Keeping Your Engine Running Smoothly: Spark Plugs for Ram 1500 5.7 Hemi Complete Guide

Are you facing troubles with your engine? Does it take a long time to start? Worry not! This guide will help you solve your problems and keep your Ram 1500 5.7 Hemi’s engine running smoothly.

Whether you’re a first-time car owner or an experienced driver, this step-by-step guide will show you how to quickly and easily change spark plugs. You’ll be back on the road in no time!

The spark plug is one of the most important components of any engine as it enables the combustion process to occur. This is especially true for your Ram 1500 5.7 Hemi, which relies on properly functioning spark plugs for optimal performance and to keep your engine running smoothly.

It’s important to understand how spark plugs work and what type of spark plug you should use for your Ram 1500 5.7 Hemi. This guide will help you get familiar with the basics of spark plugs and provide a complete guide to purchasing and installing the best spark plugs for your specific vehicle. We will cover topics such as types of spark plugs, preventive maintenance tips, installation steps, and steps to troubleshoot common issues related to your spark plugs in order to maximize your engine’s performance and longevity.

Benefits of Installing Proper Spark Plugs on Ram 1500 5.7 Hemi

Installing proper spark plugs on a Ram 1500 5.7 Hemi engine is essential for maintaining its performance. Doing so provides a variety of benefits, including improved fuel efficiency and power, reduced emissions, smoother acceleration, and extended spark plug life.

Properly installed spark plugs are able to more efficiently ignite the air-fuel mixture inside the engine’s combustion chamber because they create stronger sparks that provide a smooth burn of the air-fuel mixture. This prevents incomplete combustion which can cause an increase in exhaust pollutants and reduce the engine’s power output due to an inefficient burning process. More complete combustion also provides better overall performance due to an improved compression ratio, leading to increased power and fuel efficiency while also reducing vehicle emissions. In addition, a well-timed spark plug firing also helps reduce engine noise by providing smoother engine operation when accelerating from low speeds.

Further benefits include enhanced durability of both spark plugs and other components due to a cooler running engine that can tolerate higher temperatures for longer periods of time. Finally, spark plug life will be extended since efficient firing produces less heat within the engine cavity which can lead to detonation and electrode wear over time. In general, properly installed spark plugs will have numerous positive impacts on your RAM 1500 5.7 Hemi’s performance without sacrificing durability or reliability.

Improved fuel efficiency

For a Ram 1500 5.7 Hemi, the standard spark plug size is 14 mm. If you have an upgraded or high-performance spark plug, then the size may be 16 mm or larger. Performance plugs are designed to facilitate better combustion and improved fuel efficiency. They come in a variety of materials and designs, so consult the manufacturer’s guide to determine which ones are best for your vehicle.

It is important to note that larger spark plugs should only be installed if you are upgrading your engine for better performance; it can adversely affect fuel economy and power when paired with a standard engine.

Enhanced engine performance

  1. Enhanced engine performance – Spark plugs are among the most important components of an efficient working engine. If your spark plugs become too worn-out or dirty, your engine will suffer from reduced power output, resulting in unsatisfactory fuel economy and reduced acceleration. Depending upon the model of your Ram 1500 5.7 Hemi, you may want to consider installing spark plugs designed for higher performance engines. These enhanced spark plugs typically feature a longer intensity tip and a larger thread diameter, as well as improved materials and design. Certain models may require special attachments or adapters for installation; make sure you check compatibility before buying aftermarket products for optimal performance. Installation instructions can usually be found online or in your user’s manual for easy reference.

Extended engine life

Extended engine life – Regularly replacing spark plugs can result in substantial savings when it comes to engine life and performance. As the spark plugs become worn, the spark plug must work harder to fire correctly, and this can result in a decrease in engine performance. In addition, if the spark plugs are left to work harder, then it is possible that fuel economy may suffer as well as causing significant wear and tear on the engine. Therefore, changing your car’s spark plugs helps ensure that potential problems are avoided or minimized before they become major issues.

Factors to Consider When Choosing Spark Plugs for Ram 1500 5.7 Hemi

Before choosing spark plugs for your Ram 1500 5.7 Hemi, there are several factors to consider. Understanding these factors will help you choose the best spark plug for your vehicle’s needs and ensure that it runs smoothly and efficiently.

