#21 HO Scale 20-Series Plastic Couplers with Gearboxes - Long (25/64") Underset Shank
#21 Couplers - Long Underset Plastic Shank
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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.
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.
Refer to our helpful Coupler Conversion Charts to determine the appropriate coupler to use on your model.
20-Series Coupler Instructions
20-Series Chart
Two pair per package
UPC: 765484000211
Made in the U.S.A.
HO-Scale
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
| 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 |
| 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. | |
| 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 |
| 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 |
| Centerline | - 25/64" |
| Trip Pin Height | - 1/32" |
| 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) |
| 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) |
| 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) |
Recommended Tools:
- #206 Insulated Multi-Purpose Coupler Height Gauge
- #230 Talgo Adaptor Insertion Pic
- #231 Greas-em Dry Graphite Lubricant
- #237 Coupler Trip Pin Pliers
- #240 Double Headed Pin Vise
- #241 Dual Tool Manual Uncoupling Tool and Spring Pick
- #246 Tap (2-56) and Drills (#50 and #43)
- #780 Tap (0-80) and Drills (#55 and #52)
WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov WARNING: CHOKING HAZARD - Small Parts - Not for children under 14 years.Kadee Quality Products Co. products are not toys and are not intended for children under 14 years old.
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