Package Includes:
(2) Pair #158 Scale Whisker® Metal Couplers - Medium Centerset Shank
(2) Pair #242 Snap-Together Gearboxes
(2) #625 Knuckle Springs


#158 Scale Whisker® Metal Coupler Features:
Material - Metal
Shank Length - Medium (9/32") (center hole to back of coupler head)
Coupler Offset - Centerset
Knuckle Spring - #625
Centering System - Whisker®
Head - Scale Head
Works In Place of - NO.5®, #58, #28, #38 (#148 in a #252 box), #118, #119, #158, & medium centerset "clone" couplers
Works With - #213, #232, #234, #242, #252, #262, & most manufacturer cast-on coupler pockets* (molded-on gearbox).

*Note: Some manufacturers now produce models with non-industry standard coupler pockets (molded-on gearbox). These shallower coupler pockets may require slight modification to the gearbox or coupler to function properly. If the model has a shallow molded-on gearbox, the top of the #158 Whisker® coupler shank may be filed thinner to fit the shallower cast-on coupler pockets.

#242 Snap-Together Gearbox Features:
Material - Insulated Plastic
Lid Type - Snap-Together
Dimensions - 7/16"L x 5/16"W x 1/8"H
Works With - NO.5®, #58, 20-Series and 40-Series, All Whisker® Couplers

Mounting Specifications:
Mounting Height - 29/64"
Centerline - 25/64"
Trip Pin Height - 1/32"
Center Hole - 2-56 Insulated Screws are the most commonly used. (Screw length will vary)