Chapter 87 covers railway and tramway locomotives, rolling stock and parts thereof; railway and tramway track fixtures and fittings; various mechanical (including electromechanical) traffic signaling equipment; and road motor vehicles, tractors, motorcycles, bicycles, etc., and parts thereof. The core of this chapter is transport vehicles and their dedicated parts, but not all vehicle parts are classified in this chapter; attention must be paid to distinguishing from other chapters, such as engine parts classified in Chapter 84, and electrical parts classified in Chapter 85. Heading 8708 covers parts and accessories of motor vehicles (headings 8701 to 8705), including body parts, braking systems, gearboxes, drive axles, wheels, suspension systems, radiators, mufflers, exhaust pipes, clutches, steering wheels, steering columns, etc. However, it should be noted that certain parts, if more specifically named in other headings, are not classified in this heading, for example, engine parts are classified in 8408 or 8407, and electrical parts are classified in Chapter 85. First 2 digits 87: indicates Chapter 87, covering vehicles and parts thereof. Digits 3-4, 08: indicates heading 8708, i.e., parts and accessories of motor vehicles. Digits 5-6, 92: indicates subheading 870892, specifically mufflers and exhaust pipes. This subheading is further subdivided into: 87089210 (mufflers) and 87089220 (exhaust pipes), but according to HS coding rules, the first 6 digits already determine the scope of goods. This code applies to exhaust system components of various motor vehicles such as gasoline engines and diesel engines. Mufflers and exhaust pipes are dedicated parts of motor vehicle exhaust systems, used to reduce noise and guide exhaust gases, and are components of the vehicle's running system, therefore classified in 8708. They are not internal engine parts (such as pistons, valves), so they are not classified in 8409; nor are they electrical components, so they are not classified in Chapter 85. Compared with the adjacent code 870891 (radiators), they have different functions, so they are listed separately.

Product Name: Fill in the standard name of the commodity, such as "muffler" or "exhaust pipe", which should accurately reflect the characteristics of the commodity. Brand: Fill in the manufacturer or brand name; if no brand, fill in "no brand". Model: Fill in the specific model or part number of the commodity for identifying specifications. Applicable Vehicle Model: Fill in the vehicle brand, model, and year range to which this part applies. Material: Fill in the main material, such as stainless steel, aluminum alloy, aluminized steel, etc. Contains Catalyst: If the exhaust pipe contains a catalytic converter, it must be noted, as it may affect classification. OEM or Aftermarket Part: Declare whether it is an original equipment part or an aftermarket part. GTIN: If there is a Global Trade Item Number, it should be filled in. Product Name: Muffler; Brand: ABC; Model: XYZ-123; Applicable Vehicle Model: Toyota Corolla 2018-2022; Material: Stainless Steel; Contains Catalyst: No; OEM or Aftermarket Part: Aftermarket Part; GTIN: 1234567890123. Confusing mufflers with catalytic converters; the latter, if declared separately, may be classified under other codes. Ignoring material declaration; different materials may affect classification or regulatory conditions. Applicable vehicle model description is too broad, leading to customs questioning the accuracy of classification.

The core basis for classification is the function, use, and position of the commodity in the vehicle. Mufflers and exhaust pipes are dedicated parts of the exhaust system, used to reduce noise and discharge exhaust gases, and are parts of motor vehicles, therefore classified in 8708. According to HS notes, 8708 includes mufflers and exhaust pipes, but if the exhaust pipe has a catalytic converter, it may be classified in 870892 or 870899, requiring specific analysis. In addition, it is necessary to confirm whether the vehicle type falls within the scope of 8701-8705. 870891 Radiators: Radiators are used to cool the engine, while mufflers are used for exhaust noise reduction; their functions are different. 870899 Other Motor Vehicle Parts: 870899 is a residual code; if mufflers and exhaust pipes are not specifically named, they would be classified here, but since there is a specific listing, they are not classified here. 840991 Gasoline Engine Parts: Internal engine parts such as pistons and valves are classified in 8409, while mufflers are external exhaust components. 851140 Starter Motors: Electrical components are classified in Chapter 85 and are unrelated to the exhaust system. 732690 Other Articles of Iron or Steel: If mufflers are not clearly identified as vehicle parts, they might be mistakenly classified here, but their dedicated nature determines classification in 8708. Is it used for motor vehicles of 8701-8705? Is its main function noise reduction or exhaust? Does it not contain a catalytic converter? Does the material affect classification? Is it distinguished from internal engine parts?

Why are mufflers and exhaust pipes classified in 8708 instead of 8409? 8409 is for engine parts, including internal components such as pistons and connecting rods. Mufflers and exhaust pipes are exhaust system components, installed outside the engine, used for noise reduction and guiding exhaust gases, and are part of the vehicle's running system, therefore classified in 8708. If the exhaust pipe has a catalytic converter, does the HS code change? Catalytic converters are usually classified in 870892, but if integrated with the exhaust pipe, they may still be classified in 870892. However, if declared separately, the catalytic converter may be classified in 870899 or under other codes according to material. It is recommended to judge based on actual function. How to distinguish between 87089210 and 87089220? 87089210 is for mufflers, and 87089220 is for exhaust pipes. But according to the first 6-digit rule of HS codes, 870892 already covers both. When declaring, the 10-digit code should be filled in according to the specific commodity; China Customs may further subdivide. Does the material of the muffler affect classification? Material generally does not change classification, because 8708 is classified by use. However, if the material is special (such as precious metals), it may affect regulatory conditions, but the code remains unchanged. For cross-border e-commerce sales of mufflers, how to query the HS code? You can log on to the website of the General Administration of Customs of China or use an HS code query tool, enter the keyword "muffler" or "exhaust pipe", and filter by Chapter 87. Note to confirm the applicable vehicle model and material. What are the consequences of omitting brand and model during declaration? It may lead to customs rejection or inspection, affecting customs clearance efficiency. Brand and model are important references for classification, especially for distinguishing OEM parts from aftermarket parts; complete declaration is recommended. Are the export tax rebates for mufflers and exhaust pipes the same? The export tax rebate rate depends on the specific 10-digit code; 87089210 and 87089220 may differ. It is necessary to check the latest tax rebate rate. It is recommended to consult the local tax authority or check the customs tariff. How to determine whether a muffler is an OEM part or an aftermarket part? OEM parts usually have the vehicle manufacturer's brand and part number, while aftermarket parts use independent brands. Declaration must be truthful to avoid affecting price and regulatory conditions.