How are spark plugs replaced on Cadillac CTS?

On V6 models, the spark plugs are in the center of the valve covers, while those of VB models are to the left and right of the engine. Equipment required for spark plug replacement includes a definite spark plug socket that fits a ratchet, various bars, and a gap gauge for testing gaps of the new spark plug, with a torque wrench advisable for a tightness of the plug. New plugs should be bought ahead of time, installed using a gap convenient for the engine type, and put in one by one to acquire the correct plug for the singular engine. Therefore it is recommended to let the engine to cool before any plugs are removed in order not to harm the aluminum cylinder heads and inspect the new plugs for defective ones as well as their gaps. The gap is controlled by fitting the correct thickness of gauge into the tip of the plug, before the wire can be slid between the electrodes it should just drag slightly. All of the ignition coils for V6 engines are located underneath the upper intake manifold and as usual begin by having to remove the upper intake manifold to accesses all of the coils for the engine, next, unplug the wiring harness from each coil, and unscrew the retention bolts which releases the ignition coils from the valve cover. On V8 engines, with the engine off and cooled down: pull on the spark plug wire boot only and twist if needed to remove it from one of the plugs. In case compressed air is available, it should be used to blow of the spark plug hole to see that no dirt falls into the cylinder. In turn the spark plug socket is placed over the plug and unscrewed using a ratchet and extension and taken off in the anticlockwise direction. About half a thread of anti-seize compound should be spread on the threads of the spark plug and a new plug screwed in as tightly as it can be turned by hand and then with the help of a torque wrench or a ratchet. A short length of rubber hose can be used in helping in threading of the plug to avoid damaging the threads of the hole. This has to be done for the remaining spark plugs then screw back the ignition coil and join the wiring for the V6 vehicles while inspecting the boot and the wire for any signs of damage before joining the plug wire to the new spark plug of the V8 vehicles by twisting it until it comes into contact.

Genuine Cadillac CTS Spark Plug

Ignition Spark Plug

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11 Spark Plugs found

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Cadillac CTS Spark Plug Assembly, Gasoline Engine Ignition
Part Number: 12681660
$8.81 MSRP: $15.80
You Save: $6.99 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug Assembly, Gas Eng Ign; Spark Plug
- Replaces: 12622561
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2015 Cadillac CTS | 2 DOOR COUPE, 4 DOOR, 4 DOOR (RHD), 4 DOOR PERFORMANCE SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN, 4 DOOR SEDAN(RHD), 4 DOOR STATION WAGON, 4 DOOR STATION WAGON(RHD), 4 DOOR WAGON, 4 DOOR WAGON(RHD) | 6 Cyl 3.0L, 6 Cyl 3.6L
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Cadillac CTS Spark Plug Asm
Part Number: 12646780
$8.99 MSRP: $16.12
You Save: $7.13 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SPARK PLUG,Glow; Spark Plug
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS Spark Plug Asm
Part Number: 12571165
$9.83 MSRP: $17.64
You Save: $7.81 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SPARK PLUG,Glow; Spark Plug
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2015 Cadillac CTS | V 2 DOOR COUPE, V 4 DOOR, V 4 DOOR SEDAN, V 4 DOOR WAGON | 8 Cyl 6.2L
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Cadillac CTS SPARK PLUG ASM,GAS ENG IGN
Part Number: 19417055
$9.11 MSRP: $16.34
You Save: $7.23 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Cadillac CTS | V 4 DOOR | 8 Cyl 5.7L, 8 Cyl 6.0L
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Cadillac CTS Spark Plug Asm
Part Number: 19300872
$7.24 MSRP: $12.98
You Save: $5.74 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SPARK PLUG,Glow; Spark Plug
- Replaces: 12597464, 92220447
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2005-2009 Cadillac CTS | 4 DOOR, 4 DOOR RHD, V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.6L
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Cadillac CTS Spark Plug Asm
Part Number: 12662396
$9.01 MSRP: $16.16
You Save: $7.15 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SPARK PLUG,Glow; Spark Plug
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2019 Cadillac CTS | 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L
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Cadillac CTS Spark Plug Asm
Part Number: 19308036
$7.36 MSRP: $13.20
You Save: $5.84 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SPARK PLUG,Glow
- Replaces: 88901012, 19238471, 19250978
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2003-2004 Cadillac CTS | 4 DOOR, 4 DOOR RHD | 6 Cyl 3.2L
View related parts
Cadillac CTS Spark Plug Assembly, Gasoline Engine Ignition
Part Number: 12681659
$8.81 MSRP: $15.80
You Save: $6.99 (45%)
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly, Gas Eng Ign; Spark Plug
- Replaces: 12647827, 12626906
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Cadillac CTS | 4 DOOR PERFORMANCE SEDAN, 4 DOOR PLUS SEDAN, 4 DOOR PREMIUM SEDAN, 4 DOOR SEDAN | 4 Cyl 2.0L
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Cadillac CTS Spark Plug Asm
Part Number: 12642722
$8.88 MSRP: $15.92
You Save: $7.04 (45%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: SPARK PLUG,Glow; Spark Plug
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | 4 DOOR V-SERIES SEDAN | 8 Cyl 6.2L
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Cadillac CTS Spark Plug Asm
Part Number: 19301814
$9.11 MSRP: $16.34
You Save: $7.23 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: SPARK PLUG
- Replaces: 19256624, 12565996
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2005 Cadillac CTS | 4 DOOR, 4 DOOR RHD, 4 DOOR(RHD), V 4 DOOR | 6 Cyl 2.8L, 6 Cyl 3.6L
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Cadillac CTS Spark Plug Assembly, Gas Eng Ign
Part Number: 12680076
$8.81 MSRP: $15.80
You Save: $6.99 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug
- Replaces: 12642791
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014 Cadillac CTS | 4 DOOR PREMIUM SEDAN | 6 Cyl 3.6L

