Best Spark Plugs For 2013 Chevy Impala

When my 2013 Chevy Impala started feeling sluggish and hesitated slightly on cold starts, I knew it was time for a tune-up. Replacing the spark plugs is one of the most cost-effective ways to restore lost horsepower and improve your fuel efficiency, especially in a reliable V6 engine like the one in the Impala. I spent hours digging through options—from OEM ACDelco to specialized NGK and Champion—to find the absolute best spark plugs for the 2013 Chevy Impala. Below, I break down the top contenders, focusing on durability, performance, and what you need to know before tackling this DIY spark plug replacement job.

IMAGE	PRODUCT NAME	AMAZON LINK
	NGK # 6509 Iridium Spark Plug LTR6IX-11 – 6 PCSNEW	View on Amazon
	6 pc Champion Platinum Spark Plugs compatible with…	View on Amazon
	Iridium Spark Plugs 4 Pack 96329 Compatible with 2013-2019…	View on Amazon
	6 pc NGK V-Power Spark Plugs compatible with Chevrolet…	View on Amazon
	ACDelco GM Original Equipment 41-109 (12681660) Iridium…	View on Amazon
	Ignition Coil Pack and Iridium Spark Plugs Set of 4…	View on Amazon
	ENA Pack 6 Ignition Coil with 6 Iridium Spark Plug…	View on Amazon
	AULINK 8PCS SP548 LTR6AHX Spark Plugs Iridium Platinum…	View on Amazon
	Pack 6 Ignition Coil with 6 Iridium Spark Plug 2010…	View on Amazon
	Iridium Spark Plugs 6 Pack 7164 TR55IX Compatible with…	View on Amazon

NGK # 6509 Iridium Spark Plug LTR6IX-11 – 6 PCSNEW

These NGK Iridium plugs are a fantastic choice if you’re looking for performance and longevity beyond standard OEM options. The iridium construction ensures maximum durability and a fine center electrode, which translates directly into a powerful, consistent spark. You’ll notice smoother idling and better throttle response right away. Since they come in a convenient pack of six, they are ready for the 3.6L V6 engine typically found in the 2013 model.

Key features that stand out:
– Iridium Construction: Provides exceptional wear resistance and extremely long plug life.
– Fine Wire Center Electrode: Enhances ignition efficiency for improved starting and acceleration.
– Trivalent Metal Plating: Offers superior anti-seizing and anti-corrosion properties.

Pros:
– Excellent long-term durability, minimizing maintenance frequency.
– Noticeable improvement in ignition and cold-start reliability.
– Pre-gapped for most applications (though always verify).
– Premium quality trusted by enthusiasts.

Cons:
– They come at a higher price point than standard copper or platinum plugs.

Best for: The driver prioritizing performance, longevity, and reduced maintenance intervals.

Expert Opinion: This plug uses a rolled thread design, which minimizes stress on the cylinder head. For the high-output V6 in the Impala, the powerful, concentrated spark provided by iridium is highly beneficial for maintaining high-RPM efficiency.

6 pc Champion Platinum Spark Plugs compatible with Chevrolet Impala 3.6L V6 2012-2019

If you trust established, genuine OE-quality brands, this set of six Champion Platinum plugs is engineered specifically for the 3.6L V6 engine range of your Impala. Platinum plugs offer a great balance between the short life of copper and the high cost of iridium, providing reliable performance and a substantial service life. Champion is known for its racing heritage, ensuring these parts meet demanding standards.

Key features that stand out:
– Genuine Champion Parts: Ensures OE-quality fitment and reliability.
– Durable Platinum Construction: Designed to improve performance while minimizing wear and tear.
– Wide Vehicle Compatibility: Fits 3.6L V6 Impalas from 2012 all the way up to 2019.

Pros:
– Reliable, proven brand with a history of quality ignition parts.
– Excellent lifespan suitable for typical maintenance schedules.
– Good value for money compared to pure iridium options.
– Direct replacement design simplifies installation.

Cons:
– Platinum typically doesn’t offer the extreme longevity of iridium.

Best for: Drivers seeking a reliable, OE-quality replacement that balances durability and affordability for their 3.6L V6 Impala.

