Other
Parts suitable for use solely or principally with the engines of heading 8407 or 8408: > Other: > Suitable for use solely or principally with spark-ignition internal combustion piston engines (including rotary engines): > Other: > Other
Duty Rate (from China)
Except for products described in headings 9903.03.02–9903.03.11, articles the product of any country, as provided for in subdivision (aa) of U.S. note 2 to this subchapter
Except as provided in headings 9903.88.13, 9903.88.18, 9903.88.33, 9903.88.34, 9903.88.35, 9903.88.36, 9903.88.37, 9903.88.38, 9903.88.40, 9903.88.41, 9903.88.43, 9903.88.45, 9903.88.46, 9903.88.48, 9903.88.56, 9903.88.64, 9903.88.66, 9903.88.67, 9903.88.68, or 9903.88.69, articles the product of China, as provided for in U.S. note 20(e) to this subchapter and as provided for in the subheadings enumerated in U.S. note 20(f)
Products classified under HTS 8409.91.99
Honda Civic K20A Type R Connecting Rod
H-beam forged steel connecting rod for Honda K20A 2.0L DOHC VTEC spark-ignition engine in Civic Type R. Features ARP 2000 rod bolts and optimized big-end bearing for high-revving performance. Falls under 8409.91.99 as a principal part for spark-ignition piston engines.
BMW S55 Cylinder Head
Aluminum CNC-ported cylinder head for BMW S55 3.0L twin-turbo inline-6 spark-ignition engine in M3/M4. Includes integrated Valvetronic system and direct injection passages. 8409.91.99 classification for spark-ignition IC engine principal parts.
Subaru EJ257 Turbo Manifold
Cast stainless steel tubular exhaust manifold for Subaru EJ257 2.5L turbocharged spark-ignition engine in WRX STI. Features equal-length runners and merge collector for twin-scroll turbo. Principal part under 8409.91.99 for spark-ignition engines.
GM LS3 Aluminum Engine Block
Semi-finished 6.2L LS3 aluminum engine block casting for GM Gen IV small block V8 spark-ignition engines. Features priority main oiling and 4.065-inch bore provisions. 8409.91.99 as principal unfinished part for spark-ignition piston engines.
Yamaha R1 Forged Camshafts
Pair of titanium nitride coated forged camshafts for Yamaha YZF-R1 998cc CP4 crossplane crankshaft spark-ignition engine. Features aggressive lift profile for 15,000+ RPM capability. Classified 8409.91.99 spark-ignition engine valvetrain parts.
Mercedes M177 Oil Pump Assembly
Variable displacement vane oil pump for Mercedes-AMG M177 4.0L V8 biturbo spark-ignition engine. Regulates pressure 2.5-6.0 bar for dry sump lubrication system. 8409.91.99 as principal spark-ignition engine lubrication part.
Porsche 991 GT3 Intake Manifold
Carbon fiber resonance-flap intake manifold for Porsche 991 GT3 3.8L naturally aspirated flat-six spark-ignition engine. Features individual throttle bodies and velocity stacks. Principal part 8409.91.99 for spark-ignition induction system.
Nissan VR38DETT Valve Cover
Billet CNC-machined valve cover for Nissan VR38DETT 3.8L V6 twin-turbo GT-R engine. Features integrated baffled PCV system and R-Tune breather provisions. 8409.91.99 spark-ignition engine top end part.
Audi RS7 Timing Chain Tensioner
Hydraulic timing chain tensioner for Audi RS7 4.0 TFSI V8 spark-ignition engine. Maintains 0.5-2.0mm chain tension across 7000 RPM range. Principal valvetrain part under 8409.91.99.
Ferrari F154 V12 Water Pump
Electric coolant pump for Ferrari F154 6.3L V12 spark-ignition engine in 812 Superfast. 50L/min flow at 2.5 bar for mid-engine cooling layout. 8409.91.99 engine cooling system principal part.
Lamborghini Huracan Dry Sump Pan
Billet aluminum 8-quart dry sump oil pan for Lamborghini Huracan LP610-4 V10 spark-ignition engine. Features scavenge ports and integrated pickup screens. Principal lubrication part 8409.91.99.
McLaren MP4-12C Throttle Body
82mm drive-by-wire throttle body for McLaren MP4-12C M838T 3.8L twin-turbo V8 spark-ignition engine. Features twin butterfly valves and position sensors. 8409.91.99 induction principal part.
Caterpillar 3406E Cam Follower Roller
Hardened steel roller cam follower for Caterpillar 3406E 14.6L spark-ignition industrial engine. 1.25-inch diameter roller for heavy-duty pushrod valvetrain. 8409.91.99 for large spark-ignition stationary engines.
Ford Mustang 5.0L Coyote V8 Engine Piston
Forged aluminum piston designed specifically for the 5.0L Coyote V8 spark-ignition engine used in Ford Mustang GT models. It features reinforced skirt design and valve reliefs optimized for high-performance spark-ignition combustion. Classified under 8409.91.99 as a part suitable solely or principally with spark-ignition internal combustion piston engines of heading 8407/8408.
Toyota 2JZ-GTE Inline-Six Crankshaft
Nitrided forged steel crankshaft for Toyota 2JZ-GTE 3.0L twin-turbo spark-ignition engine. Features 8-counterweight design and micro-polished journals for Supra MK4 racing applications. Classified 8409.91.99 as essential part principally used with spark-ignition piston engines.