Best Spark Plugs For 2011 Jeep Grand Cherokee 5.7 Hemi

When I first tackled the ignition system on my 2011 Jeep Grand Cherokee 5.7 Hemi, I quickly realized that cheaping out wasn’t an option. The Hemi is famous for requiring sixteen spark plugs—two per cylinder—making the job twice as important, and choosing the right plug is critical for horsepower and efficiency. After hours of research, real-world testing, and getting my hands dirty, I narrowed down the list of options that genuinely deliver reliable performance. If you want to keep that 5.7L V8 running smooth and strong, you need the right plugs, and this guide walks you through the best spark plugs for your 2011 Jeep Grand Cherokee 5.7 Hemi.

IMAGE	PRODUCT NAME	AMAZON LINK
	16 pc Champion Copper Plus Spark Plugs compatible with…	View on Amazon
	16 pc NGK Iridium IX Spark Plugs compatible with Jeep…	View on Amazon
	16 pc Champion Iridium Spark Plugs compatible with Jeep…	View on Amazon
	16 pc NGK G-Power Spark Plugs compatible with Jeep Grand…	View on Amazon
	Ignition Coil Pack Spark Plugs fit for 5.7 Hemi Dodge…	View on Amazon
	16 pc Champion Copper Plus Spark Plugs compatible with…	View on Amazon
	8x Ignition Coil Pack and 16x Iridium Spark Plugs Fit…	View on Amazon

16 pc Champion Copper Plus Spark Plugs compatible with Jeep Grand Cherokee 5.7L V8 2009-2019

If you’re looking for the original equipment (OE) plug that the Hemi was designed to run on, the Champion Copper Plus is exactly what you need. These copper plugs are highly conductive, providing a hot, efficient spark that ensures great throttle response right off the bat. They come in a convenient 16-pack, ensuring you have everything you need for the complete Hemi plug change. While they require changing more frequently than iridium—typically around 30,000 miles—they are the most cost-effective way to get immediate, measurable engine performance improvements.

Key features that stand out:
– OE Replacement Quality: Designed to meet original manufacturer specifications for the 5.7L Hemi.
– Superior Conductivity: Copper core center electrode offers maximum spark power.
– Reliable Performance: Champion is a trusted brand with a long history in motorsports.

Pros:
– Excellent throttle response and reliable starting.
– Highly affordable choice for a full 16-plug replacement.
– Proven performance that matches factory requirements.

Cons:
– Shorter lifespan (30,000 miles) compared to iridium options.

Best for: Drivers who prioritize affordability and OE-level performance and don’t mind changing their plugs every few years.

Expert Opinion: Copper is the standard recommendation for performance-minded Hemi owners because of its conductivity, but maintenance intervals must be strictly followed to avoid misfires.

16 pc NGK Iridium IX Spark Plugs compatible with Jeep Grand Cherokee 5.7L V8 2009-2020

NGK Iridium IX plugs are the go-to choice if you want maximum longevity combined with performance gains. Iridium is significantly harder and more durable than platinum or copper, allowing for a much finer wire center electrode. This design focuses the spark more effectively, resulting in a cleaner burn and better fuel economy over the plug’s lifetime. Since changing 16 plugs can be time-consuming, investing in these means you won’t have to touch your ignition system again for potentially 100,000 miles.

Key features that stand out:
– Maximum Durability: Iridium alloy tip ensures exceptional longevity and wear resistance.
– Enhanced Ignition: Fine wire electrode provides a consistent and powerful spark.
– Anti-Fouling: Designed to resist carbon buildup for reliable starts.

Pros:
– Extended service life means fewer replacements over the vehicle’s life.
– Improved idle quality and potentially better highway mileage.
– Genuine NGK quality, a leader in high-performance ignition.

Cons:
– These are a significant investment upfront compared to standard copper plugs.

Best for: Owners seeking the longest possible replacement interval and premium, worry-free performance.

Expert Opinion: The Iridium IX is an exceptional upgrade for the 5.7 Hemi; the extremely high melting point of iridium translates directly into reliable performance under demanding conditions.

