Iridium Platinum Replacement Spark Plug for Honda

STSP1047 is a Honda-focused replacement spark plug range covering four OE references currently listed on this page. The product group is identified with Iridium & Platinum together with Iridium material information, providing a focused precious-metal spark plug range for distributors, importers and automotive aftermarket buyers.

The current product list groups 12290-R48-H01, 12290-R70-A01, 12290-R40-A01 and 12290-R76-H01 under the STSP1047 range. For purchasing, each required item should still be confirmed according to the OE No. and corresponding OEM No. shown in the product information rather than selected only by material description or external appearance.

This grouped structure is useful for buyers managing several Honda ignition references, allowing related spark plug requirements to be handled within one sourcing category while keeping the individual OE reference clearly identified for quotation, inventory and repeat orders.

Precious-Metal Firing Design and Electrode Stability

Iridium-platinum spark plug designs use precious-metal firing surfaces to operate under repeated high-voltage discharge, combustion heat and rapid temperature changes. These materials provide good resistance to electrode wear under normal engine operating conditions.

A fine iridium firing electrode can help concentrate the electric field around the firing area, supporting efficient spark discharge. Platinum used at the opposing firing surface in suitable dual-precious-metal designs helps resist repeated spark erosion and limits progressive changes to electrode geometry.

Precious-metal material alone does not determine compatibility. Even where several OE references are grouped within STSP1047, correct replacement should continue to follow the corresponding reference information shown on the page rather than assuming that all iridium-platinum spark plugs are interchangeable.

Purchasing Details for Bulk Orders

IGNX supplies STSP1047 for distributors, importers and automotive aftermarket brands. For wholesale, mixed-reference or repeat purchasing, buyers should confirm each required spark plug according to the OE No. and corresponding OEM No. already provided in the product list.

For quotation, buyers can submit the required OE reference from the list above together with order quantity, packaging requirements and any private-label information. For mixed-reference or repeat orders, confirming the complete purchasing list before production helps simplify order checking and inventory management.