How to replace a spark plug safely and effectively on Cadillac CTS?

Shock the engine by turning off the ignition before extracting the Ignition Coil. Use compressed air to remove debris from the Spark Plug cavity after first cleaning the Spark Plug recess area to avoid damaging the Cylinder Head through the entry of dirt. Thread chasers function to eliminate contaminations that settle on threads. Leave the engine to cool down before Spark Plug removal because thread siege could occur. Use exclusively the spark plugs designated for your vehicle when installing a new plug since engine damage occurs when using plugs with different temperatures. All new and reconditioned spark plugs should undergo gap testing with round feeler gauges to confirm the specifications because improper gaps result in engine performance problems or engine damage. Use a thread chaser when installing the Spark Plug thread to ensure easy entry into the Cylinder Head and complete seat. Avoid cross-threading and overheating by using the thread chaser tool. Reinstall the Ignition Coil after you tighten the Spark Plug to 20 n.m (15 lb ft).

How to verify that the correct spark plug is installed and ensure its proper function on Cadillac Escalade?

Driveability problems may occur when the wrong Spark Plug exists in the system so verify that the proper plug is in place. Use a Spark Plug with an appropriate heat range to prevent damage to both the engine and Spark Plug which might occur with either a cold plug causing fouling or hot plug triggering pre-ignition. The terminal p05 must be checked for damage by inspecting the terminal post for bends or breaks. Additionally, the post should stay stationary when twisting or pulling the terminal. Check the insulator for both sparkover and carbon track issues caused by electric charge travel from terminal post to ground while inspecting the Spark Plug boot and Spark Plug recess area in the Cylinder Head for liquid moisture as boot saturation leads to arcing problems. The proper operational condition of the insulator can be checked by examining it for potential electrical charge-allowing cracks that may produce arcing instead of reaching the electrodes (3, 4). Additionally test for possible arcing issues by verifying that the center electrode and side electrode terminal gap matches ignition system specifications to prevent impediments to Spark Plug functioning. According to ignition system specifications, adequate torque must be confirmed when installing spark plugs because improper torque can lead to operational deficits and excessive torque may cause the insulator to break. Check for tracking along the insulator tip instead of the center electrode section and verify the condition of side electrode and center electrode through a motion test; hear a rattling sound means internal damage exists while loose center electrode produces weak sparks. Inspection of electrodes (3, 4) must confirm they have no deposits between them while checking for worn off or missing platinum pads on the electrodes (3, 4) and verifying decreased fouling. Check the Cylinder Head Spark Plug recess to examine for debris since poor thread condition can impede full seating when installing the Spark Plug. A normal Spark Plug will exhibit brown to grayish-tan coloring with limited white powdery residue but carbon fouling will show itself as dry black carbon soot that stems from conditions like rich fuel mixtures, fuel injector leakage, high fuel pressure, obstructed air filters, incorrect combustion, reduced ignition output, weak coils, worn ignition wires, or misaligned Spark Plug gap. Slowing down the engine during light loads at idle periods prevents combustion deposits from burning fully off resulting in spark intensity loss together with deposit fouling caused by oil or coolant or some additives. However, solid powdery deposits normally do not alter spark intensity unless they create a coating on the electrode.

