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If you own a 2007 Dodge Ram Hemi, spark plugs are not a detail to overlook. On a 5.7L Hemi engine, a full replacement usually calls for 16 plugs, which makes choosing the right kit important for maintenance, idle smoothness and throttle response.
In this review you will see why the NGK LZTR4AIX-11 #2313 Iridium Spark Plugs may be worth considering if your vehicle matches the listed application. You will also see what to check before buying, including the gap, exact compatibility and the small number of reviews available.
The goal is simple: to help you decide whether this iridium plug kit suits your 2007 Dodge Ram Hemi, without overstated promises or claims that are hard to verify.
Quick Verdict
|
Criteria |
Verdict |
|---|---|
|
Best use |
A complete spark plug replacement on a compatible 5.7L Hemi engine. |
|
Material |
Iridium tip, useful if you want a plug built for good wear resistance. |
|
Compatibility |
Listed for several 5.7L Hemi engines from Dodge, Chrysler and Jeep, 2003-2008. Always confirm your own vehicle before buying. |
|
Watch out for |
The stated gap should still be checked before installation. |
|
Current price |
Check directly on Amazon, as prices and availability change. |
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Vehicle Fitment-1: Spark Plug Compatible with Chevy Cavalier 2002-2005 L4 2.2L, Cobalt 2008-2010 L4 2.0L, HHR 2008-2010 L4 2.0L, Malibu 2013-2015 L4 2.5L, Malibu Limited 2016 L4 2.5L, Impala 2014-2019 L4 2.5L, Colorado 2015-2022 L4 2.5L, Blazer 2019-2021 L4 2.5L. Spark Plugs Compatible with Dodge Ram 1500 2003-2008 V8 5.7L, Ram 2500 2003-2008 V8 5.7L, Ram 3500 2003-2008 V8 5.7L, Durango 2004-2008 V8 5.7L, Charger 2006-2008 V8 5.7L, Magnum 2005-2008 V8 5.7L. Bujías para Carro Compatible with Jeep Grand Cherokee 2005-2008 V8 5.7L, Commander 2006-2008 V8 5.7L, Grand Cherokee 2006-2010 V8 6.1L
Check Before You Buy
- Confirm that your 2007 Ram is actually fitted with the 5.7L Hemi engine.
- Compare the part number against your manual, your old plug model, or data from a reliable parts catalog.
- Check the recommended gap for your engine before installation, even when the plugs are listed as pre-gapped.
- Make sure you are buying a complete 16-plug kit if you are doing a full replacement.
- If you are not comfortable reaching the plugs on a Hemi, plan on having a mechanic install them.
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NGK LZTR4AIX-11 #2313 Iridium Spark Plugs
If your 2007 Dodge Ram Hemi matches the listed application, this NGK LZTR4AIX-11 #2313 kit has one immediate advantage: it bundles all 16 plugs needed for a full replacement on a 5.7L Hemi engine.
The fine iridium tip is the main selling point. It can help maintain a steady spark when the plug suits the engine and is installed correctly. That is useful if you want to replace worn plugs, address a rough idle tied to ignition, or bring your maintenance back up to date.
The point you should not ignore is the gap. Even though these plugs are listed as pre-gapped to .044″, you should always check the gap with a proper gauge before installation and compare it against your vehicle’s specifications.
Who This Kit Makes the Most Sense For
- You have a 2007 Dodge Ram with a compatible 5.7L Hemi engine.
- You want to buy all 16 plugs at once rather than ordering them individually.
- You prefer an iridium plug over a standard option, while still checking compatibility.
- You are doing preventive maintenance, or replacing worn plugs that cause misfires, hard starts or an unstable idle.
Skip It If
- You are not certain your engine is the 5.7L Hemi.
- Your manual or your mechanic recommends a different specific part number.
- You want a strictly OEM plug rather than an iridium replacement option.
- You cannot check the gap before installation.
Pros and Cons
|
Pros |
Cons |
|---|---|
|
✅ Complete 16-plug kit, practical for a full 5.7L Hemi replacement |
❌ Compatibility must be confirmed against your exact year, engine and configuration |
|
✅ Iridium tip built for good wear resistance |
❌ The gap must be checked before installation, even though the product is listed as pre-gapped |
|
✅ Can help restore a steady spark if your old plugs are worn |
❌ Few reviews available in the supplied content, so check recent Amazon reviews |
|
✅ Clear part number for buyers searching NGK LZTR4AIX-11 #2313 |
Customer Reviews
The feedback supplied with the listing is positive, but the review volume looks limited. That is a good early signal, though not enough on its own to decide. Before buying, check recent Amazon reviews, especially those that mention a 2007 Dodge Ram, a 5.7L Hemi engine or the plug gap.
