best spark plugs for 4.0 jeep
If you need the best quality spark plug for the 4.0 Jeep, you will find all the necessary information to choose the right product here.
First of all, you need to understand why we use a spark plug in our vehicles. A spark plug provides sparks to ignite air-fuel mixtures. This is the primary function of a spark plug.
You should not keep a bad spark plug in your car because it can cause overheating, rough running, power loss, or even engine failure.
There are some spark plugs in the market, but we will discuss only 10 best spark plugs for 4.0 jeep.
Let’s take a look.
5 best spark plugs for 4.0 jeep:
1. Champion RC12ECC (438) Copper Plus Replacement Spark Plug, (Pack of 1)
About the item:
The Champion is a good spark plug for the 4.0 Jeep. Compatibility is the first checklist before buying a spark plug. You don’t need to worry about this point. And the second point is its feature.
This is a hot product at the lowest price with a lot of useful features. Some people change this kit after 30k. It would be a perfect solution for them.
Everyone wants good performance and a longer lifespan. In this criteria, this is an excellent unit because the product is constructed with the copper core electrode that ensures better performance and longer life.
Another good feature is the product is coated with the Patented Ultraseal that is safe from corrosion. On the contrary, this is an SAE standard and ISO certified product, so it works well.
Pros:
- Copper core electrode
- Patented Ultraseal coated
- Quicker ignition
CONS:
- The seller is not conscious of the order. Some people got 5 products out of 6
Product information:
- Brand: Champion
- Core Material: Copper
- Top Material: Metal
2. NGK (3459) ZFR5N V-Power Spark Plug, Pack of 1
About the item:
NGK is going to be an exceptional spark plug modification for your Jeep because of its features. The build quality of this plug is excellent. The product is certified by OEM that ensures the premium quality of the equipment.
If you are thinking about the NGK brand, this model is recommended for a 4.0 engine. Why should you go for NGK? It is because of its quality and the brand’s reliability.
This item is made with trivalent metal plating that increases its lifespan and makes the item more durable. A good spark plug can increases fuel economy. So you can pick this item for better MPG and engine safety.
Pros:
- Betters fuel economy
- Resistant to corrosion
- Reduces emissions
- Very easy installation
Cons:
- None
Product information:
- Brand: NGK
- Item Weight: 1.6 ounces
- Item model number: ZFR5N
3. Autolite XP985 Iridium XP Spark Plug, Pack of 1
About the item:
Autolite XP985 Iridium XP Spark Plug has been designed with 0.6mm finewire that you can compare with 0.8mm finewire. In this Iridium XP sparks plug, they use the most advanced Autolite’s technology ever.
This new design improves overall ignitability and optimum performance. The item doesn’t design specifically for the Jeep 4.0 engine, but you can use it for your Jeep because it is specially made for heavy-duty engines. It works great for 4.0 Jeeps.
Build quality of this item is excellent that makes this product more reliable for more extended use. This is a corrosion-free unit that is very easy to install.
Pros:
- Wear Resistant and better durability
- Constructional Benefit
- Versatile product
- Greater Ignition
Cons:
- Difficult to gap
Product information:
- Brand: Fram
- Item Weight: 1.12 ounces
- Product Dimensions: 1 x 1 x 3.38 inches
4. 6 pcs NGK V-Power Spark Plugs for 1997-2006 Jeep TJ 4.0L L6 – Engine Kit Set Tune Up
About the item:
This is another NGK V-Power Spark Plugs that comes with 6 pcs made for 4.0 Jeep engines. This is a V-styled channel plug, and the ignition point is near the air/fuel mixture that ensures faster ignition.
This type of spark plug provides better performance than the nickel-type spark plugs. This is simple to install.
Another good side of this V-power plug takes less power than nickel-electroplated plugs for producing sparks.
Pros:
- Spark plug tip point near to air/fuel mixture
- Cold-rolled threads
- 6 pcs at a reasonable price
Cons:
- Getting overhead quickly
Product information:
- Manufacturer: Sixity Auto
- Brand: Sixity Auto
- Manufacturer Part Number: 4024180432
5. Champion RC12LYC (412) Copper Plus Replacement Spark Plug, (Pack of 1)
About the item:
There is another good product that comes from the Champion brand. They use Copper Core Center Electrode in this plug that can keep heat range under control.
If you are looking for such a product that offers a longer lifespan at a low price, it could be a perfect choice for you.
The product is corrosion resistive, and they use a Patented Ultraseal coated shell that makes this product more convenient.
ISO certified and SAE standards equipment, so you don’t need to worry about building quality and performance.
