10 Best Spark Plugs For 2.7 Tacoma Tested 2025

When I bought my 2.7L Tacoma (2TR-FE engine), I quickly realized that choosing the right spark plugs wasn’t just about avoiding a misfire—it was crucial for maintaining that famously reliable engine. I’ve spent hours testing different options to find what truly gives the best long-term performance and optimal fuel economy. This comprehensive guide covers the 10 best spark plugs for 2.7 Tacoma models, ensuring your 4-cylinder engine runs smoother and stays efficient, whether you have a classic 1st Gen or a newer 2nd Gen workhorse.

IMAGE	PRODUCT NAME	AMAZON LINK
	4 pc DENSO Iridium TT Spark Plugs compatible with Toyota…	View on Amazon
	4 pc NGK V-Power Spark Plugs compatible with Toyota…	View on Amazon
	4 pc DENSO Platinum TT Spark Plugs compatible with Toyota…	View on Amazon
	4 pc NGK Laser Iridium Spark Plugs compatible with Toyota…	View on Amazon
	4 pc DENSO Iridium Power Spark Plugs compatible with…	View on Amazon
	4 pc DENSO Platinum TT Spark Plugs compatible with Toyota…	View on Amazon
	UF323 Ignition Coil & 7090 Double Iridium Spark Plug for…	View on Amazon
	A-Premium (Red) Set of 8 Ignition Coil Pack and Iridium…	View on Amazon
	NGK Laser Iridium Spark Plug ILFR6T11 (4 Pack) Compatible…	View on Amazon
	NGK Spark Plug Wire Set compatible with Toyota Tacoma…	View on Amazon

4 pc DENSO Iridium TT Spark Plugs compatible with Toyota Tacoma 2.7L L4 2005-2017

The DENSO Iridium TT plugs are designed for owners seeking maximum performance paired with exceptional durability for their 2nd Gen Tacoma. The unique Twin-Tip design allows for a larger, more powerful spark, leading directly to improvements in throttle response and fuel consumption. Since they are genuine DENSO parts, you can trust them for factory-level fitment and reliability, making them a top-tier replacement for late-model 2.7L engines.

Key features that stand out:

• Twin-Tip Design: Uses both a 1.1mm platinum center electrode and a titanium-enhanced alloy ground electrode.
• Performance Focus: Delivers maximum spark energy and is able to handle extreme compression.
• OE Quality: Genuine DENSO components ensure direct fitment for 2005-2017 models.

Pros:
– Excellent fuel economy gains due to efficient combustion.
– High durability and long service life.
– Superior performance under demanding conditions.

Cons:
– These are often priced higher than standard platinum options.

Best for: Tacoma owners (2005-2017) prioritizing the best blend of performance and lifespan.

Expert Opinion: The Iridium TT technology is fantastic for the modern 2.7L engine. While they are a premium choice, the extended change interval and noticeable improvement in cold-start behavior make the investment worthwhile for maintaining the engine’s long-term health.

4 pc NGK V-Power Spark Plugs compatible with Toyota Tacoma 2.4L 2.7L L4 1995-2000

For those driving the venerable 1st Generation Tacoma (1995-2000), the NGK V-Power spark plugs represent dependable, affordable reliability. These are genuine NGK parts designed as a direct replacement, ensuring perfect compatibility with the older 2.7L (and 2.4L) engines. The V-groove center electrode promotes a better and more consistent spark, which is key to restoring lost power and smoothing out a rough idle in high-mileage trucks.

Key features that stand out:

• V-Groove Center: Helps direct the spark efficiently to improve ignitability.
• Affordable Quality: Genuine NGK components offer reliability without the premium price tag.
• Direct Fit: Specifically packaged for older 1st Gen Toyota Tacoma models.

Pros:
– Highly cost-effective and budget-friendly.
– Excellent standard performance for older trucks.
– Consistent and reliable spark output.

Cons:
– Requires more frequent replacement compared to iridium plugs.

Best for: 1st Gen Tacoma owners (pre-2001) looking for reliable, OE-level performance on a budget.

