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Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage. One piece suppressor seal helps block radio frequencies that can affect vehicle electronics.
Gm regularly updates production and service part designs to integrate new materials and technologies. Gm engineers design and validate OE parts specifically for your Chevrolet, GMC, Buick, or Cadillac vehicle. Some acdelco gm original equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional.

Increases fuel efficiency: g-power iridium Alloy Spark Plugs 12621258 offer superior performance with improved fuel efficiency, lower emissions, and quicker starts.
Stability: 05mm laser welded fine iridium tip reduces required voltage ensuring high durability and a consistently stable spark. Durability: trivalent metal Plating offers superior anti corrosion and anti seizing properties while the triple gasket seal eliminates combustion gas leakage.

Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration. Gm engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.
Iridium offers excellent engine idle stability and smooth performance. Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form. Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage.

Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original componentsá.
Gm engineers design and validate OE parts specifically for your Chevrolet, GMC, Buick, or Cadillac vehicle. Some acdelco gm original equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional. Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance.


Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration. Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage.
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics. Some acdelco gm original equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional. Iridium offers excellent engine idle stability and smooth performance.
1. GANGLE
#ad
Set of 8 IRIDIUM SPARK PLUGS for GM 41-110 12621258
#adGANGLE #ad - Tough and strong;Resistant to decay. Remove impurities, prtimize the performance of engine;Complete in specifications;easy and simple to handle. One year guarantee&excellent after service,willing to help if you have any questions.More information #ad
Constrctued from high quality material. High performance, low power consumption;Fully cope with the harsh environment;. Reliable quality assurance, all units are 100% factory tested reduce harmful emission;Multi-hole design can accelerate the rapid starting of engine in cold environment.Brand | GANGLE #ad |
Manufacturer | 12621258 #ad |
Height | 2 Inches |
Length | 2 Inches |
Weight | 0.66 Pounds |
Width | 2 Inches |
Part Number | 12621258 |
Warranty | Buyers have 30 days from purchase date of each item to notify us of any concerns. |
More information #ad
2. ACDelco
#ad
ACDelco GM Original Equipment 41-110 Iridium Spark Plug
#adACDelco #ad - Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration. Original equipment parts are designed to work with your GM vehicle safety systems -- aftermarket replacement parts may not meet the same OE safety regulations, depending on the part type.Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage. One piece suppressor seal helps block radio frequencies that can affect vehicle electronics.
More information #ad
Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form. Iridium offers excellent engine idle stability and smooth performance. Gm regularly updates production and service part designs to integrate new materials and technologies. Gm engineers design and validate OE parts specifically for your Chevrolet, GMC, Buick, or Cadillac vehicle. Some acdelco gm original equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional.
Brand | ACDelco #ad |
Manufacturer | ACDelco #ad |
Height | 1.1 Inches |
Length | 6.6 Inches |
Weight | 0.72 Pounds |
Width | 3.6 Inches |
Part Number | 41-110 |
Model | 41-110 |
Warranty | 7 Year / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
More information #ad
3. HiVehicle
#ad
Pack of 8, For Chevy GMC Cadillac Buick,Hummer,Isuzu,Pontiac,Saab, HiVehicle Iridium Spark Plug OE12621258 41 110
#adHiVehicle #ad - High quality material: top material:nickel, core material:iridium. Hivehicle purified alumina powder insulator from germany almatismodel:HVA FG Q06 and Full-automatic isopressing;Iron shellModel:20# 08 AL and automatic welding/rolling bending;Central electrode Iridium alloy and 360 degree laser welding.Increases fuel efficiency: g-power iridium Alloy Spark Plugs 12621258 offer superior performance with improved fuel efficiency, lower emissions, and quicker starts.
More information #ad
