ACDELCO
ACDELCO
More Information for ACDELCO 41121
{Alternate Inventory Numbers: 41-121, 12681656, 55585517}
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ACDELCO 41121  
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$4.01
Price
 $0.00
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 $4.01
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ACDELCO 41121 Specifications
Center Electrode Core MaterialCopper
Center Electrode Tip MaterialIridium
Ground ConfigurationStandard
Ground Electrode Tip DesignStandard
Height (IN)0.8
Hex Size (MM)16
Insulator Height (in)1.99
Insulator Height (mm)50.5
Length (IN)3
Pre-Gap Size (IN)0.03
Pre-Gap Size (MM)0.71
Reach (IN)0.748
Reach (mm)18.999
Resistance (kOhms)7500
Resistor TypeYes
Seat TypeGasket
Thread Diameter (IN)0.551
Thread Diameter (MM)14
Weight (lb)0.03
Width (IN)0.8
GM Original Equipment; Iridium; Pre-Set Gap: 0.030"
ACDelco GM OE (Professional) Iridium Spark Plugs are a high quality replacement ideal for many vehicles on the road today. They are the latest in spark plug technology and an exact replacement for your vehicle's original components. Iridium composition of the spark plug provides a high melting point and great strength, and provides excellent wear resistance and durability.

Features & Benefits:
  • Iridium offers excellent engine idle stability and smooth performance
  • Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration
  • Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form
  • One piece suppressor seal helps block radio frequencies that can affect vehicle electronics
  • Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage
  • As spark plugs fire at an extremely high rate, these GM OE (Professional) Iridium Spark Plugs are under constant chemical, thermal, physical and electrical attack by corrosive gases that can reach upwards of 4,000 degrees Fahrenheit
Which ACDELCO Spark Plug Is Right For You?

Material / Series Lifespan / Durability Performance / Ignitability Efficiency / Fuel Economy
Copper / Nickel
Copper		 ★ ★
Platinum Rapidfire
Platinum		 ★★ ★★ ★★
Double Platinum
Double Platinum		 ★★★★ ★★ ★★
Iridium
Iridium		 ★★★ ★★★★ ★★★
ACDelco Quality

ACDelco breaks down their premium portfolio of Original Equipment and Aftermarket parts into two tiers: GM Original Equipment and ACDelco Gold.

GM ORIGINAL EQUIPMENT
GM Original Equipment parts are the true OE parts installed during production or validated by GM—designed, engineered, and tested to rigorous standards and backed by General Motors.
ACDELCO GOLD (PROFESSIONAL)
ACDelco Gold parts are the high-quality alternative to OE parts, manufactured to meet GM expectations for fit, form, and function and backed by General Motors.


OEM / Interchange Numbers: AI3922, XP3922

Closeout Inventory Warranty Information:
Wholesaler Closeout items have a 30 day warranty (but still are covered by our Return Policy).

Regular Inventory Warranty Information:
7 Years
Warranty Details