Toyota 9091901276 Double Iridium Ignition Spark Plug

STSP1014 is a focused Toyota spark plug product identified with a Double Iridium material configuration. Unlike multi-reference product groups, this page is built around one OE and OEM reference combination, making product identification more straightforward for aftermarket distributors and importers.

For replacement purchasing, the spark plug should be selected according to the OE No. and corresponding OEM No. already listed on this page. This reference-based approach helps buyers distinguish the required product from other iridium spark plugs that may have a similar appearance or material description.

The Double Iridium classification identifies this product as a precious-metal spark plug specification. Compatibility should still be determined by the listed product reference rather than material category alone.

Iridium Material and Electrode Wear Control

Spark plug firing surfaces are repeatedly exposed to high-voltage discharge, combustion heat and rapid temperature changes. Iridium is used in spark plug electrode designs because of its resistance to wear under these operating conditions.

As electrode surfaces wear during repeated ignition cycles, the effective spark gap can gradually change. A larger gap generally requires a higher discharge voltage, so controlling electrode wear is important for maintaining a more consistent firing condition over time.

The Double Iridium material category should not be interpreted as a universal performance upgrade for every engine. Correct spark plug selection still depends on matching the required OE specification and overall ignition-system requirements.

Purchasing Details for Bulk Orders

IGNX supplies STSP1014 for distributors, importers and automotive aftermarket brands. For wholesale or repeat orders, buyers can confirm the product directly according to the OE No. and OEM No. already listed on this page.

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