Pros:
- Features and Benefits
- Corrosion Resistant
- ISO and SAE standards equipment
- Better performance
- Smooth Action
Cons:
- Not recommended for electronic distributor-based ignition systems
Product information:
- Brand: Champion
- Core Material: Copper
- Top Material: Metal
6. NGK V-Power Spark Plug ZFR5N (6 Pack) for JEEP GRAND CHEROKEE LIMITED 1999-2004 4.0L/242
About the item:
We take another NGK automotive parts for JEEP GRAND CHEROKEE LIMITED (1999-2004) 4.0 engine. This is also a 6 pcs package. And the product is a V-Power style that enhances ignition systems.
They use the Trivalent plating method that works great against corrosion and seizing. A simple installation system makes your job more enjoyable.
It delivers fast and smooth ignition that actually improve fuel economy and lower emission. The build quality makes sure safety from electrical and chemical wear.
Pros:
- Good for Grand Cherokee 4.0 litre
- Perfect plug for copper core
- These are what Jeeps like
CONS:
- Not suitable for all Jeep model
Product information:
- Manufacturer: NGK
- Brand: NGK
- Manufacturer Part Number: DZNGK-37351
7. Autolite XP985-4PK Iridium XP Spark Plug, Pack of 4
About the item:
If you already got a good product for your Jeep model, you don’t need more. This product is not for all the jeep model. It is perfect for Cherokee XJ 4.0 Jeep launched from 1983 to 2001 in the USA market.
They use all advanced technology that ensures better performance and safety of your engine. The plug is designed with 0.6mm wire and premium platinum side wires for producing faster ignition.
This system also enhances engine performance. Corrosion-free thread ensures hassle-free installation and removal features.
Pros:
- Electroplated with nickel
- Copper and platinum core
- Enhanced side wire alloy
CONS:
- Difficult to gap
Product information:
- Brand: Autolite
- Model: XP985-4PK
- Item Weight: 6.4 ounces
- Package Dimensions: 4.2 x 3.6 x 1.1 inches
8. 6 pcs NGK V-Power Spark Plugs for 1999-2004 Jeep Grand Cherokee 4.0L L6 – Engine Kit Set Tune Up
About the item:
This is a nickel-tipped spark plug that is compatible with the 1999-2004 Jeep Grand Cherokee 4.0 engine.
NGK offers 6 pcs at a reasonable price. It creates quicker ignition of air/fuel mixture.
The thread of this plug is insulator design, and it is significantly coated, which ensures easy installation and removal.
Another good feature is the cold-rolled thread and prevents damage to the cylinder head. The solid copper core with V-Power can easily emit heat.
Pros:
- Cold-rolled threads
- Trivalent metal plating
CONS:
- Sort lifespan for cooper
Product information:
- Manufacturer: Sixity Auto
- Brand: Sixity Auto
- Manufacturer Part Number: 4024188916
9. Jeep Wrangler Grand Cherokee 4.0L Set Of Six (6) Spark Plugs Mopar OEM
About the item:
Another product from the Mopar brand is that you can use your Jeep Cherokee 4.0L engine from 2000 to 2001. The product is also compatible with Jeep Grand Cherokee from 1999 to 2006 and Jeep Wrangler from 1999 to 2006. This is a versatile spark plug that you can use for almost all Jeep’s models.
For installing a spark plug, you need a proper gap. You should check the gap before installing it. This item’s thread is durable and rust-resistant, which helps you remove it quickly after a long time.
Pros:
- Nickel-plated spark plug
- Long lusting ceramic insulator
- Meticulous care for durability
CONS:
- None
Product information:
- Manufacturer: Mopar
- Brand: Mopar
- Item model number: SP000ZFR5N.6
10. E3 Spark Plugs E3.58 Automotive Spark Plug (1)
About the item:
It will be a good option for Cherokee 4.0, 96 models. It is also good for the 1996 jeep wrangler 4.0 engine. This is one of the best plugs for its exclusive features like better power, less fuel consumption, and enhanced hydrocarbon emissions.
The main contact point of the ignition system is corrosion-free. It has an insulator tip that protects the vehicle’s engine from any negative side effects of your engine.
The design makes it more durable than other items. They feature a full-size centre electrode that delivers great performance for 100k or five years.
Pros:
- Power increased from 4% to 6%
- Fuel efficiency improved from 4% to 5%
- Reduced emissions
CONS:
- Not for all 4.0 engine
Product information:
- Brand E3 Spark Plugs
- Top Material Alloy Steel
Final Verdict:
If this tiny automotive part does not work correctly, your Jeep might not start. It provides sparks to the combustion chamber for ignition. Different plugs are designed for different Jeep’s models. So, you have to pick the right plug that is compatible with your Jeep model.