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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.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China3.6%+35.0%38.6%
🇲🇽Mexico3.6%+10.0%13.6%
🇨🇦Canada3.6%+10.0%13.6%
🇩🇪Germany3.6%+10.0%13.6%
🇯🇵Japan3.6%+10.0%13.6%

More Specific Codes

This product may fall under a more specific subheading:

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

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

7302.90.10Lower: 35% vs 38.6%

If track material

If rail track construction related.

8608.00.00.00Higher: 38.8% vs 38.6%

If loading buffers

Station loading equipment.

8479.89.65Lower: 20.3% vs 38.6%

If industrial housings

Generic machine castings.

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Import Tips & Compliance

• Side buffer specific vs center to justify use

• Hopper car model references

• Machining tolerance proofs

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.

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.

SA3 Automatic Coupler

The SA3 automatic coupler is a standard coupling device used on freight locomotives and rolling stock classified under headings 8605 and 8606. It enables quick connection and disconnection between rail cars, featuring knuckle mechanisms for secure linking. Classified under HTS 8607.30.10 as a hook and coupling device specifically for these vehicles.