After researching manufacturer specifications, industry standards, and aggregated owner feedback for the 2013 Nissan Altima (2.5L and 3.5L engines), we compared and evaluated the top spark plugs on the market. Our guide focuses on fitment, performance, durability, and value to help you choose the right plug for your driving needs and budget.
We considered factors like electrode material, heat range, gap stability, and real-world longevity reported by owners. Whether you prioritize maximum performance, long service life, or everyday reliability, our picks cover the spectrum. Note that the 2013 Altima typically requires a 14mm thread, 0.044 inch gap (check your specific engine), and a reach of 26.5mm.
| Photo | Product | Score | Buy |
|---|---|---|---|
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NGK 5464 LFR6AIX-11 Iridium IX Spark Plug Best Overall Iridium tip, 0.044 in. gap, 14mm thread, 26.5mm reach |
9 | 🛒 Check Price |
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Denso (4504) PK20TT Platinum TT Spark Plug Runner Up Twin-tip platinum, 0.044 in. gap, 14mm thread |
8.7 | 🛒 Check Price |
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Bosch 9609 Double Iridium Spark Plug Best for Performance Double iridium, 0.044 in. gap, fine wire center electrode |
8.4 | 🛒 Check Price |
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ACDelco 41-993 Professional Iridium Spark Plug Best Value Iridium tip, 0.044 in. gap, 14mm thread, OEM for GM but fits Altima |
8.1 | 🛒 Check Price |
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Champion 9409 Copper Plus Spark Plug Budget Pick Copper core, 0.044 in. gap, 14mm thread, standard design |
7.8 | 🛒 Check Price |
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Autolite APP3924 Double Platinum Spark Plug Solid Mid-Range Double platinum, 0.044 in. gap, 14mm thread, fine wire design |
7.5 | 🛒 Check Price |
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E3 Spark Plugs E3.38 Premium Spark Plug Unique Design DiamondFire electrode, 0.044 in. gap, 14mm thread, patented design |
7.2 | 🛒 Check Price |
1. NGK 5464 LFR6AIX-11 Iridium IX Spark Plug: Best Overall
In our evaluation, the NGK Iridium IX stands out as the top choice for the 2013 Altima due to its balance of performance, durability, and ease of installation. Based on owner feedback and spec sheets, this plug offers improved ignitability and a longer service interval compared to standard copper plugs. It is pre-gapped to the recommended 0.044 inches, which reduces the chance of installation errors. Many owners report smoother idling and better acceleration after swapping to these plugs.
However, these plugs are not the most budget-friendly option. If you plan to keep your Altima for only a short time or drive very few miles, the extra cost may not be justified. Also, while the iridium tip is durable, it can be brittle if dropped or mishandled during installation. Overall, for most Altima owners seeking reliable long-term performance, this is our recommended pick.
- Iridium center electrode for long life and consistent spark
- Pre-gapped to 0.044 in. for easy installation on Altima
- OE replacement for Nissan QR25DE and VQ35DE engines
Pros: Excellent throttle response and fuel economy; Longevity up to 60,000 miles per many owners
Cons: Slightly more expensive than copper plugs
2. Denso (4504) PK20TT Platinum TT Spark Plug: Runner Up
Our research shows that the Denso Platinum TT is a strong alternative to the NGK IX, especially for owners who prioritize longevity. The twin-tip platinum design reduces wear and can last longer than standard single-platinum plugs. Based on spec sheets, it meets Nissan’s original equipment requirements and is a direct fit for the Altima. Owner reviews highlight excellent fuel economy and no misfires even after many miles.
That said, some performance-oriented owners note that these plugs do not deliver the same crisp throttle response at high RPMs as iridium options. If you frequently push your engine hard, you may prefer an iridium plug. Also, the gap is pre-set but should be verified before installation. Overall, this is a solid choice for commuters who want maximum service life.
- Twin-tip platinum design for longer life and better spark
- OE style for Nissan engines, easy direct replacement
- Resists fouling and misfires in daily driving
Pros: Very long lifespan (up to 80,000 miles claimed); Smooth idle and consistent performance
Cons: May not provide the same high-rpm performance as iridium
3. Bosch 9609 Double Iridium Spark Plug: Best for Performance
For owners who have modified their 2013 Altima or simply want the best possible ignition performance, the Bosch 9609 Double Iridium plug is a top contender. In our evaluation, the fine wire iridium center electrode provides a concentrated spark that improves combustion efficiency, especially under load. Owner feedback from Altima forums indicates noticeable gains in throttle response and smoothness at higher RPMs.
However, the premium price may not be justified for a stock Altima used primarily for commuting. Additionally, some users report that the plug is slightly longer than OEM (though still within spec), so careful installation is required to avoid piston contact. If you drive your Altima conservatively, a less expensive option may serve you just as well. This plug is best for those who demand maximum performance and are willing to pay for it.
- Double iridium construction for extreme durability and spark
- Fine wire center electrode for enhanced ignitability
- Designed for high-performance and turbo applications
Pros: Excellent high-rpm performance and power; Very long lifespan (up to 100,000 miles claimed)
Cons: Higher price point; May be overkill for stock Altima
4. ACDelco 41-993 Professional Iridium Spark Plug: Best Value
If you are looking for an affordable iridium option, the ACDelco 41-993 offers a good balance of price and performance. Based on our research, this plug meets the dimensional specifications for the Altima and provides the benefits of an iridium tip without the premium cost. Owner feedback indicates satisfactory performance in terms of idle smoothness and fuel economy.
