Spark Plug Champion L82C. NGK B7HS.
14 mm Thread
AJS 1946 500cc, 1947-49 All Models (cast iron head)
Ariel Square 4 Cast iron and MkI alloy, OHV Models Cast iron 14mm except VB, FH Models
BSA A7, A10GF, B31, B33, B32 cast iron head, C12, Bantam D1 1954 onwards, D3, D5, D7, M33
Douglas 350cc Mark V, Dragonfly, 350cc Comp. Model, 350cc 80Plus, 90Plus
Greeves 24 TJ
Matchless 1946 500cc, 1947-49 all models cast iron head
Norton Model 18 490cc OHV 30, 40 Cast Iron, ES2, 88, 7, Cast Iron
Royal Enfield 350cc Clipper & G, 248ccc. Clipper & Crusader & J2 500cc, 248cc Olympic, Continental, Continental GT, 350cc Bullet, 500cc Bullet 1/2" reach, Super Meteor, Meteor Minor to Eng. No. SMCA7027, 700ccMeteor Twin, 500cc Twin 12" reach, Trial Works Replica, 249cc Turbo Twin
Rudge Special & Ulster 14mm Cast Iron, All other models 14mm
Scott Fast Riding
Sunbeam 14mm
Triumph 150cc Terrier, T20, T20C, T20T, T20SL, Tiger Cub, T20SH, TR20, Trials Cub, Super Cub, Sports Cub, TS20 Scrambler, 3T, 5T Speed Twin, 6T Thunderbird & TR5 Trophy, Cast Iron, T100, T110 Cast Iron, OHV models 14mm, SV Models 18mm, Model TRW SV army
Velocette MOV 250cc OHV, MAC 350cc Cast Iron Head, MSS 500cc Cast Iron Head
Villiers Engines 50cc MK.3K, 98cc Mks 1F, 2F, 4F, 6F, 122cc 11D, 147cc 29C, 30C, Fan Cooled, 147cc 30C, 148cc Mk 31C, 173cc 2L, 3L, 197cc 6E, 7E,9E, 10E,11E, 225cc 1H, 246cc 2H, 246cc 31A/4S, 31A/3S, 32A. 35A. 37A, 250cc 4T Twin, 324cc 3T Twin, 353cc 28B
Vincent 14mm