Increased conductivity: increased conductivity and heat control for good overall. Reduce the risk:hivehicle oe12621258 spark plugs Updated design reduce the risk of breaking off during working. Stability: 05mm laser welded fine iridium tip reduces required voltage ensuring high durability and a consistently stable spark. Durability: trivalent metal Plating offers superior anti corrosion and anti seizing properties while the triple gasket seal eliminates combustion gas leakage.
Brand | HiVehicle #ad |
Manufacturer | HiVehicle #ad |
Height | 0.55 Inches |
Length | 2.99 Inches |
Width | 0.55 Inches |
Part Number | EBUS003 |
More information #ad
4. ACDelco
#ad
ACDelco GM Original Equipment 41-108 Iridium Spark Plug
#adACDelco #ad - Acdelco gm original equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors. Some acdelco gm original equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional.Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration. Gm engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.
More information #ad
One piece suppressor seal helps block radio frequencies that can affect vehicle electronics. Gm regularly updates production and service part designs to integrate new materials and technologies. Iridium offers excellent engine idle stability and smooth performance. Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form. Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage.
Brand | ACDelco #ad |
Manufacturer | ACDelco #ad |
Height | 1 Inches |
Length | 6.7 Inches |
Weight | 0.05 Pounds |
Width | 3.9 Inches |
Part Number | 41-108 |
Model | 41-108 |
Warranty | 7 Year / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
More information #ad
5. ACDelco
#ad
ACDelco GM Original Equipment 41-162 Iridium Spark Plug
#adACDelco #ad - Three piece fired in suppressor seal meters spark energy for long electrode life, helps prevent combustion leakage and helps block radio frequencies that can affect vehicle electronics. Acdelco gm original equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors.Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original componentsá.
More information #ad
Iridium composition provides a high melting point and great strength, helps to provide excellent wear resistance and durability. Gm regularly updates production and service part designs to integrate new materials and technologies. Gm engineers design and validate OE parts specifically for your Chevrolet, GMC, Buick, or Cadillac vehicle. Some acdelco gm original equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional. Iridium offers excellent engine idle stability, reliable cold starting, quick acceleration and smooth performance.
Brand | ACDelco #ad |
Manufacturer | ACDelco #ad |
Height | 1.06 Inches |
Length | 4.13 Inches |
Weight | 0.1 Pounds |
Width | 3.56 Inches |
Part Number | 41-162 |
Model | 41-162 |
Warranty | 100,000 Miles / Unlimited Months (Parts Only) |
More information #ad
6. ACDelco
#ad
ACDelco GM Original Equipment 41-103 Iridium Spark Plug
#adACDelco #ad - One piece suppressor seal blocks radio frequencies that can affect vehicle electronics. Iridium offers better engine idle stability and smoother performance.More information #ad
Iridium allows for smaller, more efficient electrode designs for improved cold starting and quicker acceleration. Suppressor seal meters spark energy for longer electrode life and seals against combustion leakage.Brand | ACDelco #ad |
Manufacturer | ACDelco #ad |
Height | 1 Inches |
Length | 6.7 Inches |
Weight | 0.09 Pounds |
Width | 3.9 Inches |
Part Number | 41-103 |
Model | 41-103 |
Warranty | 7 Year / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
More information #ad
7. ACDelco
#ad
ACDelco GM Original Equipment 41-101 Iridium Spark Plug
#adACDelco #ad - Iridium fine-wire electrode helps burn away carbon deposits on the tip of the plug as they form. Gm engineers design and validate OE parts specifically for your Chevrolet, Buick, GMC, or Cadillac vehicle.Iridium allows for small, efficient electrode designs for reliable cold starting and quick acceleration. Suppressor seal meters spark energy for long electrode life and helps prevent combustion leakage.
More information #ad
Acdelco gm original equipment parts are designed, engineered and tested to rigorous standards, and are backed by General Motors. Gm regularly updates production and service part designs to integrate new materials and technologies. One piece suppressor seal helps block radio frequencies that can affect vehicle electronics. Some acdelco gm original equipment parts may have formerly appeared as GM Genuine Parts OE or ACDelco Professional. Iridium offers excellent engine idle stability and smooth performance.
Brand | ACDelco #ad |
Manufacturer | ACDelco #ad |
Height | 6.6 Inches |
Length | 3.6 Inches |
Weight | 0.06 Pounds |
Width | 1.1 Inches |
Part Number | 41-101 |
Model | 41-101 |
Warranty | 7 Year / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
More information #ad