Spark Ignition Piston Engine
CN β US| HS Code | Tariff Rate | Origin | Destination | Doc |
|---|---|---|---|---|
| 8409919990 | 37.5% | CN | US | Official Doc |
| 8409915085 | 37.5% | CN | US | Official Doc |
| 8407909080 | 35.0% | CN | US | Official Doc |
| 8407909060 | 35.0% | CN | US | Official Doc |
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AI Analysis
π Spark-Ignition Piston Engines & Parts: The Ultimate Clearance Guide
π HS Code Reference & Customs Clearance Strategy | 2026 Latest Tariff Analysis | Professional-Level Compliance
π I. Product Definition & Classification: Do You Truly Understand "Spark-Ignition Engines"?
Spark-ignition internal combustion piston engines are the heart of many light vehicles, small machinery, and portable power systems. In international trade, they are strictly categorized based on output power (kW) and intended application (vehicles vs. general use).
Two Main Categories:
1. The Engine Itself (Heading 8407): The complete power unit, classified by horsepower/wattage.
2. The Parts (Heading 8409): Components designed solely or principally for use with these engines.
β οΈ Key Distinction:
- If it is a complete engine with crankcase, cylinder, pistons, and ignition system β It is 8407.
- If it is a component (e.g., valve, piston, gasket) that only fits an 8407/8408 engine β It is 8409.
- Critical Rule: Parts for spark-ignition engines fall under 8409.91. Do not confuse with compression-ignition (diesel) engines (8409.99).
π¦ II. HS Code Classification Details (2026 Latest Tariff Authority Comparison)
| HS Code | Product Description | Applicable Scenario | Power Rating / Specific Use |
|---|---|---|---|
8407.90.90.80 |
Spark-ignition reciprocating/rotary internal combustion piston engines: Other: Other: Exceeding 18.65 kW | Heavy-duty small engines, large boats, industrial generators, heavy construction equipment | > 18.65 kW |
8407.90.90.60 |
Spark-ignition reciprocating/rotary internal combustion piston engines: Other: Other: 4,476 W or greater but not exceeding 18.65 kW | Light trucks, SUVs, motorcycles, small tractors, lawn mowers, medium-sized generators | 4,476 W β€ P β€ 18,650 W |
8409.91.99.90 |
Parts suitable for use solely/principally with engines of heading 8407 or 8408: Other: Suitable for spark-ignition: Other: Other | Generic spark-ignition engine parts (e.g., carburetors, spark plugs, valves) NOT for specific vehicle types listed below | General Parts |
8409.91.50.85 |
Parts suitable for use solely/principally with engines of heading 8407 or 8408: Other: Suitable for spark-ignition: Other: To be installed in vehicles of subheading 8701.21... or heading 8702... or 8703 or 8704 | Engine parts specifically designed for trucks, buses, vans, and cars (e.g., cylinder heads, pistons for automotive use) | Automotive/Truck Parts |
π Key Reminder:
- All parts under 8409.91 are for Spark-Ignition engines only.
- If a part is used in a diesel (compression-ignition) engine, it belongs in 8409.99.
- Power Threshold: The cutoff between the two engine HS codes is 18.65 kW (approx. 25 HP). Below this, itβs usually for smaller vehicles/machinery; above, itβs for heavier applications.
π° III. 2026 Latest Tariff Rate Breakdown (Including Additional Duties & Policy Add-ons)
β Applicable Country: United States (US)
β Country of Origin: China (CN)
β Effective Date: From November 10, 2025 (and subsequent imports)
π― 1. 8407.90.90.80 & 8407.90.90.60 β Spark-Ignition Engines
| Item | Detail |
|---|---|
| Base Tariff Rate | 0.0% (Ad Valorem) |
| USITC Additional Duty (Section 301) | +25.0% (List 3 / General Category) |
| Total Tariff Rate | 25.0% |
| Tax Calculation | CIF Value Γ 25% |
| De Minimis Exemption? | β NO (Deny De Minimis) |
| Legal Basis Path | USITC:8407.90.90.80 / 8407.90.90.60 β FOOTNOTE:301 β 25% Additional Duty |
π Explanation:
- Although the base MFN tariff is 0%, the 25% Section 301 additional duty applies to all Chinese-made spark-ignition engines.
