How to install Spark Plug(s) on engines other than the 4.7L V-8 on Jeep Grand Cherokee?

For the installation of the spark plugs for engines except for the 4.7L V-8, the recommendation is to apply silicone-based grease Mopar(R) Dielectric Grease # J8126688 on the spark plug end of the ignition coil rubber boots and the tops of the spark plugs. Using a gap gauging tool check the spark plug gap and adjust to specifications as provided. Manually insert the spark plug into the cylinder head to avoid cross-threading. Never drop the plugs into the wells, as this can break the electrodes. The spark plugs will always be tightened to the required torque because some engines use torque-sensitive spark plugs. If over-tightened, it can distort the plug and change the gap or crack the porcelain insulator. Use the correct torque for torque specifications. When the spark plugs are in, install the ignition coil(s) and attach the air filter tubing and air intake components to the top of the engine and the throttle body.

How to access and remove the Spark Plug located beneath its ignition coil on Jeep Grand Cherokee?

The spark plug for each coil is located under the ignition coil, and the coil must be removed to access the spark plug. Start with taking out the correct air filter tubing at the throttle body Prior to removing the ignition coil, apply compressed air to the base of the coil at the cylinder head. Before taking out the spark plug, spray the cylinder head opening with compressed air to prevent foreign material from falling into the combustion chamber. Remove the spark plug from the cylinder head using a good quality socket with a rubber or foam insert. Check the condition of the ignition coil O-ring and replace it if necessary. Lastly, check the status of the spark plug.

OEM Jeep Grand Cherokee Spark Plug

Ignition Spark Plug

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15 Spark Plugs found

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Jeep Grand Cherokee Spark Plug Part Number: SP149212AC
$13.17 MSRP: $19.20
You Save: $6.03 (32%)
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Product Specifications
- Other Name: Spark Plug Iridium Power; Spark Plug Quantity Of 8 Per Cylinder Head. 16 Total Per Engine.
- Replaces: 5149212AC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2012-2021 Jeep Grand Cherokee | Limited, Overland, SRT, SRT8, Summit | 8 Cyl 5.7 L GAS, 8 Cyl 6.4 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: 68303974AA
$9.28 MSRP: $13.35
You Save: $4.07 (31%)
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Product Specifications
- Other Name: High Ignitability Spark Plug; High Ignition Spark Plug
- Replaces: SPRC7PYCB4
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2002-2004 Jeep Grand Cherokee | Laredo, Limited, Overland, Special Edition, Sport | 4.7L V8, 8 Cyl 4.7 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: SPLZFR5C11
$9.12 MSRP: $13.35
You Save: $4.23 (32%)
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Product Specifications
- Other Name: High Ignitability Spark Plug; Iridium Long-Life; Platinum TT; Iridium Power; Iridium TT.
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2009-2013 Jeep Grand Cherokee | Laredo, Limited, Overland, Overland Summit | 8 Cyl 5.7 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: SP000ZFR5N
$11.23 MSRP: $16.45
You Save: $5.22 (32%)
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Product Specifications
- Other Name: Plug; Spark Plug Standard
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2004 Jeep Grand Cherokee | Laredo, Limited, Special Edition | 6 Cyl 4.0 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: 68303913AA
$11.40 MSRP: $16.70
You Save: $5.30 (32%)
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Product Specifications
- Other Name: Plug; Spark Plug Iridium Power; Spark Plug Iridium TT
- Replaces: SP303913AA, SPRE14MCC4, 56028374AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2008 Jeep Grand Cherokee | Limited, Overland | 5.7L V8, 8 Cyl 5.7 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: 68303918AA
$12.54 MSRP: $18.35
You Save: $5.81 (32%)
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Product Specifications
- Other Name: Plug
- Replaces: 3555557310, SPRC12MCC4
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1999-2007 Jeep Grand Cherokee | 65th Anniversary Edition, Laredo, Limited, Overland, Special Edition, Sport | 4.7L V8, 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: SP143877AB
$20.52 MSRP: $30.00
You Save: $9.48 (32%)
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Product Specifications
- Other Name: High Ignitability Spark Plug; Iridium Long-Life; Iridium Power; Iridium TT.
- Replaces: SP143877AA, 68143877AB
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2014-2023 Jeep Grand Cherokee | High Altitude, Limited, Limited X, Overland, Summit, Summit Reserve, Trailhawk | 5.7L V8, 8 Cyl 5.7 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: 68292346AA
$20.52 MSRP: $30.00
You Save: $9.48 (32%)
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Product Specifications
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2022-2025 Jeep Grand Cherokee | 30th Anniversary 4xe, 4xe, Anniversary Edition 4xe | 4 Cyl 2.0 L PLUG-IN HYBRID EV-GAS (PHEV)
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Jeep Grand Cherokee Spark Plug Part Number: SPZFR6F11G
$6.44 MSRP: $9.25
You Save: $2.81 (31%)
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Product Specifications
- Other Name: High Ignitability Spark Plug; Double Platinum, Iridium Power, Platinum TT, Iridium TT, Standard.
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2005-2010 Jeep Grand Cherokee | 65th Anniversary Edition, Laredo, Limited | 6 Cyl 3.7 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: SPLZTR5A13
$11.60 MSRP: $16.70
You Save: $5.10 (31%)
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Product Specifications
- Other Name: Spark Plug Iridium Power; Spark Plug Iridium TT
- Replaces: SPLCTR5A13, SPLZ0050AA, 5037404AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2006-2010 Jeep Grand Cherokee | SRT8 | 6.1L V8, 8 Cyl 6.1 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: 68304022AA
$11.60 MSRP: $16.70
You Save: $5.10 (31%)
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Product Specifications
- Other Name: Plug
- Replaces: SP0RC12ECC
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 1999-2003 Jeep Grand Cherokee | Laredo, Limited, Sport | 6 Cyl 4.0 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: SP149125AF
$24.61 MSRP: $31.25
You Save: $6.64 (22%)
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Product Specifications
- Replaces: SP149125AE, 5149125AD, 5149125AE, SP149125AD
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2011-2021 Jeep Grand Cherokee | Laredo, Limited, Overland, Overland Summit, Summit | 3.6L V6, 6 Cyl 3.6 L FLEX
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Jeep Grand Cherokee Spark Plug Part Number: SP225755AB
$22.80 MSRP: $33.35
You Save: $10.55 (32%)
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Product Specifications
- Other Name: Spark
- Replaces: 68225755AA, 68225755AB, SP225755AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2016-2025 Jeep Grand Cherokee | 75th Anniversary, 80th Anniversary, Altitude, Altitude X, High Altitude, Laredo, Laredo E, Laredo X, Limited, Limited X, Overland, Summit, Summit Reserve, Trailhawk, Upland | 3.6L V6, 6 Cyl 3.6 L FLEX, 6 Cyl 3.6 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: SP196724AC
$11.40 MSRP: $16.70
You Save: $5.30 (32%)
ADD TO CART
Product Specifications
- Other Name: Spark Plu
- Replaces: 68196724AA, SP196724AB, SP196724AA
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2018-2021 Jeep Grand Cherokee | Trackhawk | 6.2L V8, 8 Cyl 6.2 L GAS
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Jeep Grand Cherokee Spark Plug Part Number: SPFR8TE2AA
$9.28 MSRP: $13.35
You Save: $4.07 (31%)
Product Specifications
- Other Name: Spark Plug Iridium Long-Life; Power; Platinum TT; Iridium TT; Standard.; Spark Plug See Group 8
- Warranty: This genuine part is guaranteed by Mopar's factory warranty.
Fits the following Vehicles:
- 2008-2009 Jeep Grand Cherokee | Laredo, Limited | 8 Cyl 4.7 L FLEX, 8 Cyl 4.7 L GAS

