Lionel No. 5122 027 Remote Right-Hand Control Switch – Mt. Clemens, Michigan Era – Classic O27 Accessory for Postwar & MPC Collectors!
Train collectors and layout builders – if you're running traditional O27 tubular track (Lionel postwar, MPC, or compatible modern setups) and need a reliable, remote-controlled right-hand turnout that looks sharp and functions smoothly, this Lionel No. 5122 Remote Right-Hand Control Switch from the Mt. Clemens, Michigan production era is a solid, authentic addition to your railroad!
The 5122 is the O27 counterpart to the classic postwar non-derailing switches – plastic base with metal rails, remote solenoid operation via the included controller (or compatible Lionel controllers), and that familiar olive green/gray plastic housing typical of early MPC (Modern Production Corporation) pieces made for Lionel in Mt. Clemens, MI (late 1970s–1980s transition period). It features:

Remote control – Throw the switch from your transformer or controller for hands-free routing
Non-derailing design – Built-in contacts help prevent derailments when a train approaches from the "wrong" side (great for automated loops or sidings)
Standard O27 compatibility – Works seamlessly with Lionel 027 tubular track, postwar locos/cars, and most MPC-era rolling stock
Dimensions – Approx. 8 3/4" straight section length (typical for these) – fits right into your existing layout without major modifications

Why collectors seek the 5122:
Mt. Clemens heritage – Made during Lionel's Mt. Clemens, Michigan factory days (often marked or associated with that location) – a nostalgic bridge between postwar and modern production
Reliable performer – These switches are known for smooth operation, good electrical contact, and durability – ideal for yard switching, passing sidings, or adding realism to freight/passenger runs
Display & layout value – Clean lines and classic Lionel styling make it look right at home on any vintage-inspired pike; easy to wire and troubleshoot

UPC   005015