Introducing our complete guide to Dodge Charger spark plugs! Dodge Charger spark plugs are essential components that ensure optimal engine performance. They ignite the air-fuel mixture within the combustion chambers, creating powerful explosions that drive the pistons and move your muscle car.
Although often overlooked, properly maintaining spark plugs is crucial to avoid potential issues. It is also vital to regularly replace the spark plugs in your Dodge Charger to maintain optimal combustion and preserve the renowned power and performance that Dodge is famous for.
We will provide you with a wealth of knowledge about the Dodge Charger spark plugs in this comprehensive guide. We’ll cover everything from the basics to more advanced tips on selecting, replacing, and maintaining them. Whether you’re an experienced Charger enthusiast or a new owner, this blog post will provide the information and tips to handle spark plug replacements easily.
Spark Plugs — Learn the Fundamentals
Spark plugs are straightforward devices at their core. Their components include a metal shell, a ceramic insulator, a central electrode, and a ground electrode.
Even though spark plugs may seem simple, they play a vital role in the combustion process that propels your Dodge Charger’s engine. Their main role is to generate the spark that sets off the air-fuel mixture in the engine’s combustion chambers.
Here are the key functions of spark plugs:
Combustion initiation
The spark from the spark plug initiates the combustion process by providing the initial energy required to start the chemical reaction between the air and fuel. This combustion releases energy in the form of heat, which is then converted into mechanical energy through the movement of the pistons.
Heat transfer
Spark plugs are designed to transfer heat from the combustion chamber into the cooling system. This helps prevent excessive heat buildup, which can lead to pre-ignition or engine damage.
Sealing
The spark plug forms a sealed connection between the combustion chamber and the engine’s cylinder head, preventing the leakage of compressed gases and maintaining the required pressure for efficient combustion.
Types of Spark Plugs
While all spark plugs have the same fundamental purpose, they come in various types and configurations, each designed to meet specific performance requirements and operating conditions. The most common types include:
Copper Spark Plugs
These traditional spark plugs feature a copper core and are known for their durability and affordability. They are suitable for most standard applications but require more frequent replacement than the other types.
Platinum Spark Plugs
By incorporating a platinum tip on the central electrode, these spark plugs have improved resistance to erosion and longer service life than copper plugs. They are often recommended for high-performance engines or vehicles driven in demanding conditions.
Iridium Spark Plugs
Iridium spark plugs are known for their exceptional durability and longevity. They feature an iridium alloy tip on the central electrode. These high-end plugs are typically more expensive but provide superior performance and longer replacement intervals, making them the most popular choice for modern engines.
What are the symptoms of a bad spark plug?
Symptoms of bad spark plugs include engine misfiring, rough idle, reduced fuel economy, lack of acceleration, hard starting, illuminated check engine light, and higher emissions levels. Replacing worn or fouled spark plugs can restore proper engine operation and performance.
Factors to consider when Choosing a Dodge Charger Spark Plug
Now that you are familiar with the fundamentals and types of spark plugs, let us look at the factors you should consider when buying them. When choosing Dodge Charger spark plugs, several factors must be considered to ensure optimal performance, fuel efficiency, and durability. Here are the key factors to keep in mind:
Heat Range
The heat range of a spark plug is determined by how effectively it can transfer heat from the combustion chamber to the cooling system. The operating temperature of a spark plug is a vital aspect to consider. A spark plug with a different heat range can affect how efficiently it dissipates heat. A colder heat range allows for more efficient heat dissipation, while a hotter one is less efficient.
Spark Plug Gap
The spark plug gap—or electrode gap—is the distance between the electrodes. This gap is where the electrical spark jumps to initiate combustion. The recommended Dodge Charger spark plug gap typically varies between 0.031 inches (0.8mm) and 0.051 inches (1.3mm).
Maintaining the correct gap size is essential for proper ignition and combustion efficiency. A too-small gap can lead to misfiring or incomplete combustion, while a too-large gap can cause a weak or erratic spark, resulting in poor performance and increased emissions.
Spark Plug Design
The spark plug’s electrode design is vital in ignition efficiency and durability. Electrode design affects spark intensity, heat transfer, and wear resistance, making it important for driving conditions and engine requirements.
