The Customs, Excise and Service Tax Appellate Tribunal (CESTAT), Chennai, has held that ring, pinion and side gears imported loose for vehicle differentials and gear boxes are “gears and gearing” of heading 84.83, not parts of motor vehicles of heading 87.08. The deciding provision was condition (c) of the General Explanatory Note to Section XVII, Part (III): a part more specifically covered by another heading is excluded from the vehicle-parts headings, even if it is used only in vehicles. A duty demand of ₹14,88,51,255 was set aside.
Case: Toyota Kirloskar Auto Parts Private Limited v. Commissioner of Customs, Chennai-II (Import), CESTAT Chennai, Customs Appeal No. 40683 of 2023 with Appeal Nos. 40684, 40685 and 40798 of 2023; Final Order Nos. 40909-40912/2026, decided 27 July 2026.
At a glance
| Point | Detail |
| Goods | Ring gears, pinion gears, side gears, a rotor and a gear blank, imported loose for making vehicle rear axles and gear boxes |
| Importer’s classification | Tariff item 8483 40 00 (HS subheading 8483.40) |
| Revenue’s classification | Tariff item 8708 50 00 (HS subheading 8708.50) |
| Deciding provision | General Explanatory Note to Section XVII, Part (III), condition (c), applied under GRI 1 |
| Result | Importer’s appeals allowed; Department’s appeal dismissed; heading 84.83 upheld |
| Duty demand | ₹14,88,51,255 |
| Total exposure on the company | ₹36,77,02,510, excluding interest |
| Amount payable after appeal | Nil |
1. Why this case is worth studying
Almost every vehicle contains parts that also have a named home somewhere else in the tariff: bearings, valves, gaskets, gears. The customs side usually starts from use: the part is made for a vehicle, so it is a vehicle part of Chapter 87. The importer usually starts from description: the tariff names the article, so it goes where it is named.
This decision is a clean test of those two starting points. Nobody disputed what the goods were, what they did, or where they ended up. The only question was which heading wins when a gear is used solely in a motor vehicle. The answer the Tribunal gave turns on one sentence in the Explanatory Notes, and it is worth studying both for what it decides and for what it leaves open.
2. The goods
The importer is a joint venture that manufactures gear boxes and rear axle assemblies with differential, supplied for vehicles made in India. It imported the following items from its overseas parent supplier between February 2021 and November 2022.
| No. | Item | Use | Duty demanded (₹) |
| 1 | Final Gear Kit, Differential (a ring gear and a pinion gear in one package) | Rear axle | 9,58,82,901 |
| 2 | Gear, Differential Side | Rear axle | 2,62,99,775 |
| 3 | Pinion, Differential | Rear axle | 1,84,93,060 |
| 4 | Rotor, Skid Control, RR | Shaft sub-assembly of the rear axle | 80,13,705 |
| 5 | Pinion, Differential | Gear box | 41,016 |
| 6 | Gear, Differential Side | Gear box | 81,444 |
| 7 | Gear, Differential Ring (a gear blank, imported unfinished) | Gear box | 39,354 |
| Total | 14,88,51,255 |
The Tribunal recorded that none of the gears were assembled together at import. The ring, pinion and side gears are the main components of a differential. They turn the transmission’s rotation through 90 degrees from the drive shaft to the axle shafts, and let the wheels on one axle rotate at different speeds in a corner.
After import the gears are washed, caulked, pressed and crimped, then assembled into a differential or a gear box. The gear blank is turned, drilled, hobbed, shaved and heat treated into a finished gear. The rear axle assembly is sold under 8708 50 00 and the gear box under 8708 40 00. Both sides agreed that the goods are suitable for use solely or principally with motor vehicles.
3. Timeline
- February 2021 to November 2022: imports declared under 8483 40 00, at the then applicable basic customs duty of 7.5% and IGST of 18%.
- 31 December 2021: the Directorate of Revenue Intelligence (DRI) calls for documents, on the view that 8708 50 00 applies, at the then applicable basic customs duty of 15% and IGST of 28%.
- 9 February 2023: show cause notice proposing reclassification, a duty demand of ₹14,88,51,255, confiscation of goods valued at ₹69,60,54,516, and penalties.