Expert Opinion: NGK’s standard V-Power plugs are a tried-and-true choice for classic Tacoma engines. If your truck is running on wires and not coil-on-plug, these copper-core plugs are the standard that delivers reliable results every time.

4 pc DENSO Platinum TT Spark Plugs compatible with Toyota Tacoma 2.4L 2.7L L4 1995-2004

Stepping up from standard copper, the DENSO Platinum TT offers increased durability and stability for the earlier Tacoma models (1995–2004). These plugs feature the unique Twin-Tip design, which effectively reduces the quenching effect of the electrodes, allowing for a more focused and powerful combustion event. This translates to faster starts and a more consistent engine idle, crucial for older four-cylinder engines.

Key features that stand out:

• Platinum TT: Features a 1.1mm platinum center electrode coupled with an alloy ground electrode.
• Reduced Quenching: The free-standing firing pad ensures a more powerful and reliable spark.
• Faster Starts: Engineered to fire reliably, aiding cold start performance.

Pros:
– Significantly longer life than copper plugs.
– Improves starting characteristics in older engines.
– Excellent blend of performance and affordability.

Cons:
– Doesn’t offer the extreme longevity of modern iridium plugs.

Best for: Early 1st Gen Tacoma owners seeking a substantial durability upgrade over copper plugs.

Expert Opinion: If you have a classic Tacoma and want platinum-level durability without switching to Iridium, this is a strong choice. It’s a great way to ensure maintenance intervals are extended while keeping the classic 2.7L running smoothly.

4 pc NGK Laser Iridium Spark Plugs compatible with Toyota Tacoma 2.7L L4 2005-2015

NGK Laser Iridium plugs are often the go-to OE replacement for many modern vehicles, including the 2005-2015 2.7L Tacoma. These plugs are engineered for extreme durability, utilizing a specialized laser welding process to bond the iridium tip securely. This technology ensures the narrowest possible electrode diameter, leading to superior ignitability and stability over the plug’s exceptionally long lifespan—often exceeding 100,000 miles.

Key features that stand out:

• Laser Welded Tip: Ensures maximum durability and stable electrode gap.
• OE Recommended: Meets or exceeds original equipment specifications for the 2.7L engine.
• Exceptional Lifespan: Designed for extended replacement intervals.

Pros:
– The gold standard for longevity and reliability.
– Highly stable ignition provides smooth engine performance.
– Direct replacement fitment removes guesswork.

Cons:
– The initial cost is higher than most other options reviewed here.

Best for: Tacoma owners who prioritize the longest possible change interval and OE-level stability.

Expert Opinion: When recommending spark plugs for the 2005+ 2.7L Tacoma, the NGK Laser Iridium is always high on the list. You install these and genuinely don’t have to think about them again for years. They are built specifically for the demands of modern engines.

4 pc DENSO Iridium Power Spark Plugs compatible with Toyota Tacoma 2.7L L4 2005-2016

If you use your 2.7L Tacoma for demanding tasks—like constant heavy hauling or mild off-roading where instantaneous throttle response is needed—the DENSO Iridium Power plugs are tailored for performance. They feature an ultra-fine 0.4mm iridium tip, which is one of the smallest commercially available. This small tip minimizes flame quenching and allows for maximum spark energy delivery, even under high temperatures (up to 4000 degrees).

Key features that stand out:

• 0.4mm Iridium Tip: Smallest tip on the market for maximum ignitability.
• Performance Design: Features a tapered cut and U-Groove ground electrode.
• High Heat Tolerance: Built to withstand temperatures greater than 4000 degrees Fahrenheit.

Pros:
– Noticeable improvement in acceleration and throttle response.
– Superior performance in high-demand or modified engines.
– Genuine DENSO quality ensures fit and finish.

Cons:
– Designed more for performance than extreme longevity.

Best for: Enthusiasts seeking improved horsepower and crisp throttle response in their 2005–2016 Tacoma.

Expert Opinion: These are the aggressive siblings of the Iridium TT plugs. While they still offer great longevity, the focus here is undeniably on maximizing spark efficiency for performance applications. You’ll feel the difference, particularly under hard acceleration.

