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GMC Sierra Allison 1000 Gearbox

Heavy-duty Allison 1000 6-speed automatic gearbox for GMC Sierra 2500/3500, HTS 8708.40.50.00 for other vehicles. Ideal for high-torque diesel applications in work trucks.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.5%+35.0%37.5%
🇲🇽Mexico2.5%+10.0%12.5%
🇨🇦Canada2.5%+10.0%12.5%
🇩🇪Germany2.5%+10.0%12.5%
🇯🇵Japan2.5%+10.0%12.5%

Alternative Classifications

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

8408.20Lower: 12.5% vs 37.5%

If as compression-ignition engine part

Integral diesel engine-marine parts may classify under engines.

8708Same rate: 37.5%

If for non-driving axles only

Retarders and auxiliary gearboxes for specific axle types separate.

8412.29.40.00Lower: 35% vs 37.5%

If hydraulic pump integrated

Fluid power gearboxes shift to Chapter 84.

Not sure which classification is right?

Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.

Import Tips & Compliance

Specify GVWR in docs to confirm 'other vehicles' vs heavy truck exclusions

Include rebuild certifications if refurbished to avoid 'used parts' duties

Comply with Buy America if for US fleet use