Expert Opinion: Platinum is a sturdy middle ground for durability. Champion’s focus on minimizing wear makes this set ideal for the daily commuter who needs consistent, worry-free ignition over tens of thousands of miles.

Iridium Spark Plugs 4 Pack 96329 Compatible with 2013-2019 Chevrolet Chevy Impala 2.5 Malibu Colorado GMC Canyon Acadia Cadillac ATS Buick Envision LaCrosse 2014 2015 2016 2017 2018 L4 2.5L

A note on fitment: While many 2013 Impalas are V6, this particular set is optimized for the 2.5L L4 engine used in later generations or specific Impala trims. If your 2013 model has the four-cylinder motor, this set is a strong contender. This iridium set is designed to maximize fuel efficiency through its advanced fine-wire tip. It addresses common ignition issues like misfiring and poor idling, providing stable, reliable performance across your engine’s speed range.

Key features that stand out:
– 0.6mm Finewire Iridium Tip: Ensures maximum fuel efficiency and a powerful spark.
– Laser Welded Technology: Provides high durability and consistent spark delivery.
– Rigorous Quality Testing: Specifically aimed at eliminating common L4 ignition problems (stalling, jerking).

Pros:
– Excellent focus on maximizing fuel economy.
– Iridium construction guarantees a long service life.
– Targets stability issues common in smaller engines.
– Includes a 12-month worry-free warranty.

Cons:
– Only includes 4 plugs, making it incompatible with the standard V6 Impala engine.

Best for: Owners of 2013 Impalas or Impala Limited models equipped with the 2.5L four-cylinder engine seeking fuel efficiency improvements.

Expert Opinion: The ultra-fine center electrode design here is critical for modern L4 engines running higher compression ratios. This design ensures that ignition occurs efficiently even under stress, preventing pre-ignition and optimizing mileage.

6 pc NGK V-Power Spark Plugs compatible with Chevrolet Impala 3.5L 3.9L V6 2006-2011

While your 2013 Impala most likely has the 3.6L V6, some fleets or previous-generation holdovers might still have the older 3.5L or 3.9L engines. This NGK V-Power set is perfect if you own one of those older V6 powertrains (typically the 8th generation). These are traditional nickel alloy plugs with a distinctive V-groove center electrode designed to improve ignitability. They are genuine NGK parts and a reliable standard replacement.

Key features that stand out:
– V-Groove Center Electrode: Directs the spark to the edge of the electrode, improving ignitability and reducing quenching.
– Nickel Alloy Construction: Provides reliable, consistent ignition performance.
– Genuine NGK Parts: Assurance of quality and proper fitment for older V6 models.

Pros:
– Highly affordable and reliable standard replacement plug.
– Proven performance in older GM V6 engines.
– Excellent ignitability, resulting in quick starts.

Cons:
– Shorter lifespan than iridium or platinum alternatives, requiring more frequent changes.

Best for: Owners of older generation Impalas (or the specific 2013 Impala Limited that might use this engine) who prefer a high-quality, economical copper plug.

Expert Opinion: The V-Power design is an excellent improvement over standard copper plugs. While the longevity is lower than precious metals, the ignition reliability makes it a top choice for traditional engine designs.

ACDelco GM Original Equipment 41-109 (12681660) Iridium Spark Plug

ACDelco is the official GM Original Equipment (OE) brand, meaning this plug is what the factory installed in your 2013 Impala V6. Choosing OE ensures seamless compatibility and the performance characteristics GM engineered for the car. This iridium plug is designed for longevity, providing smooth idling and fast acceleration, backed by its fine-wire electrode design and superior suppressor seal technology.

Key features that stand out:
– GM Original Equipment: Guaranteed OE fitment for the 3.6L V6 engine (sold individually, so you must order 6).
– Iridium Fine-Wire Electrode: Helps burn away carbon deposits for consistent performance over time.
– One Piece Suppressor Seal: Blocks radio frequency interference (RFI) that can disrupt vehicle electronics.

Pros:
– Perfect factory fit and operation assurance.
– Superior smooth performance and idle stability.
– Excellent longevity typical of iridium plugs.
– High-quality suppressor seal protects sensitive car electronics.

Cons:
– Requires ordering six separate units, which can sometimes be less convenient than a complete kit.

Best for: The owner who demands factory-specified quality, stability, and maximum durability for their 3.6L V6.

