Honda Iridium Platinum Automotive Spark Plug 9807B-561BW

STSP1058 is a Honda-focused automotive spark plug built around the single OE and OEM reference combination currently listed on this page. The product is identified with an Iridium & Platinum material configuration, providing a clearly defined precious-metal spark plug reference for distributors, importers and automotive aftermarket buyers.

The current product information matches OE No. 9807B-561BW with OEM No. IZFR6K-11S. Because this page represents one specific reference rather than a multi-model product group, buyers can use this OE/OEM relationship directly when preparing quotations, purchase lists and repeat orders.

Reference matching remains important even among iridium-platinum spark plugs. Products with a similar material description or external appearance may use different firing-end and application specifications, so the listed OE/OEM relationship should remain the primary basis for replacement purchasing.

Iridium Center Electrode with Platinum Ground Surface

The IZFR6K-11S specification uses an iridium center electrode together with a platinum firing surface on the ground electrode. This dual precious-metal structure is designed for the repeated high-voltage discharge and combustion heat experienced at the spark plug firing end.

The fine iridium center electrode helps concentrate the electric field around the firing tip, reducing the voltage required to initiate spark discharge compared with a larger conventional firing surface. Platinum on the ground-electrode firing area provides additional resistance to spark erosion.

Reducing wear at the firing surfaces helps limit gradual changes in electrode geometry and spark-gap condition during normal operation. These characteristics are part of the specific IZFR6K-11S design and should not be used to assume interchangeability with other iridium or platinum spark plugs.

Purchasing Details for Bulk Orders

IGNX supplies STSP1058 for distributors, importers and automotive aftermarket brands. For wholesale and repeat purchasing, buyers should confirm the required product according to OE No. 9807B-561BW and OEM No. IZFR6K-11S already listed on this page.

For quotation, buyers can provide 9807B-561BW or IZFR6K-11S together with the required quantity, packaging requirements and any private-label information. Confirming the product reference and purchasing requirements before production helps simplify order checking, repeat purchasing and inventory management.