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HSChapter 86
U.S. imports of railway & tramway coupling devices, buffers, and parts (HS 860730) totaled $5.4M in April 2026, traded with 19 countries.
Importers of Railway & Tramway Coupling Devices, Buffers, and Parts paid $1.4M in duties in April 2026 — an effective duty rate of 31% on $4.5M in dutiable value, based on actual customs collections rather than the published tariff schedule.
Last updated: April 2026 dataHooks, knuckle couplers, draft gear, and buffer assemblies that physically connect railway cars and absorb longitudinal shock are classified here, with the US schedule offering notable granularity: assembled freight rail couplers (8607301010), freight rail coupler parts (8607301050), and broader coupling/buffer provisions for passenger and freight stock (8607301090) and locomotives (8607305000). Mexico and Poland are the top two US import sources, with China and India also significant. Freight rail couplers in the US market must conform to AAR interchange standards, so specification compliance is as important as tariff classification when sourcing internationally.
AI-written summary of the official U.S. Census Bureau trade figures on this page — verify before relying on it.
The US freight rail network uses a standardized AAR knuckle coupler system, and the volume of coupler trade is large enough to warrant statistical tracking at the 10-digit level. 8607301010 covers complete assembled couplers, while 8607301050 covers individual parts such as knuckles, locks, and yokes — allowing CBP and industry analysts to monitor both finished assemblies and component flows separately.
Couplers and parts sourced from China may be subject to Section 301 tariffs. Importers should also verify whether any antidumping or countervailing duty orders apply to specific coupler components from particular origins, as the rail supply chain draws from multiple countries including India and Poland. A licensed customs broker can confirm current order scope.
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Monthly import values over time
HS10 import codes under this HS6 parent. Source: U.S. Harmonized Tariff Schedule.
| Code | Description | Import Value | Effective Tariff % | Duty Collected |
|---|---|---|---|---|
| 8607305000 | HOOKS, BUFFERS & PARTS, NESOI (INC LOCOMOTIVES) | $2.0M | 26.93% | $533K |
| 8607301050 | FREIGHT RAIL COUPLER PARTS | $1.9M | 33.22% | $530K |
| 8607301090 | HOOKS & OTHER COUPLINGS, BUFFERS, FOR 8605 OR 8606 | $755K | 41.79% | $252K |
| 8607301010 | ASSEMBLED FREIGHT RAIL COUPLERS | $709K | 21.36% | $67K |
HOOKS, BUFFERS & PARTS, NESOI (INC LOCOMOTIVES)
FREIGHT RAIL COUPLER PARTS
HOOKS & OTHER COUPLINGS, BUFFERS, FOR 8605 OR 8606
ASSEMBLED FREIGHT RAIL COUPLERS
HS10 export codes under this HS6 parent. Source: U.S. Schedule B export classification.
| Code | Description | Export Value |
|---|---|---|
| 8607305000 | HOOKS, BUFFERS & PARTS, NESOI (INC LOCOMOTIVES) | $5.0M |
| 8607301000 | HOOKS & OTHER COUPLINGS, BUFFERS, FOR 8605 OR 8606 | $4.7M |
HOOKS, BUFFERS & PARTS, NESOI (INC LOCOMOTIVES)
913.4K kg
HOOKS & OTHER COUPLINGS, BUFFERS, FOR 8605 OR 8606
882.8K kg
PTS OF RAILWAY/TRAMWAY EXC LOCOMO/ROLLG STCK NESOI
HS 860799
TRUCK AXLES AND WHEELS & PTS, ETC FOR RAIL VEHICLS
HS 860719
CONTAINERS FOR ONE OR MORE MODES OF TRANSPORT
HS 860900
PARTS, NESOI, OF LOCOMOTIVES
HS 860791
AIRBRAKES AND PARTS THEREOF
HS 860721
TRUCK ASSEMBLIES FOR SELF-PROPELLED RAILWAY VEH
HS 860711
| State | Imports | Exports | Balance |
|---|---|---|---|
| Pennsylvania | $1.3M | $2.6M | +$1.3M |
| Texas | $845K | $2.2M | +$1.4M |
| Illinois | $950K | $2.0M | +$1.1M |
| Port | Imports | Exports | Balance |
|---|---|---|---|
| LAREDO, TX | $1.5M | $2.0M | +$453K |
| DETROIT, MI | -- | $1.7M | +$1.7M |
| BUFFALO-NIAGARA FALLS, NY | $38K | $1.5M | +$1.5M |