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Lycoming IO-540-K1A5 Piston Engine from Mexico

The Lycoming IO-540-K1A5 is a six-cylinder, fuel-injected, spark-ignition reciprocating piston engine producing 300 horsepower for light aircraft such as the Cessna 182 Skylane. It converts linear piston motion to rotary crankshaft output via connecting rods and crankshaft, optimized for certified aviation applications. Falls under HTS 8407.10.00 as a spark-ignition reciprocating internal combustion piston engine exclusively for aircraft.

Duty Rate — Mexico → United States

10%

Rate breakdown

9903.05.5510%Section 301 (forced labor) — additional 10% ad valorem on products of Mexico

Import Tips

Include Supplemental Type Certificate (STC) if modified from standard configuration; ensure TBO (Time Between Overhaul) records are current

Pitfall: mismatched propeller flange specs can cause installation compliance issues