Premium IFR7F-4D Spark Plugs for SINOTRUK Howo Natural Gas Engines

High-performance iridium alloy center electrode ensures extreme durability and consistent spark under heavy-duty conditions. Precision laser-welded tip design guarantees reliable ignition with 30% faster starts in cold climates.

Specially engineered copper core prevents overheating while maintaining optimal thermal conductivity for prolonged engine life. Ceramic insulator with triple-layer glaze resists carbon buildup and voltage leakage.

Direct OEM replacement part tested to meet strict SINOTRUK quality standards. Ideal for long-haul LNG trucks, mining vehicles, and industrial generator applications.

Batch-tested for flawless performance with 100% quality inspection before shipping. Bulk purchase discounts available for fleet operators and wholesale buyers.

Global shipping with guaranteed lowest price matching. Compatible with Howo A7, T7, and T5G natural gas engine models.