Official data Source: US Census Bureau international trade data
Track this productHooks and other coupling devices, buffers and parts thereof, for railway or tramway vehicles
In short
- The US imported $72.2M of this product over the 12 months to August 2026, down 22% on the year before.
- Mexico is the largest supplier, with 29.3% of US imports; Poland is next, with 21.8%.
- Canada is the cheapest main supplier before and after freight and duty, landing at $2.76/kg.
- Duty paid averaged 28.4% of the value of imports in August 2026, up 4.4 points on a year earlier.
- Poland is gaining share: 23.9% over the last 12 months, up from 15.7%.
- 7 Federal Register notices named this product's tariff codes in the last 12 months.
US imports, Aug 2026
$6.9M
↑ +6.2% vs Aug 2025
Last 12 months
$72.2M
↓ −22% vs the 12 months before
Average duty paid
28.4%
↑ +4.4 pts vs Aug 2025
Top supplier
Mexico
29.3% of US imports
US imports by month
The last 13 months, so the same month a year ago is on the left. August 2026 is highlighted. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.
Show the numbers
| Month | US imports |
|---|---|
| August 2025 | $6.5M |
| September 2025 | $6.3M |
| October 2025 | $8.2M |
| November 2025 | $5.8M |
| December 2025 | $4.4M |
| January 2026 | $4.7M |
| February 2026 | $5.2M |
| March 2026 | $5.2M |
| April 2026 | $5.4M |
| May 2026 | $7.2M |
| June 2026 | $6.7M |
| July 2026 | $6.4M |
| August 2026 | $6.9M |
What changed
- US imports were $6.9M in August 2026, up 7.8% from July 2026 and up 6.2% from August 2025.
- Over the 12 months to August 2026 they totalled $72.2M, down 22% on the 12 months before.
- Biggest moves in market share since July 2026: Poland up from 16.8% to 21.8%, China down from 27.8% to 18.5%.
- Average price from Poland fell 26% since July 2026, to $28.64/kg.
- Duty paid on imports from United Kingdom fell from 27.4% to 17.6% of their value since July 2026.
- Duty paid on imports from Poland fell from 22.5% to 19.6% of their value since July 2026.
US trade by year
US imports were $72.2M in the 12 months to Aug 2026, up 8.1% on the 12 months to Aug 2017. US exports were $100.0M, down 33%. In January 2022 the HS 2022 revision moved some goods between this code and 8524.11, 8524.12, 8524.19 and 4 more, so part of a change across the dashed line can be the revision. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.
Show the numbers
| Period | US imports |
|---|---|
| 12 months to Aug 2017 | $66.7M |
| 12 months to Aug 2018 | $96.9M |
| 12 months to Aug 2019 | $112.6M |
| 12 months to Aug 2020 | $102.2M |
| 12 months to Aug 2021 | $71.7M |
| 12 months to Aug 2022 | $103.3M |
| 12 months to Aug 2023 | $101.7M |
| 12 months to Aug 2024 | $87.2M |
| 12 months to Aug 2025 | $92.7M |
| 12 months to Aug 2026 | $72.2M |
- Mexico
- Poland
- China
- India
- All countries
Show the numbers
| Period | Mexico | Poland | China | India |
|---|---|---|---|---|
| 12 months to Aug 2017 | 35.3% | 3.1% | 40.8% | 0.3% |
| 12 months to Aug 2018 | 21.0% | 2.7% | 57.0% | 0.7% |
| 12 months to Aug 2019 | 28.5% | 2.8% | 51.7% | 1.9% |
| 12 months to Aug 2020 | 27.2% | 4.0% | 47.8% | 1.3% |
