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Available to orderSKU: KAD552

Kadee HO 552 50-Ton A.S.F. A-3 Ride-Control Self-Centering Trucks with 33" Smooth Back Wheels

$13.29

Kadee HO 552 50-Ton A.S.F. A-3 Ride-Control Self-Centering Trucks with 33" Smooth Back Wheels is an exact Kadee item for model-building or model-railroad work. Product detailsManufacturer: Kadee Manufacturer part number: KAD552 Product details: The ASF A-3...

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Scale
HO
Part number
KAD552

Compatibility: Confirm scale, gauge, track family, rail code, power type, DCC status, minimum radius, coupler and required components. Matching scale or brand alone does not prove compatibility.

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Product details

Kadee HO 552 50-Ton A.S.F. A-3 Ride-Control Self-Centering Trucks with 33" Smooth Back Wheels is an exact Kadee item for model-building or model-railroad work.

Product details

  • Manufacturer: Kadee
  • Manufacturer part number: KAD552
  • Product details: The ASF A-3 Ride Control 50-ton freight truck was introduced in the 1940s and is one of the forerunners of modern freight trucks. Features embodied into this design include a longer spring travel, no spring planks and constant friction control using friction castings in the bolster to dampen excessive lateral roll of the car. These design features allowed for a higher train speed with less danger of derailment than previous designs. ASF sold over 140,000 sets by 1949. This truck is excellent for modeling the transition era up to 1994 when friction bearings were no longer allowed in interchange service Code .110 33" smooth back wheels Accurate markings Incredible detail, true to prototype Non-magnetic metal wheels Highly flexible sprung trucks Metal sideframes and fully sprung bolster Smooth-tracking, free-rolling, contoured insulated axles RP-25 free-rolling wheels

Use and assemble this product according to the manufacturer instructions and the package contents stated above.

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Specifications are listed alongside the product details above.

Condition & collecting

Match the listed scale and track gauge to your layout. For locomotives, check the power system, decoder and sound details; DCC ready does not mean a decoder is installed. For rolling stock, check couplers, clearance and the manufacturer's minimum-radius requirement where provided.

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$100.00 away from the $100 free-shipping threshold. Add only what your project actually needs.

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Useful next steps

These are category-level pathways, not a claim that every part fits every casting.

Start with a prepared casting

DIY kits provide a cleaner starting point, but the specific wheel pairing still needs its own fit check.

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Fitment is evidence-gated

A shared diameter is only a starting clue. It is not exact-fit proof.

Learn before final assembly

Use demonstrations as practical guidance—not as proof that a different casting or component will fit.

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