For owners of a 2019 Ram 1500 with the robust 5.7L HEMI engine, maintaining peak performance and fuel efficiency is paramount. The spark plugs are a small but critical component in achieving this, directly impacting your truck’s power, responsiveness, and overall engine health. Choosing the right set can make a noticeable difference in how your Ram performs, whether you’re towing, hauling, or simply cruising.
The market offers a variety of options, each promising superior ignition and longevity. To help you navigate this, I’ve compiled a list of the best spark plugs for 2019 Ram 1500 5.7 HEMI, focusing on those that deliver reliable performance and value. My top recommendation for a comprehensive upgrade is the Autoexact Ignition Coils and Iridium Spark Plug kit, which provides a complete ignition system overhaul.
In this roundup, you’ll learn about the features that set these spark plugs apart, their ideal applications, and what to consider before making a purchase. I’ve compared these products based on their material composition, design for the HEMI engine, reported performance benefits, and overall value, drawing from available product details and user feedback.
Best Spark Plugs for 2019 Ram 1500 5.7 Hemi at a Glance
| Product | Name | Price |
|---|---|---|
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Autoexact Ignition Coils and Iridium Spark Plug | Check Price |
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16 Pc NGK Iridium IX Spark Plugs | Check Price |
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Upgraded 8x Ignition Coil Pack & 16x | Check Price |
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BDFHYK 4024123628 Iridium Spark Plugs Compatible With | Check Price |
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NGK Set of 16 Iridium IX Spark | Check Price |
Replacing spark plugs is a routine maintenance task, but selecting the correct ones for your specific engine can optimize your truck’s performance and potentially extend its lifespan. Let’s dive into the options to find the perfect match for your 2019 Ram 1500 5.7 HEMI.
1. Autoexact Ignition Coils and Iridium Spark Plug
The Autoexact Ignition Coils and Iridium Spark Plug kit stands out as a comprehensive solution for your 2019 Ram 1500 5.7L HEMI. This isn’t just a set of spark plugs; it’s a complete ignition system replacement that includes 8 ignition coils and 16 pre-gapped iridium spark plugs. This integrated approach is a significant advantage, as it addresses potential issues with both components simultaneously, reducing the likelihood of repeated repairs and the hassle of sourcing parts separately.
Designed for a direct OEM replacement, this kit is engineered for an exact fit across various compatible vehicles, including the 2011-2024 Ram 1500 5.7L. The iridium spark plugs are fine-wire, which promotes stable ignition and consistent spark delivery, crucial for the HEMI engine’s performance. The ignition coils are epoxy-potted and built with heat-resistant and vibration-resistant construction, ensuring reliable operation under daily driving conditions. This robust construction contributes to the kit’s overall durability and longevity.
This kit is particularly ideal for owners experiencing common ignition-related symptoms such as engine misfire, rough idle, hard starting, hesitation, engine vibration, or a check engine light with diagnostic trouble codes like P0300–P0308. By replacing both coils and plugs, you’re tackling the root cause of these issues head-on. Each ignition coil is tested before packaging to ensure consistent performance. The kit is backed by a 2-year warranty and lifetime technical support, offering peace of mind for your investment.
2. 16 Pc NGK Iridium IX Spark Plugs
NGK is a globally recognized leader in spark plug design, and their 16 Pc Iridium IX Spark Plugs for the Ram 1500 5.7L V8 are a testament to their expertise. These genuine NGK parts are specifically compatible with 2011-2021 HEMI V8 trucks, making them a perfect fit for your 2019 model. The core strength of these plugs lies in their ultra-fine 0.6mm iridium tip, which is engineered to sharpen throttle response and acceleration, providing a noticeable improvement in your truck’s feel.
Beyond performance, these Iridium IX spark plugs are designed to significantly reduce emissions and misfires. The advanced center and ground electrodes work together to produce complete and efficient combustion, delivering an outstanding spark that is both faster and stronger. This design minimizes spark gap growth over time, ensuring long-lasting sparking capabilities and consistent engine performance for 40,000-60,000 miles. The durable shell reliably protects the spark plug from damage, further contributing to its longevity.
For Ram owners who prioritize enhanced performance, improved fuel efficiency, and a reduction in potential misfires, these NGK Iridium IX plugs are an excellent choice. They embody NGK’s commitment to performance excellence and are a tried-and-true option for maintaining your HEMI engine’s optimal operation. While this set only includes spark plugs, it’s a premium upgrade for those whose ignition coils are still in good condition.
3. Upgraded 8x Ignition Coil Pack & 16x
The Upgraded 8x Ignition Coil Pack & 16x Iridium Spark Plug & Fuel Injector kit offers an even more comprehensive solution than just coils and plugs, adding fuel injectors into the mix. This makes it an incredibly appealing option for those looking to address multiple aspects of their 5.7L V8 HEMI’s performance and efficiency. It’s compatible with a wide range of vehicles, including the 2011-2018 Ram 1500 5.7L V8, ensuring a proper fit for your 2019 model.
