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N-Possible

N-Possible 201-SBX-K - Medium Shank ScaleBox Coupler (2 Pair) - N Scale Kit

1 review Write a Review
$10.99
SKU:
NPO201-SBX-K
UPC:
628719814239
Availability:
All in-stock items ship within 1 business day
Current Stock:
25

Frequently Bought Together:

N-Possible 201-SBX-K -  Medium Shank ScaleBox Coupler (2 Pair)     - N Scale Kit
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Description

 

N-Possible Coupler Features

 
 
 
 
 
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Scale Size

Our N-Possible couplers are scale-sized N scale couplers.

That means no more "boxing gloves" overpowering your finely detailed models.

 
 
 
 
 
 
 
 
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Reliable Operation

Good looks mean nothing if the couplers don't do their job of reliably coupling cars.
Our N-Possible couplers out-perform other knuckle style couplers by every metric.

 
 
 
 
 
 
 
 
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Easy Installation

You can't take advantage of the N-Possible coupler if they're not easy to use.
A range of shank lengths and mounting options makes adopting the N-Possible easy.

 
 

N-Possible coupler features realized by the Patent Pending N-Possible spring mechanism:

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Precise Scale Design: Enhance authenticity with a meticulously detailed prototypical appearance. Compatible with other scale designs but not conventional couplers.

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Ultra-Low Force Automatic Coupling: Experience reliable scale-speed switching with minimal coupling force and easy pick uncoupling.

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Easy Installation: The retained spring design simplifies installation into car integrated boxes.

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Slip-Resistant Performance: Stays connected on uneven trackwork, maintaining reliability.

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Reliable Alignment: Dependable reverse movements and DPU/helper operation.

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Versatile Shank Lengths: Three shank lengths for prototypically accurate coupler configurations.

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Various Versions Available: Choose spring-mounted versions or kits.

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No Slinky Effect: Eliminates the “slinky” effect for a realistic look

 

The SBX series of “ScaleBox” couplers are for full coupler box replacement scenarios.

 

These couplers are supplied with a replacement coupler box that is narrow in profile and a “hat” that configures the box to fit a standard MTL box mounting profile.

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They are an easy replacement in existing body mount configurations where the box is a completely separate part or for conversion of truck mounted rolling stock to body mount.

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SBX couplers come with trainline air hoses to even further improve the realism of your converted models.

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If you are looking to convert models with factory integrated boxes, or most locomotives, the URS series of couplers is likely a better fit. 

Details

Store Location:
P# 231 / Aisle 12B #6815
Scale:
N Scale

Customer Reviews

1 review

  • 5

    Gamechanger

    Posted by Robert on 7th Nov 2025

    These new couplers from N-possible are a game changer for N scale. From ease of coupling/uncoupling, no slinky effect, and prototypical look and size, they really help elevate our N scale modeling.

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