDUSTRIAL/CONSTRUCTION: 2706, Case-IH INDUSTRIAL/CONSTRUCTION: 2806, Case-IH TRACTOR: 454 (W/ C157 4 CYLINDER ENGINE), Case-IH TRACTOR: 504, Case-IH TRACTOR: 504 (W/ C153 4 CYLINDER ENGINE) Associated Items : New Also A-IH-O-2504-I, A-IH-O-3121, A-IH-P-3082, A-IH-P-5042504, A-SMIH201, A-IH-O-2606, A-IH-O-3121, A-IH-P-3082, A-IH-P-6062606, A-SMIH25, A-IH-O-706, A-IH-O-706EARLY, A-IH-P-706, A-IH-S-ENGD155, A-IH-S-ENG460ETC, A-IH-S-ENG6CYLG, A-SMIH32, A-IH-P-8062806, A-IH-S-806, A-SMIH32 And : Thread: 18mm