KD-21 HO Scale Long (25/64″) Underset Shank Couplers – Pair

$7.66

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SKU: KD-21 Category: Brand:

Description

This industry leading coupler features plastic standard coupler with metal knuckle, and #634 standard centering spring and comes complete with insulated draft gearbox and lid. The #21 Magne-Matic® Plastic Coupler may be mounted with the included #213 or #232 Gearbox or with most other manufacturers cast-on coupler pockets.

Package Includes:

  • (2) Pair #21 Plastic Shank Couplers – Long Underset Shank
  • (2) Pair #634 Centering Spring NO.5® Style
  • (2) Pair #213 055″ ID & .100″ ID Bushing/Sleeves
  • (2) Pair #212 Talgo Truck Adaptors
  • (2) Pair #213 Gearboxes
  • (2) Pair #232 Gearboxes
  • (2) #622 Knuckle Springs

It is not recommended to use a metal coupler directly on a metal surface or in a metal draft gearbox to avoid possible electrical crossover and shorting that may cause damage.

#21 Plastic Coupler Features:

Material  –   Metal Knuckle, Plastic Coupler Shank
Shank Length  –   Long (25/64″) (center hole to back of coupler head)
Coupler Offset  –  Underset
Knuckle Spring  –   #622
Centering System  –   Standard Shank
Centering Spring  –   #634 Centering Spring NO.5® Style
Head  –   Standard Head
Works In Place of  –  #141, long underset “clone” couplers
Works With  –   #213, #232, #234, #242, most manufacturer cast-on draft gearboxes

#212 Talgo Truck Adaptors:

Material  –   Insulated Plastic
Works With  –   NO.5®, #58, 20-Series and all Whisker® Couplers
To check coupler height, set the coupler into the talgo truck pocket and hold it level as possible and check the coupler height with a #205 or newer #206 HO coupler height gauge.
NOTE: So it is important to check coupler height and make sure it is correct before you insert the talgo truck adaptor, because it’s almost impossible to remove without breaking something.

#213 Plastic Draft Gearboxes:

Material  –   Insulated Plastic
Dimensions  –   25/64″L x 5/16″W x 3/32″H
Works With  –   NO.5®, #58, 20-Series and all Whisker® Couplers

#232 Plastic Draft Gearboxes & Lids Features:

Material  –   Insulated Plastic
Dimensions  –   29/64″L x 19/64″W x 7/64″H
Works With  –   NO.5®, #58, 20-Series and all Whisker® Couplers

#21 with a #212 Talgo Truck Adaptor. Mounting Specifications:

Centerline  –   25/64″
Trip Pin Height  –   1/32″

#21 in a #213 monted on bottom. Mounting Specifications:

Mounting Height  –  25/64″
Centerline  –   25/64″
Trip Pin Height  –   1/32″
Center Hole  –   2-56 Insulated Screws are the most commonly used. (Screw length will vary)

#21 in a #213 monted on top. Mounting Specifications:

Mounting Height  –   19/64″
Centerline  –   25/64″
Trip Pin Height  –   1/32″
Center Hole  –   2-56 Insulated Screws are the most commonly used. (Screw length will vary)

#21 in a #232 Mounting Specifications:

Mounting Height  –   25/64″
Centerline  –   25/64″
Trip Pin Height  –   1/32″
Center Hole  –   2-56 Insulated Screws are the most commonly used. (Screw length will vary)
Side Holes  –   0-48 Self-Tapping or 0-80 Machine Screws. (Screw length will vary)

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