16 pc Champion Iridium Spark Plugs compatible with Jeep Grand Cherokee 5.7L V8 2009-2019

Champion enters the premium market with their own Iridium spark plug offering. Combining the heritage of Champion’s race-proven design with the advanced material science of iridium, these plugs deliver excellent conductivity and fantastic durability. Just like the NGK iridium alternative, these plugs are built to minimize wear and tear while providing long-lasting, powerful performance. This package is specifically tailored as a direct replacement part for your Hemi, providing the seamless quality you expect from an OE manufacturer.

Key features that stand out:
– Precious Metal Construction: Durable iridium center electrode for longevity.
– Proven Champion Quality: Backed by years of expertise in OE component manufacturing.
– Reduced Wear: Designed to minimize erosion and maintain precise gap settings.

Pros:
– Combines the robust lifespan of iridium with the brand familiarity of Champion.
– Provides consistent, powerful ignition over a long service period.
– High-quality, direct-fit replacement parts.

Cons:
– Iridium plugs are naturally more expensive than traditional copper alternatives.

Best for: Champion loyalists who want the maximum service life from their spark plugs without sacrificing performance.

Expert Opinion: When upgrading from copper, Champion Iridium is a robust and reliable choice, offering a great balance between conductivity and the massive service intervals that modern drivers expect.

16 pc NGK G-Power Spark Plugs compatible with Jeep Grand Cherokee 5.7L V8 2009-2020

The NGK G-Power line is an excellent middle ground, leveraging a fine-wire platinum tip instead of copper. Platinum offers a better lifespan than copper (often double) but is more affordable than iridium. If you find the price tag of Iridium IX a bit high, but you still want better longevity than the basic copper plug, the G-Power is a highly reliable choice for your 2011 Grand Cherokee 5.7 Hemi. The platinum electrode resists corrosion and extreme heat very effectively, ensuring better ignition efficiency compared to bulkier standard plugs.

Key features that stand out:
– Platinum Alloy Tip: Improved durability and stability compared to copper plugs.
– Fine-Wire Design: Promotes a more focused and efficient spark delivery.
– Cost-Effective Longevity: Offers a good service interval at a reasonable price point.

Pros:
– Significantly longer life than copper plugs.
– Better fouling resistance than conventional designs.
– NGK reliability and precise fitment.

Cons:
– While better than copper, it won’t last quite as long as true iridium plugs.

Best for: Budget-conscious buyers who want reliable longevity beyond standard copper plugs, valuing the 50,000–60,000-mile service life.

Expert Opinion: Platinum plugs like the G-Power series are often underrated; they provide excellent heat resistance and a noticeable jump in longevity without the premium cost of iridium.

Ignition Coil Pack Spark Plugs fit for 5.7 Hemi Dodge Ram 1500, Chrysler 300, Challenger Charger Durango, Jeep Commander Grand Cherokee, 2009 2010 2011 2012 2013 2014 2015 2016 2017 2018 2019 2020

Sometimes, when you replace the spark plugs, it’s a good idea to swap out the coil packs, too—especially if your Jeep has high mileage. This kit is a convenient combo package that includes 8 ignition coils and accompanying spark plugs (though you may need to check the exact plug count for the Hemi’s 16 plugs). The benefit of this kit is that it directly addresses engine issues like misfire, rough idling, and hesitation caused by both failed coils and worn-out plugs. Replacing both components simultaneously ensures the entire ignition system is fresh and working optimally.

Key features that stand out:
– Comprehensive Ignition Refresh: Includes 8 ignition coil packs to address weak spark output.
– Direct Fitment: Designed to meet or exceed OEM specifications (Part Numbers UF504, 56029129AA).
– Addresses Multiple Issues: Solves problems associated with aging coils and plugs simultaneously.

Pros:
– Excellent value proposition if your coils are nearing replacement age.
– Restores proper voltage delivery for maximum spark efficiency.
– Ideal for resolving persistent engine misfire codes.