A robust electrode design is essential for reliable ignition and optimal performance in the Dodge Charger engine, which operates under high boost pressures and extreme temperatures. Choosing iridium is strongly advised because of its outstanding construction quality and dependability.
Compatibility
Compatibility is another key factor when selecting spark plugs, particularly for specific vehicle makes and models. It is necessary to buy spark plugs made specifically for the Dodge Charger. They come in various thread sizes, reaches, and seat configurations.
Using incompatible plugs can lead to cross-threading, improper seating, or pre-ignition issues. Consulting the vehicle’s owner’s manual or service specifications can help you choose the right plugs.
Dodge Charger Spark Plug Options In the Market
Up until now, we have understood the fundamentals of spark plugs, including their workings, types, and the factors to consider when buying a spark plug for your Dodge Charger. Next, we will analyze major spark plug options in the market.
Genuine MOPAR
Genuine MOPAR spark plugs specifically crafted for Dodge Charger models guarantee peak performance and seamless compatibility. They are designed to meet rigorous OEM quality benchmarks and assure reliability and durability.
By opting for genuine MOPAR spark plugs, you safeguard your Charger’s original performance attributes, such as fuel efficiency and engine prowess. Genuine MOPAR plugs deliver peace of mind and can be easily accessed through authorized dealerships and reputable online vendors. It ensures you’re equipped with authentic components tailored particularly for your iconic muscle sedan.
Aftermarket Dodge Charger Spark Plug
Aftermarket spark plugs offer Dodge Charger owners an array of choices, including different brands, materials, and designs. While they are more budget-friendly prices compared to genuine MOPAR parts, their quality standards and specifications may vary.
Although certain aftermarket spark plugs offer performance enhancements like better ignition efficiency or extended longevity, outcomes can differ based on the product. Aftermarket spark plugs offer flexibility amidst various driving needs, and drivers can opt for them for customization, low budget, or targeted performance objectives.
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Best Dodge Charger Spark Plugs: Our Recommendations
Genuine MOPAR
Genuine MOPAR spark plugs are our first recommendation for Dodge Charger owners who want top-notch reliability and performance. These plugs are finely crafted to meet Dodge’s high standards, ensuring your engine runs smoothly and efficiently.
You can find them at authorized dealerships or trusted online stores, like Newparts.com, giving you confidence that you’re getting the real deal for your Charger’s optimal performance and durability.
| Genuine Mopar Spark Plug Recommendation | ||||
| Year | Model Generation | Engine | Spark Plug Gap (mm) | Part Number |
| 2006-2008 | Dodge Charger LX | 2.7L | 1.30 (0.051 in.) | 68304018AA |
| 3.5L | 1.30 (0.051 in.) | SZFR5LP13G | ||
| 5.7L | 1.00 (0.040 in.) | 68303913AA | ||
| 6.1L | 1.30 (0.051 in.) | SPLZTR5A13 | ||
| 2009-2010 | Dodge Charger LX | 2.7L | 1.30 (0.051 in.) | 68304018AA |
| 3.5L | 1.30 (0.051 in.) | SZFR5LP13G | ||
| 5.7L | 1.00 (0.040 in.) | SPLZFR5C11 | ||
| 6.1L | 1.30 (0.051 in.) | SPLZTR5A13 | ||
| 2011-2014 | Dodge Charger LD | 3.6L | 1.10 (0.043 in.) | SP149125AF |
| 5.7L | 1.10 (0.043 in.) | SPLZFR5C11 – Recommended | ||
| SP143877AB | ||||
| 6.4L | 1.10 (0.043 in.) | SP149212AC | ||
| 2015-2022 | Dodge Charger LD | 3.6L | 1.10 (0.043 in.) | SP149125AF |
| 5.7L | 1.10 (0.043 in.) | SP143877AB – Recommended | ||
| SPLZFR5C11 | ||||
| 6.2L | 0.80 (0.031 in.) | SP196724AA | ||
| 6.4L | 1.10 (0.043 in.) | SP149212AC | ||
NGK
NGK Iridium IX Spark Plugs are highly regarded for their exceptional durability and ignition capabilities, making them an appealing option for Dodge Charger drivers. Featuring iridium fine-wire electrodes, these plugs offer improved throttle response and fuel efficiency. Designed to work seamlessly with many Dodge Charger models, NGK spark plugs ensure consistent performance across different driving scenarios.