- There is no IEEPA 10% surcharge listed in the provided data for these specific engine codes (unlike some consumer electronics), but the 25% is substantial.
- Total Cost Impact: 25% of the product value is added solely for customs duty.
π― 2. 8409.91.99.90 & 8409.91.50.85 β Parts for Spark-Ignition Engines
| Item | Detail |
|---|---|
| Base Tariff Rate | 2.5% (Ad Valorem) |
| USITC Additional Duty (Section 301) | +25.0% |
| Total Tariff Rate | 27.5% |
| Tax Calculation | CIF Value Γ 27.5% |
| De Minimis Exemption? | β NO (Deny De Minimis) |
| Legal Basis Path | USITC:8409.91.99.90 / 8409.91.50.85 β FOOTNOTE:301 β 25% Additional Duty |
π Explanation:
- These parts incur a higher effective rate (27.5%) than the engines themselves because of the 2.5% base duty.
- Critical Distinction:
-8409.91.50.85is for automotive/truck parts (vehicles of 8701-8704).
-8409.91.99.90is for other parts (e.g., for marine, industrial, or small power equipment).
- Both are subject to the same 25% additional duty.
π οΈ IV. Customs Clearance Practical Advice (Avoiding Pitfalls)
β 1. Required Documentation Checklist
| Document | Mandatory? | Description |
|---|---|---|
| β Product Specifications | βοΈ | Must clearly state engine type (spark-ignition), power output (kW/W), and application (vehicle vs. general). |
| β Engine Number / Serial Number | βοΈ | For complete engines (8407), the serial number must match the documentation. |
| β Part Identification | βοΈ | For parts (8409), provide a detailed list showing which engine model they fit. |
| β Commercial Invoice | βοΈ | Must explicitly state "Spark-Ignition Engine" or "Parts for Spark-Ignition Engine". Avoid vague terms like "Motor Parts". |
| β Bill of Lading / Air Waybill | βοΈ | Ensure commodity description matches HS Code. |
| β Certificate of Origin | βοΈ | To prove origin (China) and apply correct additional duties. |
β 2. Declaration Tips (Key Mnemonic)
π₯ "Engine by kW, Parts by Car, Spark Not Diesel, 25% Extra for CA!"
| Scenario | Correct Declaration | Wrong Declaration |
|---|---|---|
| Complete Engine (>18.65kW) | 8407.90.90.80 - Spark-Ignition Engine |
"Gasoline Engine" (Too vague) |
| Complete Engine (<18.65kW) | 8407.90.90.60 - Spark-Ignition Engine |
"Small Motor" (Wrong HS) |
| Car Engine Part | 8409.91.50.85 - Part for Auto Engine |
"Engine Part" (Misclassified) |
| Boat/Generator Part | 8409.91.99.90 - Other Part |
"Engine Part" (May be audited) |
| Diesel Engine Part | 8409.99.xxx.xxx |
8409.91.xxx.xxx (Wrong Fuel Type) |
β 3. Special Handling
| Situation | Handling Advice |
|---|---|
| Mixed Shipment (Engine + Parts) | Declare separately! Do not bundle into one line item. |
| Engine Kits (Without Crankcase) | If missing major components (crankcase, cylinder block), it may be classified as a Part (8409) instead of an Engine (8407). Verify with customs. |
| Rebuilt/Used Engines | Subject to additional EPA/CARB regulations if imported into the US. Ensure compliance with environmental laws. |
| OEM vs. Aftermarket Parts | Both fall under 8409.91, but aftermarket parts should be clearly labeled to avoid IP issues. |
π V. Global Market Clearance Comparison (2026 Latest)
| Country/Region | Recommended HS Code | Tariff (China Origin) | Certification Requirements | Notes |
|---|---|---|---|---|
| πΊπΈ USA | 8407.90.90.80 / 8409.91.50.85 |
25% (Engines) 27.5% (Parts) |
EPA / CARB (for emission compliance) | Highest duty burden due to Section 301. |
| π¨π³ China | 8407.90.90.80 / 8409.91.50.85 |
0-5% (varies) | CCC (if applicable) | Low base duty, but check for local environmental standards. |
| πͺπΊ EU | 8407.90.90 / 8409.91 |
2.5% - 3.7% | CE / Stage V Emissions | No additional trade war tariffs, but strict emission norms. |
| π―π΅ Japan | 8407.90.90 / 8409.91 |
0% - 5% | JIS Standards | Preferential rates under JETPA for some categories. |
| π²π½ Mexico | 8407.90.90 / 8409.91 |
0% - 5% | NOM Standards | Beneficial under USMCA if originating in North America. |
π Conclusion:
- USA imposes a heavy 25-27.5% total duty on Chinese spark-ignition engines and parts.
