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- May 11, 2026 8
Large-scale modelers (#1, A, G, F, and related gauges) often face coupler incompatibility when mixing equipment from manufacturers like LGB, Aristo-Craft, USA Trains, Bachmann, and others. Factory-installed hook-and-loop or varying knuckle designs lead to coupling incompatibility. Kadee® large-scale knuckle couplers solve this by providing an aftermarket knuckle coupler that is compatible across brands of equipment (when properly installed), while offering realistic appearance and smooth performance.
Choosing the right size Kadee® Coupler for your large scale layout.
Kadee® offers two primary sizes for large scale:G-Scale couplers: Larger profile suited to 1:22.5, 1:20.3, 1:29 models. These provide better coupling reliability on tight curves. Newer #900/906 (body mount) and #909 (truck mount) AAR Type “E” styles feature a more prototypical look with hidden knuckle springs. Original Style #830/831 have exposed knuckle springs. See kadee.com for comparison.
#1-Scale couplers: Smaller and
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- March 15, 2026 275
I have been getting so many questions about other couplers; I am thinking this needs to be addressed. Many people just assume that just because we make couplers, we made all the OEM couplers ever produced. Not true, we only make Kadee® Magne-Matic® Knuckle Couplers. We have not made, and do not make, hook & loop, horn hook (X2f), or any other proprietary coupler that you may have on old locomotives or rolling stock, whether it is HO, O, or Large Scale. If you are looking for old non-Kadee couplers, contact the manufacturer of the loco or car. If the manufacturer no longer exists, you are limited to the used parts market if you insist on keeping the original couplers; otherwise, you will need to upgrade to Kadee® Magne-Matic® knuckle couplers.
Also please don’t confuse the Chinese knockoff knuckle couplers with Kadee® Magne-Matic® knuckle couplers. There are many ways to tell if your equipment has a Chinese knockoff knuckle coupler. If you are having uncoupling problems, you have Chinese
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- June 10, 2025 251
I attended the 2025 Great Lakes Large Scale Train Expo at the Metroplex Expo Center in Girard, OH, a few weeks ago. It was a great venue and a nice, family-oriented show that got the kids involved in the hobby. I was able to discuss many new large-scale products that we’ve introduced over the last few years, which many customers were previously unaware of, as well as answer numerous questions about coupler conversions. There was a wide variety of new and used merchandise for sale, along with clinics and modeling contests. They even had a live steam train ride set up in the parking lot. If you’re in the area, even if you have to travel a bit, I recommend attending the show; it’s sure to be fun for the entire family.
We will also be attending the 40th National Garden Railway Convention in Sacramento, CA, at the SAFE Credit Union Convention Center, June 18-22. Kadee® will have a booth on Friday and Saturday in the Vendor Hall. Visit our booth and ask us about our new large-scale products;
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- April 15, 2025 2060
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- March 19, 2025 1542Now, this doesn’t matter if you are running HO-Scale, large scale, or some other scale in between. Everyone should be test-rolling their cars by hand through the tightest corners, switches, and S-curves to ensure every car used on the layout can freely roll through the curves your particular layout is equipped with. Please don’t assume that just because the car was advertised as able to navigate a particular track radius, it can navigate any and all configurations of your track freely. You want the car to roll freely through the curves, not just navigate the curves. If the wheels even slightly rub on underframe rigging, gearbox, or underframe, this will cause a compounding problem when you have more cars connected. Truck binding or rubbing causes drag on the car, causing the car to tip, roll, and rock. When multiple cars are connected, the connected cars also rock from the effects traveling through the couplers. This creates additional binding on the couplers, creating a chain reaction
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- May 07, 2024 1118Now that you have dusted off your large-scale rolling stock and locomotives, it is time to see how your outdoor layout held up over winter. Some track work will inevitably have to be done to get all your cars rolling reliably on it again. Have you noticed the longer modern cars get, the more sensitive they are to run on track? That is because the length of the car magnifies every dip, bump, or transition in the track.
