Fits onto the existing motor pillars without any chassis modification. If you have the smaller version of the motor, this will not fit.
Union Mills N Gauge BR Black Early Emblem 0-6-0 Class J38 No.65929 - Boxed
Union Mills N Gauge LNER J39 0-6-0 BR Black Early Crest No.1802 - Boxed
Union Mills N Gauge LNER Black 0-6-0 Class J25 No.5650 - Boxed
Union Mills N Gauge BR Class J27 0-6-0 BR Black Early Emblem No.65785 - Boxed
Union Mills N Gauge Replacement Motor Large
Union Mill N Gauge J39 Locomotive BR Black Early Crest No.64701 - Boxed