Best Spark Plugs for Acura MDX

When I first noticed a slight stutter in my Acura MDX’s acceleration and a dip in gas mileage, I knew it was time for a tune-up. Choosing the right ignition components is crucial for maintaining that famously smooth V6 performance and restoring lost fuel efficiency. I’ve compiled this detailed guide after reviewing the specifications and compatibility of the top options to help you find the absolute Best Spark Plugs For Acura MDX.

IMAGE	PRODUCT NAME	AMAZON LINK
	6 pc NGK Iridium IX Spark Plugs compatible with Acura…	View on Amazon
	UF624 Ignition Coil & 97390 Double Iridium Spark Plug for…	View on Amazon
	A-Premium Iridium Platinum Spark Plugs Compatible with…	View on Amazon
	6 pc NGK G-Power Spark Plugs compatible with Acura MDX…	View on Amazon
	6 pc NGK Laser Iridium Spark Plugs compatible with Acura…	View on Amazon
	A-Premium Iridium Platinum Spark Plugs Compatible with…	View on Amazon
	6 pc NGK G-Power Spark Plugs compatible with Acura MDX…	View on Amazon
	UF400 Ignition Coil & 9807B-5517W Double Iridium Spark Plug…	View on Amazon
	6 pc NGK Laser Iridium Spark Plugs compatible with Acura…	View on Amazon
	AULINK Set of 6 UF400 Ignition Coil Pack & 9686…	View on Amazon

6 pc NGK Iridium IX Spark Plugs compatible with Acura MDX 3.5L 3.7L V6 2010-2017

NGK Iridium IX plugs are often the go-to choice for enthusiasts looking for a blend of performance and durability. This set is specifically designed for Acura MDX models from 2010 to 2017 with both the 3.5L and 3.7L V6 engines. The fine-wire iridium tip ensures an incredibly efficient and powerful spark, leading to better throttle response and smoother cold starts compared to standard copper plugs. This is a genuine NGK set, so you can trust the quality and fitment.

Key features that stand out:
– Compatibility: Direct replacement for MDX 3.5L and 3.7L V6 (2010-2017).
– Material: Fine-wire Iridium center electrode.
– Packaging: Includes original packaging and necessary hardware.

Pros:
– Excellent ignition performance improves acceleration feel.
– High durability provides a great lifespan (though slightly shorter than Laser Iridium).
– Genuine NGK product ensures reliable quality.

Cons:
– These are performance plugs, so they don’t offer the extreme longevity of double precious metal designs.

Best for: Acura MDX owners from 2010-2017 seeking improved performance and crisp ignition response.

Expert Opinion: NGK’s Iridium IX line balances cost-effectiveness with performance gains, making it a popular choice for routine maintenance upgrades.

UF624 Ignition Coil & 97390 Double Iridium Spark Plug for Acura 10-13 MDX,13-15 RDX,10-13 ZDX/Honda 09-15 Pilot,09-14 Ridgeline 3.5L 3.7L Replaces# 30520-RN0-A01, E1124

If you’re experiencing serious misfires or rough idling, replacing both the coil packs and the spark plugs is often the most effective solution. This comprehensive kit provides six Double Iridium Spark Plugs and six UF624 Ignition Coils, matching or improving on OE specifications. The double iridium design is engineered for an extra-long working life, potentially up to 100,000 kilometers, offering superior cold-start performance and stability for specific 2010-2013 MDX models.

Key features that stand out:
– Kit Inclusion: Comes with 6 ignition coil packs and 6 double iridium spark plugs.
– Longevity: Double Iridium construction designed for extensive mileage intervals.
– Coil Quality: Coils feature advanced thermoplastic connectors to resist heat fractures.

Pros:
– Complete replacement system for both ignition coils and plugs.
– Exceptional lifespan due to the double iridium material.
– Designed to solve common issues like engine misfire and rough idle.

Cons:
– Since this is a comprehensive kit, the upfront cost is higher than plugs alone.