Expert Opinion: When in doubt about aftermarket compatibility, OE plugs like the ACDelco 41-109 are always the safest bet. The RFI suppression is a critical, often overlooked feature that contributes to overall system health.

Ignition Coil Pack and Iridium Spark Plugs Set of 4 Compatible with Chevy Colorado 2015-2022/Impala 2014-2019/Malibu/Blazer & GMC Canyon 2015-2022/Acadia & Buick Envision 2017-2020 & Cadillac ATS 2.5L

This is a comprehensive ignition system overhaul kit, but critically, it’s for the 2.5L L4 engine, not the standard V6. If you have the four-cylinder Impala, replacing the coils along with the plugs is a great idea, especially if your car is showing signs of misfires or coil degradation. This kit uses high-conductivity copper core coils to boost spark energy, resulting in quicker starts and smoother driving.

Key features that stand out:
– Includes Ignition Coils and Spark Plugs (4 total): A complete system refresh for maximum reliability.
– High-Conductivity Copper Core: Accelerates spark energy by 10-15% for enhanced performance.
– Robust Ceramic Insulator: Built to withstand extreme heat and voltage fluctuations.

Pros:
– Offers a complete solution to fix chronic misfire issues.
– Enhanced driving experience due to boosted spark energy.
– Exceeds OEM durability standards for harsh conditions.

Cons:
– Only fits L4 2.5L engines and is not applicable to the common 3.6L V6.

Best for: Impala 2.5L L4 owners looking to completely overhaul their ignition system for peak reliability and performance gain.

Expert Opinion: For vehicles nearing 100,000 miles, replacing both the plugs and the coils simultaneously is a wise investment, as coils often degrade under prolonged heat exposure, leading to inefficient ignition.

ENA Pack 6 Ignition Coil with 6 Iridium Spark Plug 3.6 V6 2010 2012 2013 2014 2015 2016 Compatible with Buick Chevy Cadillac Malibu Allure Enclave ATS CTS SRX STS Camaro Impala Terrain for UF569

Finally, a complete V6 ignition refresh kit! This ENA kit provides six high-quality Iridium spark plugs and six corresponding ignition coils, making it an ideal choice for the 3.6L V6 Impala. This ensures that every component in your ignition system is new, eliminating any potential performance bottlenecks caused by aging coils. The extensive compatibility list confirms its suitability for the 2013 Impala 3.6L engine.

Key features that stand out:
– 6 Iridium Plugs and 6 Coils: Total ignition system replacement for V6 engines.
– 24-Month Warranty: Provides significant peace of mind regarding product quality and lifespan.
– Wide 3.6L GM Engine Compatibility: Confirms engineering for the specific GM V6 platform.

Pros:
– Solves potential issues from old coils and plugs simultaneously.
– Iridium construction for long service life.
– Exceptional value considering the inclusion of six coils.

Cons:
– Non-OEM coils can occasionally have slightly varying tolerances compared to ACDelco.

Best for: Impala 3.6L V6 owners who are performing a major 100,000-mile tune-up and want to replace the coils and plugs at the same time.

Expert Opinion: The 3.6L V6 Impala can be tricky to service, especially the rear bank. Since you are already accessing the coils to change the plugs, using a kit like this minimizes the labor hassle later on if a coil fails.

AULINK 8PCS SP548 LTR6AHX Spark Plugs Iridium Platinum (2.5L 5.0L 5.2L) For Ford F150 Mustang 2011-2017,Cadillac ATS 2014-2015,Chevy Colorado Impala Malibu 2013-2015,GMC Canyo 2015 91276 90374 L4 V8

This product is an interesting hybrid, featuring Iridium Platinum construction (often referred to as double platinum or iridium enhanced). Note the kit includes 8 plugs, which is more than the Impala needs, and is focused on the 2.5L L4 engine. The design focuses on robust performance, aiming for better fuel economy and reduced emissions. While the fitment lists primarily other vehicles, the L4 2.5L Impala is included.

Key features that stand out:
– Iridium Platinum Construction: Provides robust durability, combining the strength of both precious metals.
– Laser Welded Fine Tips: Ensures continuous, steady spark for faster startup and acceleration.
– 1 Year or 50,000 Miles Warranty: Solid coverage for a replacement part.

