57-0497 T497. THESE ARE MADE BY LF HARRIS TO ORIGINAL DRAWINGS.
Haynes Manual 251 - Triumph Pre-unit Twins, 1947 to 1962
TRIUMPH PRE UNIT TWINS 5T 6T REAR CHAIN OILER SCREW 57-0496 T496 UK MADE
Triumph Pre-Unit Twins (1947-1962) Haynes Repair Manual
PAIR BLACK RUBBER KNEE GRIPS PADS TRIUMPH LOGO TIGER T20 CUB & PRE UNIT TWINS
Triumph Pre Unit Throttle/Twist-Grip 15/16 in - Triumph T100 Pre Unit - 97-0697
TRIUMPH PRE-UNIT EARLY UNIT FINNED EXHAUST CLAMP X2 E 4501 5T 6T T110 TR6 T120