Valve Stem Oil Seal
Precision rubber seal fitted on engine valve stems to control oil flow into combustion chambers of automotive engines. Essential for Chapter 87 vehicles. HTS 4016.93.1020 as automotive oil seal.
Import Duty Rates by Country of Origin
Alternative Classifications
This product could be classified differently depending on its characteristics or intended use.
If non-vulcanized rubber tubes
Chapter notes exclude vulcanized forms from tubes/pipes headings.
If as part of complete piston engine
Assembly classification supersedes individual rubber components.
Not sure which classification is right?
Our AI classifier can analyze your specific product and recommend the correct HTS code with confidence.
Import Tips & Compliance
• Specify elastomer type (e.g
• fluorocarbon) and stem diameter for accurate duty assessment
• Bundle with valve train invoices only if proven automotive assembly
Related Products under HTS 4016.93.10.20
Timing Cover Oil Seal
Oil seal for timing chain/belt covers on automotive engines, preventing leaks at the front crankshaft. Chapter 87 specific. HTS 4016.93.1020.
Oil Pump Shaft Seal
Rubber seal for automotive engine oil pump shafts, ensuring prime pressure. For Chapter 87. 4016.93.1020.
Axle Output Shaft Oil Seal
Seal for axle output shafts in drivetrains of Chapter 87 vehicles. Retains differential oil.
Turbocharger Oil Seal
High-temp rubber seal for turbo oil feed/drain lines in performance vehicles.
Motorcycle Crankshaft Oil Seal
Oil seal for motorcycle engines (Chapter 87). Vulcanized rubber.
EGR Valve Oil Seal
Seal for exhaust gas recirculation valves in emissions systems.