Why does the rate differ by country for the same HTS code?

The Column 1 rate is the same for every origin with normal trade relations. Trade-remedy duties under Sections 232, 301 and 338 are imposed by origin, by product, or by both, so two shipments of the same article from different countries can carry very different totals.

Is this the rate I will actually pay?

It is the rate that applies to this classification and origin on the date shown. The duty owed on a specific entry also depends on the 10-digit statistical suffix, declared content where a duty is content-based, preference eligibility, and any AD/CVD order in scope.

HTS 8511

Heading 8511 covers electrical ignition or starting equipment of a kind used for spark-ignition or compression-ignition internal combustion engines (for example, ignition magnetos, magneto-dynamos, ignition coils, spark plugs and glow plugs, starter motors); generators (for example, dynamos, alternators) and cut-outs of a kind used in conjunction with such engines; parts thereof. Duty is assessed at the 10-digit statistical line; the figures here are resolved for 8511.10.00.00, the first line under this heading. Its Column 1 rate is 2.5%; other lines under 8511 carry different Column 1 rates. On top of that, the ad valorem total depends on origin: China carries 65.00% and Italy carries 35.00%.

Chapter 85 · Verified 2026-08-31
HTS 2026HTSRev17

13 statistical lines under this heading · 3 distinct Column 1 rates · highest ad valorem total 65.00% from China · lowest 35.00% from Italy

Origin	Ad valorem layers	Layers	Reported under
China CHN	65.00%	mfn + s232 + s301 + s301	9903.88.03 9903.05.31 9903.94.05
Vietnam VNM	40.00%	mfn + s232 + s301	9903.05.84 9903.94.05
Thailand THA	40.00%	mfn + s232 + s301	9903.05.77 9903.94.05
Brazil BRA	40.00%	mfn + s232 + s301	9903.05.27 9903.94.05
Mexico MEX	37.50%	mfn + s232 + s301	9903.05.55 9903.94.05
Canada CAN	37.50%	mfn + s232 + s301	9903.05.29 9903.94.05
India IND	37.50%	mfn + s232 + s301	9903.05.44 9903.94.05
Japan JPN	37.50%	s232 + s301	9903.05.49 9903.94.05
South Korea KOR	37.50%	s232 + s301	9903.05.71 9903.94.05
United Kingdom GBR	37.50%	mfn + s232 + s301	9903.05.81 9903.94.05
Germany DEU	35.00%	s232 + s301	9903.05.39 9903.94.05
Italy ITA	35.00%	s232 + s301	9903.05.39 9903.94.05

Table 1Rate by country of origin for 8511.10.00.00, resolved 2026-08-31. The first statistical line under 8511; other lines may carry different Column 1 rates.

Code	Description	Column 1	Special	Units
8511.10.00.00	Spark plugs	2.5%	Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	hundreds
8511.20.00.00	Ignition magnetos; magneto-dynamos; magnetic flywheels	2.5%	Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	No.
8511.30.00.40	Distributors	inherited	—	No.
8511.30.00.80	Ignition coils	inherited	—	No.
8511.40.00.00	Starter motors and dual purpose starter-generators	2.5%	Free (A*,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	No.
8511.50.00.00	Other generators	2.5%	Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	No.
8511.80.20.00	Designed for use on 6, 12 or 24 V systems	2.5%	Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	No.
8511.80.40.00	Other	Free	—	No.
8511.80.60.00	Other	2.5%	Free (A,AU,B,BH,C,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
8511.90.20.00	Designed for use on 6, 12 or 24 V systems	3.1%	Free (A,AU,B,BH,CL,CO,D,E,IL,JO,KR,MA,OM,P,PA,PE,S,SG)	kg
8511.90.40.00	Other	Free	—	kg
8511.90.60.20	Distributor contact (breaker point) sets	inherited	—	No.
8511.90.60.40	Other	inherited	—	kg

Table 2Statistical suffixes under 8511. Duty is assessed at the 10-digit level; the Column 1 rate is stated at the subheading and inherited below it.

Programme	Rate as published	Contribution	Reported under	In force from
Column 1 General (MFN)	2.5%	2.50%	—	not established
Source: USITC, Harmonized Tariff Schedule of the United States, 2026 HTS Revision 17, published 2026-08-01. Verified 2026-08-31.
Section 232	The duty provided in the applicable subheading + 25%	25.00%	9903.94.05	2025-04-03
This provision is listed both as a part of passenger vehicles and light trucks (U.S. note 33(g), heading 9903.94.05) and as a medium- and heavy-duty vehicle part (U.S. note 38(i), heading 9903.74.08). Which heading is reported depends on the vehicle the part is for. Both carry the same 25 percent rate, so the duty is the same either way. Source: FEDERAL REGISTER, Proclamation 10908, adjusting imports of automobiles and automobile parts (FR Doc. 2025-05930), published 2025-04-03. Verified 2026-08-31.
Section 301	The duty provided in the applicable subheading + 25%	25.00%	9903.88.03	2018-09-24
Status unconfirmed. The second statutory four-year review of this action is running. The continuation-request deadlines for the underlying 2018 actions closed on 2026-07-05 and 2026-08-22 and no continuation notice has been published. There is no evidence of termination either, and the duty is almost certainly still collectible; what we cannot do is cite a document saying so. Source: USTR, Notice of Modification of Section 301 Action: China's Acts, Policies and Practices Related to Technology Transfer (List 3) (83 FR 47974), published 2018-09-21. Verified 2026-08-31.
Section 301	The duty provided in the applicable subheading + 12.5%	12.50%	9903.05.31	2026-07-24
Source: USTR, Notice of Actions in Section 301 Investigations of Various Economies (FR Doc. 2026-15181), published 2026-07-28. Verified 2026-08-31.

Table 3Duty stack for 8511.10.00.00 from China, resolved 2026-08-31.

Common questions

What is the duty rate for HTS 8511?: Heading 8511 covers electrical ignition or starting equipment of a kind used for spark-ignition or compression-ignition internal combustion engines (for example, ignition magnetos, magneto-dynamos, ignition coils, spark plugs and glow plugs, starter motors); generators (for example, dynamos, alternators) and cut-outs of a kind used in conjunction with such engines; parts thereof. Duty is assessed at the 10-digit statistical line; the figures here are resolved for 8511.10.00.00, the first line under this heading. Its Column 1 rate is 2.5%; other lines under 8511 carry different Column 1 rates. On top of that, the ad valorem total depends on origin: China carries 65.00% and Italy carries 35.00%.
Why does the rate differ by country for the same HTS code?: The Column 1 rate is the same for every origin with normal trade relations. Trade-remedy duties under Sections 232, 301 and 338 are imposed by origin, by product, or by both, so two shipments of the same article from different countries can carry very different totals.
Is this the rate I will actually pay?: It is the rate that applies to this classification and origin on the date shown. The duty owed on a specific entry also depends on the 10-digit statistical suffix, declared content where a duty is content-based, preference eligibility, and any AD/CVD order in scope.