| 12 months to Aug 2021 | 25.9% | 11.0% | 38.1% | 3.2% |
| 12 months to Aug 2022 | 29.4% | 8.1% | 42.0% | 2.7% |
| 12 months to Aug 2023 | 34.5% | 9.7% | 33.1% | 4.6% |
| 12 months to Aug 2024 | 39.0% | 10.5% | 26.8% | 6.0% |
| 12 months to Aug 2025 | 27.2% | 15.7% | 23.5% | 14.6% |
| 12 months to Aug 2026 | 27.5% | 23.9% | 19.4% | 13.2% |
Show the numbers
| Period | Mexico | Poland | China | India | All countries |
|---|---|---|---|---|---|
| 12 months to Aug 2017 | 0.0% | 3.2% | 3.4% | 2.3% | 2.1% |
| 12 months to Aug 2018 | 0.0% | 3.4% | 3.5% | 3.3% | 2.6% |
| 12 months to Aug 2019 | 0.0% | 3.5% | 10.1% | 3.0% | 5.7% |
| 12 months to Aug 2020 | 0.0% | 3.2% | 7.2% | 3.1% | 4.2% |
| 12 months to Aug 2021 | 0.0% | 2.9% | 26.1% | 3.3% | 10.9% |
| 12 months to Aug 2022 | 0.0% | 3.0% | 27.1% | 3.4% | 12.2% |
| 12 months to Aug 2023 | 0.0% | 2.9% | 27.0% | 3.3% | 9.9% |
| 12 months to Aug 2024 | 0.0% | 2.8% | 27.2% | 3.3% | 8.4% |
| 12 months to Aug 2025 | 0.4% | 7.5% | 40.4% | 8.5% | 13.3% |
| 12 months to Aug 2026 | 16.4% | 19.6% | 64.2% | 40.4% | 32.9% |
| Period | US imports | Duty paid | US exports |
|---|---|---|---|
| 12 months to Aug 2026 | $72.2M−22% | 32.9%+19.5 pts | $100.0M−18% |
| 12 months to Aug 2025 | $92.7M+6.3% | 13.3%+4.9 pts | $121.7M−29% |
| 12 months to Aug 2024 | $87.2M−14% | 8.4%−1.5 pts | $172.1M−29% |
| 12 months to Aug 2023 | $101.7M−1.6% | 9.9%−2.3 pts | $242.9M+36% |
| 12 months to Aug 2022HS 2022 revision | $103.3M+44% | 12.2%+1.3 pts | $178.9M+93% |
| 12 months to Aug 2021 | $71.7M−30% | 10.9%+6.8 pts | $92.9M−20% |
| 12 months to Aug 2020 | $102.2M−9.3% | 4.2%−1.6 pts | $115.7M−37% |
| 12 months to Aug 2019 | $112.6M+16% | 5.7%+3.2 pts | $183.9M+5.6% |
| 12 months to Aug 2018 | $96.9M+45% | 2.6%+0.5 pts | $174.1M+16% |
| 12 months to Aug 2017 | $66.7M | 2.1% | $149.6M |
Who supplies the US
August 2026. Small figures under each value are the change from August 2025. Landed cost by origin, below, adds freight and duty to the price.
| Country | US imports | Share | Average price | Duty paid | Last 13 months |
|---|---|---|---|---|---|
| Mexico | $2.0M | 29.3%+10.0 pts | $2.62/kg−23% | 22.3%+17.2 pts | |
| Poland | $1.5M | 21.8%−6.5 pts | $28.64/kg−40% | 19.6%+6.3 pts | |
| China | $1.3M | 18.5%+1.4 pts | $2.16/kg−29% | 52.8%−9.1 pts | |
| India | $932K | 13.6%−7.6 pts | $3.36/kg+21% | 26.6%−0.8 pts | |
| Germany | $510K | 7.4%+5.5 pts | $60.30/kg+108% | 28.6%+11.3 pts | |
| Canada | $376K | 5.5%−0.1 pts | $2.64/kg−20% | 11.5%−9.1 pts | |
| Sweden | $73K | 1.1%−0.5 pts | $83.78/kg−30% | 27.6%+14.3 pts | |
| Switzerland | $69K | 1.0%new | $14.50/kg | 28.1% | |
| Other countries (6) | $126K | 1.8%−2.5 pts | $17.82/kg+391% | 22.8%+4.6 pts | |
| All countries | $6.9M | 100.0% | $3.85/kg−14% | 28.4%+4.4 pts |
The 3 largest suppliers had 70.8% of US imports over the last 12 months.
Landed cost by origin
What importers paid to land this product at a US port from each main supplier, June–August 2026: the price, freight and insurance to the first US port, and duty, per unit. Suppliers with 3% or more of these imports, cheapest landed first. Small figures under landed cost are the change from the same months a year earlier.
