BT10 - Pair of coach bogies for the original BR MK3 coach as used in the Intercity 125 models. BR1 - Pair of coach bogies for the original BR MK1 coaches but also fitted to most of Hornbys coach models.
Hornby OO Gauge British Rail MK1 Coach Bogie Complete Frame, Axles & Wheels B3H
R339-R422 Hornby OO Gauge British Rail MK2 / B4 Style Black Coach Bogie Complete
Hornby OO Gauge British Rail MK3/BT10 Coach Bogie Frame/Wheels/Axles Complete x1
