Shop K-Line trains for sale, including locomotives, rolling stock, train sets, track, accessories, buildings, controls, and other 3-rail equipment. Trainz carries changing inventory of used, collectible, discontinued, and new old stock K-Line models as available.
Explore more O Gauge Model Trains, or browse trains across scales and manufacturers in Model Trains.
Shop K-Line trains for O Gauge and 3-rail railroads, from locomotives and rolling stock to complete train sets, track, buildings, operating accessories, and replacement parts. Since original K-Line production has ended, Trainz inventory changes as used trains, estate finds, collectible releases, boxed sets, and occasional new old stock (NOS) return to the market.
Looking for a particular locomotive or car? Start with the K-Line categories below. Train sets, track, buildings, accessories, and other K-Line equipment without a dedicated collection can be found throughout the broader K-Line selection.
K-Line offered much more than individual locomotives and cars. Its O Gauge lineup included complete freight and passenger train sets, O27 and O Gauge tubular track, switches, operating accessories, transformers, controls, buildings, and other equipment for traditional 3-rail layouts.
K-Line produced freight, passenger, starter, holiday, and other specialty train sets. Older sets may appear complete in their original packaging or return to the market as individual locomotives and cars separated from the original set.
K-Line sold traditional 3-rail tubular track, including O27 track, along with switches and related track components. The company also offered operating and animated accessories that added movement and action to O Gauge layouts.
K-Lineville was K-Line's line of model railroad buildings and structures. Many early designs used former Marxville tooling with new colors, signs, and decoration, while later offerings included modified and newly tooled structures.
K-Line grew from MDK, the business founded by Maury D. Klein in 1975. MDK began as a Lionel dealer and mail-order business before the K-Line name developed into a model-train brand of its own.
Acquiring older tooling helped K-Line expand quickly. Former Marx tooling provided a foundation for trains, buildings, and accessories, while Kusan-derived tooling also became part of the company's product history. Early offerings leaned heavily toward affordable O27 equipment, but K-Line later developed increasingly detailed O Gauge locomotives, rolling stock, passenger cars, and other models.
That range is part of what makes K-Line collecting interesting today. The catalog included traditional toy-train equipment, more scale-oriented models, operating accessories, structures, and products aimed at different styles of O Gauge railroading.
K-Line was an independent brand for most of its history, not simply a Lionel product line. After MDK/K-Line entered bankruptcy, Sanda Kan acquired the K-Line brand and intellectual property and licensed them to Lionel.
Lionel later marketed products under the K-Line by Lionel name. That branding belongs to the later licensing period and should not be used to describe the earlier decades of K-Line trains produced under MDK.
After the K-Line by Lionel period ended, former K-Line tooling did not remain with a single manufacturer. Tooling associated with K-Line was distributed among several companies, and former K-Line designs later appeared through manufacturers including Atlas, Bachmann/Williams, Lionel, and RMT.
There is no single type of K-Line collector. Some shoppers want traditional O27 trains to run, while others are looking for scale-oriented locomotives, passenger cars, operating accessories, K-Lineville buildings, complete train sets, or a particular K-Line by Lionel release.
Because original K-Line production has ended, finding the right piece often depends on what resurfaces. Trainz may receive individual trains, larger collections, estate finds, original-box examples, or new old stock that has spent years stored rather than operated.
If you are trying to identify a particular K-Line model, the catalog number is often a useful starting point. Road name, packaging, dimensions, operating features, and whether an item dates from the original K-Line or later K-Line by Lionel period can also help narrow it down.
Trainz buys qualifying model train collections that can include K-Line locomotives, rolling stock, train sets, accessories, buildings, track, and parts. Learn more through Sell My Trains – How It Works.
K-Line is best known for O Gauge and O27 3-rail trains. The company also produced some S Gauge equipment.
No. Original K-Line production has ended, so K-Line trains are now primarily found through the pre-owned, collectible, and new old stock market.
Not exactly. Sanda Kan acquired K-Line after MDK's bankruptcy and licensed the K-Line brand and intellectual property to Lionel.
K-Line by Lionel was the later licensed line of K-Line products marketed by Lionel. It is separate from the earlier decades of K-Line trains produced under MDK.
Many K-Line O Gauge 3-rail trains can operate with compatible Lionel O Gauge equipment. Minimum curves, controls, couplers, and electrical requirements still depend on the individual model.
Trainz sells K-Line trains as they become available, including locomotives, rolling stock, train sets, track, accessories, buildings, parts, and occasional new old stock.
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