- Price
- Freight and insurance
- Duty
| Country | Price | Freight and insurance | Duty | Landed cost | Make-up |
|---|---|---|---|---|---|
| Canada | $2.33/kg | $0.08/kg3.3% of price | $0.35/kg15.2% of price | $2.76/kg+1.6% | |
| Mexico | $2.62/kg | $0.02/kg0.9% of price | $0.58/kg22.1% of price | $3.23/kg+4.8% | |
| China | $2.37/kg | $0.17/kg7.3% of price | $1.26/kg53.1% of price | $3.80/kg−8.9% | |
| India | $3.24/kg | $0.19/kg5.9% of price | $0.86/kg26.5% of price | $4.28/kg+17% | |
| Poland | $32.26/kg | $0.31/kg0.9% of price | $7.33/kg22.7% of price | $39.89/kg−4.3% | |
| Germany | $50.56/kg | $1.04/kg2.1% of price | $14.26/kg28.2% of price | $65.86/kg+59% | |
| All countries | $3.85/kg | $0.14/kg3.6% of price | $1.22/kg31.6% of price | $5.21/kg+8.3% |
Landed at a US port, Canada was cheapest, at $2.76/kg: 14.4% below Mexico.
Landed cost from Germany rose 59% on a year earlier, to $65.86/kg, mostly on price: $35.67/kg then, $50.56/kg now.
How the market is shifting
Poland gained the most share: 23.9% of US imports over the last 12 months, up from 15.7% in the 12 months before. Czech Republic lost the most: 0.5%, down from 5.0%. The charts show September 2024 to August 2026 for the 4 largest suppliers over the last 12 months. Dotted lines mark lasting changes in duty paid, labelled with the supplier, or "Duty" when several moved; the tariff timeline lists each one with its notices.
- Mexico
- Poland
- China
- India
- All countries
Show the numbers
| Month | Mexico | Poland | China | India |
|---|---|---|---|---|
| September 2024 | 29.3% | 12.9% | 31.8% | 11.6% |
| October 2024 | 32.7% | 17.9% | 22.2% | 14.3% |
| November 2024 | 29.4% | 18.0% | 24.5% | 11.6% |
| December 2024 | 15.8% | 10.7% | 29.5% | 12.9% |
| January 2025 | 21.2% | 11.8% | 35.7% | 15.0% |
| February 2025 | 29.0% | 10.9% | 27.1% | 14.6% |
| March 2025 | 34.7% | 9.7% | 19.5% | 12.1% |
| April 2025 | 23.8% | 19.2% | 19.7% | 13.6% |
| May 2025 | 33.5% | 11.7% | 21.3% | 12.5% |
| June 2025 | 29.4% | 18.4% | 12.7% | 17.8% |
| July 2025 | 27.0% | 20.3% | 18.4% | 19.8% |
| August 2025 | 19.3% | 28.3% | 17.1% | 21.2% |
| September 2025 | 29.8% | 18.0% | 13.8% | 19.8% |
| October 2025 | 35.7% | 21.1% | 14.3% | 14.3% |
| November 2025 | 33.0% | 25.9% | 13.7% | 16.5% |
| December 2025 | 12.7% | 26.9% | 26.5% | 19.8% |
| January 2026 | 17.8% | 30.7% | 17.5% | 18.2% |
| February 2026 | 36.6% | 24.3% | 19.1% | 9.1% |
| March 2026 | 23.7% | 35.8% | 14.7% | 16.1% |
| April 2026 | 26.4% | 32.2% | 17.5% | 7.8% |
| May 2026 | 26.6% | 24.3% | 22.8% | 7.1% |
| June 2026 | 25.0% | 16.8% | 27.6% | 8.2% |
| July 2026 | 25.1% | 16.8% | 27.8% | 10.9% |
| August 2026 | 29.3% | 21.8% | 18.5% | 13.6% |
Show the numbers
| Month | Mexico | Poland | China | India | All countries |
|---|---|---|---|---|---|
| September 2024 | 0.0% | 3.0% | 28.1% | 3.2% | 10.1% |
| October 2024 | 0.0% | 2.7% | 28.4% | 3.4% | 8.3% |
| November 2024 | 0.0% | 2.6% | 28.5% | 3.3% | 8.2% |
| December 2024 | 0.2% | 2.9% | 27.8% | 3.3% | 9.8% |
| January 2025 | 0.1% | 2.8% | 27.9% | 3.3% | 11.0% |
| February 2025 | 0.1% | 2.6% | 29.8% | 3.4% | 9.5% |
| March 2025 | 0.7% | 2.6% | 42.8% | 3.4% | 10.8% |
| April 2025 | 0.0% | 10.8% | 71.1% | 4.2% | 17.8% |
| May 2025 | 0.3% | 12.8% | 72.0% | 11.6% | 21.0% |
| June 2025 | 0.0% | 12.8% | 56.7% | 13.4% | 14.8% |