However, this plug is originally designed for GM vehicles, and while it fits the Altima, the gap may need to be double-checked as it sometimes arrives slightly off. Additionally, some users report that the plug does not last as long as NGK or Denso iridium plugs, with some experiencing misfires after 30,000 miles. For budget-conscious owners who change plugs regularly, this is a solid pick, but for those wanting maximum longevity, we recommend spending a bit more.
- Iridium tip for long life and consistent spark
- Pre-gapped to 0.044 in., no adjustment needed
- Professional grade at a competitive price point
Pros: Good value for an iridium plug; Reliable performance in daily driving
Cons: Not a direct OEM replacement for Nissan (may need gap verification); Some owners report shorter lifespan than NGK
5. Champion 9409 Copper Plus Spark Plug: Budget Pick
For owners on a tight budget or those who prefer to change spark plugs frequently, the Champion Copper Plus is a reliable and inexpensive option. In our evaluation, it meets the basic requirements for the 2013 Altima and provides adequate performance for daily driving. Owner reviews note that it works without issues when replaced at recommended intervals.
However, copper plugs have the shortest lifespan of any type, typically requiring replacement every 20,000 to 30,000 miles. They also do not offer the same ignitability or high-rpm performance as iridium or platinum plugs. If you drive a lot of miles or demand consistent performance, you will likely spend more in the long run due to frequent changes. This plug is best for low-mileage drivers who want to minimize upfront cost.
- Copper core for good conductivity and low cost
- Standard design suitable for stock engines
- Easy to find and very affordable
Pros: Lowest price point; Works well for stock Altima with regular maintenance
Cons: Short lifespan (20,000-30,000 miles); Not for high-performance or modified engines
6. Autolite APP3924 Double Platinum Spark Plug: Solid Mid-Range
The Autolite Double Platinum plug sits between copper and iridium in terms of price and performance. Based on our research, it offers a reasonable lifespan and decent performance for the 2013 Altima. Some owners appreciate the fine wire design that improves combustion efficiency compared to standard plugs.
However, we found mixed owner feedback regarding reliability. A subset of users reported misfires or rough idle after installation, possibly due to gap inconsistency or compatibility issues. Also, in our evaluation, the double platinum construction does not hold up as well under high engine loads as iridium. If you have a modified Altima or drive in extreme conditions, we recommend stepping up to an iridium plug. This is a decent choice for stock Altimas with moderate driving habits.
- Double platinum for extended life over copper
- Fine wire center electrode for better spark
- Pre-gapped, but should be verified
Pros: Longer life than copper (up to 60,000 miles); Better value than iridium for some
Cons: Not as durable as iridium in high-heat conditions; Some Altima owners report misfire issues
7. E3 Spark Plugs E3.38 Premium Spark Plug: Unique Design
E3 Spark Plugs feature a distinctive DiamondFire electrode that is supposed to create a larger flame kernel for more complete combustion. In our evaluation, the concept is interesting, but real-world results for the 2013 Altima are inconsistent. Some owners report a slight improvement in throttle response, while others notice no difference or even a decline in performance.
We have concerns about durability based on owner feedback; some plugs have failed prematurely or caused misfires. Additionally, the gap is not pre-set as precisely as competitors, requiring careful adjustment. Given the mixed reviews and higher price than copper, we only recommend this plug for curious enthusiasts willing to experiment. For most Altima owners, a proven design from NGK or Denso is a safer bet.
- Patented DiamondFire electrode for enhanced flame kernel
- Claimed to increase horsepower and fuel economy
- Direct fit for Altima, no modification needed
Pros: Unique design may offer benefits in some engines; Good marketing claims
Cons: Mixed owner feedback, many report no improvement; Less established reliability compared to NGK/Denso
Frequently Asked Questions
What spark plugs does a 2013 Nissan Altima take?
The 2013 Nissan Altima typically uses spark plugs with a 14mm thread, 0.044 inch gap, and 26.5mm reach. For the 2.5L QR25DE engine, NGK LFR6AIX-11 or Denso PK20TT are common OEM equivalents. For the 3.5L VQ35DE, the same plugs fit. Always verify your specific engine code and consult your owner’s manual or a parts catalog.
How often should I change spark plugs on a 2013 Altima?
Nissan recommends replacing spark plugs every 60,000 miles for the 2.5L engine and every 105,000 miles for the 3.5L engine, though many owners choose to replace them sooner for optimal performance. Iridium and platinum plugs last longer, while copper plugs need more frequent changes (20,000-30,000 miles).
Can I use iridium spark plugs in my 2013 Altima?
Yes, iridium spark plugs are compatible and often recommended for better performance and longevity. They provide a stronger spark and can last up to 60,000 miles or more. Ensure they are gapped correctly to 0.044 inches and have the correct thread size and reach.
What happens if I use the wrong spark plug gap?
Using an incorrect gap can cause misfires, poor fuel economy, rough idle, and even engine damage. Too wide a gap may cause the spark to be weak, while too narrow can lead to pre-ignition. Always set the gap to the manufacturer’s specification (0.044 in. for most 2013 Altimas) before installation.
Are double platinum spark plugs better than iridium?
Both have advantages. Iridium is harder and can provide a finer electrode for a stronger spark, often lasting longer than platinum. Double platinum plugs offer good durability at a lower cost. For the 2013 Altima, iridium plugs generally offer the best performance and lifespan, but double platinum is a good mid-range option.
Our Verdict
After thorough research and comparison, our top pick for the best spark plug for the 2013 Nissan Altima is the NGK 5464 LFR6AIX-11 Iridium IX. It combines excellent performance, longevity, and ease of installation at a reasonable price. For those seeking an alternative with even longer life, the Denso 4504 PK20TT Platinum TT is a strong runner up. Choose based on your driving needs and budget.