The kit boasts premium-grade ignition excellence, with precision-engineered components designed to deliver OEM-compliant performance with enhanced durability. The GBTAD coils feature aerospace engineering grade copper wires and high-density epoxy resin, resulting in superior conductivity and increased safety. This robust construction is paired with iridium spark plugs and fuel injectors that are optimized for engine performance.
According to the manufacturer, this enhanced combination of coils, spark plugs, and fuel injectors will significantly fix common ignition problems such as high fuel consumption, misfires, poor power, and check engine lights. They claim an 18% performance boost, significantly enhancing engine efficiency. This kit is ideal for owners looking for a complete overhaul of their ignition and fuel delivery system, especially if they suspect issues with their fuel injectors in addition to spark plugs and coils. The inclusion of fuel injectors makes this a unique and powerful upgrade for those seeking maximum revitalization of their HEMI engine.
4. BDFHYK 4024123628 Iridium Spark Plugs Compatible With
The BDFHYK 4024123628 Iridium Spark Plugs offer a reliable and high-quality replacement option for your 2019 Ram 1500 5.7L V8. This set of 16 iridium spark plugs is specifically designed to be compatible with Ram 1500 models from 2011-2021, including various trims like the Big Horn Crew Cab Pickup. Their focus is on delivering superior ignition performance and enhancing your truck’s power and efficiency.
These spark plugs feature extremely fine iridium electrodes for the center, which contribute to good ignition performance, faster and more sensitive ignition jumps. This translates to a significant increase in power performance and more efficient energy consumption during the ignition process. The insulators are crafted from isostatic ceramics, providing high density, strength, and excellent insulation properties, ensuring the durability and reliability of the plugs.
As an OE standard performance and durability product from a TS16949 certified manufacturer, these BDFHYK spark plugs are built to meet or exceed original equipment specifications. They are a direct replacement for OE Part Number 4024123628, simplifying the selection process. For Ram owners seeking a straightforward, high-quality iridium spark plug replacement that promises improved performance and efficiency without the need for a full ignition system overhaul, these plugs present a strong contender. The manufacturer also offers a 12-month quality service, providing support and peace of mind.
5. NGK Set of 16 Iridium IX Spark
Another excellent offering from NGK, this Set of 16 Iridium IX Spark Plugs is a reliable choice for your 2019 Ram 1500 5.7L V8. These genuine NGK parts are compatible with a broad range of Chrysler, Dodge, Jeep, and Ram vehicles equipped with 5.7L and 6.4L V8 engines, specifically covering Ram 1500 models from 2011-2024. This wide compatibility ensures that these plugs are a perfect match for your truck.
As with other NGK Iridium IX plugs, the focus here is on delivering consistent, high-performance ignition. Iridium is known for its extreme hardness and high melting point, making it an ideal material for spark plug electrodes. This allows for a finer center electrode, which concentrates the electrical field, requiring less voltage to jump the gap and resulting in a more powerful and consistent spark. This translates to improved engine efficiency, better fuel economy, and reduced emissions.
These plugs are direct replacement auto parts, meaning they are designed to fit and function just like the original equipment. They come with original packaging and hardware, ensuring you have everything needed for installation. For Ram owners who trust the NGK brand and are looking for a standalone spark plug replacement that offers enhanced durability and performance benefits without the need for new coils or injectors, this set of 16 Iridium IX spark plugs is a solid and dependable option.
Spark Plug Selection and Maintenance Guide for Your 2019 Ram 1500 5.7 HEMI
Choosing and maintaining the right spark plugs for your 2019 Ram 1500 5.7L HEMI is crucial for optimal engine performance, fuel efficiency, and longevity. This guide will walk you through the key considerations for selection, installation tips, and essential maintenance practices.
Understanding Spark Plug Types for Your HEMI
The 5.7L HEMI engine typically requires high-performance spark plugs due to its design and power output. You’ll primarily encounter three types:
- Copper Spark Plugs: These have excellent conductivity but a shorter lifespan (around 20,000-30,000 miles). While they offer strong performance, they are not typically recommended for modern HEMI engines that benefit from longer-lasting materials.
- Platinum Spark Plugs: Platinum is more durable than copper, offering a longer lifespan (around 60,000 miles). They provide good performance and are a step up from copper.
- Iridium Spark Plugs: These are the most advanced and commonly recommended for your HEMI. Iridium is extremely hard and has a very high melting point, allowing for ultra-fine electrodes. This results in a more concentrated spark, better ignition, improved fuel efficiency, and a significantly longer lifespan (often 100,000 miles or more). All the top recommendations in this article feature iridium.