| NGK Spark Plug Recommendation | ||||
| Year | Model Generation | Engine | Spark Plug Gap (mm) | Part Number |
| 2006-2008 | Dodge Charger LX | 2.7L | 1.30 (0.051 in.) | 4998 – Recommended |
| 2314 | ||||
| 3381 | ||||
| 3.5L | 1.30 (0.051 in.) | 7781 | ||
| 5.7L | 1.00 (0.040 in.) | 4997 – Recommended | ||
| 2313 | ||||
| 5017 | ||||
| 5306 | ||||
| 6.1L | 1.30 (0.051 in.) | 4998 – Recommended | ||
| 2314 | ||||
| 3381 | ||||
| 2009-2010 | Dodge Charger LX | 2.7L | 1.30 (0.051 in.) | 4998 – Recommended |
| 2314 | ||||
| 3381 | ||||
| 3.5L | 1.30 (0.051 in.) | 7781 | ||
| 5.7L | 1.00 (0.040 in.) | 92145 – Recommended | ||
| 96355 | ||||
| 4469 | ||||
| 5018 | ||||
| 92174 | ||||
| 6.1L | 1.30 (0.051 in.) | 4998 – Recommended | ||
| 2314 | ||||
| 3381 | ||||
| 2011-2014 | Dodge Charger LD | 3.6L | 1.10 (0.043 in.) | 9723 – Recommended |
| 94705 | ||||
| 93175 | ||||
| 97390 | ||||
| 5.7L | 1.10 (0.043 in.) | 92145 – Recommended | ||
| 96355 | ||||
| 4469 | ||||
| 5018 | ||||
| 92174 | ||||
| 6.4L | 1.10 (0.043 in.) | 97408 | ||
| 2015-2022 | Dodge Charger LD | 3.6L | 1.10 (0.043 in.) | 9723 – Recommended |
| 94705 | ||||
| 93175 | ||||
| 97390 | ||||
| 5.7L | 1.10 (0.043 in.) | 92145 – Recommended | ||
| 96355 | ||||
| 4469 | ||||
| 5018 | ||||
| 92174 | ||||
| 6.2L | 0.80 (0.031 in.) | 7913 – Recommended | ||
| 93420 | ||||
| 93893 | ||||
| 1483 | ||||
| 6.4L | 1.10 (0.043 in.) | 97408 | ||
Denso
Denso Platinum TT Spark Plugs are an ideal choice for those who want efficiency and longevity. With twin-tip technology, they ensure efficient combustion and enhanced ignitability. Denso spark plugs offer long-lasting performance and minimal wear, providing stable idling and smooth acceleration for Dodge Charger owners.
| Denso Spark Plug Recommendation | ||||
| Year | Model Generation | Engine | Spark Plug Gap (mm) | Part Number |
| 2006-2008 | Dodge Charger LX | 2.7L | 1.30 (0.051 in.) | 5350 |
| 3.5L | 1.30 (0.051 in.) | 5018 | ||
| 5.7L | 1.00 (0.040 in.) | 4717 – Recommended | ||
| 5349 | ||||
| 6.1L | 1.30 (0.051 in.) | 4717 – Recommended | ||
| 5349 | ||||
| 2009-2010 | Dodge Charger LX | 2.7L | 1.30 (0.051 in.) | 5350 |
| 3.5L | 1.30 (0.051 in.) | 5018 | ||
| 5.7L | 1.00 (0.040 in.) | 3417 – Recommended | ||
| 4505 | ||||
| 4703 | ||||
| 5343 | ||||
| 6076 | ||||
| 6.1L | 1.30 (0.051 in.) | 5350 | ||
| 2011-2014 | Dodge Charger LD | 3.6L | 1.10 (0.043 in.) | 3461 – Recommended |
| 5356 | ||||
| 5.7L | 1.10 (0.043 in.) | 3417 – Recommended | ||
| 4505 | ||||
| 4703 | ||||
| 5343 | ||||
| 6.4L | 1.10 (0.043 in.) | 5350 | ||
| 2015-2022 | Dodge Charger LD | 3.6L | 1.10 (0.043 in.) | 3461 – Recommended |
| 5356 | ||||
| 5.7L | 1.10 (0.043 in.) | 3417 – Recommended | ||
| 4703 | ||||
| 5343 | ||||
| 6.2L | 0.80 (0.031 in.) | 3459 – Recommended | ||
| 4704 | ||||
| 5344 | ||||
| 6.4L | 1.10 (0.043 in.) | 5350 | ||
Bosch
Bosch Platinum Plus Spark Plugs are celebrated for their dependable performance and wallet-friendly price. Featuring high-quality platinum firing pins and innovative surface air gap technology, they guarantee smooth engine starts and operation.