Best for: 2010-2013 MDX owners who need a complete ignition system overhaul to eliminate severe misfires.

Expert Opinion: Pairing new coils with new double iridium plugs is highly recommended maintenance, especially for higher mileage Acura engines, ensuring optimal voltage transfer.

A-Premium Iridium Platinum Spark Plugs Compatible with Honda Accord 2003-2007 & Acura MDX 2007-2009, TL 2004-2008, RL 2005-2008, 3.0L 3.2L 3.5L 3.7L, Pack of 6

This pack of six plugs from A-Premium is tailored for earlier generation MDX models (2007–2009). These are Iridium Platinum plugs, utilizing iridium on the center electrode and platinum on the ground electrode, which provides excellent wear resistance and stable performance. They are engineered for maximum ignition performance and long-term durability, with a recommended replacement interval between 80,000 to 100,000 miles, similar to OEM specifications.

Key features that stand out:
– Material Blend: Iridium center tip and Platinum core material.
– Longevity Focus: Engineered for 80,000 to 100,000 miles of use.
– Compatibility: Specifically fits 2007-2009 Acura MDX V6 3.7L.

Pros:
– Affordable alternative to major brand names with similar material construction.
– Excellent longevity and durable design.
– Direct OEM fitment specifications (e.g., 0.044 inch gap).

Cons:
– The brand recognition isn’t as high as NGK or Denso, which some mechanics prefer.

Best for: Owners of 2007-2009 Acura MDX models prioritizing long-life, OE-spec replacements without a premium price tag.

Expert Opinion: The Iridium/Platinum combination is a trusted design for modern V6 engines, offering reliable ignition and great resistance to electrode wear over time.

6 pc NGK G-Power Spark Plugs compatible with Acura MDX 3.5L 3.7L V6 2010-2017

The NGK G-Power series uses premium platinum alloy for enhanced durability and ignitability compared to standard nickel plugs. While not featuring the extreme longevity of iridium, the G-Power plugs offer a significant upgrade in terms of consistent spark and improved engine idle for the 2010-2017 MDX V6 models. They are a fantastic, cost-effective choice for drivers who might be replacing plugs more frequently or who prioritize budget without dropping down to basic copper.

Key features that stand out:
– Value Option: Excellent balance of quality and affordability.
– Material: Platinum alloy construction.
– Fitment: Compatible with 3.5L and 3.7L V6 engines (2010-2017).

Pros:
– More economical than Iridium options.
– Improved fuel efficiency and startup reliability over copper.
– Genuine NGK quality and direct fit.

Cons:
– Replacement intervals are shorter than those for the Iridium IX or Laser Iridium lines.

Best for: 2010-2017 MDX owners looking for a high-quality, reliable platinum spark plug on a tighter budget.

Expert Opinion: Platinum plugs are a solid middle-ground choice; they provide better wear resistance than copper but are still very affordable, making them ideal for standard maintenance schedules.

6 pc NGK Laser Iridium Spark Plugs compatible with Acura MDX 3.5L V6 2014-2020

For later model MDX owners (2014-2020 3.5L V6), the NGK Laser Iridium is often considered the gold standard. These plugs typically match or exceed the original equipment manufacturer (OEM) specifications and are designed specifically for long-term use in modern, high-heat engines. Featuring both an iridium tip and a platinum pad on the ground electrode (a true double precious metal design), they guarantee maximum resistance to wear and maintain a precise gap for 100,000+ miles.

Key features that stand out:
– Longest Lifespan: OE-equivalent, designed for 100,000+ mile replacement intervals.
– Construction: Double precious metal design (Iridium center, Platinum ground).
– Fitment: Perfect match for the 3.5L V6 in 2014-2020 MDX models.

Pros:
– Maximum durability and maintenance-free operation for extended periods.
– Maintains peak engine performance and efficiency over the long run.
– Considered the top-tier, OE-spec replacement plug by many technicians.

