HSN code directory

HSN Code 8408: Compression-ignition internal combustion piston engines

Compression-ignition internal combustion piston engines (diesel or semi-diesel engines)


All 8-digit HSN codes under this heading

HSN codeDescription
84081010) - marine propulsion engines: outboard engines
84081091) - marine propulsion engines: other of a cylinder capacity not exceeding 100 cc
84081092) - marine propulsion engines: other of a cylinder capacity exceeding 100 cc but not exceeding 250 cc
84081093) - marine propulsion engines: other of a cylinder capacity exceeding 250 cc
84082010) - engines of a kind used for the propulsion of vehicles of chapter 87: of cylinder capacity not exceeding 250 cc
84082020) - engines of a kind used for the propulsion of vehicles of chapter 87: engines of cylinder capacity exceeding 250 cc
84089010) - other engines: stationary engines of cylinder capacity exceeding 50 cc
84089090) - other engines: other


GST rate guide for this chapter

Most machinery, computers and mechanical appliances are taxed at 18%. Agricultural and horticultural machinery, sprinklers and drip irrigation systems attract 5%, and air conditioners and dishwashers were reduced to 18% from 22 September 2025.


GST rates depend on the exact description of the goods in the rate schedules, not only on the HSN code. Some goods under the same heading are taxed at different rates, and conditions or exemptions can apply. Confirm the rate for your product before you raise invoices.


Frequently asked questions


How many digits of the HSN code must I show on a GST invoice?


Businesses with aggregate turnover of up to ₹5 crore in the previous year must show at least a 4-digit HSN code on B2B invoices. Businesses with turnover above ₹5 crore must show a 6-digit code on all invoices. The full 8-digit code is used for imports and exports.


What is the difference between an HSN heading and an 8-digit HSN code?


The first 2 digits are the chapter, 4 digits are the heading and 6 digits are the subheading under the international Harmonized System. India adds 2 more digits for a more precise tariff item, giving the 8-digit code used in customs and GST.


What happens if I use the wrong HSN code?


A wrong HSN code can lead to tax being charged at the wrong rate, mismatches in GSTR-1 and the HSN summary, and notices with interest and penalty. If you are unsure about classification, a CA can review it before you file.


Need help with classification or GST rates? GST registration and return filing or book a free consultation with our CA-led team.