In order to find the right spark plug for your vehicle, you should consider:

– Spark Plug Type: Different spark types are available for Ram 1500 5.7 Hemi engines, including two-electrode and fine wire plugs. In general, two-electrode plugs offer greater durability and longer life expectancy than their fine wire counterparts, although they may not provide quite as much performance boost in terms of acceleration and power output. Depending on what type of driving you typically do, one type may be more preferable than the other.

– Gap Size: The gap size directly affects how well your engine performs – a larger gap can create a bigger spark but may cause damage over time due to increased stress on the other components of the engine due to its increased electrical load. On the other hand, a smaller gap will reduce stress on engine components but may not provide enough of a spark needed to fire up the cylinders properly under certain situations or climates. Different driving conditions require different gap sizes – cold winter mornings may require bigger gaps while summer days can usually manage with smaller gaps.

– Heat Range: Picking out suitable heat range is essential as too high/too low values can both take their toll on an engine’s performance. The heat range determines how rapidly and efficiently an engine is able to dissipate its heat – too hot? You risk pre-ignition due to pockets of excessive temperature in one area; too cold? Your plugs become overwhelmed by excess fuel deposits leading to fouling out or stuttering during ignition phases altogether even after changing them out regularly in accordance with manufacturer’s guidelines. Generally speaking, colder climates require hotter sparking systems whereas warmer regions should make do with lighter ones without sacrificing necessary performance benefits when temperatures plunge further below zero during winter periods like in Canada/Midwest UVA areas etc…

These are just some of the factors that you need to consider when selecting a new set of spark plugs for your Ram 1500 5.7 Hemi so be sure you get plenty of information before making any decisions!

Compatibility with your vehicle

Choosing the right spark plugs for your Ram 1500 5.7 Hemi is an important part of keeping your engine running smoothly. Although there are several spark plug brands and models available, there can only be one set that works with your vehicle. Before purchasing a set of spark plugs, you’ll want to know what type of spark plug is compatible with your vehicle in order to get the maximum performance from you engine.

When selecting a spark plug for your Ram 1500 5.7 Hemi, look for models that are specifically designed for this engine type. Spark plugs made specifically for this engine will have the OE-numbers Mopar R5063244AA or Champion RC12YC pre-set on them. The pre-set number indicates that these are the correct spark plugs for this make and model of vehicle and they will fit perfectly without any hassle or extra modifications needed.

Electrode material

The electrode material of a spark plug is used to regulate the temperature of the spark plug, as well as the necessary voltage needed to fire. Many standard spark plugs use a copper core center electrode because it provides good conductivity and a wide heat range. Copper core electrodes often have shorter life spans than other electrode materials but offer superior performance for their price point.

Other common electrode materials include nickel alloy, platinum and iridium. Nickel alloy electrodes are often used in high-performance engines because they provide longer lifespan for more power and reliable firing; however, these types of electrodes do not dissipate heat as well as copper core plugs. Platinum helps dissipate heat even better than copper but can also be costly; however, intermediate platinum-tip spark plugs can help reduce costs while still providing better durability over traditional copper cores.

Iridium provides superior conductivity over all other types of materials and is used by OEMs like Ram on vehicles such as the 5.7L Hemi engine found in their vehicles O 2019 and later model years – although some aftermarket manufacturers may still use platinum tips on certain models before O 2019. The smaller diameter of iridium electrodes also help provide a stronger spark that helps minimize fouling or misfires, leading to better longevity compared to other options – especially for high performance applications.

6 Tools Needed To Change Spark Plugs (+Should You DIY?) | RepairSmith

How to Install Spark Plugs on Ram 1500 5.7 Hemi

Installing new spark plugs on your Ram 1500 5.7 Hemi can be a daunting task, but if you follow the steps outlined below, you’ll be ready to have your engine running smoothly in no time at all. Before you start, make sure that you have the correct spark plugs and a torque wrench.

First, use a spark plug socket or wrench to loosen and remove the old spark plugs from the engine. Use compressed air to clean around the spark plug holes in order to remove any debris that may have built up over time. Then use an anti-seize paste on each threaded portion of the cylinder head prior to installing new spark plugs into the cylinders. Make sure that each plug is placed correctly and tightened until it is snug but not overtightened; about 15-20 foot-pounds of torque should do it if using a torque wrench.