- 17 July 2023: Order-in-Original confirms the reclassification and the demand.
- 27 February 2026: four connected appeals heard by a two-member Bench.
- 27 July 2026: importer’s appeals allowed; Department’s appeal dismissed.
4. The question
Are gears imported for assembly into vehicle differentials and gear boxes classifiable as “gears and gearing” under heading 84.83, or as parts of motor vehicles under heading 87.08?
5. The competing provisions
Heading 84.83
Transmission shafts (including cam shafts and crank shafts) and cranks; bearing housings and plain shaft bearings; gears and gearing; ball or roller screws; gear boxes and other speed changers, including torque converters; flywheels and pulleys, including pulley blocks; clutches and shaft couplings (including universal joints).
- Subheading 8483.40: “Gears and gearing, other than toothed wheels, chain sprockets and other transmission elements presented separately; ball or roller screws; gear boxes and other speed changers, including torque converters”.
- Subheading 8483.90: “Toothed wheels, chain sprockets and other transmission elements presented separately; parts”.
Heading 87.08
Parts and accessories of the motor vehicles of headings 87.01 to 87.05.
- Subheading 8708.40: “Gear boxes and parts thereof”.
- Subheading 8708.50: “Drive-axles with differential, whether or not provided with other transmission components, and non-driving axles; parts thereof”.
Note 1(l) to Section XVI
This Section does not cover: … (l) Articles of Section XVII.
Note 2(e) to Section XVII
The expressions “parts” and “parts and accessories” do not apply to the following articles, whether or not they are identifiable as for the goods of this Section: … (e) Machines or apparatus of headings 84.01 to 84.79, or parts thereof, other than the radiators for the articles of this Section; articles of heading 84.81 or 84.82 or, provided they constitute integral parts of engines or motors, articles of heading 84.83.
Note 3 to Section XVII
References in Chapters 86 to 88 to “parts” or “accessories” do not apply to parts or accessories which are not suitable for use solely or principally with the articles of those Chapters.
General Explanatory Note to Section XVII, Part (III)
The headings for parts and accessories in the Section apply only to parts or accessories which comply with all three of the following conditions:
(a) They must not be excluded by the terms of Note 2 to this Section; and (b) They must be suitable for use solely or principally with the articles of Chapters 86 to 88; and (c) They must not be more specifically included elsewhere in the Nomenclature.
Paragraph (C) of the same Note adds:
Parts and accessories, even if identifiable as for the articles of this Section, are excluded if they are covered more specifically by another heading elsewhere in the Nomenclature.
6. The Revenue’s case for 87.08
- The gear kit is solely and principally used in the rear axle of one vehicle model and has no other purpose.
- Subheading 8708.50 covers drive-axles with differential and “parts thereof”.
- The Explanatory Note to heading 84.83 excludes transmission equipment designed for use solely or principally with vehicles, and the Note to heading 87.08 lists gear pinions, gears and gearing among vehicle parts.
- The supplier’s invoices and shipping documents showed 8708 50 00, and 8483 40 00 appeared nowhere on them.
- A foreign customs administration had classified similar differential gear sets under heading 87.08.
- The trade treats and sells these goods as parts of the differential assembly.
- Senior personnel of the importer had accepted the 87.08 classification in their statements.
The first order added a structural point. If every gear went to heading 84.83, the words “parts thereof” in subheadings 8708.40 and 8708.50 would be redundant. Read harmoniously, general-purpose gears for machinery go to 84.83, and gears principally and solely meant for vehicles go to 87.08.
7. The importer’s case for 84.83
- “Gears and gearing” are specifically mentioned in heading 84.83, so GRI 1 places the goods there.
- The Explanatory Note to heading 84.83 says the group “covers all types of gears including simple cog wheels, bevel gears, conical gears, helical gears, worms, rack and pinion gears, differential gears, etc., and assemblies of such gears”.
- A part falls in Chapter 87 only if all three conditions in the General Explanatory Note to Section XVII are met.
- Under Note 2(e), the gears are transmission parts of the engine and so are excluded from Section XVII.
- Goods covered specifically elsewhere cannot be classified in Section XVII.
- The code on a supplier’s invoice binds neither the importer nor Customs.
