The #143 is interchangeable with the #23 and most manufacturer’s Short Centerset OEM knuckle couplers. For a #33 equivalent use the #143 in a#252 Gearbox.
Package Includes:
- (2) Pair #143 Whisker® Metal Couplers – Short Centerset Shank
- (2) Pair #242 Snap-Together Gearboxes & Lids
- (2) Spare #622 Knuckle Springs
