⚡ Spark your engine’s true potential with Autolite Copper Power!
The Autolite Fram 437-4PK Copper Non-Resistor Spark Plug pack features a full copper core electrode for superior heat conductivity, a leak-proof heat-fused internal seal for durability, and a copper-glass seal construction for reliable spark delivery. Designed to improve fuel efficiency, quick starts, and smooth acceleration, these spark plugs bring decades of trusted Autolite innovation to your vehicle’s performance.
Manufacturer | FRAM |
Brand | Autolite Iridium Ultra |
Model | 437-4PK |
Product Dimensions | 2.54 x 2.54 x 8.59 cm; 226.8 g |
Item model number | 437-4PK |
Exterior | Chrome |
Manufacturer part number | 437-4PK |
Item Weight | 226 g |
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