A set of universal insulated draft gear boxes and lids from Kadee designed to simplify coupler installations and conversions on HO scale rolling stock. These “Black Box” snap‑together gear boxes are ideal for mounting Kadee® Magne‑Matic® Whisker® couplers and many other types in place of manufacturer moulded‑on gearboxes. The simple snap‑fit design makes assembly fast and easy.

Features / Product Details

• Designed for HO Scale (1:87) use

• Includes 10 pairs of insulated gear boxes and lids

• Snap‑together design speeds installation without tools

• Works with Kadee No.5®, #58, and all 20‑Series couplers, and many Whisker® couplers

• Makes adapting couplers to models easier where original gearboxes are missing or unsuitable

• Compatible with a wide range of draft gear pockets and coupler types

Uses

• Replace moulded‑on gearboxes in HO rolling stock

• Prepare cars for Kadee® or Whisker® coupler installations

• Useful for workshop, layout maintenance, and coupler upgrades