Pros:
– Excellent material quality designed for extreme longevity.
– Supports cleaner combustion and reduced emissions.
– Kit is often priced competitively, despite including 8 plugs.

Cons:
– Not compatible with the V6 engine, and 8 plugs are unnecessary for the 4-cylinder Impala.

Best for: The 2.5L L4 Impala owner looking for a premium, dual-metal plug designed for high reliability and clean burning.

Expert Opinion: Using two precious metals (Iridium/Platinum) stabilizes the spark gap and resists erosion, which is excellent for modern engines that require high heat resistance and precise timing.

Pack 6 Ignition Coil with 6 Iridium Spark Plug 2010 2012 2013 2014 2015 2016 for Buick for Chevy for Cadillac Malibu Allure Enclave ATS CTS SRX STS Camaro Impala Terrain 3.6 V6 for UF569 12618542

Very similar to the ENA kit reviewed earlier, this 6-pack offers a full ignition overhaul for the 3.6L V6 Impala. What stands out here is the specific material engineering: the coils are made with Japan-imported rubber and Germany-imported varnished wire. This focus on material sourcing promises durability even under the extreme heat conditions found in the Impala’s engine bay, ensuring the car runs “like new again.”

Key features that stand out:
– High-Quality Coil Construction: Uses imported rubber and varnished wire for increased heat resistance and durability.
– Direct OEM Fitment: Engineered for seamless, effortless installation into V6 models (UF569 replacement).
– Engine Protection: Designed to reduce the overload on spark plugs, extending both the plug and engine life.

Pros:
– Superior materials designed to last in extreme conditions.
– Comprehensive replacement addressing both coil and plug aging.
– Highly detailed fitment list confirming V6 Impala compatibility.

Cons:
– The quality difference between this and the similar ENA kit might be hard to verify immediately.

Best for: V6 Impala drivers who need to replace their full ignition system and prioritize high-quality, durable coil materials.

Expert Opinion: The manufacturer clearly emphasizes materials designed to handle high voltage. Replacing aging coils is crucial for eliminating hard starting and maximizing the service life of the new iridium plugs.

Iridium Spark Plugs 6 Pack 7164 TR55IX Compatible with 1999-2013 Chevy Silverado 1500 4.3 V6 GMC Sierra, Buick Century LeSabre, Ford Explorer Escape, Cadillac, Pontiac, Mazda Vehicles 3.1L-4.3L

This 6-pack of Iridium plugs targets a broad range of older GM and Ford V6 engines. While the fitment chart does list the 2000-2005 Chevy Impala (with the 3.4L/3.8L V6), it generally covers engines older than the modern 3.6L V6 found in most 2013 models. If your specific 2013 Impala happens to be an Impala Limited or a late-production older body style that uses the 3.4L or 3.8L V6, these reliable Iridium plugs are an excellent choice.

Key features that stand out:
– Iridium Alloy: Extremely robust and reliable for engines up to 4.3L.
– Broad Compatibility: Excellent choice if you have one of the many older GM V6 variants.
– Reference Number 7164, TR55IX: Popular and well-regarded replacement plug codes.

Pros:
– High durability due to iridium construction.
– Ideal fit for specific, older V6 engines that might overlap into the 2013 model year.
– A trusted plug design for decades of V6 use.

Cons:
– Unlikely to be compatible with the common 3.6L LFX engine in the 2013 Impala.

Best for: Owners whose 2013 Impala is confirmed to have the older 3.8L or 3.4L V6 engine (Impala Limited/Fleet models).

Expert Opinion: Confirming your exact engine code (LFX vs. L36/L26) is vital when purchasing plugs. If you have the older engine, the reliable performance and heat range of the TR55IX are highly suitable.

Comparison Short Insights

When choosing spark plugs for your 2013 Chevy Impala, the first step is confirming your engine: is it the ubiquitous 3.6L V6 or the less common 2.5L L4?

If you have the 3.6L V6, your primary choices are Iridium or Platinum. Iridium plugs (like the NGK # 6509 or the ACDelco OE 41-109) offer the absolute longest life and best performance, often rated for 100,000 miles or more, making them the superior choice for high-mileage drivers. For a strong balance of price and longevity, the Champion Platinum plugs are a reliable replacement that won’t break the bank while still lasting longer than traditional copper.