These plugs ensure efficient combustion by maximizing spark exposure. Whether you’re on the highway or in the city, Bosch spark plugs offer consistent and reliable performance tailored to Dodge Charger owners.
| Bosch Spark Plug Recommendation | ||||
| Year | Model Generation | Engine | Spark Plug Gap (mm) | Part Number |
| 2006-2008 | Dodge Charger LX | 2.7L | 1.30 (0.051 in.) | 6711 |
| 3.5L | 1.30 (0.051 in.) | 8123 | ||
| 5.7L | 1.00 (0.040 in.) | 9654 – Recommended | ||
| 8161 | ||||
| 6711 | ||||
| 79009 | ||||
| 6.1L | 1.30 (0.051 in.) | 9667 – Recommended | ||
| 6732 | ||||
| 2009-2010 | Dodge Charger LX | 2.7L | 1.30 (0.051 in.) | 6711 |
| 3.5L | 1.30 (0.051 in.) | 8123 | ||
| 5.7L | 1.00 (0.040 in.) | 9673 – Recommended | ||
| 8162 | ||||
| 6734 | ||||
| 79090 | ||||
| 6.1L | 1.30 (0.051 in.) | 9667 – Recommended | ||
| 6732 | ||||
| 2011-2014 | Dodge Charger LD | 3.6L | 1.10 (0.043 in.) | 96337 |
| 5.7L | 1.10 (0.043 in.) | 9673 – Recommended | ||
| 8162 | ||||
| 6734 | ||||
| 79090 | ||||
| 6.4L | 1.10 (0.043 in.) | No Data | ||
| 2015-2022 | Dodge Charger LD | 3.6L | 1.10 (0.043 in.) | 96337 |
| 5.7L | 1.10 (0.043 in.) | 9673 – Recommended | ||
| 8162 | ||||
| 6734 | ||||
| 79090 | ||||
| 6.2L | 0.80 (0.031 in.) | 9748 | ||
| 6.4L | 1.10 (0.043 in.) | No Data | ||
Is it better to clean or replace spark plugs?
It is advisable to replace spark plugs rather than attempt to clean them. New spark plugs offer superior performance with precise electrode edges for optimal combustion. They are designed to last through the full manufacturer-recommended interval.
Cleaning used plugs are only a temporary solution before requiring early replacement. The modest cost of new plugs outweighs the benefits of peak ignition performance and longevity they provide. Replacement is recommended over cleaning.
Dodge Charger Spark Plug Replacement: DIY Tips
This DIY spark plug replacement procedure is for the Dodge Charger LX (2006-2010) with a 5.7L V8 engine. This engine contains two spark plugs in each cylinder. However, the process may stay the same for modern-day Dodge Chargers.
Safety First
- Make sure the engine is cool to the touch before beginning
- Disconnect the negative terminal of the battery
- Work in a well-ventilated area
- Use personal protective equipment such as gloves and coveralls.
Tools Needed
- Gloves
- Shop towels or rags
- Spark Plug Gapping Tool
- Screwdriver set
- Spanner set
- Ratchet and socket set
- Spark Plug Socket
- Torque Wrench
Step-by-Step Guide
Removing Ignition Coil — Open the hood and remove the engine covers to access the ignition coil. Two screws hold it down, undo them and disconnect its wiring connection. Once nothing is connected to it, pull it out of the spark plug well.
