Best Spark Plugs for 2017 Toyota Tacoma: 2.7L and 3.5L Picks

If you’re looking to upgrade or replace the spark plugs on your 2017 Toyota Tacoma, start with your engine size. The 2.7L L4 and 3.5L V6 use different plug sets, and choosing the wrong pack can waste money or create fitment problems.

This guide compares OEM-style Denso Iridium, long-life iridium options, platinum replacements, and budget copper-style plugs. You’ll see fitment notes, best-use cases, pros, cons, and simple installation tips so you can pick the right set for your Tacoma and your driving needs.

Denso Iridium TT Spark Plugs for Toyota Tacoma 3.5L V6 (6 pc)

If you drive a 2017 Toyota Tacoma with the 3.5L V6 and want an OEM-style replacement, the Denso Iridium TT 6-pack is one of the safest fits in this list. It focuses on long service life, stable ignition, and a direct replacement approach instead of risky performance claims.

The listing describes a twin-tip design with an iridium center and platinum ground electrode. That design can help support steady spark performance when the plugs match your exact engine. For a 2017 Tacoma V6 owner, this is the pick I would check first before looking at cheaper aftermarket options.

Best For: Drivers of 2016 to 2017 Toyota Tacoma trucks with the 3.5L V6 who want a long-lasting, OEM-style spark plug replacement for reliable starts, smoother idle, and reduced misfire risk.

Pick this if: You own the 3.5L V6, want a 6-piece set, and prefer a trusted plug brand over the lowest price.

Skip this if: You own the 2.7L L4 or you only need one replacement plug.

Pros:

• Iridium and platinum twin-tip design supports stable ignition and long service life.
• 6-piece pack matches the plug count needed for a V6 replacement job.
• Good fit for buyers who want an OEM-style replacement without changing the ignition system.

Cons:

• Costs more than copper or nickel replacement plugs.
• Fitment is narrow, so confirm the 3.5L V6 application before ordering.
• May not create a noticeable power gain if your current plugs are still in good condition.

DENSO Iridium TT Spark Plugs for Toyota Tacoma 2.7L (2005 to 2017)

Choose this DENSO Iridium TT 4-piece set if your 2017 Tacoma has the 2.7L L4 engine. This is not the right pack for the 3.5L V6 because a V6 needs six plugs and uses a different fitment path.

The product listing points to a 4-piece direct-fit set for 2005 to 2017 2.7L L4 Tacomas, with M14x1.25 threads and a stated 0.040-inch gap. That makes it a strong match for buyers who want a premium replacement for the four-cylinder Tacoma without buying extra plugs.

Best For: Drivers of 2005 to 2017 Toyota Tacoma 2.7L L4 models who want a direct-fit, long-lasting spark plug set.

Pick this if: Your Tacoma has the 2.7L L4 engine and you want a 4-piece iridium-style replacement set.

Skip this if: Your Tacoma has the 3.5L V6, because this pack does not cover all six cylinders.

Pros:

• 4-piece pack fits the plug count for the 2.7L L4 engine.
• Iridium and platinum-style design supports long service life compared with basic copper plugs.
• Good option for daily drivers that need a clean, direct replacement.

Cons:

• Not suitable for the 3.5L V6 Tacoma.
• Costs more than basic replacement plugs.
• Review volume may be lower than broader universal-style listings, so check current Amazon feedback before buying.

6 pc Champion Copper Plus Spark Plugs for Toyota Tacoma 3.5L V6 (2016 to 2020)

The Champion Copper Plus 6-piece set makes sense if you want a lower-cost replacement for a 2017 Tacoma 3.5L V6. It is a better fit for budget-minded maintenance than for maximum service life.

Copper-style plugs can work well, but they usually do not last as long as iridium plugs. That tradeoff matters if you tow, drive long distances, or want to avoid doing the job again soon. Choose this set mainly when price matters more than extended intervals.

Best For: Tacoma owners with the 3.5L V6 from 2016 to 2020 who want a basic, budget-friendly 6-piece replacement set.

Pick this if: You want a lower upfront price and do not mind replacing plugs sooner than premium iridium options.

Skip this if: You want the longest service life or you prefer a premium OEM-style plug.

Pros:

• 6-piece pack covers a full V6 spark plug replacement.
• Good choice for budget maintenance on a stock Tacoma.
• Champion is a known spark plug brand with wide aftermarket use.

