How to replace the spark plugs in an engine on Chevrolet Impala?

The first step to replace spark plugs requires waiting for engine cool-down to stop potential seizure that would damage Cylinder Head threads. The Spark Plug recess area requires cleaning to stop foreign materials from entering the Cylinder Head because this contamination will block new Spark Plug threading and prevent a proper fit. The specified spark plugs must be employed exclusively because alternative temperature range plugs will lead to serious engine damage. Proceed with the removal of the air cleaner outlet duct and intake manifold cover then disconnect the Spark Plug Wires from the spark plugs on both the left and right sides. A round wire feeler gauge should be used to check the gap of both new and reconditioned spark plugs since their pre-set gaps could have changed from handling. Follow ignition system specifications to set gap distance for new spark plugs before installation with torque to 15 n.m (11 lb ft). After attaching both Spark Plug Wires reinstall the intake manifold cover before putting on the air cleaner outlet duct.

OEM Chevrolet Impala Spark Plug

Ignition Spark Plug

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8 Spark Plugs found

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Chevrolet Impala Spark Plug Part Number: 12681665
$9.22 MSRP: $16.46
You Save: $7.24 (44%)
Ships in 1-3 Business Days
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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:
- 2006-2008 Chevrolet Impala | SS | 8 Cyl 5.3 L GAS
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Chevrolet Impala Spark Plug Part Number: 12681662
$11.36 MSRP: $20.28
You Save: $8.92 (44%)
Ships in 1-3 Business Days
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Product Specifications
- Other Name: Spark Plug, Spark Ignition; Spark Plug,Glow
- Replaces: 12591131
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2006-2011 Chevrolet Impala | 50th Anniversary Edition, LS, LT, LTZ, Police | 6 Cyl 3.5 L FLEX, 6 Cyl 3.5 L GAS, 6 Cyl 3.9 L FLEX, 6 Cyl 3.9 L GAS
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Chevrolet Impala 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:
- 2012-2020 Chevrolet Impala | LS, LT, LTZ, Police, Premier | 6 Cyl 3.6 L BI-FUEL, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Chevrolet Impala Spark Plug Part Number: 12681658
$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: 12617309, 12590701, 12620540
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014 Chevrolet Impala | Eco | 4 Cyl 2.4 L MILD HYBRID EV-GAS (MHEV)
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Chevrolet Impala Spark Plug Part Number: 12680074
$9.55 MSRP: $17.06
You Save: $7.51 (45%)
ADD TO CART
Product Specifications
- Other Name: Spark Plug Assembly-Gasoline Engine Ignition; Spark Plug,Glow
- Replaces: 12627160
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2014-2019 Chevrolet Impala | LS, LT, LTZ | 4 Cyl 2.5 L FLEX, 4 Cyl 2.5 L GAS
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Chevrolet Impala Spark Plug Part Number: 92457960
$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; Spark Plug,Glow
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2015-2016 Chevrolet Impala | LS, LT, LTZ | 6 Cyl 3.6 L BI-FUEL, 6 Cyl 3.6 L FLEX
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Chevrolet Impala Spark Plug Part Number: 12621258
Product Specifications
- Replaces: 12571164, 12563707, 12609877
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 2009 Chevrolet Impala | SS | 8 Cyl 5.3 L GAS
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Chevrolet Impala Glow Plug Part Number: 5613826
Product Specifications
- Other Name: Plug-Glow; Diesel Glow Plug; Glow Plug,Glow
- Warranty: This genuine part is guaranteed by GM's factory warranty.
Fits the following Vehicles:
- 1984-1985 Chevrolet Impala | Base | 6 Cyl 3.8 L GAS, 6 Cyl 4.3 L GAS, 8 Cyl 5.0 L GAS, 8 Cyl 5.7 L DIESEL, 8 Cyl 5.7 L GAS

Chevrolet Impala Spark Plug

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Chevrolet Impala automobiles have Spark Plug that has the function of igniting the combustion process through creating a spark that ignites the mixture comprising of fuel and air in the chamber of combustion for the vehicle's Impala model. It comprise of shell made of metal, electrode and ceramic insulator and the efficiency of this component depends on high voltage. For quite some time now, different styles of the Spark Plug have been used in the Chevrolet Impala models, which include the types with multiple ground electrodes and the surface-discharge styles, which improve ignition, effectiveness and durability. Here again the kind of gap and heat range needed for the premier operation and to avoid damage to the engines must be maintained. It is also possible to get some clues about the engine state by examining The Spark Plug condition.

Chevrolet Impala Spark Plug Parts and Q&A

Spark Plug
12681665
Q: How to replace the spark plugs in an engine on Chevrolet Impala?
A:
The first step to replace spark plugs requires waiting for engine cool-down to stop potential seizure that would damage Cylinder Head threads. The Spark Plug recess area requires cleaning to stop foreign materials from entering the Cylinder Head because this contamination will block new Spark Plug threading and prevent a proper fit. The specified spark plugs must be employed exclusively because alternative temperature range plugs will lead to serious engine damage. Proceed with the removal of the air cleaner outlet duct and intake manifold cover then disconnect the Spark Plug Wires from the spark plugs on both the left and right sides. A round wire feeler gauge should be used to check the gap of both new and reconditioned spark plugs since their pre-set gaps could have changed from handling. Follow ignition system specifications to set gap distance for new spark plugs before installation with torque to 15 n.m (11 lb ft). After attaching both Spark Plug Wires reinstall the intake manifold cover before putting on the air cleaner outlet duct.