Jeep Grand Cherokee Spark Plug

Choose OEM Spark Plug that meet Jeep factory standards. Jeep designs and tests every component for precision and durability. Each Spark Plug follows strict manufacturing steps to lock in quality and fit. If your Jeep Grand Cherokee matters to you, OEM parts make the smart choice. You'll get the exact look, feel, and performance you expect. Shop genuine Grand Cherokee parts at the highly competitive prices online. Enjoy a manufacturer's warranty, a hassle-free return policy, and rapid delivery. No more guesswork with off brands. Get genuine parts with exact fit and true factory performance. Shop with confidence today at JeepPartsDeal.com.

The Spark Plug of Jeep Grand Cherokee is responsible for generating ignition sparks for firing up the gasoline engine. The Spark Plug is an equipment that is housed in a metal threaded shell that comes with a ceramic insulator. The central electrode of the Spark Plug is positioned in the cylinder, which creates a gap between the central electrode and side electrode. The ignition coil's high voltage jumps this gap and causes a discharge just like lightning which ignites the compressed an air-fuel mixture which pushes the piston down on power stroke. At idle, the plug can fire hundreds of times per minute, and at cruising speed, it can exceed a thousand firings per minute; and it provides power for the Jeep engine for many miles. When the size of gap and heat characteristics are right, then the device burns the mixture properly and prevents damage to engine parts. Each cylinder in the Grand Cherokee has a single Spark Plug, which helps maintain the timing of the ignition, while also ensuring the component is solid enough to withstand the pressure, heat and electrical requirement of a modern-day Jeep Grand Cherokee. Over time, the electrodes of the Spark Plug wear out, so replacing the Spark Plug at recommended intervals keeps the ignition system reliable for consistent performance.

Jeep Grand Cherokee Spark Plug Parts and Q&A

Spark Plug
SPZFR6F11G
Q:
How to install Spark Plug(s) on engines other than the 4.7L V-8 on Jeep Grand Cherokee?
A:
For the installation of the spark plugs for engines except for the 4.7L V-8, the recommendation is to apply silicone-based grease Mopar(R) Dielectric Grease # J8126688 on the spark plug end of the ignition coil rubber boots and the tops of the spark plugs. Using a gap gauging tool check the spark plug gap and adjust to specifications as provided. Manually insert the spark plug into the cylinder head to avoid cross-threading. Never drop the plugs into the wells, as this can break the electrodes. The spark plugs will always be tightened to the required torque because some engines use torque-sensitive spark plugs. If over-tightened, it can distort the plug and change the gap or crack the porcelain insulator. Use the correct torque for torque specifications. When the spark plugs are in, install the ignition coil(s) and attach the air filter tubing and air intake components to the top of the engine and the throttle body.
Spark Plug
SPLZTR5A13
Q:
How to access and remove the Spark Plug located beneath its ignition coil on Jeep Grand Cherokee?
A:
The spark plug for each coil is located under the ignition coil, and the coil must be removed to access the spark plug. Start with taking out the correct air filter tubing at the throttle body Prior to removing the ignition coil, apply compressed air to the base of the coil at the cylinder head. Before taking out the spark plug, spray the cylinder head opening with compressed air to prevent foreign material from falling into the combustion chamber. Remove the spark plug from the cylinder head using a good quality socket with a rubber or foam insert. Check the condition of the ignition coil O-ring and replace it if necessary. Lastly, check the status of the spark plug.