Double Iridium Spark Plug for Toyota

STSP1020 is a focused Double Iridium spark plug range for the Toyota OE references currently listed on this page. The two listed OE numbers correspond to the same OEM reference and are both identified with a Double Iridium material configuration.

This relatively focused reference structure makes product identification straightforward for distributors and importers sourcing the corresponding Toyota ignition part. Buyers should still confirm the exact OE No. against the OEM No. shown in the product list before ordering, especially when managing several similar spark plug references.

Double Iridium Firing Surfaces and Wear Control

In a Double Iridium spark plug design, iridium is used at both the center-electrode and ground-electrode firing areas. These working surfaces are repeatedly exposed to electrical discharge and combustion heat during engine operation.

Iridium is used because of its resistance to electrode wear under these conditions. Reducing wear on the firing surfaces helps slow changes in electrode geometry and the effective spark gap as ignition cycles accumulate.

This does not mean that every Double Iridium spark plug is interchangeable. Electrode material is only one part of the complete spark plug specification, so the required product should still be selected according to the OE and OEM references listed for STSP1020.

Purchasing Details for Bulk Orders

IGNX supplies STSP1020 for distributors, importers and automotive aftermarket brands. For wholesale and repeat orders, buyers can confirm the required product directly according to the OE No. and corresponding OEM No. already provided in the product list.

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