- On the other grounds, no interest is leviable on IGST, the exercise is revenue neutral, claiming a classification is not misdeclaration, and the penalty imposed went beyond the notice.
8. How the Tribunal reasoned
Method first. The Tribunal began with GRI 1: classification is determined by the terms of the headings and any relative Section or Chapter Notes. It relied on the Supreme Court’s ruling in Commissioner of Customs (Import) v. Welkin Foods (2026 INSC 19) that the General Rules are applied in strict sequence, and that where the domestic tariff is fully aligned with the HS, the Explanatory Notes are binding guidance. It also restated that when the Department proposes a classification different from the one declared, the burden of proof is on the Department.
Parts are “articles of Section XVII”. Section XVI excludes articles of Section XVII. The Tribunal held that goods listed in the Section XVII headings, including “parts thereof”, are articles of that Section, so long as they are properly classifiable there. The real question therefore became whether these gears qualify as vehicle parts under heading 87.08.
The two conditions in the Note to heading 87.08. The first order had relied on paragraphs (D), (E) and (F) of the Explanatory Note to heading 87.08, which list gear pinions, gears and gearing. The Tribunal pointed out that the same Note first requires two conditions: the parts must be identifiable as suitable for use solely or principally with the vehicles, and they must not be excluded by the Notes to Section XVII, read with the General Explanatory Note.
Condition (a): the importer loses. Note 2 to Section XVII lists articles that are never treated as vehicle “parts”, from parts of general use to most machinery of Chapters 84 and 85, but only Note 2(e) was argued here. It excludes articles of heading 84.83 only where they are integral parts of engines or motors. The General Explanatory Note identifies these as internal parts of engines, such as crank shafts, cam shafts and flywheels. The importer itself described the goods as parts of the rear axle or the gear box, so they are not internal engine parts. The exclusion did not apply.
Condition (b): agreed. Both sides accepted sole or principal use with motor vehicles. On the related dispute about three of the items, the Tribunal accepted the importer’s explanation that they go into gear boxes, because the Department offered no evidence against it.
Condition (c): the Department loses. Paragraph (C) excludes parts “even if identifiable as for the articles of this Section” where they are covered more specifically by another heading elsewhere. The Tribunal read those words as unequivocal: the enquiry is into the other heading, regardless of whether the part also appears in the description of a Section XVII heading. Gears and gearing are specifically mentioned in heading 84.83. Condition (c) was therefore not met, and since the three conditions are cumulative, the gears could not be classified under heading 87.08.
The redundancy argument. The first order’s concern that “parts thereof” would become redundant was held to be misplaced, because it was reached without considering paragraph (C).
The exclusion in the Note to heading 84.83. That Note sends gear boxes, transmission shafts, clutches and differentials designed for vehicles to Section XVII. The Tribunal answered that the Department never claimed the goods were differentials or drive-axles themselves, only parts of the rear axle assembly.
The supporting grounds fell away.
- The supplier’s code does not stop the importer, the officer or the adjudicator from classifying on merits. Otherwise any importer could ask a supplier to print a convenient code.
- Classification rests on the goods as presented and the import documents, not on the opinions of the importer’s personnel.
- The foreign rulings never considered heading 84.83 against heading 87.08.
- The trade parlance finding was a bare assertion, with no market enquiry or evidence behind it.
Precedent. The Tribunal drew support from earlier Tribunal decisions classifying similar transmission gears under heading 84.83, and from a Supreme Court decision that applied the same paragraph (C) to textile car mats and held that no common parlance test was needed once that paragraph applied.
9. The decision
The Tribunal held that the goods are specifically included in heading 84.83 and are classifiable there “in terms of Rule 1 itself”, with no need to go to the later Rules. The importer’s classification was correct.
The first order had imposed:
- differential duty of ₹14,88,51,255, with interest
- an equal penalty of ₹14,88,51,255 on the company
- a redemption fine of ₹7,00,00,000
- personal penalties totalling ₹32,00,000 on a manager and the managing director
That is ₹36,77,02,510 on the company before interest. With the classification upheld, the Tribunal found that no question of duty, confiscation, interest, redemption fine or penalty arose. The Department’s appeal, which sought a penalty under a different section, was dismissed.
