Iridium Spark Plug
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ACDELCOPART NUMBER: 065-41-103

Iridium Spark Plug

$1099
ShippingShips on Sep 16, 2026
Lowest PriceLowest Price Guarantee

    ACDelco Iridium Spark Plug

    ACDelco Iridium Spark Plugs are the latest evolution in high-performance plug electrode material and are designed to last 100,000 miles.

    Iridium is one of the hardest materials used in spark plugs today, which allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration.

Part TypeSpark Plug
Product LineACDelco Iridium Spark Plugs
BrandACDELCO
Package Height0.7
Package Width0.9
Package Length3.5
Weight0.1 PG
Part CategoryReplacement Parts
Gap Size (Mm)1.10
Reach (Mm)25.00
Reach0.98 in (24.9 mm)
Pack Of1
Ground Electrode Quantity1
Ground Electrode Tip DesignSingle Prong Electrode
Approximate Resistor Value4-7.5k ohms
Ground ConfigurationSingle
Thread Size14mm
Center Electrode Core MaterialCopper
Insulator Height (Mm)25
Gap Size0.043 in (1.092 mm)
Resistor PlugYes
Seat TypeTapered
Insulator Height0.98 in (24.892 mm)
Center Electrode Tip MaterialIridium
Ground Electrode Core MaterialNickel Alloy
Part FitmentDirect Fit
Hex Size0.63 in (16.002 mm)
Vendor Part Number41-103
Package Qty1
Package TypeEA
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