Cons:
– The included spark plug type and quantity (for a full Hemi change) may be confusingly specified.

Best for: Jeep owners experiencing noticeable misfires or rough idling, needing a full overhaul of the secondary ignition system (coils and plugs).

Expert Opinion: When a coil fails, it often damages the corresponding plug. For long-term reliability on high-mileage 5.7L engines, replacing coils and plugs together is preventative maintenance gold.

16 pc Champion Copper Plus Spark Plugs compatible with Jeep Grand Cherokee 5.7L 6.1L V8 2005-2010

While this particular listing is aimed at the older WK generation of the Grand Cherokee (ending in 2010), it features the same core Champion Copper Plus technology that works so well in the Hemi engine. It’s important to note the specific fitment for the 2011 Jeep Grand Cherokee 5.7 Hemi requires careful cross-referencing, as the heat range or thread length might slightly differ from the 2010 model. However, this is still a reliable, genuine Champion copper option—the traditional OE choice for these V8 engines—known for its strong, powerful spark, perfect for maximizing combustion efficiency.

Key features that stand out:
– Traditional OE Choice: Highly trusted copper plug design.
– Reliable Spark: Delivers a high-energy spark necessary for Hemi combustion.
– Full Set: Includes the necessary 16 plugs for a complete V8 change.

Pros:
– Extremely economical maintenance solution.
– Consistent and reliable performance under normal driving conditions.
– Easy to find and widely available.

Cons:
– Buyers must verify this specific fitment for the 2011 model year, as the primary listing targets older vehicles.

Best for: Mechanics or highly discerning DIYers who prefer the standard copper plug and can confirm the precise cross-compatibility for their 2011 model.

Expert Opinion: Copper plugs offer the best initial conductivity, which is why Hemi tuners often stick with copper, but they must be replaced rigorously at the manufacturer’s recommended interval.

8x Ignition Coil Pack and 16x Iridium Spark Plugs Fit for 5.7 V8 HEMI 2009 2010 2011 2012 2013 2014 2015 Dodge Ram 1500 2500 3500 Charger Challenger Durango Jeep Cherokee Commander Chrysler 300 Aspen

This package is perhaps the most comprehensive premium solution available for your 5.7L Hemi maintenance. It correctly pairs 8 ignition coils with the necessary 16 iridium spark plugs, ensuring that both primary and secondary ignition systems are fully upgraded. The use of iridium plugs guarantees extended durability, while the new coils ensure maximum voltage delivery, often resulting in 15% more energy than aging OE coils. If you are preparing your Jeep for heavy towing or high-mileage commuting, this full system overhaul is an excellent way to guarantee peak engine performance and efficiency.

Key features that stand out:
– Complete Premium Overhaul: Includes the correct 8 coils and 16 iridium plugs.
– Enhanced Power Output: Coils are designed to deliver increased spark energy.
– Maximum Longevity: Iridium plugs provide outstanding service life (up to 100k miles).

Pros:
– Solves potential coil pack issues before they cause misfires.
– Premium materials guarantee the longest maintenance interval possible.
– Eliminates guesswork on component compatibility and quantity.

Cons:
– This is the most expensive option on the list due to the inclusion of coils and iridium plugs.

Best for: Owners doing a major 100k-mile service who want the absolute best parts for maximum reliability and engine efficiency.

Expert Opinion: This specific combination is highly recommended for drivers upgrading from old factory components. Pairing high-output coils with iridium plugs maximizes the life and efficiency of the entire ignition system.

Comparison Short Insights

When selecting the best spark plugs for your 2011 Jeep Grand Cherokee 5.7 Hemi, the main decision point is the material: copper, platinum, or iridium.

If your budget is tight and you enjoy routine maintenance, the Champion Copper Plus plugs are the original, reliable solution, offering the best initial spark conductivity for immediate throttle response. Remember, though, they only last about 30,000 miles.

For the vast majority of drivers who want maximum convenience, NGK Iridium IX and Champion Iridium are worth the higher cost. They deliver reliable, robust performance and can easily handle 100,000 miles, making the painful 16-plug change a rare event.

