The 10 Best Spark Plugs For Chrysler 300 Reviewed (2025)

I recently spent a lot of time under the hood of my own 300, realizing just how much a tired set of plugs can drag down horsepower and fuel efficiency. If you’re looking to restore that factory zip and smooth idle, finding the best spark plugs for chrysler 300 is crucial. I’ve gathered and reviewed 10 top options—covering everything from the popular V6 3.6L Pentastar to the mighty V8 5.7L HEMI—to help you make the smartest choice for reliable performance and longevity.

IMAGE	PRODUCT NAME	AMAZON LINK
	6 pc Champion Platinum Spark Plugs compatible with Chrysler…	View on Amazon
	ENA Set of 6 Iridium Spark Plug Compatible with BMW…	View on Amazon
	UF648 Ignition Coil &97390 Double Iridium Spark Plug For…	View on Amazon
	UF502 Ignition Coil & 7781 Double Iridium Spark Plug for…	View on Amazon
	7781 Double Iridium Spark Plugs for Chrysler 300 300M…	View on Amazon
	16 pc NGK V-Power Spark Plugs compatible with Chrysler…	View on Amazon
	16 pc Champion Platinum Spark Plugs compatible with…	View on Amazon
	Iridium Spark Plugs 6 Pack XP5701 Fits for 2011-2021 3.6…	View on Amazon
	BDFHYK Ignition Coil Pack UF648 and Iridium Spark Plug…	View on Amazon
	6 pc Champion Iridium Spark Plugs compatible with Chrysler…	View on Amazon

Product Reviews: Finding the Best Spark Plugs For Chrysler 300

6 pc Champion Platinum Spark Plugs compatible with Chrysler 300 3.5L V6 2005-2010

If you drive an earlier generation Chrysler 300 equipped with the 3.5L V6 engine, this Champion Platinum set is an excellent, reliable replacement. Champion is well-known for producing OE-quality components, and this platinum design ensures great ignitability and reduced misfires through its V-trimmed ground electrode. These plugs are built to handle high heat, ensuring reliable performance that lasts for a long time. They offer genuine quality and a dependable spark for older V6 models.

Key features that stand out:
– V-trimmed ground electrode: Promotes sharper spark focus for fewer misfires.
– Durable Platinum Construction: Designed to withstand high heat and wear.
– Fine-wire center electrode: Ensures enhanced ignitability and consistent performance.

Pros:
– Excellent OE-quality fit and finish for the 3.5L V6.
– Platinum construction offers a good balance of performance and cost.
– Trusted brand heritage in racing and OE components.

Cons:
– Platinum lifespan is generally shorter than Iridium options.

Best for: 2005-2010 Chrysler 300 owners seeking a dependable, OE-quality replacement for the 3.5L V6 engine.

Expert Opinion: Champion Platinum plugs are a fantastic value proposition for legacy Chrysler 300 engines where the manufacturer may have originally specified a platinum or copper plug. They deliver stability under sustained operation.

ENA Set of 6 Iridium Spark Plug Compatible with BMW Chrysler Dodge M3 M5 M6 200 300 Pacifica Town & Country Voyager Avenger Challenger Charger Durango Grand Caravan Journey Replacement for XP5701

This versatile set of Iridium spark plugs from ENA is specifically designed to fit the widely used 3.6L V6 Pentastar engine found in the 2011-2021 Chrysler 300 models. Featuring a fine-wire iridium center electrode, these plugs deliver highly precise ignition, which is key to improving throttle response and ensuring fuel efficiency. They come pre-gapped for a hassle-free installation, making this a great DIY maintenance option.

Key features that stand out:
– Fine-wire Iridium Center Electrode: Maximizes spark focus and reduces misfires.
– Wide Vehicle Fitment: Covers many modern V6 3.6L MOPAR applications.
– Pre-Gapped: Simplifies installation for the average owner.

Pros:
– Iridium construction provides a very long lifespan (often 100,000+ miles).
– Improves throttle response and helps stabilize rough idling.
– Cost-effective set for 3.6L Pentastar maintenance.

Cons:
– Less brand recognition compared to NGK or Champion.

Best for: Owners of 2011+ Chrysler 300 3.6L V6 seeking maximum longevity and modern ignition performance.