Clean Spark Plug Holes — Clean the spark plug well with compressed air to remove any debris that may have accumulated and potentially go inside the combustion chamber after removal of the spark plugs.
Remove Spark Plugs — The 5.7L engine has two spark plugs for each cylinder. Use an appropriate-sized spark plug socket and extension to remove all spark plugs. Lay them down after removal for inspection.
Inspect Old Spark Plugs — After removing the spark plugs, inspect their color and deposits: light brown suggests proper combustion, black soot indicates a rich mixture and oily deposits signal internal engine oil issues. Check for cracks, electrode wear, or melting, which may indicate pre-ignition.
Gap Spark Plugs — Use a spark plug gapping tool to gap the new spark plugs according to the manufacturer’s specifications. Not all spark plugs need to be gaped. Check the spark plug manufacturer’s recommendation if this is a step that you need to take.
Install New Spark Plugs — Carefully install the new spark plugs, ensuring they are securely tightened to 13 ft. lb (18 Nm).
Install the Ignition Coil — Apply a small amount of dielectric grease inside the spark plug boot, then install the ignition coil back into its place and connect the wire removed earlier. The ignition coil screws are to be tightened to 9 ft. lb (12 Nm).
Start the Engine — Start the engine and listen for any unusual sounds or vibrations. If everything seems normal, you’re done.
Should I replace all spark plugs?
We recommend replacing all the spark plugs simultaneously, even if only one or a few seem faulty. Spark plugs wear out gradually, and replacing them one at a time can lead to inconsistent performance between cylinders. Replacing all spark plugs as a set ensures all cylinders operate optimally, and it’s easier to do all of them at once rather than piecemeal.
Maintenance Tips for Dodge Charger Spark Plug
Proper maintenance of spark plugs is essential for ensuring optimal performance and longevity in your Dodge Charger. Here are some maintenance tips to keep your spark plugs in top condition:
Regular Inspection
Periodically inspect the condition of your spark plugs to ensure they are clean and free of debris. Look for signs of wear, such as eroded electrodes or excessive carbon buildup, which can indicate the need for replacement.
Follow Maintenance Schedule
Adhere to the manufacturer’s recommended maintenance schedule for spark plug replacement.
Dodge recommends replacing the spark plugs between 30,000 and 100,000 miles. However, the replacement interval can vary depending on the engine your Charger is equipped with. Refer to your owner manual to confirm the correct interval for the spark plug replacement.
Use Quality Fuel
Use high-quality fuel to prevent carbon deposits from accumulating on the spark plugs.
Low-quality or contaminated fuel can lead to fouling or misfiring of the spark plugs, affecting engine performance.
Avoid Oil Contamination
Oil contamination can cause the high voltage to travel over the insulator instead of the electrode. These will be called corona stains. If your old spark plugs have corona stains, you may need to replace the ignition coil boot or the whole ignition coil and repair the oil leak.
Inspect Ignition System
Consider checking the ignition coil regularly. Faulty ignition system components can cause premature wear or damage to the spark plugs, leading to decreased performance.
Clean or Replace the Air Filter
A dirty or clogged air filter can affect air intake, leading to incomplete combustion and fouling of the spark plugs. Clean or replace the air filter according to the manufacturer’s recommendations. Check your owner’s manual to find out when to replace your air filter.
Get the Best Dodge Charger Spark Plugs from Newparts.com
Unlock the raw power of your Dodge Charger with precision-engineered spark plugs from Newparts.com. Our meticulously curated selection of genuine Mopar and OEM spark plugs is tailored to the exacting specifications of your Charger’s engine, ensuring optimal combustion and unleashing the true fury of American muscle.
At Newparts.com, we recognize that Dodge Charger enthusiasts demand nothing less than unbeatable performance and reliability. That’s why we offer spark plugs engineered to extract every ounce of power from your Charger, whether you’re conquering the quarter-mile or commanding the open road.
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