Spark Plug Champion L86C. NGK B5HS. B6HS.
BSA A7/A10 - Iron Head
WM20 up to 1949 -Iron Head for 14mm
JM20
M20
BSA Bantam -D1-D14
fitted to most iron head motorcycles with 14 mm
Please Note:
M20 and 16H owners, please check the size of your spark plug, as it can be 14 mm or 18 mm.
If 18 mm order spark plug D9 or D14
AJS OHV Models 14mm, 1946 350cc
Ariel SV Models 14mm, 1/2" reach
BSA Bantam D1 1954, M21 Cast Iron Head
DOT Vivi Monza 50cc
Greeves Anzani engines
Matchless SV models 14mm, 1946 350cc
Royal Enfield Ensign, RE, Prince
Scott 498-596 Flying Squirrel Town Riding
Triumph SV models 14mm exept TRW
Velocette GTP 250cc 2 stroke
Villiers Engines 98cc Junior, 98cc 4F, 6F,122cc 8D, 9D, 10D, 12D, 13D, 247cc Starmaker (Trials)
Banjo BSA.
for Petrol Tap
suitabel for BSA A10 A7 Swinging Arm
ID Hole diameter 7/16"
see measurements in last pictures
suitabel for Petrol Tap 42-8075
Triumph Abutment T90-T140
650cc 1967
BSA: A50-A65
Please note, if cases have been changed, it could fit other years
Outer thread 16 TPI
Inner Thread 5/16 UNF 22 TPI