OEM Cadillac Spark Plug

Ignition Spark Plug

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28 Spark Plugs found

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Cadillac Spark Plug Part Number: 12662396
$9.52 MSRP: $17.00
You Save: $7.48 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug,Glow
Fits the following Cadillac Models:
- ATS | 2016-2019 | V | 6 Cyl 3.6 L GAS
- CT4 | 2022-2024 | V Blackwing | 6 Cyl 3.6 L GAS
- CTS | 2016-2019 | Vsport, Vsport Premium, Vsport Premium Luxury | 6 Cyl 3.6 L GAS
- XTS | 2015-2019 | Vsport Platinum, Vsport Premium, Vsport Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac Glow Plug Part Number: 97226202
$19.63 MSRP: $35.06
You Save: $15.43 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Glow Plug, Spark Ignition
Fits the following Cadillac Models:
- Escalade | 2002-2003 | Base | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Escalade ESV | 2003 | Base | 8 Cyl 6.0 L GAS
- Escalade EXT | 2002-2003 | Base | 8 Cyl 6.0 L GAS
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Cadillac Spark Plug Part Number: 55564748
$13.38 MSRP: $23.90
You Save: $10.52 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug,Glow
Fits the following Cadillac Models:
- SRX | 2010-2011 | Performance, Premium | 6 Cyl 2.8 L GAS
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Cadillac Glow Plug Part Number: 12639701
$25.20 MSRP: $45.00
You Save: $19.80 (44%)
ADD TO CART
Product Specifications
- Other Name: Glow Plug, Glow; Diesel Glow Plug; Glow Plug, Spark Ignition
- Replaces: 97364968
Fits the following Cadillac Models:
- Escalade | 2006 | Base | 8 Cyl 6.0 L GAS
- Escalade ESV | 2006 | Base | 8 Cyl 6.0 L GAS
- Escalade EXT | 2006 | Base | 8 Cyl 6.0 L GAS
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Cadillac Glow Plug Part Number: 97326305
$24.56 MSRP: $43.86
You Save: $19.30 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Glow Plug, Spark Ignition; Diesel Glow Plug
Fits the following Cadillac Models:
- Escalade | 2004-2005 | Base | 8 Cyl 5.3 L GAS, 8 Cyl 6.0 L GAS
- Escalade ESV | 2004-2005 | Base | 8 Cyl 6.0 L GAS
- Escalade EXT | 2004-2005 | Base | 8 Cyl 6.0 L GAS
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Cadillac Spark Plug Part Number: 19300872
$7.57 MSRP: $13.52
You Save: $5.95 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug, Spark Ignition; Spark Plug,Glow
- Replaces: 12597464, 92220447
Fits the following Cadillac Models:
- CTS | 2007-2009 | Base | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS
- STS | 2005-2009 | Base, Platinum | 6 Cyl 3.6 L GAS
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Cadillac Spark Plug Part Number: 12681660
$9.22 MSRP: $16.46
You Save: $7.24 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug, Spark Ignition; Spark Plug,Glow
- Replaces: 12622561
Fits the following Cadillac Models:
- ATS | 2013-2015 | Luxury, Performance, Premium | 6 Cyl 3.6 L FLEX
- CTS | 2010-2015 | Base, Luxury, Performance, Premium | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- SRX | 2010-2016 | Base, Luxury, Performance, Premium | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
- STS | 2010-2011 | Base | 6 Cyl 3.6 L GAS
- XTS | 2013-2019 | Base, Livery, Luxury, Platinum, Premium, Premium Luxury | 6 Cyl 3.6 L GAS
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Cadillac Glow Plug Part Number: 55506604
$24.20 MSRP: $43.23
You Save: $19.03 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Glow Plug Assembly-Diesel Engine Combustion Air Heatr; Control Module; Glow Plug, Spark Ignition
Fits the following Cadillac Models:
- Escalade | 2021-2023 | Luxury, Premium Luxury, Premium Luxury Platinum, Sport, Sport Platinum | 6 Cyl 3.0 L DIESEL
- Escalade ESV | 2021-2023 | Luxury, Premium Luxury, Premium Luxury Platinum, Sport, Sport Platinum | 6 Cyl 3.0 L DIESEL
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Cadillac Spark Plug Part Number: 12592619
$7.34 MSRP: $13.10
You Save: $5.76 (44%)
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug,Glow
Fits the following Cadillac Models:
- STS | 2006-2009 | V | 8 Cyl 4.4 L GAS
- XLR | 2006-2009 | V | 8 Cyl 4.4 L GAS
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Cadillac Spark Plug Part Number: 19301814
$9.53 MSRP: $17.02
You Save: $7.49 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug,Glow