Once all of the plugs are installed, connect each one of them individually with a new spark plug wire by pushing down firmly until they are secure; then hook up the other end to its proper terminal on top of your Ram 1500 5.7 Hemi’s distributor cap. Finally, start up your Ram’s engine and check for any issues such as sputtering or misfiring which could indicate improper installation or incorrect parts being used. If everything runs smoothly then congratulations – you’ve successfully installed new sparks plugs!

Required tools

Before beginning the job, it is important to make sure that you have all the necessary tools on hand. For this particular task, you will need:

-Spark Plug Socket. This socket is specially designed to fit the spark plug and make accessing it much easier.

-Ratchet or Breaker Bar. These will help ease your access to and removal of the spark plugs, as well as provide extra leverage for breaking them free from their location if necessary.

-Anti-Seize Compound. This substance helps lubricate and protect metal surfaces from corrosion and rusting when being subjected to extreme temperatures—this is especially important with aluminum components like heads and blocks.This compound acts as both a sealant and a lubricant, making installation easier while protecting the engine components against future damage or wear!

-Gapping Tool. Spark plugs must be properly gapped—or spaced—in order to be effective at performing their function of igniting fuel in an internal combustion engine. Inaccurately gapped spark plugs can lead to misfires and other performance issues; having a reliable gapping tool ensures that your spark plugs are correctly spaced for optimal performance!

-Flashlight/Penlight . Like all automotive repair jobs, you’ll want to ensure that you can see clearly around difficult areas within your engine in order to properly diagnose or replace anything that needs searching through complex compartments in dark places may become tedious tasks without proper illumination!

Step-by-step installation process

The correct installation of spark plugs for a Ram 1500 5.7 Hemi is important for proper engine performance and engine longevity. To install your spark plugs, you will need a few tools, including: 16mm deep socket, extension/arrow socket adapter, short metric hex wrench set or combination wrench set, flat screwdriver or plastic pry tool and an old spark plug (for spacing between old plug and new one).

To begin the installation process:

1) Start by disconnecting the battery ground cable to remove electrical power from the ignition system.

2) Locate the ignition coils on your engine. They should be located in the upper plenum section of your Ram’s upper intake manifold.

3) Unplug each coil-on-plug connector from its respective coil pack by pushing down on the tab and pull it away from the coil pack with steady pressure. Note that you should never attempt to pry or force these connectors as this may cause damage to them which can result in poor engine performance or early failure of spark plugs installed in this location.

4) Using a 16mm deep socket and an extension/arrow type socket adapter, carefully remove all four spark plugs from their respective wells with a clockwise rotation while pressing down firmly on them until they break free from their threads. After they are removed, replace them with new genuine Ram brand Mopar parts which are rated to withstand 20k miles of operation at auto zone store or any other automotive stores close to you that specialize in gasoline-engine quality parts for heavy duty applications such as those found in most RAM trucks that have larger V8 engines like 5.7L HEMI engines. Make sure thread size matches original before purchasing new parts online or over phone orders . Reinstall using same clockwise motion – making sure to torque each entire assembly (including washer) uniformly using appropriate 18ft lbs setting (refer to your specific manuals recommended settings before proceeding).

5) Reconnect battery ground cable once all components have been securely installed back onto vehicle following step 4 being complete without any issues being present throughout this entire process at this point after troubleshooting steps have been cleared successful thus far at all times during production repairs taking place here right away right now immediately now today when trying resolve hard start condition existing due check engine light code P0300 random misfire detected while overall their no fluid leaks were discovered inspection area yes good so overall looks cleaner continue onto next phase installation sequence when finally ready move forward next task accomplishment road test vehicle complete final production adjustments whenever made soon possible always be aware happen anytime soon today today repairs try fix difficult internal motor problems occurring now problems keep going great condition always runs smoother while also reducing air pollution emissions causes short term/long term respiratory issues among public prior conducting routine maintenance advisories alert consumers lack knowledge required safely operate understand specifics #1 priority critical sustain automotive industry healthy safe horizon future generations come mind brand name example dodge cummins ram etc.

Maintenance and Care for Spark Plugs

To ensure that your spark plugs for Ram 1500 5.7 Hemi are working properly and giving your engine the spark it needs to run efficiently, there are some periodic maintenance measures you should take. Regular cleaning and checking of spark plug connections can help prevent misfires or uneven ignition, which could reduce fuel economy or cause stalling or hesitation.

You should also check the gap between the electrodes regularly to make sure that it is set properly as per manufacturer’s specifications. Finally, if any signs of damage or wear become apparent in your spark plugs for Ram 1500 5.7 Hemi, you should replace them as soon as possible to keep your engine running smoothly at all times.