Cons:
– This is one of the more expensive options due to the dual precious metal components.

Best for: 2014-2020 MDX owners who want the longest possible lifespan and OE reliability.

Expert Opinion: When replacing OEM long-life plugs in an MDX, the Laser Iridium is almost always the appropriate replacement to maintain the factory service schedule and performance profile.

A-Premium Iridium Platinum Spark Plugs Compatible with Acura MDX 2010-2013, TL 2009-2014, ZDX 2010-2013, MDX 2010-2013, 3.7L, Pack of 6

If you own the 3.7L V6 MDX from 2010 to 2013, this Iridium Platinum set from A-Premium offers precise fitment and outstanding longevity. Similar to their earlier generation plug, these feature an Iridium center and Platinum core, engineered for exceptional ignitability and robust performance in high-compression engines. The plugs are designed to provide consistent spark and excellent durability across the 80,000 to 100,000-mile service interval.

Key features that stand out:
– Specific Fitment: Tailored for the 3.7L V6 in 2010-2013 MDX models.
– Engineering: Designed alongside OEMs for maximum ignition stability.
– Specifications: Features a 12.00mm thread diameter and longer reach (26.5mm).

Pros:
– Direct replacement for a specific, key generation of the MDX engine.
– Reliable longevity comparable to OE parts.
– Strong anti-fouling properties for cleaner combustion.

Cons:
– The required 26.5mm reach can make installation slightly trickier than shorter plugs.

Best for: Maintaining OE lifespan and specifications for the 2010-2013 Acura MDX 3.7L V6 engine.

Expert Opinion: The specifications, particularly the long reach (26.5mm), are critical for proper fitment in these specific Acura V6 engines, making precision matching essential for this model year range.

6 pc NGK G-Power Spark Plugs compatible with Acura MDX 3.7L V6 2007-2009

Another excellent choice from the NGK G-Power line, this set is specifically sized and heat-ranged for the earlier 3.7L V6 engines found in the 2007-2009 MDX. These platinum plugs provide a noticeable upgrade over basic plugs, offering better idle stability and increased resistance to spark erosion. They represent a very solid option for routine maintenance where reliability and reasonable cost are the primary factors.

Key features that stand out:
– Specific Compatibility: Designed for the 2007, 2008, and 2009 3.7L V6 MDX.
– Reliable Material: Durable platinum alloy construction.
– Genuine Parts: Guaranteed authentic NGK components.

Pros:
– Highly reliable performance at a budget-friendly price.
– Genuine NGK fitment prevents installation headaches.
– Provides consistent spark for stable engine operation.

Cons:
– While durable, they require replacement sooner than Iridium plugs.

Best for: Budget-focused maintenance on the 2007-2009 MDX that still requires a quality, branded product.

Expert Opinion: Platinum is especially beneficial in slightly older engines as it helps maintain performance even if the ignition system isn’t running at absolute peak capacity.

UF400 Ignition Coil & 9807B-5517W Double Iridium Spark Plug 6PCS for Acura 01-05 EL, 01-09 MDX/Honda 01-05 Civic, 03-08 Pilot, 06-08 Ridgeline/04-07 Saturn Vue Replaces# UF512 C1460

For owners of the first-generation MDX (2001-2006 3.5L V6) or the transitional 2007-2009 3.7L V6, this is another comprehensive coil and plug kit. It includes six UF400 Ignition Coils and six Double Iridium Spark Plugs, covering a wide range of older Acura/Honda platforms. The high-quality materials used in both the coils and plugs mean you get maximum service life (up to 100,000 km) and a guaranteed fix for issues like hesitant acceleration and poor gas mileage associated with aging ignition components.

Key features that stand out:
– Wide Coverage: Fits both 3.5L (01-06) and 3.7L (07-09) MDX generations.
– Double Iridium Plugs: Ensures long, consistent, and stable spark output.
– High-Quality Coils: Designed to suppress radio frequency interference and resist heat cycling.