Expert Opinion: Iridium plugs are the standard for modern long-life maintenance intervals, especially on the Pentastar engine. The fine-wire design in these ENA plugs ensures the high-voltage spark is delivered efficiently.

UF648 Ignition Coil &97390 Double Iridium Spark Plug For Chrysler 200 300 TOWN & COUNTRY/Dodge Avenger Challenger Charger Durango Grand Caravan Journey/Jeep Wrangler/Ram 1500 2500 3500 C1791 UF648

This comprehensive kit provides both the necessary ignition coils and high-quality double iridium spark plugs for the 3.6L V6 Chrysler 300 (2011-2020). If your vehicle is over 80,000 miles, replacing the coils along with the plugs is often recommended to prevent misfires caused by aging electrical components. The double iridium plugs are rated for exceptional longevity, working consistently for up to 100,000 kilometers.

Key features that stand out:
– Double Iridium Spark Plug: Offers exceptional working life and consistent spark stability.
– Full 6-pack Coil & Plug Set: Ideal preventative maintenance package.
– High-quality Coil Construction: Coils feature internal ferrite noise suppressors and advanced thermoplastic connectors.

Pros:
– Replaces two critical ignition components simultaneously.
– Coils are designed to match or improve on OE specifications.
– Long maintenance interval due to double iridium design.

Cons:
– Installation requires more time than just replacing the plugs alone.

Best for: 3.6L V6 owners who need a complete ignition system overhaul to solve existing misfire issues or for high-mileage preventative maintenance.

Expert Opinion: When diagnosing persistent misfires, replacing both the coil packs and the best spark plugs for chrysler 300 is the most effective solution. This kit simplifies that process by packaging everything needed together.

UF502 Ignition Coil & 7781 Double Iridium Spark Plug for Chrysler 300 Pacifica Sebring Town & Country/Dodge Avenger Challenger Charger Grand Caravan Journey Magnum Nitro Stratus/Volkswagen Routan V6

Targeting the 3.5L and 4.0L V6 engines common in the 2006-2010 Chrysler 300 models, this kit also includes both the UF502 ignition coils and double iridium spark plugs. Just like the UF648 kit, this package is designed for owners tackling rough idle or poor fuel economy related to tired ignition components. The double iridium material ensures that even older engines benefit from enhanced ignitability and an extended service life up to 100,000 kilometers.

Key features that stand out:
– Double Iridium 7781 Plugs: Long working life for extended durability.
– UF502 Coil Pack: High-quality replacement for older V6 engine coils.
– Superior Cold-Start Performance: Engineered for reliable starts in adverse conditions.

Pros:
– Excellent choice for complete ignition revitalization on older V6 engines.
– Coils built with materials designed to resist heat and thermal cycling.
– Helps resolve common issues like engine misfire and hesitation.

Cons:
– Specifically limited to the pre-2011 3.5L/4.0L V6 engines, check fitment carefully.

Best for: Owners of 2006-2010 3.5L V6 Chrysler 300 models requiring a full ignition coil and plug replacement kit.

Expert Opinion: For engines over a decade old, coil degradation is expected. Utilizing a complete kit with high-durability iridium plugs ensures you are renewing the entire high-voltage path for maximum reliability.

7781 Double Iridium Spark Plugs for Chrysler 300 300M Concorde Intrepid Pacifica Sebring/Dodge Avenger Challenger Charger Journey Grand Caravan V6 Replaces# ZFR5LP13G 04606591AB 4118 3034 (set of 6)

This is a standalone set of 6 double iridium spark plugs (OE# 7781) designed for the 3.5L V6 engines in the 2005-2010 Chrysler 300. If your ignition coils are still in good shape, or if you prefer a different coil brand, this plug-only set offers superb performance improvements. The double iridium design provides rapid starts, quicker acceleration, and improved fuel economy compared to standard copper or single platinum plugs.

Key features that stand out:
– Double Iridium Firing Pin: Exceptional ignitability and stability.
– Extensive Vehicle Compatibility: Fits a wide range of older 3.5L V6 MOPAR vehicles.
– 100,000 Kilometer Lifespan: Offers long intervals between replacements.

