Pole pieces X5141 plus magnet S5147 fits Triang Hornby R 357 locomotive. As shown in photos.
X03 Motor Upgrade - 5 pole skew-wound motor with flywheel - Triang / Hornby
X04 Motor Upgrade - 5 pole skew-wound motor with flywheel - Triang / Hornby
HORNBY S5142 Pole Piece Triang Dock Shunter OO gauge Used Working