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Buffer Stem and Guide

Buffer stems and guides direct compressive forces in hydraulic or friction buffers on 8606 rolling stock. Precision-machined for minimal wear. HTS 8607.30.10 for such buffer parts.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.6%+37.5%41.1%
🇲🇽Mexico3.6%+10.0%13.6%
🇨🇦Canada3.6%+10.0%13.6%
🇩🇪GermanyFree+10.0%10%
🇯🇵JapanFree+12.5%12.5%

More Specific Codes

This product may fall under a more specific subheading:

8607.30.10.10Assembled freight rail couplers
→
8607.30.10.50Freight rail coupler parts
→
8607.30.10.90Other
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Alternative Classifications

This product could be classified differently depending on its characteristics or intended use.

7318.29.00Higher: 77.8% vs 41.1%

If generic steel pins

Non-specific shafts/pins to Chapter 73.

8608.00.00.00Higher: 41.3% vs 41.1%

If platform buffers

Station equipment buffers under track heading.

8483.90.80Higher: 52.8% vs 41.1%

If transmission shafts

If considered torque parts, to Chapter 84.

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.

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Import Tips & Compliance

• Hardness and tolerance specs needed for railway durability proof

• Separate from general pins/shafts via rail certification

• Assembly instructions prevent parts classification shift

Related Products under HTS 8607.30.10

Buffer Friction Shoe

Buffer friction shoes provide damping in draft gear systems for 8605 locomotives via metal-to-metal contact. Heat-treated for wear resistance. Under HTS 8607.30.10.

Uncoupling Lever Assembly

Uncoupling lever assemblies allow remote knuckle opening on 8606 freight cars without ground contact. Includes lever, rod, and pin. HTS 8607.30.10 coupling part.

Coupler Adapter for Transition Cars

Coupler adapters convert between coupler types on transition cars mixing 8605 loco and 8606 stock. Shank-style for secure fit. HTS 8607.30.10.

Buffer Plunger Housing

Buffer plunger housings contain the moving plunger in constant-contact side buffers on hopper cars (8606). Cast steel construction. Classed HTS 8607.30.10.

Knuckle Pin Retainer

Knuckle pin retainers secure the pivot pin in automatic couplers on 8605/8606 vehicles, preventing uncoupling. Made of high-strength steel. Classed under HTS 8607.30.10 coupling parts.

Coupler Height Adjuster Shim

Coupler height adjuster shims pack the coupler carrier to maintain AAR standard heights on freight cars (8606). Precision-ground steel plates. HTS 8607.30.10 part.