Pros:
– Top-tier durability and performance plug design.
– Direct replacement for OE plugs like ZFR5LP13G.
– Excellent for improving fuel economy and reducing emissions.

Cons:
– Does not include the ignition coils, requiring separate purchase if needed.

Best for: 2005-2010 Chrysler 300 3.5L V6 owners who only need to replace the spark plugs but want the maximum lifespan available.

Expert Opinion: Utilizing iridium on an older engine platform (3.5L) is a worthwhile upgrade, providing longevity that OE copper plugs simply cannot match, leading to fewer maintenance worries over time.

16 pc NGK V-Power Spark Plugs compatible with Chrysler 300 5.7L V8 2005-2008

The HEMI engine requires special consideration, primarily due to the MDS (Multi-Displacement System) and the need for 16 plugs (two per cylinder). NGK is a globally trusted brand, and their V-Power plugs are a highly popular choice for the 5.7L V8 2005-2008 Chrysler 300. The V-Power design enhances ignitability by directing the spark, promoting better combustion and resisting fouling, making them a great OEM-level replacement.

Key features that stand out:
– 16-Pack Specific for HEMI: Provides the exact number of plugs needed for the V8 engine.
– NGK V-Power Design: Features a V-cut in the ground electrode to improve ignition.
– Genuine NGK Quality: Direct replacement ensuring proper fitment and performance.

Pros:
– Extremely reliable performance for the demanding HEMI engine.
– Excellent resistance to carbon buildup and fouling.
– NGK is renowned for quality control and consistency.

Cons:
– V-Power plugs are typically nickel alloy, not precious metal, requiring more frequent replacement than Iridium.

Best for: Owners of 2005-2008 Chrysler 300 5.7L V8 (HEMI) seeking reliable, OE-level performance plugs that meet all the engine’s requirements.

Expert Opinion: For the 5.7L HEMI, consistency is critical due to the high volume of plugs. NGK V-Power delivers that consistency and is a top choice for maintaining optimal horsepower output.

16 pc Champion Platinum Spark Plugs compatible with Chrysler 300 5.7L V8 2005-2008

Another excellent 16-plug solution for the 5.7L V8 HEMI engine (2005-2008) comes from Champion. These Platinum Power plugs provide a significant upgrade over standard copper cores by utilizing durable precious metals. This platinum construction reduces electrical wear and tear, meaning they will last longer than traditional copper or nickel plugs while providing a strong, dependable spark needed for the HEMI’s high-compression environment.

Key features that stand out:
– Platinum Power Technology: Extends plug life compared to standard types.
– 16-Count Set: Complete replacement for the 5.7L V8.
– OE-Quality Replacement: Adheres to tough industry standards for fit and longevity.

Pros:
– Better durability and wear resistance than copper plugs.
– Champion is a long-standing OE manufacturer for MOPAR vehicles.
– Seamless, direct replacement installation.

Cons:
– More expensive than the standard NGK V-Power plugs.

Best for: 5.7L V8 HEMI owners who prioritize a longer service interval than copper plugs offer without moving to expensive double iridium.

Expert Opinion: When looking for the best spark plugs for chrysler 300 V8 models, platinum offers a strong middle ground, providing enhanced longevity over basic copper while delivering precise ignition required for the MDS system.

Iridium Spark Plugs 6 Pack XP5701 Fits for 2011-2021 3.6 Dodge Challenger Charger Durango Grand Caravan Journey & Jeep Grand Cherokee Wrangler & Chrysler 200 300 Town and Country & Ram 1500 V6 3.6L

This is a highly popular, direct replacement Iridium set (reference number XP5701) tailored for the modern 3.6L V6 Pentastar engine used extensively in the Chrysler 300 since 2011. Iridium is ideal for today’s high-performance engines because its alloy has an extremely high melting point, giving it exceptional durability against heat and electrical stress. This translates directly to outstanding high-performance stability and long life.

Key features that stand out:
– High-Durability Iridium Alloy: Six times harder than platinum, ideal for high-heat environments.
– XP5701 Reference: Ensures precise compatibility with the 3.6L Pentastar.
– Broad MOPAR Compatibility: A reliable choice across the entire V6 3.6L platform.