Cons:

• Copper-style plugs usually need replacement sooner than iridium plugs.
• Not a strong choice if your main goal is maximum longevity.
• Compatibility is limited to specific 3.5L V6 model years, so confirm fitment.

6 pc E3 Spark Plugs Compatible With Toyota Tacoma 3.5L and 4.0L V6 (2005 to 2022)

The 6 pc E3 spark plug set targets Tacoma owners who want a direct-fit V6 replacement with a more performance-focused plug design. The product listing describes compatibility with Tacoma 3.5L and 4.0L V6 engines across a broad year range, so it may appeal if you want one listing that covers many V6 models.

E3 promotes its DiamondFIRE design for spark efficiency. Treat that as a design feature, not a guaranteed horsepower or fuel economy promise. Your actual result depends on plug condition, engine health, driving style, and correct installation.

Best For: Toyota Tacoma 3.5L or 4.0L V6 owners who want a 6-piece replacement set with a performance-style electrode design.

Pick this if: You want a V6 set and like E3’s DiamondFIRE design.

Skip this if: You prefer OEM-style Denso or a more conservative iridium replacement.

Pros:

• 6-piece pack supports a full V6 replacement.
• DiamondFIRE design may appeal to buyers who want a performance-style plug.
• Broad listed V6 fitment helps buyers compare across Tacoma model years.

Cons:

• Performance gains are not guaranteed on a healthy stock engine.
• Some buyers may prefer OEM-style Denso plugs for factory-like replacement.
• Broad fitment listings require careful confirmation before ordering.

Autolite Platinum Spark Plugs (6 pc) for Toyota Tacoma 3.5L / 4.0L V6 2005 to 2019

Autolite’s 6-piece platinum set fits buyers who want a middle-ground option between low-cost copper-style plugs and premium iridium plugs. For a 2017 Tacoma 3.5L V6, this set can make sense if you want dependable replacement plugs without paying for the highest-end material.

The listing describes platinum construction, a necked-down center electrode, and direct-fit packaging for Tacoma V6 applications. Confirm the exact fit before purchase, especially if your truck has the 2.7L L4.

Best For: Owners of 2005 to 2019 Toyota Tacoma 3.5L or 4.0L V6 engines who want durable, OE-style platinum replacement plugs.

Pick this if: You want better longevity than basic copper-style plugs but do not need the longest iridium interval.

Skip this if: You want the longest possible service interval or your Tacoma has the 2.7L L4.

Pros:

• Platinum construction offers a useful balance of cost and durability.
• 6-piece pack supports a full V6 replacement.
• Good option for daily drivers who want a practical replacement set.

Cons:

• Platinum plugs usually do not last as long as high-quality iridium plugs.
• Not intended for every Tacoma engine, so check fitment closely.
• May not be the best choice for buyers who want strict OEM-style replacement.

6 pc Champion Iridium Spark Plugs for Toyota Tacoma 3.5L V6 (2016 to 2020)

The 6 pc Champion Iridium set is a better long-life option than the Champion Copper Plus set if you want to stay with Champion. It targets the 2016 to 2020 Tacoma 3.5L V6 and gives you a full six-plug replacement pack.

Choose this set if you want an iridium-style plug from a familiar brand and you prefer a complete V6 kit. Do not expect a dramatic performance change unless your current plugs are worn, incorrectly gapped, or causing rough running.

Best For: Tacoma 3.5L V6 owners from 2016 to 2020 who want a low-maintenance iridium replacement set.

Pick this if: You want Champion branding with better service life than copper-style options.

Skip this if: You want a Denso OEM-style match or you own the 2.7L L4 Tacoma.

Pros:

• Iridium construction supports longer service life than basic copper-style plugs.
• 6-piece pack covers a full V6 job.
• Useful option for Tacoma owners who prefer Champion parts.

Cons:

• Usually costs more than copper-style plugs.
• Fitment is limited, so confirm your exact year and engine.
• Real-world gains may be modest if your current plugs still work well.

SCITOO Double Iridium Spark Plugs for Toyota Tacoma 2016 to 2020 and Hyundai/Genesis Coupe 2010 to 2012 (Pack of 4)

Choose the SCITOO Double Iridium spark plugs only if your Tacoma matches the listed 2.7L L4 fitment. This pack includes four plugs, so it does not cover the 3.5L V6.

