Cadillac STS Ignition & Spark Plugs
We stock Genuine OEM Cadillac Ignition & Spark Plugs for your Cadillac STS. OEM ignition and spark plugs are designed specifically for your vehicle's engine, ensuring optimal performance and fuel efficiency. These parts are responsible for igniting the fuel in the combustion chamber, making them critical components of your engine's operation. By choosing OEM ignition and spark plugs, you can be confident in their quality and reliability, which can help extend the life of your engine and prevent potential damage or issues. Manufacturer's Warranty Included. Guaranteed Fit. Experts standing by.
Iridium Spark Plug
GM
12681660
3.6L, without bi-fuel. 3.0L. 3.6L, without twin-turbo. 3.0, 3.6L. 3.6L, 2nd design. Iridium is the latest in spark plug technology and...
$9.49
MSRP $17.36
Save $7.87
45.3% Off 
Iridium Spark Plug
GM
19301814
3.6L, 1st design. Iridium is the latest in spark plug technology and is an exact replacement for vehicles' original components
Iridium...
$9.88
MSRP $18.59
Save $8.71
46.9% Off 
Double Platinum Spark Plug
GM
19300872
Platinum. Vendor:acdelco. Vendor #41-990. 2.8 & 3.6L. 3.0 & 3.6L. 2nd Design. One-piece, fired-in suppressor seal blends three glass...
$7.39
MSRP $13.52
Save $6.13
45.3% Off 
Double Platinum Spark Plug
GM
12592619
4.4L. One-piece, fired-in suppressor seal blends three glass types for a gas-tight seal that helps reduce radio frequency and engine...
$7.36
MSRP $13.46
Save $6.10
45.3% Off 
Spark Plug Tube Seal
GM
12607600
3.6L. ATS. Spark plug shield seals.
$7.15
MSRP $9.65
Save $2.50
25.9% Off 
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