Pros:
– Excellent value proposition for replacing both plugs and coils simultaneously.
– Offers extreme longevity suitable for high-mileage vehicles.
– Guaranteed to meet or exceed OE design standards.

Cons:
– The broad fitment across many models means you must double-check your specific MDX sub-model.

Best for: Older MDX owners (2001-2009) who are performing a comprehensive ignition tune-up to solve chronic misfire issues.

Expert Opinion: Replacing the coils on older vehicles is often just as important as the plugs, and these iridium plugs ensure you won’t have to revisit the ignition system for a very long time.

6 pc NGK Laser Iridium Spark Plugs compatible with Acura MDX 3.7L V6 2010-2013

For those driving the 3.7L MDX from 2010 to 2013, this is the top-tier replacement from NGK. The Laser Iridium plugs feature double precious metal construction—a fine-wire Iridium center electrode welded to a Platinum ground electrode. This design is crucial for maintaining the precise gap required by modern V6 engines for over 100,000 miles. They also boast Trivalent Metal Plating for superior anti-corrosion and anti-seizing properties, making future replacements much easier.

Key features that stand out:
– Advanced Construction: Double Iridium/Platinum materials for the longest life.
– Durability: Trivalent Metal Plating resists seizing in the cylinder head.
– Design: Engineered specifically for advanced fuel-injected and turbocharged engines (though the MDX is naturally aspirated, it benefits greatly from the precise spark).

Pros:
– Maximum possible lifespan and durability available from NGK.
– Excellent resistance to seizing, a common issue in high-mileage plugs.
– Ensures the most efficient spark possible, maximizing horsepower and gas mileage.

Cons:
– High initial cost reflects the superior materials and engineering involved.

Best for: 2010-2013 MDX 3.7L owners seeking the absolute best reliability and longest service life, matching OEM longevity standards.

Expert Opinion: The anti-seizing properties of NGK’s plating should not be overlooked, especially if you plan to keep your MDX for many more miles and worry about plug removal decades down the line.

AULINK Set of 6 UF400 Ignition Coil Pack & 9686 Spark Plugs For Acura CL EL MDX RL TL 1999-2009,for Honda Accord Civic Odyssey Pilot Ridgeline 1999-2010,Saturn Vue 2004-2007 1.7L 3.0L 3.2L 3.5L 3.7L

This highly versatile kit provides a complete tune-up for many older Acura/Honda V6 models, including the MDX from 2001-2009 (both 3.5L and 3.7L). You get six UF400 Ignition Coil Packs and six matching spark plugs. The plugs are triple-plated for corrosion resistance, and the coils are manufactured in certified facilities, meaning you get strict quality control and reliable operation. This is a very economical way to refresh the entire ignition system and cure sluggish performance.

Key features that stand out:
– Broad Compatibility: Covers nearly a decade of MDX models and related Honda platforms.
– Quality Control: Manufactured in TS16949 certified facilities.
– Warranty: Comes with a 1-year or 50,000 km warranty.

Pros:
– Excellent budget option for a full coil and plug replacement.
– Ensures all ignition components are new and working optimally together.
– Plugs feature trivalent metal plating for durability.

Cons:
– The generic nature of the spark plug type (9686) might not offer the specialized performance of NGK or Denso plugs.

Best for: Acura MDX owners with models between 2001 and 2009 needing a budget-friendly ignition system refresh.

Expert Opinion: When choosing a generic kit like this, the warranty and manufacturing certification (TS16949) provide assurance that the parts will function reliably as a direct OE replacement.

Comparison Insights: Choosing the Right Spark Plug for Your Acura MDX

When looking at the options above, it’s clear that compatibility is key, as MDX engines shifted specifications significantly between generations (e.g., 3.5L vs. 3.7L, and the introduction of the long-reach plugs).