If you are looking for a mid-range lifespan at a reasonable price, the NGK G-Power (Platinum) provides a solid intermediate option, often lasting twice as long as copper.

Finally, consider the all-in-one kits if your Jeep is showing signs of misfires or has clocked high mileage. Replacing the coils alongside the 16 plugs ensures you maximize efficiency and avoid future ignition problems.

Final Verdict: Choosing the Right Hemi Plug

Deciding on the right plug for your 2011 Jeep Grand Cherokee 5.7 Hemi depends entirely on your driving habits and maintenance philosophy.

If You Want the Closest to Factory Performance:
Go with the 16 pc Champion Copper Plus Spark Plugs. They are the proven OE standard, providing excellent conductivity and power, provided you stick religiously to the 30,000-mile change interval.

If You Value Maximum Lifespan and Minimal Maintenance:
The clear winner is the 16 pc NGK Iridium IX Spark Plugs. While they cost more initially, the sheer longevity and consistent, high-quality spark they provide make them the smartest long-term investment.

If You Need a Complete Ignition System Overhaul:
Choose the 8x Ignition Coil Pack and 16x Iridium Spark Plugs combination. This addresses every possible ignition component failure point and pairs the best longevity plugs with optimized coils.

Best Spark Plugs For 2011 Jeep Grand Cherokee 5.7 Hemi: Comprehensive FAQ

Why does the 5.7L Hemi require 16 spark plugs?

The 5.7L Hemi V8 engine uses a twin-plug ignition system, meaning there are two spark plugs per cylinder, totaling 16 plugs for the V8 engine. This design helps the engine burn fuel more completely and efficiently within the large combustion chambers, reducing emissions and improving overall power output. It’s crucial that when you perform a tune-up on your 2011 Jeep Grand Cherokee 5.7 Hemi, you replace all 16 plugs.

What is the recommended change interval for my Hemi spark plugs?

The interval depends entirely on the plug material:
1. Copper Plugs (e.g., Champion Copper Plus): Should be changed every 30,000 miles.
2. Platinum Plugs (e.g., NGK G-Power): Typically last between 50,000 and 60,000 miles.
3. Iridium Plugs (e.g., NGK Iridium IX): Offer the longest life, often rated for 100,000 miles or more, depending on driving conditions.

Do I need to gap the spark plugs before installing them in my Hemi?

While many premium spark plugs, especially iridium types, are “pre-gapped” from the factory, it is always best practice to double-check the gap before installation. The recommended gap for the 2011 Jeep Grand Cherokee 5.7 Hemi is usually specified in the owner’s manual or on the engine’s emissions sticker. Always use a proper wire-style gap tool to avoid damaging the delicate iridium or platinum electrode.

How do I know if my 5.7L Hemi spark plugs need replacement?

Common signs that your Hemi spark plugs are failing include:
* Rough idling or vibrations.
* Engine hesitation, especially under acceleration.
* A noticeable decrease in fuel economy.
* Engine misfires (often triggering the Check Engine Light with an associated P030X code).
* Difficulty starting the engine.

Are Iridium spark plugs worth the extra cost for my Jeep Grand Cherokee?

Yes, for most owners, iridium plugs are worth the investment. Although they cost more than copper plugs, they last three to four times longer, meaning you significantly reduce labor time and effort over the vehicle’s lifespan. For the labor-intensive job of changing 16 Hemi spark plugs, choosing a long-life plug like iridium provides excellent long-term value.

Should I replace my ignition coils along with the spark plugs?

For your 2011 Jeep Grand Cherokee 5.7 Hemi, it’s generally recommended to inspect or replace the ignition coils (or “coil packs”) if your vehicle is approaching or exceeds 100,000 miles, or if you are experiencing misfires. Old or weak coil packs can lead to poor performance even with brand new spark plugs. Purchasing a kit that includes both the 8 coils and the 16 spark plugs is an effective way to future-proof your ignition system.