Champion Copper Plus Spark Plug RS9YC - Dependable Performance & Durability, 304
In stock
$4.79
Listed as compatible with this vehicle by the retailer feed.
Check price2011 Cadillac CTS Spark Plugs
29 products listed for this model year in the retailer catalog. Check engine and trim details before ordering.
Autolite Platinum Spark Plug: Improved Performance & Durability, AP5243
In stock
$5.49
Listed as compatible with this vehicle by the retailer feed.
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Autolite Platinum Spark Plug: Enhanced Durability & Improved Performance, AP5263
In stock
$5.49
Listed as compatible with this vehicle by the retailer feed.
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Champion Platinum Power Spark Plug RS10PYC4 - Powerful Performance & Longevity, 3401
In stock
$5.89
Listed as compatible with this vehicle by the retailer feed.
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Champion Platinum Power Spark Plug RE10PMC5 - Powerful Performance & Longevity, 3032
In stock
$5.99
Listed as compatible with this vehicle by the retailer feed.
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Champion Double Platinum Power Spark Plug RS9PYP4 - Enhanced Durability & Performance, 7304
In stock
$6.99
Listed as compatible with this vehicle by the retailer feed.
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ACDelco RAPIDFIRE Spark Plug, 8
In stock
$6.99
Listed as compatible with this vehicle by the retailer feed.
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Autolite Double Platinum Spark Plug: Enhanced Durability & Longer Service Life, APP5263
In stock
$7.49
Listed as compatible with this vehicle by the retailer feed.
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E3 DiamondFIRE Automotive Spark Plug: More Power & Fuel Efficiency, E3.54
In stock
$8.49
Listed as compatible with this vehicle by the retailer feed.
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NGK G-Power Spark Plug (LTR6GP): Enhanced Durability & Fuel Efficiency, 90198
In stock
$8.99
Listed as compatible with this vehicle by the retailer feed.
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NGK G-Power Spark Plug (TR6GP): Enhanced Durability & Fuel Efficiency, 5141
In stock
$8.99
Listed as compatible with this vehicle by the retailer feed.
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Champion Iridium Spark Plug RES9WYPB4 - Maximum Performance & Longevity, 9901
In stock
$10.49
Listed as compatible with this vehicle by the retailer feed.
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ACDelco Double Platinum Spark Plug, 41-814
In stock
$11.49
Listed as compatible with this vehicle by the retailer feed.
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ACDelco Double Platinum Spark Plug, 41-810
In stock
$11.49
Listed as compatible with this vehicle by the retailer feed.
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Autolite Iridium Iridium Ultra Fine Wire Spark Plug: Laser Welded for Optimum Performance, AI5263
In stock
$11.49
Listed as compatible with this vehicle by the retailer feed.
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Autolite Iridium Iridium XP Fine wire Spark Plug: Improved Durability, More Focused Ignition, XP5263
In stock
$11.49
Listed as compatible with this vehicle by the retailer feed.
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DENSO Iridium TT Spark Plug: Ultimate Endurance and Power, 0.4mm Iridium Tip, IT20TT, 4714
In stock
$13.49
Listed as compatible with this vehicle by the retailer feed.
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ACDelco Iridium Spark Plug, 41-109
In stock
$13.49
Listed as compatible with this vehicle by the retailer feed.
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ACDelco Iridium Spark Plug, 41-104
In stock
$13.49
Listed as compatible with this vehicle by the retailer feed.
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NGK Laser Platinum Spark Plug (PLTR6A-10G): Enhanced Ignitability & Longevity, 3587
In stock
$13.99
Listed as compatible with this vehicle by the retailer feed.
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DENSO Iridium Power Spark Plug: Maximum Spark Energy, 0.4mm Iridium Tip, IT20, 5326
In stock
$14.49
Listed as compatible with this vehicle by the retailer feed.
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NGK Iridium IX Spark Plug (TR6IX): Extreme Ignitability & Durability, 3689
In stock
$16.99
Listed as compatible with this vehicle by the retailer feed.
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NGK Iridium IX Spark Plug (LTR6IX-11): Extreme Ignitability & Durability, 6509
In stock
$17.99
Listed as compatible with this vehicle by the retailer feed.
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NGK Ruthenium HX Spark Plug (LTR6AHX): High Ignitability & Durability, 91276
In stock
$19.49
Listed as compatible with this vehicle by the retailer feed.
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This site contains affiliate links. We may earn a commission if you buy through them. We do not sell these products or guarantee merchant inventory. Compatibility is listed by the retailer feed for this vehicle; it is not an OEM confirmation. Catalog snapshot: Aug 15, 2026.