Cadillac CTS Spark Plug

Another component that is extremely vital in the gasoline engines of CTS cars is the spark plug our main focus for this paper since it is responsible for making a primary spark that sparks the f/u air mixture. This process increases the effectiveness of the combustion cycle and results of the lower of the exhaust emissions and the improves the performance of the engine. Cadillac CTS Spark Plug constitutes of the following parts, the central electrode, side electrode and ceramic insulator which form the spark gap to ignite the fuel. Different spark plugs have been used at different Cadillac CTS versions including spark plugs with multiple grounds and SD configurations. These variations are directed towards enhancing ignition performance and equally increasing the durability of the Spark Plug. Maintenance of the gap sizes and heat range is very important so as to achieve the premier results and avoid the damages.

Each OEM Cadillac CTS Spark Plug we offer is competitively priced and comes with the assurance of the manufacturer's warranty for the part. Furthermore, we guarantee the speedy delivery of your orders right to your doorstep. Our hassle-free return policy is also in place for your peace of mind.

Cadillac CTS Spark Plug Parts Questions & Experts Answers

Spark Plug Asm
19308036
Q: How are spark plugs replaced on Cadillac CTS?
A: On V6 models, the spark plugs are in the center of the valve covers, while those of VB models are to the left and right of the engine. Equipment required for spark plug replacement includes a definite spark plug socket that fits a ratchet, various bars, and a gap gauge for testing gaps of the new spark plug, with a torque wrench advisable for a tightness of the plug. New plugs should be bought ahead of time, installed using a gap convenient for the engine type, and put in one by one to acquire the correct plug for the singular engine. Therefore it is recommended to let the engine to cool before any plugs are removed in order not to harm the aluminum cylinder heads and inspect the new plugs for defective ones as well as their gaps. The gap is controlled by fitting the correct thickness of gauge into the tip of the plug, before the wire can be slid between the electrodes it should just drag slightly. All of the ignition coils for V6 engines are located underneath the upper intake manifold and as usual begin by having to remove the upper intake manifold to accesses all of the coils for the engine, next, unplug the wiring harness from each coil, and unscrew the retention bolts which releases the ignition coils from the valve cover. On V8 engines, with the engine off and cooled down: pull on the spark plug wire boot only and twist if needed to remove it from one of the plugs. In case compressed air is available, it should be used to blow of the spark plug hole to see that no dirt falls into the cylinder. In turn the spark plug socket is placed over the plug and unscrewed using a ratchet and extension and taken off in the anticlockwise direction. About half a thread of anti-seize compound should be spread on the threads of the spark plug and a new plug screwed in as tightly as it can be turned by hand and then with the help of a torque wrench or a ratchet. A short length of rubber hose can be used in helping in threading of the plug to avoid damaging the threads of the hole. This has to be done for the remaining spark plugs then screw back the ignition coil and join the wiring for the V6 vehicles while inspecting the boot and the wire for any signs of damage before joining the plug wire to the new spark plug of the V8 vehicles by twisting it until it comes into contact.

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