The Hyundai and Genesis Coupe compatibility in the product title can make this listing feel less Tacoma-focused. That does not automatically make it a bad product, but it does mean you should check fitment more carefully than you would with a Tacoma-only listing.

Best For: Toyota Tacoma 2.7L L4 owners from 2016 to 2020 who want an aftermarket double-iridium 4-piece replacement set.

Pick this if: You own the 2.7L L4 and want a lower-cost aftermarket iridium-style option.

Skip this if: You own the 3.5L V6 or prefer OEM-branded plugs.

Pros:

• 4-piece pack suits four-cylinder replacement needs.
• Double-iridium design can support stable ignition and long service life when fitment is correct.
• May appeal to buyers who want a budget aftermarket iridium-style plug.

Cons:

• Not a match for the 3.5L V6 because it is a 4-piece set.
• Not an OEM brand, which may concern buyers who want factory-style parts.
• Multi-vehicle title makes fitment confirmation extra important.

Autolite Iridium XP Spark Plugs (6 pc) for Toyota Tacoma 3.5L/4.0L V6 2005 to 2019

If you want near-OE reliability with long service life, the Autolite Iridium XP six-pack is one of the better V6 alternatives in this guide. It gives Tacoma V6 owners a full six-plug set and uses iridium construction for longer replacement intervals.

The listing describes a 0.6 mm finewire iridium center tip, laser-welded construction, and a platinum-protected ground electrode. These are useful features if you want a durable replacement plug, but you should still confirm the exact engine fit before ordering.

Best For: Tacoma owners with 3.5L or 4.0L V6 engines from 2005 to 2019 who want long-lasting, high-efficiency replacement spark plugs.

Pick this if: You want an iridium V6 set and prefer a broad Tacoma V6 fitment range.

Skip this if: You want the closest OEM-style Denso fit for a 2017 3.5L V6.

Pros:

• Iridium finewire center tip supports strong ignitability and long service life.
• 6-piece pack covers a full V6 replacement.
• Good fit for buyers comparing premium aftermarket options.

Cons:

• Higher upfront cost than copper-style or some platinum plugs.
• Fitment must be confirmed before ordering.
• May not deliver a noticeable change if your current plugs are not worn.

A-Premium Double Iridium Spark Plugs for Toyota Tacoma (2016 to 2020) and Hyundai Genesis Coupe (2010 to 2012), Pack of 4

The A-Premium Double Iridium set is another 4-piece option for Tacoma 2.7L L4 buyers. It is not the right choice for a 2017 Tacoma 3.5L V6 because the V6 needs six plugs.

This listing includes detailed specs such as 5000-ohm resistance, a stated 0.032-inch gap, 14 mm thread diameter, 5/8-inch hex, 26.50 mm reach, and 50.50 mm insulator height. Those details help if you want to compare specs before buying, but your final decision should still come from exact vehicle fitment confirmation.

Best For: Tacoma 2.7L L4 owners who want an aftermarket double-iridium 4-piece set with detailed listed specs.

Pick this if: You own the 2.7L L4 and want an aftermarket set with clear published dimensions.

Skip this if: You own the 3.5L V6, want Toyota Genuine parts, or prefer Denso as the first-choice brand.

Pros:

• Double-iridium design supports long service life when properly matched.
• Detailed listed specs help buyers compare fitment before purchase.
• 4-piece pack suits the Tacoma 2.7L L4 plug count.

Cons:

• Not suitable for the 3.5L V6.
• Aftermarket branding may not satisfy buyers who want OEM-style parts.
• The multi-vehicle listing requires careful fitment checking before purchase.

Factors to Consider When Choosing Spark Plugs for a 2017 Toyota Tacoma

Before you buy, make sure the plugs match your Tacoma’s engine, thread size, heat range, plug material, and recommended gap. A correct plug can help restore smooth starts and stable idle if your old plugs are worn. A wrong plug can cause misfires, poor running, or installation problems.

Engine Compatibility Check

Start by confirming which engine you have: the 3.5L V6 or the 2.7L L4. The 3.5L V6 needs six plugs, while the 2.7L L4 needs four plugs. Do not rely only on a product title. Use Amazon Confirmed Fit, your owner information, and the plug maker’s fitment notes before ordering.

Electrode Material Type

Choose iridium if you want the longest service life and stable spark performance. Choose platinum if you want a balanced replacement plug that often costs less than iridium. Choose copper-style plugs if you want a lower upfront price and accept more frequent replacement.

