How to replace spark plugs safely and effectively on Cadillac CTS?

The essential equipment for Spark Plug replacement includes the Spark Plug centering sleeve (J 42068) among other tools. Begin the task by removing ignition coils and protect your eyes with safety glasses for avoiding dirt particles. Using low-pressure air clean the Spark Plug recess area to stop dirt or foreign material entry into the Cylinder Head because this could harm the engine or contaminate Cylinder Head threads thus the new plugs may not fit properly. A thread chaser must be used to eliminate any pollutants from the thread area. Secure the Spark Plug centering sleeve (J 42068) onto a 3/4 extension to shield the Spark Plug socket from possible damage that would crack the insulator of the plug. Warming up the engine first is essential else the plug threads may freeze up and become damaged. Look for signs of damage on the removed spark plugs then use a round feeler gauge to verify all new and reconditioned spark plugs have correct gaps since personnel handling can alter them. Operators should install factory-specified spark plugs on their vehicles since engine damage occurs when non-matching plugs of different temperature levels are used. A thread chaser helps secure complete plug seating into the Cylinder Head while preventing cross-threading or overheating and thread damage so take appropriate measures if necessary. Fit the spark plugs into the cylinder heads before tightening them to 25 n.m (18 lb ft) then install all ignition coils.

OEM Cadillac CTS Spark Plug

Ignition Spark Plug

Select Vehicle by Model
Select Vehicle by VIN

Select Vehicle by Model

Make

Model

Year

Select Vehicle by VIN

For the most accurate results, select vehicle by your VIN (Vehicle Identification Number).

10 Spark Plugs found

View related parts
Cadillac CTS Spark Plug Part Number: 12681665
$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
- Replaced by: 12681664
- Replaces: 25162555, 12607234, 25315018, 25162556, 19256067, 89017883
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2007 Cadillac CTS | V | 8 Cyl 5.7 L GAS, 8 Cyl 6.0 L GAS
View related parts
Cadillac CTS Spark Plug Part Number: 19300872
$7.57 MSRP: $13.52
You Save: $5.95 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug, Spark Ignition; Spark Plug,Glow
- Replaces: 12597464, 92220447
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2007-2009 Cadillac CTS | Base | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS
View related parts
Cadillac CTS 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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2010-2015 Cadillac CTS | Base, Luxury, Performance, Premium | 6 Cyl 3.0 L GAS, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
View related parts
Cadillac CTS Spark Plug Part Number: 12646780
$10.35 MSRP: $18.48
You Save: $8.13 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug,Glow
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | Luxury, Premium, Premium Luxury | 6 Cyl 3.6 L GAS
View related parts
Cadillac CTS Spark Plug Part Number: 12571165
$10.36 MSRP: $18.50
You Save: $8.14 (44%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug,Glow
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009-2015 Cadillac CTS | V | 8 Cyl 6.2 L GAS
View related parts
Cadillac CTS 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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | Vsport, Vsport Premium, Vsport Premium Luxury | 6 Cyl 3.6 L GAS
View related parts
Cadillac CTS Spark Plug Part Number: 12681659
$9.22 MSRP: $16.46
You Save: $7.24 (44%)
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug,Glow
- Replaces: 12647827, 12626906
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Cadillac CTS | Base, Luxury, Performance, Premium | 4 Cyl 2.0 L GAS
View related parts
Cadillac CTS 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
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2015 Cadillac CTS | Vsport, Vsport Premium | 6 Cyl 3.6 L GAS
View related parts
Cadillac CTS Spark Plug Part Number: 12642722
$9.28 MSRP: $16.58
You Save: $7.30 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug, Spark Ignition; Spark Plug,Glow
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2016-2019 Cadillac CTS | V | 8 Cyl 6.2 L GAS
View related parts
Cadillac CTS Spark Plug Part Number: 19301814
$9.53 MSRP: $17.02
You Save: $7.49 (45%)
Ships in 1-3 Business Days
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly; Spark Plug,Glow
- Replaces: 19256624, 12565996
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2004-2006 Cadillac CTS | Base | 6 Cyl 2.8 L GAS, 6 Cyl 3.6 L GAS

Cadillac CTS Spark Plug

Want to cut long-term maintenance and repair costs? Choose OEM Spark Plug. Those parts deliver top durability you can trust. On our site, you'll find a huge catalog of genuine Cadillac CTS parts. Prices are unbeatable, so you can keep more in your pocket. Every OEM Cadillac CTS Spark Plug includes a manufacturer's warranty. You can also get an easy return policy that keeps buying risk free. Fast delivery, get your car on the road quickly. It's simple to search, compare, and order. Stop guessing about quality or fit. Order today and save with parts that last.

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.

Cadillac CTS Spark Plug Parts Questions & Experts Answers

Spark Plug
12681665
Q: How to replace spark plugs safely and effectively on Cadillac CTS?
A:
The essential equipment for Spark Plug replacement includes the Spark Plug centering sleeve (J 42068) among other tools. Begin the task by removing Ignition Coils and protect your eyes with safety glasses for avoiding dirt particles. Using low-pressure air clean the Spark Plug recess area to stop dirt or foreign material entry into the Cylinder Head because this could harm the engine or contaminate Cylinder Head threads thus the new plugs may not fit properly. A thread chaser must be used to eliminate any pollutants from the thread area. Secure the Spark Plug centering sleeve (J 42068) onto a 3/4 extension to shield the Spark Plug socket from possible damage that would crack the insulator of the plug. Warming up the engine first is essential else the plug threads may freeze up and become damaged. Look for signs of damage on the removed spark plugs then use a round feeler gauge to verify all new and reconditioned spark plugs have correct gaps since personnel handling can alter them. Operators should install factory-specified spark plugs on their vehicles since engine damage occurs when non-matching plugs of different temperature levels are used. A thread chaser helps secure complete plug seating into the Cylinder Head while preventing cross-threading or overheating and thread damage so take appropriate measures if necessary. Fit the spark plugs into the cylinder heads before tightening them to 25 n.m (18 lb ft) then install all ignition coils.