- Replaces: 19256624, 12565996
Fits the following Cadillac Models:
- CTS | 2004-2006 | Base | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS
- STS | 2005 | Base | 6 Cyl 3.6 L GAS
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Cadillac Glow Plug Part Number: 12563554
$18.86 MSRP: $33.68
You Save: $14.82 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Glow Plug, Spark Ignition; Diesel Glow Plug
- Replaces: 25168651
Fits the following Cadillac Models:
- Escalade | 1999-2000 | Base | 8 Cyl 5.7 L GAS
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Cadillac Spark Plug Part Number: 12680076
$9.22 MSRP: $16.46
You Save: $7.24 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug,Glow
- Replaces: 12642791
Fits the following Cadillac Models:
- CTS | 2014-2015 | Vsport, Vsport Premium | 6 Cyl 3.6 L GAS
- XTS | 2014 | Vsport Platinum, Vsport Premium | 6 Cyl 3.6 L GAS
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Cadillac Spark Plug Part Number: 12672175
$9.31 MSRP: $16.62
You Save: $7.31 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug,Glow
Fits the following Cadillac Models:
- CT6 | 2019-2020 | Platinum, V | 8 Cyl 4.2 L GAS
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Cadillac Spark Plug Part Number: 12650283
$9.55 MSRP: $17.06
You Save: $7.51 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug,Glow
Fits the following Cadillac Models:
- CT5 | 2020-2024 | Premium Luxury, V | 6 Cyl 3.0 L GAS
- CT6 | 2016-2019 | Luxury, Platinum, Premium Luxury, Sport | 6 Cyl 3.0 L GAS
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Cadillac Spark Plug Part Number: 55504354
$11.44 MSRP: $20.42
You Save: $8.98 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug,Glow
Fits the following Cadillac Models:
- CT4 | 2020-2024 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
- CT5 | 2020-2024 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
- CT6 | 2019 | Luxury, Premium Luxury | 4 Cyl 2.0 L GAS
- XT4 | 2019-2024 | Luxury, Premium Luxury, Sport | 4 Cyl 2.0 L GAS
- XT5 | 2020-2023 | Luxury, Premium Luxury | 4 Cyl 2.0 L GAS
- XT6 | 2021-2024 | Luxury | 4 Cyl 2.0 L GAS
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Cadillac Spark Plug Part Number: 12688094
$10.33 MSRP: $18.44
You Save: $8.11 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug, Spark Ignition; Spark Plug,Glow
Fits the following Cadillac Models:
- CT4 | 2020-2024 | Premium Luxury, V | 4 Cyl 2.7 L GAS
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Cadillac Spark Plug Part Number: 12571533
Fits the following Cadillac Models:
- STS | 2005-2006 | Base | 8 Cyl 4.6 L GAS
- XLR | 2004-2008 | Base, Platinum | 8 Cyl 4.6 L GAS
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Cadillac Glow Plug Part Number: 5613826
Product Specifications
- Other Name: Plug-Glow; Diesel Glow Plug; Glow Plug,Glow
Fits the following Cadillac Models:
- DeVille | 1984-1985 | Base, Cabriolet, d'Elegance | 6 Cyl 4.3 L DIESEL, 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
- Eldorado | 1984-1985 | Base, Biarritz, Cabriolet, Touring | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
- Fleetwood | 1984-1985 | 75, 75 Formal, Base, Brougham, Brougham d'Elegance, d'Elegance | 6 Cyl 4.3 L DIESEL, 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
- Seville | 1984-1985 | Base, Elegante | 8 Cyl 4.1 L GAS, 8 Cyl 5.7 L DIESEL
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Cadillac Spark Plug Part Number: 12571535
Product Specifications
- Replaces: 12561466
Fits the following Cadillac Models:
- DTS | 2006-2011 | Base, Livery, Luxury, Platinum, Premium | 8 Cyl 4.6 L GAS
- STS | 2007-2010 | Base, Platinum | 8 Cyl 4.6 L GAS
- XLR | 2009 | Platinum | 8 Cyl 4.6 L GAS
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Cadillac Spark Plug Part Number: 12621258
Product Specifications
- Replaces: 12571164, 12563707, 12609877
Fits the following Cadillac Models:
- Escalade | 2007-2014 | Base, Hybrid, Hybrid Platinum, Luxury, Platinum, Premium | 8 Cyl 6.0 L FULL HYBRID EV-FLEX (FHEV), 8 Cyl 6.0 L FULL HYBRID EV-GAS (FHEV), 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
- Escalade ESV | 2010-2014 | Base, Luxury, Platinum, Premium | 8 Cyl 6.2 L FLEX
- Escalade EXT | 2007-2013 | Base, Luxury, Premium | 8 Cyl 6.2 L FLEX, 8 Cyl 6.2 L GAS
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1-20 of 28 Results