If you have the 2.5L L4 engine, many kits focus on improved fuel efficiency, like the 4 Pack Iridium 96329. Since the L4 engine often requires less complex maintenance, these fine-wire iridium plugs maximize every drop of gas.

Finally, consider a Coil and Plug Combo Kit (like the ENA or Pack 6 kits). If your Impala is approaching 100,000 miles or if you are already experiencing engine misfires, replacing the coils along with the plugs, particularly in the difficult-to-reach rear bank of the V6, is a smart maintenance strategy that prevents future labor costs.

Final Verdict

Choosing the right spark plug comes down to your budget and how long you plan to keep your 2013 Impala.

The Safest Bet & Best Overall Performer: Go with the ACDelco GM Original Equipment 41-109 Iridium Spark Plug. It’s the standard the car was engineered for, guaranteeing perfect fitment, optimal heat range, and excellent longevity for the 3.6L V6.

Best Performance Upgrade & Longevity: The NGK # 6509 Iridium Spark Plug LTR6IX-11 wins here. NGK iridium technology is known worldwide for delivering a stable, strong spark under all conditions, giving your Impala a slight edge in throttle response.

Best Comprehensive Maintenance Kit (3.6L V6): If you’re doing a full tune-up and suspect old coils, the ENA Pack 6 Ignition Coil with 6 Iridium Spark Plug is the most valuable package, ensuring every component in your ignition system is refreshed for the next 100,000 miles.

Comprehensive FAQ: Best Spark Plugs For 2013 Chevy Impala

Q1: Does the 2013 Chevy Impala use 4 or 6 spark plugs?

The number of spark plugs depends entirely on your engine. The vast majority of 2013 Chevy Impalas came equipped with the 3.6L V6 engine, which requires six spark plugs. However, if you have a specific fleet model or an Impala Limited, you may have the 3.5L or 3.9L V6 (also 6 plugs) or possibly the 2.5L L4 engine (which requires 4 plugs). Always verify your engine size before ordering a set.

Q2: How often should I replace the spark plugs in my 2013 Impala?

For the factory-standard iridium plugs (like the ACDelco 41-109), the recommended replacement interval is generally 100,000 miles. If you choose high-quality aftermarket iridium plugs (like NGK or Champion Iridium), they should last just as long. If you opt for less expensive copper or standard platinum plugs, plan on changing them closer to the 30,000 to 60,000-mile range to maintain peak engine performance and fuel efficiency.

Q3: What is the difference between Iridium and Platinum plugs for the Impala?

Iridium and Platinum are both precious metals used for their durability and high melting points. Platinum plugs offer a long service life and good stability. Iridium is even harder and features a finer center electrode (often less than 0.6mm). This finer tip requires less voltage to fire and offers a more focused, consistent spark, leading to better cold starting and improved combustion efficiency over platinum. Iridium generally offers the longest lifespan.

Q4: Do I need to gap my new spark plugs before installation?

Most modern precious metal spark plugs (Iridium, Platinum) sold today, especially those designed for a specific application like the 2013 Chevy Impala 3.6L V6, are often advertised as “pre-gapped.” However, always verify the gap setting using a proper gauge against the specification listed in your owner’s manual or a service guide. Handling and shipping can cause the gap to shift, and installing improperly gapped plugs can lead to engine misfires and damage.

Q5: Should I replace the ignition coils along with the spark plugs?

If your 2013 Impala is showing signs of misfires, rough idling, or hard starting, replacing the coils is highly recommended, especially if you are near the 100,000-mile mark. The heat stress on the coils can cause them to fail prematurely. For the V6 engine, accessing the rear plugs is labor-intensive, so replacing the coils at the same time is a great way to save on future automotive repair costs.

Q6: Can the wrong spark plug cause poor fuel efficiency?

Absolutely. Worn-out spark plugs or plugs with the incorrect heat range or gap setting will result in incomplete combustion. This means the fuel-air mixture isn’t burning efficiently, directly leading to wasted gasoline and a reduction in fuel efficiency. Replacing old plugs with a reliable new set of Best Spark Plugs For 2013 Chevy Impala is one of the easiest ways to restore lost MPG.