Willison Freight Coupler Assembly
The Willison coupler is a robust, assembled freight rail coupling system with high tensile strength for connecting hopper and gondola cars in bulk freight trains. Classified under HTS 8607.30.10.10 due to its complete assembly and design for 8606 freight vehicles.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If repair or replacement parts, not full assembly
Individual coupler components or subassemblies classify under other railway parts.
If sold with integrated hydraulic mechanisms
Couplers incorporating flywheels or gearing shift to transmission shafts classification.
If adapted for road-rail hybrid vehicles
Dual-use couplers for truck-rail conversions fall under motor vehicle parts.
Not sure which classification is right?
The Tariff Assistant works through the GRI rules on your specific product to reach the right HTS code — and can price the duty on it in the same conversation.
Import Tips & Compliance
• Include material certs (e.g
• AAR Grade E steel) and weld inspection reports for compliance
• Label clearly as 'assembled for freight cars' to distinguish from parts or passenger types
• Avoid delays by pre-filing with railroad compatibility data via ACE system
Related Products under HTS 8607.30.10.10
Gondola Car Assembled Coupler
Standard assembled freight coupler fitted for open-top gondola cars used in coal and aggregate transport. Meets AAR specs for reliable coupling, under HTS 8607.30.10.10.
Hopper Car Freight Coupler
Assembled coupler optimized for covered hopper cars in grain and mineral service, with dust-resistant seals. HTS 8607.30.10.10 for 8606 freight.
Boxcar Standard Freight Coupler
Assembled AAR standard coupler for general service boxcars, ensuring versatile train makeup. HTS 8607.30.10.10 classification.
Flatcar Assembled Rail Coupler
Heavy-duty assembled coupler for flatcars hauling lumber, steel, and machinery. For 8606 freight under HTS 8607.30.10.10.
AAR Type E Freight Coupler
The AAR Type E is a standard assembled freight rail coupler used on North American freight cars for connecting rolling stock during train operations. It features a contoured knuckle and locking mechanism compliant with Association of American Railroads standards, classified under HTS 8607.30.10.10 as an assembled coupling device specifically for freight vehicles of headings 8606.
Type F Tightlock Freight Coupler
An assembled Type F tightlock coupler designed for secure, high-strength connections on modern freight railcars, particularly intermodal and heavy-haul applications. It includes integrated lockset and anti-creep features, fitting HTS 8607.30.10.10 for assembled freight couplers on 8606 rolling stock.