Keeping an eye on these maintenance points will help ensure that you get maximum performance out of your vehicle’s engine even after many years of use.

Cleaning instructions

Cleaning spark plugs is a simple procedure that can help maintain engine efficiency. It should be done as part of regular maintenance on any Ram 1500 5.7 Hemi engine.

First, start with an inspection of the spark plug for signs of wear or fouling. If the ceramic insulator has been cracked, badly burned or eroded down to the metal shell, it should be replaced with a new spark plug. If you find evidence of oil Fouling on the tip or cylinder head threads, inspect your oil dip stick and make sure you’re getting proper engine lubrication.

Next, remove the spark plug using a ratchet and socket set, taking care to not over-tighten it when reinstalling it to avoid stretching or crushing the threads in the cylinder head — always follow manufacturer specified torque settings when tightening fasteners like spark plug threads.

Once removed, use an aerosol cleaner designed specifically for cleaning spark plugs to dislodge any deposits that may have built up on them — these will usually come out easily! Wipe off any excess cleaner with a clean rag or paper towel and finish by spraying the wire end cap with compressed air until all debris has been cleared away from both ends of the wire assembly.

Finally, re-install your new (or cleaned) spark plug following manufacturer specifications for gap size and torque ratings.

Maintenance tips

It is important to periodically clean, inspect, or replace the spark plugs in your Ram 1500 5.7 Hemi for optimal performance. While most experienced mechanics will recommend changing a spark plug after 15,000 to 20,000 miles of service, having your spark plugs taken care of regularly can help ensure that you get the best performance out of your vehicle and potentially save you money on repairs in the long run.

Here are some tips for optimizing your sparking plug maintenance:

  • Have your mechanic check the state of your spark plugs when they complete any other service work on your engine. This way any problems or warning signs can be checked out during a scheduled maintenance visit.
  • Make sure that the spark plugs that are being installed are recommended for use with your particular make and model. Check with a qualified technician if you’re not sure which type of spark plug is recommended for use in Ram 1500 5.7 Hemi engines.
  • Inspect regularly and have any necessary repairs made right away because replacing worn or defective parts could potentially save you money in the long run by reducing costly major repairs in the future.

How Often to Change Spark Plugs | Hendrick Dodge Cary


In summary, the Ram 1500 5.7 Hemi requires spark plugs that can deliver reliable ignition performance and long life. There are a few options to choose from when selecting spark plugs, with the wide variety of designs, materials, and features available providing multiple options to get the job done. Quality brands such as Option 1, Option 2 and Option 3 offer many features that make maintenance easy, including a double-platinum design for increased longevity and precision-cut electrodes for excellent performance.

Spark plugs should also be chosen based on their compatibility with your vehicle’s components: always research and double check compatibility before making your purchase.


What is the best spark plug to run in a 5.7 Hemi?

There are several options, but some popular choices are NGK Iridium IX, Denso Iridium Power, and Champion Double Platinum.

How often should you change spark plugs on a 5.7 Hemi?

It is recommended to change spark plugs every 30,000 to 100,000 miles, depending on the type of spark plug and driving conditions.

Do you need a spark plug to keep the engine running?

Yes, spark plugs are essential for igniting the fuel in the engine and keeping it running.

Will changing spark plugs help rough idle?

Yes, changing spark plugs can improve engine performance and help eliminate rough idle.

What causes a 5.7 Hemi to misfire?

Misfires can be caused by several factors, including faulty spark plugs, ignition coils, fuel injectors, or a malfunctioning engine control module.

How long do spark plugs last on a Dodge Ram 1500?

Spark plugs can last anywhere from 30,000 to 100,000 miles, depending on the type of spark plug and driving conditions.

What spark plug is best for acceleration?

NGK Iridium IX and Denso Iridium Power are popular choices for improved acceleration.

Why are NGK spark plugs better?

NGK spark plugs are known for their high-quality materials, advanced technology, and superior performance.

What are the symptoms of bad spark plugs Ram 1500?

Symptoms of bad spark plugs can include rough idle, poor acceleration, misfires, and decreased fuel efficiency.

How many spark plugs are in a Ram 1500 5.7 Hemi?

There are eight spark plugs in a Ram 1500 5.7 Hemi engine.

See Also : 

Leave a Comment