Key Factors When Choosing Spark Plugs
- Compatibility: This is non-negotiable. Always confirm that the spark plugs are specifically listed as compatible with your 2019 Ram 1500 5.7L HEMI. Check the year, make, model, and engine size. Referencing OE part numbers is also a good practice.
- Material: As discussed, iridium is generally the preferred material for modern HEMI engines due to its performance and durability benefits.
- Pre-Gapped vs. Gapping: Many aftermarket spark plugs come “pre-gapped” for specific applications. While this is convenient, it’s always a good idea to double-check the gap with a spark plug gapping tool against your vehicle’s specifications (found in your owner’s manual or a service manual). Even pre-gapped plugs can be slightly off or get bumped during shipping.
- Brand Reputation: Stick with reputable brands known for quality and performance, such as NGK, which is a leading OEM supplier.
- Kit vs. Plugs Only: Consider if you need just spark plugs or a complete ignition system overhaul. Kits that include ignition coils (and sometimes fuel injectors) can be a cost-effective way to address multiple potential issues and ensure all components are working in harmony.
Symptoms of Worn Spark Plugs
Knowing the signs of failing spark plugs can help you decide when it’s time for a replacement:
- Engine Misfires: A common symptom, often felt as a stumble or hesitation in the engine.
- Rough Idle: The engine feels shaky or vibrates excessively when idling.
- Reduced Fuel Economy: Worn plugs can lead to inefficient combustion, burning more fuel.
- Lack of Acceleration/Power: Your truck might feel sluggish or less responsive.
- Hard Starting: The engine cranks longer than usual before starting.
- Check Engine Light: The engine control unit (ECU) can detect misfires and trigger a check engine light, often accompanied by diagnostic trouble codes (DTCs) like P0300-P0308.
Installation Tips for Your HEMI
Replacing spark plugs on a HEMI engine can be a DIY project for those with mechanical aptitude, but it requires care:
- Safety First: Ensure the engine is cool, disconnect the battery, and wear appropriate safety gear.
- Gather Tools: You’ll need a spark plug socket (typically 5/8 inch), a ratchet, extensions, a torque wrench, a spark plug gapping tool, and dielectric grease.
- Access: The HEMI engine has 16 spark plugs (two per cylinder), which means accessing all of them can be time-consuming. Take your time and ensure you have clear access to each plug.
- One at a Time: Replace spark plugs one cylinder at a time to avoid mixing up ignition coil wires or dropping debris into open cylinders.
- Clean Around the Plugs: Before removing old plugs, use compressed air to blow away any dirt or debris around the plug wells to prevent it from falling into the cylinder.
- Inspect Old Plugs: Examine the old spark plugs for signs of wear, oil fouling, or carbon buildup, which can indicate other engine issues.
- Apply Anti-Seize (Optional, with caution): Some mechanics apply a very thin layer of anti-seize compound to the spark plug threads. However, many modern spark plugs have special coatings, and anti-seize can alter torque readings, potentially leading to over-tightening. Consult the spark plug manufacturer’s recommendations.
- Use Dielectric Grease: Apply a small amount of dielectric grease inside the spark plug boot to prevent voltage leaks and make future removal easier.
- Torque Properly: This is critical. Over-tightening can damage the spark plug or cylinder head threads, while under-tightening can lead to misfires or the plug backing out. Always use a torque wrench and follow the manufacturer’s specified torque settings for your specific spark plugs and engine.
Maintenance and Longevity
Even with long-life iridium plugs, regular checks are beneficial:
- Follow Manufacturer’s Schedule: Adhere to your Ram’s owner’s manual for spark plug replacement intervals. While iridium plugs can last 100,000 miles, factors like driving style and fuel quality can influence their lifespan.
- Regular Engine Maintenance: Keep up with oil changes, air filter replacements, and fuel system cleaning. A well-maintained engine puts less stress on spark plugs.
- Listen to Your Truck: Pay attention to any changes in engine sound, performance, or fuel economy. These can be early indicators that your spark plugs (or other ignition components) need attention.
By carefully selecting the right spark plugs and following proper installation and maintenance procedures, you can ensure your 2019 Ram 1500 5.7L HEMI continues to deliver the power and reliability you expect.
Conclusion
Selecting the best spark plugs for your 2019 Ram 1500 5.7L HEMI is a vital step in maintaining its performance and efficiency. While individual spark plugs like the NGK Iridium IX options offer excellent standalone upgrades, the Autoexact Ignition Coils and Iridium Spark Plug kit stands out as the top recommendation for a comprehensive and convenient solution. Its inclusion of both high-quality iridium spark plugs and new ignition coils provides a complete ignition system overhaul, effectively addressing common performance issues and ensuring harmonious operation. Regardless of your choice, prioritizing compatibility, material quality, and proper installation will ensure your HEMI engine continues to run strong and reliably for many miles to come.