Pros:
– Maximum durability and service life rating.
– Excellent cold-start reliability and immediate throttle response.
– Reduces the frequency of needed maintenance.

Cons:
– Some users report needing to verify the gap upon arrival, though advertised as pre-gapped.

Best for: 2011+ Chrysler 300 V6 owners seeking the highest quality precious metal plug for maximum longevity and performance retention.

Expert Opinion: For those who track their mileage meticulously, this Iridium set provides confidence that the plugs will hold up perfectly through long recommended maintenance intervals.

BDFHYK Ignition Coil Pack UF648 and Iridium Spark Plug 97390 Compatible with Jeep Grand Cherokee 2011-2015 Jeep Wrangler Dodge Charger Grand Caravan 2016 Chrysler 200 300 Jeep Coil Pack 3.6L Set of 6

Similar to the third item on this list, this BDFHYK set offers a full replacement of both the 6 ignition coils (UF648) and the Iridium spark plugs (97390) for the 2011-2020 3.6L V6 300. The manufacturer specifically targets owners whose cars show signs of aging ignition, such as vehicle shaking or slow acceleration, providing a single solution. The components utilize high-tech materials, including iridium electrodes and unique ceramics, guaranteeing a new-car feel upon installation.

Key features that stand out:
– Troubleshooting Kit: Designed to fix common high-mileage ignition problems (shaking, slow acceleration).
– Iridium Electrode and Unique Ceramic: Ensures quick starts and rapid acceleration.
– High-Quality Coil Construction: Made with silicon steel and Japan-imported rubber for long life.

Pros:
– Comprehensive repair solution for aging ignition systems.
– High-quality components designed for durability.
– Restores powerful, new-car performance.

Cons:
– Less established brand name compared to OE suppliers like Champion or NGK.

Best for: 3.6L V6 owners experiencing noticeable ignition problems and needing a full coil and plug system replacement on a budget.

Expert Opinion: Combining an Iridium plug with a new coil pack is the best way to ensure the engine runs smoothly for the next 100,000 miles. This kit offers strong specs at a competitive price point.

6 pc Champion Iridium Spark Plugs compatible with Chrysler 300 3.6L V6 2011-2020

If you prefer sticking with a trusted OE name like Champion but want the longevity of Iridium, this 6-piece set is the perfect match for your 2011-2020 3.6L V6 Chrysler 300. Champion Iridium spark plugs are built to meet modern engine demands for powerful, long-lasting performance. By utilizing durable precious metals, these plugs minimize wear and tear, ensuring that you get the reliable performance the 300 is known for.

Key features that stand out:
– Genuine Champion Iridium: Trusted OE expertise combined with premium metal durability.
– Minimizes Wear and Tear: Designed for long-lasting performance.
– Direct Replacement Quality: Guaranteed seamless fit and adherence to tough industry standards.

Pros:
– Best balance of brand trust and modern iridium lifespan.
– Ideal fitment and reliable performance retention.
– Great choice for routine maintenance on the 3.6L Pentastar.

Cons:
– Often priced higher than comparable generic iridium sets.

Best for: 2011+ 3.6L V6 owners who prioritize using a top-tier, OE-associated brand for their premium iridium replacement.

Expert Opinion: When advising customers, I often recommend Champion or NGK iridium plugs for the 3.6L engine as they offer guaranteed quality control, which is essential for maximizing performance and longevity.

Helpful Comparison Short Insights

Choosing the best spark plugs for chrysler 300 heavily depends on your engine type (V6 or V8) and your maintenance goals (performance vs. longevity).

For the modern V6 3.6L Pentastar engine (2011+), the clear winner for reliability and lifespan is Iridium. Options like the Champion Iridium or the ENA Iridium Set offer 100,000+ mile capabilities. If your car is showing signs of high-mileage hesitation, opting for a full plug and coil replacement kit (like the UF648/97390 sets) provides the most comprehensive fix.

If you drive the older V6 3.5L engine (2005-2010), you have great options in either Platinum or Double Iridium (like the 7781 set). Platinum plugs (such as the 6 pc Champion Platinum) offer an excellent OE standard replacement at a slightly lower cost.

