Bulk Couplers

We have had a recent influx of emails requesting bulk pricing on our couplers. We have also received a few emails complaining about the price of our new specialty products. We can't do a lot about pricing on these specialty investment cast products (shelf couplers, etc.). These are low demand items with high manufacturing cost. However, we are at a point now where we can do something about pricing of our high demand die cast products. We think you'll agree that this new pricing more than offsets the higher prices on the low demand items.

Since our EC87 kits are by far our biggest seller, we'll start there: 144 (one gross) EC87 couplers in kit form, only $84. That's half price compared to pricing of the 6-pack EC87K! That's almost 30% lower than Brand K bulk pricing! Why would you pay more for a less realistic coupler?

This is the same highly detailed, highly reliable, metal, made in the USA product as before. The only difference is the price (and the number of couplers of course).

To order, click on the "Products" button to the left and select either "Compatible Shank" or "Narrow Shank" to select the bulk package you are interested in.

Break-in Procedure

Customers Please Note: Lately, we've had some customers comment that their couplers don't operate as smoothly out of the package as they think they should. It seems that in all cases, the break-in step shown in the instructions was overlooked. "Oh, I didn't know that was really required." We can't fault anyone for not reading the instructions, but this really is an important step. Click here to see our recommended break-in procedure plus a few tips.

Type F Couplers!

We now have four variations of Type F couplers in stock and ready to ship. Start by choosing your desired shank style under the Products button at the left.

The type F coupler was first made available to prototype railroads in 1954 as a modification of the popular type H tightlock coupler for passenger car use. Type F couplers have the same plug and socket arrangement on the sides of the coupler as the type H. The type F couplers also include a lower shelf with an interlocking pin. This was a safety feature that served to support a mating coupler that had broken away from the car. The feature prevents the massive coupler from falling onto the track and causing a catastrophic derailment. These couplers are installed on all types of rolling stock. Sergent Engineering offers this coupler in both compatible shank and narrow shank versions. Preassembled couplers are available now. Kits are not offered yet, but will be once we are confident that the customer won't experience any problems during assembly.

Type SF double shelf couplers became an AAR standard for in 1975. These double shelf couplers limit the vertical movement of a mating coupler and prevent the mating coupler from riding up and puncturing the tank in a derailment. Sergent Engineering offers this coupler in both compatible shank and narrow shank versions. Preassembled couplers are available now. Kits are not offered yet, but will be once we are confident that the customer won't experience any problems during assembly.

Tailor Made

Choose Tailor Made under the Products button at the left to see Sergent Engineering's couplers that are tailor made for Railflyer Model Prototype applications.

Type H Tightlocks on the way!

Passenger car enthusiasts will be delighted with our type H couplers. Our coupler design is complete. We are currently completing the design of the uncoupling wand that will slip under passenger car diaphrams. Stay tuned!




































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