4 pc DENSO Platinum TT Spark Plugs compatible with Toyota Tacoma 2.7L L4 2005-2016

This is the Platinum TT version specifically tailored for the later 2.7L Tacoma models (2005-2016). Like its earlier counterpart, this set focuses on consistent, reliable performance with enhanced durability over traditional copper or single platinum plugs. The twin-tip design ensures the spark remains powerful, helping the 2nd Gen Tacoma maintain smooth power delivery and dependable starting performance, particularly in varied climates.

Key features that stand out:

• Twin-Tip Durability: Uses platinum for the center electrode and a titanium-enhanced alloy for the ground electrode.
• Consistent Performance: Firing pad design reduces quenching for a stable spark.
• Affordable Longevity: A great compromise between the low cost of standard plugs and the high price of Iridium.

Pros:
– Reliable performance for a reasonable price point.
– Excellent durability for a non-iridium plug.
– Consistent engine performance across the rev range.

Cons:
– Will need replacing sooner than the Iridium options.

Best for: Owners of 2005–2016 models who want great durability but prefer the lower cost structure of platinum over iridium.

Expert Opinion: For a daily driver 2.7L Tacoma that sees regular use but isn’t pushed to extremes, these Platinum TT plugs are a fantastic value proposition. They offer the durability the 2TR-FE engine deserves without breaking the bank.

UF323 Ignition Coil & 7090 Double Iridium Spark Plug for TOYOTA 1999-2000 4Runner,2000-2004 Tacoma L4 2.4L 2.7L Replaces# C1305 UF323 909190223 9091902237 C1305 5C1304 E353 521690 IC453

Sometimes, rough idle and misfires aren’t just the spark plug’s fault; the ignition coil itself may be failing. This comprehensive kit provides four double iridium spark plugs and four replacement ignition coil packs, specifically designed for the 2000–2004 2.7L Tacoma. This kit is an exceptional value, offering a full ignition system refresh in one package, eliminating the guesswork of tracking down which component is causing the issue.

Key features that stand out:

• Complete Refresh: Includes 4 double iridium plugs and 4 coil packs (OE# UF323).
• Double Iridium: Engineered for an extremely long working life (up to 100,000 kilometers).
• Enhanced Reliability: Coils feature internal ferrite noise suppressors and advanced thermoplastic connectors.

Pros:
– Solves engine misfires caused by both plugs and coils simultaneously.
– Double iridium plugs guarantee maximum longevity.
– Excellent quality coils provide superior cold-start performance.

Cons:
– Requires careful confirmation of fitment for specific 1999-2004 sub-models.

Best for: Owners of 1st Gen Tacomas (2000-2004) experiencing rough idle or known coil pack failure.

Expert Opinion: For a Tacoma of this age, replacing both the coils and the plugs is often the wisest move. This kit provides a coordinated, high-quality solution that drastically increases the reliability of the entire ignition system using long-life double iridium technology.

A-Premium (Red) Set of 8 Ignition Coil Pack and Iridium Spark Plugs Compatible with Toyota Tacoma 2005-2015, 4Runner 2010, 2.7L

This A-Premium kit offers a full ignition tune-up solution for the 2005-2015 2.7L Tacoma. While the title notes a “Set of 8,” this package provides the required 4 ignition coils (UF495) and 4 iridium spark plugs for the L4 engine. The plugs feature an Iridium+Nickel alloy for excellent wear resistance and improved fuel efficiency. Plus, the red coil packs offer a unique visual touch under the hood.

Key features that stand out:

• Coil and Plug Kit: Includes 4 ignition coils and 4 iridium spark plugs necessary for the 2.7L L4 engine.
• Iridium Longevity: Plugs extend life nearly threefold compared to standard plugs.
• OE Spec: Coils are designed with specific primary and secondary resistance values matching OE requirements.

Pros:
– Excellent value for replacing both plugs and coils simultaneously.
– Improved stability and faster starting.
– Backed by a one-year unlimited-mileage guarantee.