Heat Range Selection

The heat range controls how quickly the plug moves heat away from the firing tip. A plug that is too cold can foul. A plug that is too hot can raise the risk of pre-ignition. For a stock Tacoma, stay with the manufacturer-recommended heat range unless a qualified mechanic recommends otherwise.

Gap Size Importance

The spark plug gap affects ignition strength and combustion quality. A gap that is too wide can cause misfires. A gap that is too narrow can weaken combustion. Check the specific plug listing and your vehicle information before installation. Be careful with fine-wire iridium plugs because rough gap adjustment can damage the electrode.

Longevity and Mileage

Toyota notes that spark plugs often last around 80,000 miles, but the correct interval can vary by vehicle and maintenance schedule. Iridium plugs usually last longer than copper-style plugs because they resist heat and electrode wear better. Replace plugs sooner if you notice rough idle, hard starts, misfires, weak acceleration, or poor fuel economy.

Fuel Efficiency Impact

Your Tacoma’s spark plugs help control how cleanly fuel burns. New plugs can help restore fuel economy if the old plugs are worn or misfiring. Do not expect big mileage gains from spark plugs alone. Tire pressure, air filters, driving habits, fuel quality, and maintenance condition also matter.

Installation and Torque

When installing spark plugs on your 2017 Tacoma, pay close attention to gap, thread prep, and torque. Use the plug maker’s instructions and your Tacoma service information for the final torque value. Start every plug by hand to avoid cross-threading. Use a torque wrench, and do not overtighten. Apply anti-seize only if the plug maker recommends it.

Frequently Asked Questions

What Spark Plugs Fit a 2017 Toyota Tacoma?

It depends on your engine. A 2017 Tacoma with the 2.7L L4 needs a different plug set than a 2017 Tacoma with the 3.5L V6. Always confirm your engine size, pack count, plug gap, and Amazon Confirmed Fit before ordering.

Can I Use Colder or Hotter Spark Plugs for Towing or Heavy Loads?

You should stay with the recommended heat range unless a qualified mechanic recommends a change. A colder plug can help in some high-load or modified-engine cases, but the wrong heat range can cause fouling, rough running, or engine damage.

How Often Should I Gap Aftermarket Iridium Plugs for Tacoma Engines?

Check the gap before installation, but do not force-adjust fine-wire iridium plugs unless the plug maker says it is safe. Recheck your plugs when you replace them or if you diagnose misfires. Use a proper wire-style gauge and handle the electrode carefully.

Do Aftermarket Plugs Affect My Tacoma’s Warranty Coverage?

Aftermarket plugs can affect warranty coverage only if they cause the failure being claimed. Keep receipts, record mileage, and use plugs that match the correct specifications for your Tacoma.

Can Plug Choice Improve Fuel Economy on the 2017 Tacoma?

Yes, but usually only slightly. Correct spark plugs can help restore proper combustion if your old plugs are worn. Driving habits, tire pressure, filters, and overall engine condition usually have a bigger effect.

Are Plug Wires or Ignition Coils Different for 2017 Tacoma V6?

Yes. Your 2017 Tacoma V6 uses individual ignition coils on each spark plug rather than traditional plug wires. Inspect the coils while replacing plugs, especially if you have misfire codes or rough running.

Are OEM Spark Plugs Better Than Aftermarket Spark Plugs?

OEM-style plugs are often the safest choice if you want factory-like fit and predictable performance. Aftermarket plugs can still work well, but they need exact fitment, correct gap, and realistic expectations.

Should I Replace All Spark Plugs at Once?

Yes, in most cases. Replacing all plugs at the same time helps keep ignition performance even across all cylinders. It also saves labor because you do not need to repeat the job soon after.

Conclusion

The best spark plugs for your 2017 Toyota Tacoma depend on your engine. If you have the 3.5L V6, start with a 6-piece V6 set such as the Denso Iridium TT or Autolite Iridium XP. If you have the 2.7L L4, choose a 4-piece set made for that engine, such as the DENSO Iridium TT 2.7L option.

For long service life, choose iridium. For balanced value, consider platinum. For the lowest upfront cost, copper-style plugs can work, but expect shorter service life. Before you buy, confirm your engine, fitment, gap, and pack size so you get the right plugs the first time.