Cast Iron Resonator for GMC Sierra from Japan
Cast iron resonator chamber for GMC Sierra trucks that attenuates mid-range exhaust frequencies before the muffler. Under HTS 8708.92.70.00 as a cast iron exhaust system part for heavy-duty pickups. Its robust design suits high-performance diesel variants.
Duty Rate — Japan → United States
12.5%
Rate breakdown
9903.05.4912.5%Section 301 (forced labor) — Japan (col1 rate < 12.5 percent): MFN < 12.5% → total duty capped at 12.5%
Import Tips
• Acoustic performance data helps prove exhaust function over general castings
• Mark with heat-resistant paint specs compliant with automotive standards
• Separate from catalytic converters to avoid hazardous material declarations