Kadee #503 Arch Bar Trucks are metal, fully sprung equalized trucks for HO scale railroad rolling stock. They include Ready-to-Mount Whisker® couplers and 33" ribbed-back wheels for historically styled freight-car projects.
Product details
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Brand: Kadee
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Scale: HO
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Material: Metal
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Contents: #503 arch bar trucks with Ready-to-Mount Whisker® couplers and 33" ribbed-back wheels
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Compatibility: HO scale rolling stock; no specific kit compatibility is listed in the product data
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Set size: The product data does not specify a set count
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Mounting: Uses a #2 or 2-56 screw; mounting screws are not included
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Coupler assembly: Whisker couplers require assembly onto the truck coupler bottom plate
Historical context
Arch bar trucks were common on railroad equipment around the late 1800s and early 1900s and remained in interchange service until about 1941. They also appeared on logging and industrial railroads after that period, making this style useful for period-specific HO layouts and rolling stock.
Manufacturer information
For manufacturer details, visit Kadee. Browse related HO trucks and wheels for compatible railroad modeling projects.