As found on service sheet 432, for locos - R3872, R3762, R3827, R3514, R3579, R3609, R3691.
Hornby X7236 Hitachi Small Decorative NEM Couplings R3514
X6865 Hornby Spare Decorative Headlight Cowling for Class 31
R8219 X9289 Hornby Spare Pair NEM Couplings with Hooks NO POCKETS