Stanadyne DB4 Inline Fuel Injection Pump

Inline jerk pump design for older or industrial stationary diesel generators, metering fuel per cylinder. Fits HTS 8413.30.1000 as a classic fuel-injection pump for compression-ignition engines.

Import Duty Rates by Country of Origin

Origin CountryMFN RateCh.99 SurchargesTotal Effective Rate
🇨🇳China2.5%+50.0%52.5%
🇲🇽Mexico2.5%+25.0%27.5%
🇨🇦Canada2.5%+25.0%27.5%
🇩🇪GermanyFree+15.0%15%
🇯🇵JapanFree+15.0%15%

Alternative Classifications

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

8413.30Same rate: 52.5%

If for spark-ignition or dual-fuel engines

Non-compression-ignition fuel pumps classify under other 8413.30 provisions.

8502.31.00.00Lower: 37.5% vs 52.5%

If imported as part of a complete diesel generating set.

Linear acting generating set parts may classify with the set under 8502.

8413.91.90Lower: 35% vs 52.5%

If aftermarket repair components only

Loose parts not forming a complete pump go to parts provisions.

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

Include service manuals showing diesel-specific calibration to distinguish from lubricating pumps

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