10. Reading the decision against the Harmonized System
The Tribunal’s route can be set out as a GRI path.
- GRI 1. Two headings are in contention: 84.83 by description, 87.08 by use.
- Note 1(l) to Section XVI. Section XVI gives way if the goods are articles of Section XVII. So the Section XVII test comes first.
- Note 2(e) to Section XVII. Not engaged, because the gears are not integral parts of engines or motors.
- Note 3 to Section XVII. Satisfied, because sole or principal use with vehicles is agreed.
- General Explanatory Note to Section XVII, Part (III)(C). The gears are more specifically covered by heading 84.83, so they are not parts of heading 87.08.
- Result at heading level: heading 84.83, under GRI 1.
- GRI 6. The subheading must then be chosen within heading 84.83. The order upheld the declared 8483 40 00 and did not take this step separately (see section 11).
11. Critical observations
This decision deserves a careful reading, because a strong contrary case exists in the same texts.
Two defensible readings
- Reading A, the Tribunal’s: heading 84.83 names gears and gearing, its Explanatory Note expressly includes differential gears, and paragraph (C) removes from Section XVII any part more specifically covered elsewhere.
- Reading B, the Department’s: Note 2(e) to Section XVII is legal text, and it excludes articles of heading 84.83 from “parts” only when they are integral parts of engines. That limit implies that other articles of heading 84.83 made for vehicles remain vehicle parts. The Explanatory Note to heading 84.83 sends vehicle gear boxes and differentials to Section XVII, and the Explanatory Note to heading 87.08, paragraph (F), lists “gears, gearing” as vehicle transmission parts.
The outcome depends on how much weight condition (c) can bear. On Reading A it overrides everything once another heading names the article. On Reading B it cannot be applied to heading 84.83 without emptying the proviso in Note 2(e) and paragraph (F) of the Note to heading 87.08. The order does not explain what gears paragraph (F) would still cover under its approach. It is also relevant that the three-condition test sits in the Explanatory Notes, while Note 2(e) and Note 1(l) are legal Notes under GRI 1.
Other points left open
- Parts of differentials versus differentials. The Tribunal distinguished the exclusion in the Note to heading 84.83 on the ground that the goods are not differentials themselves. The Final Gear Kit, a matched ring and pinion set, is the item closest to that line.
- Subheading 8483.40 or 8483.90. Subheading 8483.40 covers gears and gearing “other than toothed wheels … presented separately”, which fall in 8483.90. Several items were individual gears imported loose. The order treats gears as “more specifically covered under Tariff item 8483 40 00” without examining the split. The tariff extract in the order shows the same basic duty of 7.5% for both items.
- The gear blank. One item was an unfinished gear. The order does not analyse it separately under GRI 2(a).
- Grounds not decided. Interest on IGST, revenue neutrality, and whether a penalty could be imposed under a section not proposed in the notice were all left unaddressed.
- Not the last word. A Tribunal order can be carried further in appeal, and the classification of vehicle transmission gears is treated differently in some other jurisdictions.
12. Takeaways for importers and classifiers
- Run the Section XVII test in full. For any vehicle part, check all three conditions, and record the answer to each. A part that passes all three still needs the right subheading of heading 87.08, as in the ILJIN automotive parts case.
- Do not stop at sole use. Sole or principal use is one condition out of three. It does not settle the heading by itself.
- Look for a naming heading. Where another heading describes the article by name, be ready to argue condition (c) either way.
- Know the limit of Note 2(e). For heading 84.83 it reaches only integral, internal parts of engines or motors.
- Classify independently of the supplier. The supplier’s code is not binding, but an unexplained mismatch between the invoice and the declaration invites investigation. Keep a written classification rationale.
- Ask for evidence. The burden is on the Department when it proposes a different heading. Trade parlance must be proved, not asserted.
- Test foreign rulings. A ruling helps only if it weighed the same competing headings.
- Check the subheading. Within heading 84.83, decide between 8483.40 and 8483.90 for each item as presented.
This article is an educational analysis of a published decision. It is not a binding ruling and is not legal advice. HS texts are quoted from the Harmonized System, 2022 edition, of the World Customs Organization. Codes of six digits are HS subheadings; the eight-digit codes are India’s national tariff items.