If your primary goal is maximizing the time between maintenance visits, focus solely on the double precious metal plugs, like the NGK Laser Iridium or the Iridium Platinum options. These are designed to go 80,000 to 100,000 miles or more, matching the factory replacement schedule.

For drivers who are experiencing noticeable misfires, rough idling, or hard starts, investing in one of the kits that includes both the spark plugs and ignition coil packs (like the UF624 or UF400 sets) provides the most comprehensive solution, as coils often wear out around the same time as the plugs.

Finally, the NGK G-Power plugs are the best option for the budget-conscious owner who still demands brand quality. While they won’t last 100k miles, the platinum construction offers a substantial performance benefit over standard plugs at a very attractive price point.

Final Verdict

Making the right choice for your Acura MDX tune-up depends entirely on your vehicle’s year and what you prioritize: longevity, performance, or budget.

If Longevity and OE Specification are Your Priority (2014+ MDX):
The winner is the 6 pc NGK Laser Iridium Spark Plugs compatible with Acura MDX 3.5L V6 2014-2020. These are built to the highest standard, virtually guaranteeing 100,000+ miles of flawless performance.

If You Need the Best Performance Upgrade (2010-2017 MDX):
Go with the 6 pc NGK Iridium IX Spark Plugs compatible with Acura MDX 3.5L 3.7L V6 2010-2017. They offer slightly enhanced ignitability compared to the standard Laser Iridium, providing a sharper throttle feel.

If You Need a Full Ignition System Overhaul:
The UF400 or UF624 Coil and Plug Kits are your top choices, depending on your model year. These kits offer tremendous value and certainty, ensuring both voltage delivery and spark quality are renewed simultaneously.

Comprehensive FAQs About Choosing the best spark plugs for your Acura MDX

What is the recommended service interval for spark plugs in an Acura MDX?

For most modern Acura MDX models (especially those using the Iridium or Platinum plugs recommended by the factory), the replacement interval is typically 105,000 miles. If you are using standard copper or basic platinum plugs (like the NGK G-Power line), it is safer to check and potentially replace them closer to the 30,000 to 50,000-mile mark to maintain peak fuel efficiency.

Should I choose Iridium IX or Laser Iridium plugs for my MDX?

The choice depends on your goal. Laser Iridium (double precious metal) plugs are designed for maximum lifespan and are the OE equivalent for Acura MDX maintenance. They are built to last 100,000+ miles. Iridium IX plugs are single iridium performance plugs; they generally offer superior initial ignition power but have a slightly shorter lifespan than Laser Iridium and are better for drivers focused on crisp throttle response.

Do I need to replace the ignition coils when replacing the spark plugs?

It is generally not necessary to replace the ignition coils every time you change the plugs. However, on high-mileage MDX models (over 150,000 miles) or if you are already experiencing symptoms like engine misfire, rough idle, or hesitation under acceleration, replacing the coils at the same time is highly recommended as a preventive measure.

Are pre-gapped spark plugs safe to use in my Acura MDX?

Most precious metal plugs (Iridium/Platinum) for the Acura MDX come pre-gapped from the factory to the precise measurement required. While it’s always smart to confirm the gap size with a feeler gauge, it is usually advised not to adjust the gap on fine-wire Iridium plugs, as the tip can easily be damaged. Trust the manufacturer’s precision unless you verify the gap is grossly incorrect.

What signs indicate that my Acura MDX needs new spark plugs?

The most common signs are decreased Acura MDX performance, noticeable acceleration hesitation, engine misfires (often causing the check engine light to flash), rough engine idle, difficulty starting the vehicle, and a significant drop in gas mileage.

Why do some spark plugs fit both the 3.5L and 3.7L MDX engines?

While the engine displacement changed slightly over the years, the fundamental ignition system design, including the thread size, reach, and heat range requirements for those specific V6 generations (J-series engines), often remained similar enough for some plug models (like the NGK G-Power and Iridium IX options) to be compatible across both the 3.5L and 3.7L iterations. Always verify the exact model years provided in the fitment chart before purchase.