- EU and Japan are more favorable, but emission standards (EPA/Stage V) are the main barrier.
- Always verify EPA/CARB compliance for engines entering the US market, regardless of HS code.
π VI. Common Mistakes & Pitfall Guide (Lessons Learned)
β Mistake 1: Classifying a Diesel Engine as Spark-Ignition
π Consequence: Wrong HS code (8409.99 vs. 8409.91), leading to incorrect duty calculation and potential fraud charges.
β Mistake 2: Declaring Complete Engines as Parts to avoid higher scrutiny
π Consequence: Customs will detect missing major components (crankcase, etc.) and reclassify, leading to penalties and delays.
β Mistake 3: Ignoring the 18.65 kW Threshold
π Consequence: Using 8407.90.90.60 for a >18.65kW engine is non-compliant, even if the duty rate is similar, as it affects statistical tracking and regulatory requirements.
β Mistake 4: Not specifying Vehicle Type for Parts
π Consequence: Using 8409.91.99.90 for auto parts instead of 8409.91.50.85 may trigger audit flags for misclassification.
β Correct Practice:
"Spark-Ignition Internal Combustion Piston Engine, 20kW, Model XYZ, EPA Compliant, Serial No. 12345"
OR
"Cylinder Head, Part No. ABC, Designed for Spark-Ignition Engine, Vehicle Type: Truck (8704)"
π― VII. Conclusion: Precision in Classification, Savings in Cost!
π― Remember the Mantra:
πΉ "Engine by Power, Part by Car, Spark Not Diesel, 25% Extra for CA!"
πΉ "HS Code Determines Duty, Wrong Code Means Fine!"
π Pro Tip:
If your spark-ignition engine or part is originating from Vietnam, Mexico, or Thailand, you may qualify for lower or zero additional duties under trade agreements (e.g., USMCA, ASEAN).
Recommendation: Apply for a Pre-Ruling or consult a customs broker to optimize your HS code and duty rate.
π£ Take Action Now:
π Contact a Professional Customs Broker + Provide Product Specs + Apply for HS Code Pre-Ruling
π Ensure your Spark-Ignition Engines and Parts clear customs smoothly, efficiently, and cost-effectively!
β¨ Professional Clearance Starts with Accurate Classification!
πΌ Every cent of duty you save is profit earned!
Customer Reviews
About HS Code Classification
The Harmonized System (HS) is an internationally standardized nomenclature developed by the World Customs Organization (WCO) to classify traded products. Over 200 countries use the HS system as the basis for customs tariffs, trade statistics, and import/export regulations.
Each HS code follows a hierarchical structure:
- Chapter (2 digits) β Broad category of goods (e.g., Chapter 84: Machinery and Mechanical Appliances)
- Heading (4 digits) β More specific grouping within the chapter
- Subheading (6 digits) β Internationally standardized breakdown, used by all WCO member countries
- National subdivisions (8-10 digits) β Country-specific extensions for further classification, such as US HTSUS 10-digit codes
Correct HS code classification is essential for smooth customs clearance, accurate duty payment, and compliance with trade regulations. Misclassification can lead to customs delays, overpayment of duties, or penalties.
When importing from CN to US, the applicable tariff rates may include:
- Most-Favored-Nation (MFN) rate β The standard duty rate applied to WTO members
- General rate β Applied to countries without trade agreements
- Trade remedy duties β Additional tariffs such as Section 301 (anti-dumping), Section 232 (national security), or countervailing duties
The information provided on this page is for reference purposes only. For official classification, please consult with your local customs authority or a licensed customs broker.