Overall sentiment: Positive, but read with caution given the low review volume mentioned.
🗣️ Joseph V. Cruz
Works. Great plugs, just gap them properly.
Benefits by Situation
|
Situation |
How it helps you |
|---|---|
|
Routine maintenance |
You replace worn plugs with a complete kit, which helps the engine run more evenly if ignition was the cause. |
|
Ignition refresh |
A suitable, correctly installed plug can help steady the spark and reduce symptoms linked to tired plugs. |
|
Daily driving |
A healthy ignition system helps your Ram start cleanly, hold a stable idle and respond predictably. |
|
Towing or heavy loads |
Healthy plugs matter when the engine works harder, but they do not replace a full diagnosis if you have misfires under load. |
Ease of Use
|
Element |
How easy it is |
|---|---|
|
Buying |
Easy, since the kit includes all 16 plugs needed for a full replacement if the vehicle is compatible. |
|
Compatibility |
Good on paper for the listed applications, but confirm against your exact vehicle before buying. |
|
Installation |
Moderate. Reaching the plugs on a Hemi can take time, patience and the right tools. |
|
Checking |
Essential. Check the gap and the condition of the plugs before installing them. |
Key Points
- A 16-plug kit for a full replacement on a compatible 5.7L Hemi engine
- Part number NGK LZTR4AIX-11 #2313 with a fine iridium tip
- Listed for several Dodge, Chrysler and Jeep 5.7L Hemi applications from 2003-2008
- Stated gap of .044″, to be checked before installation
- A potentially good choice if you want an iridium option, but compatibility must be confirmed before buying
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FAQ
Will these plugs fit a 2007 Dodge Ram Hemi?
They are listed for several 5.7L Hemi applications from 2003 to 2008, which can include a compatible 2007 Dodge Ram Hemi. Even so, you should confirm exact compatibility with your engine, your vehicle trim and the recommended plug specifications before buying.
The safest approach is to compare the part number against your owner’s manual, your old plug, a reliable parts catalog or a mechanic’s advice.
How many spark plugs does a 2007 Dodge Ram 5.7L Hemi need?
A 5.7L Hemi engine generally uses two plugs per cylinder. On a V8 that comes to 16 spark plugs in total. That is why a 16-plug kit is practical when you want to do a complete replacement.
Before you start, check that you have all the plugs, the right tools and the access you need to reach each plug location.
Are the plugs already set to the correct gap?
This kit is listed as pre-gapped to .044″. That can simplify preparation, but you should not install the plugs without checking. Measure the gap with a proper gauge and compare it against your vehicle’s specifications.
Avoid forcing or adjusting an iridium plug carelessly, as the fine electrode can be more delicate than a standard plug.
When should you replace the spark plugs on a 2007 Dodge Ram Hemi?
The right interval depends on the plug type, the service history, your driving conditions and the manufacturer’s recommendations. Check your manual or ask a mechanic if you are unsure which interval to follow.
Possible signs of worn plugs include misfires, a rough idle, hard starts, reduced responsiveness, or fuel consumption rising with no other obvious cause.
Do iridium plugs deliver more power?
It is better to stay realistic. New, suitable plugs can help your engine run cleanly again if the old plugs were worn. They should not, however, be presented as a guaranteed performance modification.
The main benefit here is dependable maintenance, wear resistance and ignition stability when the product is compatible and correctly installed.
Why This Plug?
The NGK LZTR4AIX-11 #2313 is worth a look because it combines a clear part number, an iridium tip and a 16-plug format suited to a full replacement on a compatible 5.7L Hemi. That can save you hunting down several separate units.
It is most useful in clean, well-checked maintenance: confirm compatibility, check the gap, install the plugs correctly and watch how the engine behaves after the replacement.
Conclusion
The NGK LZTR4AIX-11 #2313 Iridium Spark Plugs can be a sensible choice if you are looking for a complete 16-plug kit for a 2007 Dodge Ram Hemi fitted with the compatible 5.7L. Their main appeal is simple buying, a clear part number and the iridium design.
Before ordering, take the time to confirm exact compatibility and the recommended gap. If everything matches your vehicle, this kit can help you bring your ignition system up to date with a practical, well-targeted option.
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