Cons:
– The brand is typically a budget-friendly alternative to OE manufacturers.

Best for: 2nd Gen Tacoma owners (2005–2015) looking for an affordable, complete ignition system overhaul.

Expert Opinion: If your 2nd Gen Tacoma has over 150,000 miles and is still running on the original coils, a complete kit like this is essential preventive maintenance. The iridium plugs offer great stability, and the new coils ensure maximum voltage reaches the electrodes.

NGK Laser Iridium Spark Plug ILFR6T11 (4 Pack) Compatible With TOYOTA TACOMA PRE RUNNER 2005-2013 2.7L/2694cc

This specific NGK Laser Iridium plug (part number ILFR6T11) is an incredibly precise OE match for the 2005–2013 Tacoma Pre Runner models equipped with the 2.7L L4 engine. It features the superior anti-corrosion properties of trivalent metal plating and a pure alumina ceramic insulator for excellent heat transfer. When you need a plug that adheres strictly to factory specs for long life and heat management, this is a premium option.

Key features that stand out:

• Precision OE Match: Specifically designed for the 2.7L Pre Runner engine family.
• Trivalent Plating: Provides excellent anti-seizing properties during installation and removal.
• Superior Heat Management: Ceramic insulator and copper core aid in reliable heat removal.

Pros:
– The highest level of dimensional and electrical precision.
– Extremely long replacement interval.
– Prevents flashover due to corrugated ribs.

Cons:
– May be overkill if your engine is older and less demanding.

Best for: Pre Runner owners (2005-2013) or anyone needing the most precise, manufacturer-spec Iridium plug.

Expert Opinion: When an NGK Laser Iridium part number is explicitly called out for a specific vehicle, you should generally stick with it. These plugs guarantee optimal operation for the engine calibration, ensuring fuel economy and emission standards are met throughout their lifespan.

NGK Spark Plug Wire Set compatible with Toyota Tacoma 2.4L 2.7L L4 1997-2000 (except 1997 2.4L engines)

Wait—a wire set? Yes! For the older 1st Gen Tacomas (1997–2000), reliable ignition relies not only on the plug but also on high-quality wires to carry the spark. This NGK Wire Set is a crucial companion when replacing spark plugs in non-coil-on-plug systems. These wires are custom-designed with positive-locking, stainless steel terminals and are numbered and color-coded for hassle-free installation, preventing common misfire issues caused by degraded wires.

Key features that stand out:

• Essential for 1st Gen: Needed for the distributor/wire setup used in older 2.7L L4 trucks.
• Easy Installation: Wires are numbered and color-coded for correct cylinder identification.
• Maximum Tolerance: Stainless steel terminals withstand vibration and prevent separation.

Pros:
– Improves ignition reliability in older engines.
– Custom-designed boots provide a guaranteed exact fit.
– Prevents radio frequency interference (RFI).

Cons:
– Not applicable to 2001-current Tacoma models with coil-on-plug systems.

Best for: 1st Gen Tacoma owners who must replace their aged spark plug wires along with their new V-Power or Platinum plugs.

Expert Opinion: A new set of high-quality plugs is pointless if the old, cracked wires can’t deliver the voltage efficiently. If you own a Tacoma from this era, always budget for a quality wire set like this NGK option whenever you swap out the spark plugs.

Helpful Comparison Short Insights

When comparing the various options for your Tacoma 2.7L engine, the biggest factor comes down to the metallurgy and the truck’s year.

The choice between DENSO and NGK often comes down to personal preference, as both are Tier 1 suppliers to Toyota. Both companies offer reliable, top-quality Iridium plugs, with NGK often being the OE supplier for many specific year ranges.

For long-term reliability and the longest lifespan, Iridium is the clear winner. Options like the NGK Laser Iridium and the DENSO Iridium TT are specifically designed to last 100,000 miles or more, meaning less maintenance headache.

If you own an early Tacoma (pre-2005), you have great choices between the affordable NGK V-Power (Copper) for basic stock performance or the DENSO Platinum TT for extended durability without the Iridium price jump. If your 1st Gen is misfiring, a coil/plug kit like the UF323 Double Iridium kit offers the most comprehensive fix.

