Buick Chevrolet Iridium Platinum Engine Spark Plug 8#41-108
IGNX No: STSP1040
OE No.:
8#41-108
OEM No.:
ILTR5D（12620540）
Materials:
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Iridium&Platinum
Product Detail
| ST NO. | Brand | OE NO. | OEM NO. | MATERIALS 1 | MATERIALS 2 | ORIGINAL | FIT FOR |
| STSP1040 | BUICK Chevrolet | 8#41-108 | ILTR5D（12620540） | Iridium&Platinum | AC | New Regal 2.0 |
STSP1040 is a reference-specific automotive spark plug supplied for the Buick and Chevrolet replacement requirements currently listed on this page. The product information identifies 8#41-108 together with ILTR5D (12620540) and classifies the spark plug within the Iridium & Platinum material category.
This clearly defined reference relationship gives distributors and importers a practical basis for quotation, purchasing and inventory management. Buyers can confirm the required product directly against the OE and OEM information already provided on the page instead of relying only on appearance or the general material description.
Even within the iridium-platinum spark plug category, different products can have different firing-end and application specifications. Reference matching should therefore remain the primary basis for replacement selection and repeat purchasing.
Reference-Specific Product The current page provides one clearly defined OE/OEM relationship for product identification.
Iridium & Platinum The product is identified within the precious-metal spark plug category in the current IGNX data.
OE-Oriented Replacement Purchasing should follow the reference information already listed on the product page.
Iridium Platinum Electrode Design and Wear Control
Spark plug firing surfaces operate under repeated high-voltage discharge, combustion heat and rapid temperature changes. Iridium and platinum are used in precious-metal spark plug designs because they offer good resistance to electrode wear under these operating conditions.
Fine precious-metal firing surfaces can help concentrate the electric field around the spark area, while resistance to repeated spark erosion helps limit progressive changes to electrode geometry as operating cycles accumulate.
Maintaining the intended firing-surface condition is important for consistent spark plug operation, but electrode material alone does not determine compatibility. STSP1040 should continue to be selected according to the 8#41-108 and ILTR5D (12620540) reference relationship already listed on this page.
Purchasing Details for Bulk Orders
IGNX supplies STSP1040 for distributors, importers and automotive aftermarket brands. For wholesale and repeat purchasing, buyers can confirm the required product according to the OE and OEM references already provided in the product information.
OE/OEM Reference Check Use the listed 8#41-108 and ILTR5D (12620540) relationship to confirm the required product.
Bulk & Repeat Orders Suitable for distributors and aftermarket buyers with recurring volume purchasing requirements.
OEM & Private Label Product branding, labeling and packaging can be customized according to purchasing requirements.
Pre-Production Confirmation Product reference and required specifications can be reviewed before volume production.
For quotation, buyers can provide the OE or OEM reference listed above together with the required quantity, packaging requirements and any private-label information. Confirming the product reference and order requirements before production helps simplify order checking, repeat purchasing and inventory management.
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