Kadee® has a quick and easy solution for anyone with some of those fussy cars that like to slip apart on your layout. Now you can change out your G-Scale standard or type “E” Kadee® Couplers to one of the NEW “SE” top and bottom or SBE bottom shelf Kadee® couplers, and you will not be leaving your favorite car sitting on the siding anymore. The “SE” top and bottom or SBE bottom shelf Kadee® couplers will allow cars that don’t stay coupled from track imperfections to stay coupled up over those grades, bumps, and dips—no need to struggle with those slight track imperfections -
- April 09, 2024 902Large scale season is here!!!
It may not be the perfect weather where you are located to get out there and start running your outdoor layout yet, but it will be soon. Many of you are starting to dust off your rolling stock & locomotives that have been tucked away for the off-season and are now thinking of all those things projects you wanted to do but didn't get around to. Don't worry; you have plenty of time; you only need a couple of hours of sleep. Those of you who got new equipment in the off-season, may still need to get it equipped with Kadee® couplers so you can get it running with the rest of your layout. (see our conversion list at https://www.kadee.com/lscc)
Now, I know there are some newcomers out there who may be confused about all the proprietary couplers that come on the different brands of equipment and wonder why different brands of rolling stock and locos won't work together. Well, I am telling you they can; however, they can't all work together with the factory's proprietary -
- March 12, 2024 948#1 To keep your locomotives operating to their peak performance, regular maintenance is required. Just like your automobile, you have to check the tires. The Kadee® Speedi Loco Driver Cleaner cleans your locos drive pickup wheels, spinning away dirt and debris so the wheels make good contact. The wheels picking up the current from the tack is essential for your loco to run as smoothly as it can.
#2 Never use grease or any other liquid lubricant other than powdered graphite on couplers and trucks. Dry powdered graphite is the only lubricant Kadee® recommends. Liquid lubricants can react to the materials used in couplers, gearboxes, and wheelsets, and trucks are made from shortening the life expectancy. Liquid lubricants also attract dirt and debris, drying out over time and making for a sticky, messy cleanup. Lubricants are supposed to make parts move freely without a sluggish response. -
- January 16, 2024 857From a modeling stand point, the majority of couplers on the market represent the Type “E” coupler, but in general appearances, the “scale” couplers presently marketed can be used to represent the early Janney couplers. This means modelers in any scale can use knuckle couplers for models back to the 1880s and be, at least functionally and in general appearance, prototypical.
Specialty couplers began to appear experimentally in the late 1930s and in 1947 the Type “H” was standardized. The Type “H” sometimes known as the “Triple Lock” or “Tightlock” and, because of it’s safety features, was used on the newly developed high speed passenger trains.
The first interlocking coupler use for freight cars was the Type “F” coupler introduced in the 1940s was made Alternate Standard in 1954. The Type “F” coupler is basically a Type “H” coupler with an additional bottom shelf. Then in the late 1960s the top and bottom shelf Type “SF” coupler was developed and standardized in 1970 for hazardous material -
- November 08, 2023 1499Buyer Beware! Some individuals are selling "Clone Knuckle Couplers" as Kadee® Couplers!
We just recently discovered this with our NEM Couplers, and I am sure it has also been going on with our Standard Knuckle Couplers. Someone was selling on eBay Kadee® #19 NEM Couplers using Kadee® product descriptions & Kadee® photos. The product listing claims the products were Kadee® #19 Couplers, but in fact was a poorly made NEM Clone Knuckle Couplers made in China. This is something that people shopping on 3rd party venues, such as Amazon, eBay, or any other 3rd party site that allows anyone to sell on, will have to police and report any violations to the third-party venue yourself. Don't be conned by shady business practices.
Kadee® Couplers are Made 100% in the USA.
Kadee® HO Couplers all have Metal Knuckles, with the exception of our 3/4 size old-time Plastic Couplers.
Clone Knuckle Couplers only "uncouple"; they don't allow the coupler to go into the "delay" position where the coupler head pulls