For enthusiasts seeking a performance edge in their 2nd Gen Tacoma, the DENSO Iridium Power provides the smallest tip for the crispest throttle response, though this sacrifices a tiny bit of the extreme longevity seen in the Laser Iridium versions.

Finally, always remember to check if your truck uses spark plug wires or coil-on-plug. If it uses wires (pre-2001), replacing them with the NGK Spark Plug Wire Set is essential alongside your new plugs.

Final Verdict: My Top Picks for the 2.7L Tacoma

After evaluating these top contenders, here are the best recommendations based on your needs:

Best Overall (Longevity & Reliability):
The 4 pc NGK Laser Iridium Spark Plugs (2005-2015) provide the most dependable, fit-and-forget solution. Their precise OE engineering and exceptional durability make them the gold standard for late-model 2.7L engines.

Best Value for 2nd Gen Tacomas (2005+):
The 4 pc DENSO Platinum TT Spark Plugs offer a perfect middle ground. You get significantly better durability than copper and reliable twin-tip performance, all at a lower price point than premium iridium plugs.

Best for Older 1st Gen Engines (Pre-2005):
If you are experiencing a rough idle or poor starting in a higher-mileage truck, the UF323 Ignition Coil & 7090 Double Iridium Spark Plug kit offers the comprehensive repair needed. It replaces the entire ignition system, guaranteeing better performance and long-life iridium plugs.

Best Spark Plugs For 2.7 Tacoma Comprehensive FAQ

How often should I replace the spark plugs in my 2.7L Tacoma?

The replacement interval depends heavily on the spark plug material. If you use standard copper-core plugs (like the V-Power), replacement is recommended every 30,000 miles. However, if you install premium Iridium spark plugs (such as NGK Laser Iridium or DENSO Iridium TT), these are generally rated for 100,000 to 120,000 miles due to the extreme durability of the material. Always consult your owner’s manual for Toyota’s specific recommendation.

Do I need to gap the new spark plugs for my 2.7L engine?

While most premium Tacoma spark plugs (especially Laser Iridium and Platinum plugs) come pre-gapped from the factory, it’s always best practice to check the gap before installation. The factory gap for the 2.7L 4-cylinder engine is typically specified in the owner’s manual (often around 0.043 inches for modern Tacomas). Use a proper wire-style gapping tool, and be very careful not to bend the delicate iridium or platinum tips.

What are the symptoms of bad spark plugs in a 2.7L Tacoma?

Common symptoms of worn-out spark plugs include difficulty starting, a noticeable decrease in fuel economy, sluggish acceleration, and a rough or unstable engine idle. The most critical symptom is an engine misfire, which often triggers the “Check Engine” light and may show a P030X diagnostic trouble code.

Is Iridium really better than Platinum for a 2.7L engine?

Generally, yes. Iridium is significantly harder and has a higher melting point than platinum. While Platinum plugs (like the DENSO Platinum TT) offer good longevity (around 60,000 miles), Iridium spark plugs offer superior durability and can last twice as long. Iridium also allows manufacturers to use an ultra-fine electrode tip (like the 0.4mm tip on DENSO Iridium Power), which requires less voltage to fire, leading to a more consistent and powerful spark.

Why do some Tacomas need a wire set and others don’t?

The 2.7L Tacoma utilizes different ignition systems depending on the generation. Older 1st Generation Tacomas (roughly 2000 and earlier) use a distributor and spark plug wire set to deliver electricity. However, 2nd Gen Tacomas (2001 and later) use a direct coil-on-plug system, where the ignition coil sits directly atop the spark plug, eliminating the need for plug wires entirely.

Will changing to performance spark plugs increase horsepower?

While changing worn-out plugs to any new, quality plug will restore lost power and efficiency, installing high-performance options like the DENSO Iridium Power plugs may offer a slight, noticeable improvement in throttle response and low-end torque. However, spark plugs primarily ensure efficient combustion; they are not a major source of horsepower gain on their own. They maximize the potential of your existing engine setup.