For the V8 5.7L HEMI engine, you absolutely need a 16-pack. Due to the high heat and specific requirements of the MDS system, both the NGK V-Power (nickel alloy) and the Champion Platinum are proven performers. NGK is often preferred by enthusiasts for its reliable, consistent spark, while the Champion Platinum offers slightly extended durability and resistance to electrical erosion.

Final Verdict: Which Spark Plug Should You Buy?

Making the final decision on the best spark plugs for chrysler 300 comes down to engine size and how long you want them to last.

For the 3.6L V6 Pentastar (2011-2020):
The Champion Iridium Spark Plugs (6 pc) offer the winning combination of OEM reputation and maximum 100,000-mile longevity. They are the premium choice for peace of mind.

For the 5.7L V8 HEMI (2005-2008):
The 16 pc NGK V-Power Spark Plugs are the perennial favorite. While they require more frequent changes than Iridium, their consistent performance and perfect compatibility with the HEMI engine structure make them the most trusted option for optimal horsepower.

The Best Budget Longevity Kit:
If you need to replace both plugs and coils on your 3.6L V6, the UF648 Ignition Coil & 97390 Double Iridium Spark Plug set provides an outstanding comprehensive maintenance solution at an excellent price point.

Best Spark Plugs For Chrysler 300 FAQ

Q1: What is the difference between Iridium and Platinum spark plugs, and which is better for my Chrysler 300?

A: Iridium and Platinum refer to the metal alloy used in the electrode tips. Iridium is significantly harder and has a higher melting point, offering the longest lifespan (typically 100,000+ miles) and is generally recommended for modern V6 3.6L Pentastar engines. Platinum plugs are a step up from traditional copper, providing excellent heat resistance and a long life (around 60,000–80,000 miles), making them a reliable choice for the older 3.5L V6 and 5.7L HEMI engines. Iridium is technologically superior for longevity.

Q2: How often should I replace the best spark plugs for chrysler 300?

A: The replacement interval depends heavily on the type of plug and the engine. Iridium spark plugs on the 3.6L V6 Pentastar should be replaced approximately every 90,000 to 100,000 miles. Platinum plugs for V8 or older V6 engines usually last around 60,000 to 80,000 miles. If you use standard copper or nickel alloy plugs (like NGK V-Power in the HEMI), the interval is often much shorter, typically every 30,000 miles.

Q3: Do the 5.7L V8 HEMI models really require 16 spark plugs?

A: Yes, they do. The 5.7L HEMI engine utilizes a dual-plug design (two spark plugs per cylinder) to promote a more complete and efficient combustion process, which is especially important when the Multi-Displacement System (MDS) activates. You must purchase a 16-piece set for a full replacement on the V8 engine.

Q4: Are the spark plugs pre-gapped, or should I gap them myself?

A: Most premium precious metal plugs (Iridium and Platinum) are typically pre-gapped by the manufacturer for the specified application (like the 3.6L Pentastar, which requires a specific gap). While they are ready to install, it is always best practice to double-check the gap using a wire gauge against your specific model’s engine specification sheet before installation to ensure optimal performance.

Q5: Will new spark plugs improve my fuel efficiency?

A: Yes, absolutely. Old, worn-out spark plugs deliver a weak or inconsistent spark, leading to incomplete combustion in the cylinders. By installing the best spark plugs for chrysler 300, you restore a clean, powerful spark, which allows the engine to burn fuel more efficiently, resulting in a noticeable improvement in fuel economy and reduced emissions.

Q6: What symptoms indicate I need to replace my Chrysler 300 spark plugs and coils?

A: Common symptoms of bad spark plugs include rough idling, engine misfires (often causing the check engine light to flash), noticeable engine hesitation or stumbling during acceleration, and decreased horsepower. If you experience these symptoms, especially paired with poor gas mileage, it’s time to inspect and replace your ignition components.

Q7: Can I install Iridium spark plugs in my older 3.5L V6 engine?

A: Yes, upgrading to iridium plugs (like the 7781 set) in your older 3.5L V6 is generally recommended. While the engine may have originally specified copper or platinum, using iridium provides superior durability and heat resistance, translating into a longer service life and reliable performance for your Chrysler 300.