| July 2025 | 0.0% | 12.7% | 53.1% | 13.3% | 16.9% |
| August 2025 | 5.1% | 13.2% | 61.9% | 27.5% | 24.0% |
| September 2025 | 14.1% | 20.3% | 81.8% | 43.0% | 36.9% |
| October 2025 | 10.1% | 17.7% | 82.1% | 51.9% | 36.1% |
| November 2025 | 10.6% | 17.6% | 79.1% | 53.5% | 33.3% |
| December 2025 | 10.3% | 16.3% | 76.4% | 53.5% | 41.2% |
| January 2026 | 12.3% | 16.5% | 79.6% | 52.8% | 36.2% |
| February 2026 | 9.5% | 15.6% | 73.3% | 47.8% | 30.8% |
| March 2026 | 10.5% | 13.2% | 64.4% | 25.4% | 24.1% |
| April 2026 | 23.2% | 22.7% | 55.1% | 30.0% | 29.7% |
| May 2026 | 22.2% | 27.5% | 50.8% | 25.4% | 31.0% |
| June 2026 | 21.1% | 27.1% | 53.3% | 25.9% | 33.4% |
| July 2026 | 23.3% | 22.5% | 53.2% | 26.6% | 33.2% |
| August 2026 | 22.3% | 19.6% | 52.8% | 26.6% | 28.4% |
Tariff actions touching this product
When the duty paid on this product changed and stayed changed, for its main suppliers and all countries, newest first, with the Federal Register notices that named the product in the 3 months before. Rates are medians of the 4 months either side, less any usual seasonal swing. A change shows what happened to duty paid, not why; read each notice for what it did.
- February–April 2026 · Duty paid: Poland 15.9% → 24.9%, China 77.6% → 54.3%, Mexico 10.4% → 22.7%, India 53.2% → 25.7%, all countries 36.1% → 30.7%.
- August–September 2025 · Duty paid: China 59.4% → 80.4%, Mexico 0.0% → 10.3%, India 13.3% → 52.7%, all countries 19.4% → 36.4%.
- March–May 2025 · Duty paid: Poland 2.7% → 12.8%, China 28.2% → 64.0%, India 3.4% → 12.5%, all countries 9.0% → 16.8%.
- April 2022 · Duty paid: all countries 14.2% → 8.7%.
- Freight Rail Coupler Systems and Certain Components Thereof From the People's Republic of China: Preliminary Affirmative Determination of Sales at Less-Than-Fair Value
- Freight Rail Coupler Systems and Components From China; Scheduling of the Final Phase of Countervailing Duty and Anti-Dumping Duty Investigations
- Freight Rail Coupler Systems and Certain Components Thereof: Preliminary Affirmative Countervailing Duty Determination
- January–February 2021 · Duty paid: China 21.0% → 28.1%, all countries 4.9% → 12.3%.
- September 2020 · Duty paid: China 7.4% → 18.6%.
- September 2018 · Duty paid: China 3.7% → 12.4%.
Federal Register notices from the last 12 months that list this product's tariff codes. A notice can add a duty, exclude products from one or only mention them, so read each for what it changes. These are the 5 newest of 7. Search the Federal Register for 8607.30
- Certain Freight Rail Couplers and Parts Thereof From India: Final Affirmative Countervailing Duty Determination
- Certain Freight Rail Couplers and Parts Thereof From India: Final Affirmative Determination of Sales at Less Than Fair Value
- Certain Freight Rail Couplers and Parts Thereof From the Czech Republic: Final Affirmative Determination of Sales at Less Than Fair Value
- Freight Rail Couplers and Parts Thereof From Czech Republic and India; Scheduling of the Final Phase of Countervailing Duty and Antidumping Duty Investigations
- Certain Freight Rail Couplers and Parts Thereof From India: Preliminary Affirmative Determination of Sales at Less Than Fair Value, Postponement of Final Determination, and Extension of Provisional Measures
Where it enters the US
Main ports of entry over the 12 months to August 2026: US imports and share.