Cadillac Spark Plug

Choose OEM Spark Plug, you're making the optimal decision for superior quality and perfect performance. You can feel confident because each component goes through stringent quality checks. Every part is carefully built to comply with Cadillac's factory specifications. You'll enjoy a smooth, worry-free installation that fits just right. At ChevyPartsDeal.com, you'll find it easy to get top-quality OEM Cadillac Spark Plug. You can shop at highly competitive prices and protect your budget. All our genuine Cadillac parts include a dependable manufacturer's warranty. You'll also appreciate our straightforward return policy and swift delivery services for extra convenience.

Cadillac Spark Plug produces a clean, fast spark that maintains a strong and efficient combustion. Cadillac has been earning its heritage since 1902, and it continues to drive on with audacity. The company combines sharp body lines, clever cabin design and tough tuning of the drive to add some theatrics to everyday driving. Cadillac has enclosed occupants in plush leather, user-friendly screens and a ride that is whisper-quiet within. From the ultra-luxury Celestiq to sport crossovers, Cadillac continues to advance technology to make complex tasks seem easy. Quickly responsive infotainment and suspension tuning, which shrugs against broken pavement, make drivers feel seen, heard and relaxed. Voice guidance is spoken in a natural manner, enhanced displays are realistically displayed and on-air updates are delivered without requiring the drivers to attach anything. Even the long trip seems to take less time in silent cabins combined with sharp acceleration and responsive steering. A Spark Plug has threads penetrating deep into the cylinder head, which encircles a ceramic insulator over a copper or iridium center, closes up with a steel shell, and then directs the coil's fifty-thousand-volt punch across an electrode gap to trigger fuel combustion when needed. The deposits on the tip cause a half-baked Spark Plug which emits half-baked sparks resulting in rough idle, power dips and wastage of gasoline. Each Spark Plug must be replaced at the first tipping, the correct heat range as well as reach, and the engine instantly responds with smooth thrust.

Cadillac Spark Plug Parts and Q&A

Spark Plug
12681665
Q: How to replace a spark plug safely and effectively on Cadillac CTS?
A:
Shock the engine by turning off the ignition before extracting the Ignition Coil. Use compressed air to remove debris from the Spark Plug cavity after first cleaning the Spark Plug recess area to avoid damaging the Cylinder Head through the entry of dirt. Thread chasers function to eliminate contaminations that settle on threads. Leave the engine to cool down before Spark Plug removal because thread siege could occur. Use exclusively the spark plugs designated for your vehicle when installing a new plug since engine damage occurs when using plugs with different temperatures. All new and reconditioned spark plugs should undergo gap testing with round feeler gauges to confirm the specifications because improper gaps result in engine performance problems or engine damage. Use a thread chaser when installing the Spark Plug thread to ensure easy entry into the Cylinder Head and complete seat. Avoid cross-threading and overheating by using the thread chaser tool. Reinstall the Ignition Coil after you tighten the Spark Plug to 20 n.m (15 lb ft).
Glow Plug
97226202
Q: How to verify that the correct spark plug is installed and ensure its proper function on Cadillac Escalade?
A:
Driveability problems may occur when the wrong Spark Plug exists in the system so verify that the proper plug is in place. Use a Spark Plug with an appropriate heat range to prevent damage to both the engine and Spark Plug which might occur with either a cold plug causing fouling or hot plug triggering pre-ignition. The terminal p05 must be checked for damage by inspecting the terminal post for bends or breaks. Additionally, the post should stay stationary when twisting or pulling the terminal. Check the insulator for both sparkover and carbon track issues caused by electric charge travel from terminal post to ground while inspecting the Spark Plug boot and Spark Plug recess area in the Cylinder Head for liquid moisture as boot saturation leads to arcing problems. The proper operational condition of the insulator can be checked by examining it for potential electrical charge-allowing cracks that may produce arcing instead of reaching the electrodes (3, 4). Additionally test for possible arcing issues by verifying that the center electrode and side electrode terminal gap matches ignition system specifications to prevent impediments to Spark Plug functioning. According to ignition system specifications, adequate torque must be confirmed when installing spark plugs because improper torque can lead to operational deficits and excessive torque may cause the insulator to break. Check for tracking along the insulator tip instead of the center electrode section and verify the condition of side electrode and center electrode through a motion test; hear a rattling sound means internal damage exists while loose center electrode produces weak sparks. Inspection of electrodes (3, 4) must confirm they have no deposits between them while checking for worn off or missing platinum pads on the electrodes (3, 4) and verifying decreased fouling. Check the Cylinder Head Spark Plug recess to examine for debris since poor thread condition can impede full seating when installing the Spark Plug. A normal Spark Plug will exhibit brown to grayish-tan coloring with limited white powdery residue but carbon fouling will show itself as dry black carbon soot that stems from conditions like rich fuel mixtures, fuel injector leakage, high fuel pressure, obstructed air filters, incorrect combustion, reduced ignition output, weak coils, worn ignition wires, or misaligned Spark Plug gap. Slowing down the engine during light loads at idle periods prevents combustion deposits from burning fully off resulting in spark intensity loss together with deposit fouling caused by oil or coolant or some additives. However, solid powdery deposits normally do not alter spark intensity unless they create a coating on the electrode.