Model Type Dist.Cap Rotor Contacts Condenser Year Comment --------------------------------------------------------------------------------------------------------------------------- TA/TB DK4A 418888 400051 407050 409613 TC DKY4A 418888 400051 407050 409613 1946-9 32 degrees, Spring No 404598 40048B giving ECM curve NO 279 (14-16 degrees), and a Micro Adjuster and clamp plate 405903 TD D2A4 418888 400051 407050 409613 1950-2 Early TD and similar to 40048 with the 40162A to D same spring set and advance curve, only difference is the adjuster, and uses the same clamp plate as 40048, ie 40422 TF D2A4 418888 400051 407050 40367 & 40367A MG 1.25 Y 40058A 1953 40058A has a shorter stem than 40048/40162, and spring no 405583 giving ECM curve 279, so giving a less hot advance ECM curve (Both are 14-16 degrees), No Micro Adjuster and clamp plate 404422 Saloon Morris 10 40058A 1937-47 40058A has a shorter stem than 40048/40162, and spring no 405583 giving ECM curve 279, so giving a less hot advance ECM curve (both are 14-16 degrees). No microadjuster and clamp plate 404422 Autor: Clive Sheriff