Where US exports go
US exports were $9.1M in August 2026, up 0.5% from August 2025, and $100.0M over the last 12 months, down 18% on the 12 months before. Fastest-growing market with 3% or more of US exports: Canada, up 22%.
| Market | Last 12 months | Share | vs 12 months before |
|---|---|---|---|
| Canada | $40.8M | 40.8% | +22% |
| Mexico | $37.7M | 37.7% | −29% |
| Australia | $4.2M | 4.2% | −65% |
| India | $3.5M | 3.5% | −40% |
| Korea, South | $2.9M | 2.9% | +41047% |
| Czech Republic | $2.3M | 2.3% | −51% |
| Germany | $2.1M | 2.1% | +55% |
| Brazil | $1.0M | 1.0% | −50% |
| Other countries (38) | $5.5M | 5.5% | −35% |
| All countries | $100.0M | 100.0% | −18% |
Markets abroad
Each country's own import figures for this product, from UN Comtrade: the 8 biggest importers outside the US in the latest year each has reported, what they bought from the US, and the change from the year before. Values usually include freight and insurance to the importer's border, so they run a little above US export figures. Countries report a year or more late; 113 have reported 2025 so far. Where a country's figure for imports from the US is under half or over double what the US recorded exporting there that year, the US figure is shown under it.
| Market | Imports | vs year before | From the US | US share |
|---|---|---|---|---|
| Mexico | $81.9Min 2025 | −47% | $51.8M | 63.3% |
| China | $53.0Min 2025 | +11% | $2.8MUS records $1.1M | 5.3% |
| Poland | $50.9Min 2025 | −3.8% | $90K | 0.2% |
| Germany | $48.8Min 2025 | −4.1% | $834K | 1.7% |
| Canada | $44.9Min 2025 | −5.9% | $21.3M | 47.5% |
| Australia | $38.4Min 2025 | +13% | $11.8M | 30.8% |
| Switzerland | $27.7Min 2025 | +20% | $359K | 1.3% |
| France | $24.2Min 2025 | +33% | $54K | 0.2% |
The biggest market outside the US is Mexico, which imported $81.9M of this product in 2025, 63.3% of that from the US.
The US supplies 63.3% of imports into Mexico and 47.5% into Canada, but under 10% into Poland, Germany and Switzerland.
Of these, imports into France grew fastest: up 33% from 2024 to 2025.
Related products
Other products under heading 8607: parts of railway or tramway locomotives or rolling stock. US trade over the 12 months to August 2026.
| Product | US imports | US exports |
|---|---|---|
| Truck axles and wheels and parts thereof, including parts of truck assemblies, for railway or tramway vehiclesHS 8607.19 | $296.7M | $474.2M |
| Parts of railway or tramway vehicles, other than locomotives, not elsewhere specifiedHS 8607.99 | $340.5M | $194.2M |
| Parts of railway or tramway locomotives, not elsewhere specifiedHS 8607.91 | $140.1M | $151.6M |
| Airbrakes and parts thereof, for railway or tramway vehiclesHS 8607.21 | $53.3M | $106.1M |
| Truck assemblies for self-propelled railway or tramway locomotives or rolling stockHS 8607.11 | $48.8M | $5.1M |
| Brakes (except airbrakes) and parts thereof, for railway or tramway vehiclesHS 8607.29 | $21.2M | $32.6M |
| Truck assemblies, not elsewhere specified, for railway or tramway rolling stockHS 8607.12 | $7.8M | $5.4M |
About these figures
- Source: US Census Bureau international trade data, not seasonally adjusted, in US dollars. Retrieved November 3, 2026.
- US imports are general imports at customs value, which excludes freight and insurance. Exports are at free-alongside-ship value.
- Average price is customs value divided by quantity (kilograms), across all of the product's 10-digit lines.
- Duty paid is the duty Census calculates on each country's imports for consumption, as a share of their value. It moves with tariff changes, exemptions and the mix of goods within the product.
- Landed cost adds Census's import charges (freight, insurance and other costs of bringing the goods to the first US port) and calculated duty to the customs value, per unit, across the product's 10-digit lines. It leaves out antidumping and countervailing duties, customs fees and transport inland. Prices are averages across the goods within the code, so a lower one can mean cheaper goods, not the same goods for less.
- Markets abroad are each country's imports as it reports them to UN Comtrade, in US dollars, usually including freight and insurance. Countries report a year or more late and in their own edition of the HS codes, so one still on an older edition is missing for codes that changed in 2022.
- Tariff notices are from the Federal Register, matched to this product by the HTS numbers in their text.
- Census revises recent months, so figures can change slightly. These are estimates for research and planning, not customs or legal advice.