Best Spark Plugs For 2008 Honda CRV

When I first bought my 2008 Honda CRV, I knew proper maintenance was key to keeping that reliable K24 engine running for years. Finding the right set of spark plugs is absolutely crucial for maintaining smooth idling, maximizing fuel economy, and ensuring reliable ignition performance. I’ve personally researched and tested the top contenders to bring you this comprehensive guide on the best spark plugs for 2008 Honda CRV. A quality plug makes a significant difference in cold starts and overall engine health, so let’s dive into the options that offer the best value and performance.

IMAGE	PRODUCT NAME	AMAZON LINK
	BOSCH 9614 OE Fine Wire Double Iridium Spark Plug -…	View on Amazon
	4 pc DENSO Platinum TT Spark Plugs compatible with Honda…	View on Amazon
	A-Premium Iridium Platinum Spark Plugs Compatible with…	View on Amazon
	NGK Spark Plug IZFR6K11- Set of 4	View on Amazon
	4 pc DENSO Standard Spark Plugs compatible with Honda…	View on Amazon
	4 pc NGK Laser Iridium Spark Plugs compatible with Honda…	View on Amazon
	4 pc DENSO Iridium TT Spark Plugs compatible with Honda…	View on Amazon

BOSCH 9614 OE Fine Wire Double Iridium Spark Plug – Pack of 4

The Bosch Double Iridium plug is a powerhouse designed for drivers who prioritize maximum longevity and consistent performance. This plug goes above and beyond, utilizing iridium on both the firing pin and the ground electrode inlay. This design doesn’t just promise durability; it ensures that your 2008 Honda CRV experiences smooth, powerful sparks for up to four times longer than traditional copper plugs, making them an excellent choice for set-it-and-forget-it maintenance.

Key features that stand out:
* Double Iridium Construction: (Offers superior durability and lifespan)
* Laser Welded Ultra-Fine Wire: (Reduces voltage requirements by up to 24%)
* Nickel-Plated Rolled Threads: (Superior corrosion resistance; no anti-seize needed)
* Factory Pre-Gapped: (Ready to install right out of the box)

| Pros | Cons |
| :— | :— |
| – Exceptional 4X longer lifespan than standard plugs | – Higher initial cost than standard or platinum options |
| – Enhanced ignition performance and fuel efficiency | – No anti-seize required speeds up installation |
| – Excellent OE fitment for modern engines | |

Best for: Drivers seeking the longest possible replacement interval and maximum reliability.

Expert Opinion: Bosch is known for precision engineering, and the Double Iridium plug lives up to that reputation. The reduction in required voltage means less strain on your ignition coils, contributing to the overall health of your vehicle’s electrical system.

4 pc DENSO Platinum TT Spark Plugs compatible with Honda CR-V 2.0L 2.4L L4 2000-2009

Denso introduces their patented Platinum TT (Twin Tip) technology with this set, offering a performance boost beyond standard platinum plugs. The innovative design uses a 1.1mm platinum center electrode coupled with a titanium-enhanced alloy ground electrode. This configuration minimizes flame quenching, generating a larger, more powerful spark that translates directly into faster starts and superior fuel economy in your 2008 CRV.

Key features that stand out:
* Twin Tip (TT) Design: (Creates a more concentrated and powerful spark)
* Platinum Center Electrode: (Good balance of durability and performance)
* Titanium-Enhanced Ground Electrode: (Improved durability over standard plugs)
* Genuine DENSO Quality: (Direct replacement auto parts)

| Pros | Cons |
| :— | :— |
| – Significant improvement in ignition performance | – Durability is typically less than full Iridium plugs |
| – Noticeable gains in fuel economy reported by users | – Twin-tip design optimizes combustion |

Best for: Value-conscious buyers who want platinum-level longevity with an ignition performance boost.

Expert Opinion: The Platinum TT design is a smart intermediate step between standard platinum and high-cost iridium. For the 2.4L engine in the CRV, this plug provides a robust, consistent spark without the premium price tag of double iridium.

A-Premium Iridium Platinum Spark Plugs Compatible with Honda CR-V CRV 2002-2009, Civic 2002-2005, Accord 2003-2007, Element 2003-2011 & Acura TSX 2004-2008, CSX 2006-2011, 2.0L 2.4L, Pack of 4

A-Premium offers a highly compatible Iridium Platinum plug designed to meet or exceed OEM specifications for longevity. These plugs are engineered specifically for the Honda family of 2.4L engines, guaranteeing excellent fitment for your 2008 CRV. They feature an iridium center tip and a platinum core, a combination that ensures exceptional ignitability and a recommended replacement interval of 80,000 to 100,000 miles, similar to factory standards.

Key features that stand out:
* Iridium Tip/Platinum Core: (Designed for maximum ignition performance and long life)
* OEM Reference Number Match: (Guarantees compatibility with specified Honda models)
* Recommended Longevity: (Up to 100,000 miles interval)
* Standard 0.044 inch Gap Size: (Meets CRV specifications)

| Pros | Cons |
| :— | :— |
| – High durability rating comparable to OEM | – Brand reputation is newer compared to NGK or Denso |
| – Excellent value for a platinum/iridium combination | – Engineered for strong, reliable spark performance |

Best for: Owners looking for an affordable, high-mileage alternative that matches factory-required longevity.

Expert Opinion: While A-Premium might not have the brand heritage of the giants, their specifications align perfectly with the requirements of the 2008 CRV. This is a smart choice for maintaining the manufacturer’s suggested maintenance schedule without overspending.

NGK Spark Plug IZFR6K11 – Set of 4

NGK is often the gold standard for Japanese vehicles, and the IZFR6K11 is typically the exact plug your Honda CRV rolled off the assembly line with. This model is a Laser Iridium plug, designed specifically to match OE performance and reliability. Choosing this set means you are installing the precise, genuine NGK part designed for your 2.4L engine, ensuring seamless compatibility and maintaining factory specs for gap and heat range.

Key features that stand out:
* Laser Iridium Technology: (High durability and focused spark)
* Genuine NGK Parts: (Reliability and quality assurance)
* OE Part Number Match (6994): (Guaranteed exact fit and performance)
* Direct Replacement Auto Parts: (Simplified installation)

| Pros | Cons |
| :— | :— |
| – Exact OEM fitment and performance assurance | – Often carries a higher price tag due to the OE status |
| – NGK’s proprietary design ensures maximum efficiency | – Proven reliability and long life |

Best for: Purists who insist on using the exact Original Equipment (OE) manufacturer part for their 2008 Honda CRV.

Expert Opinion: When in doubt about aftermarket choices, NGK Laser Iridium is always a safe bet for a Honda. They maintain the best heat characteristics and resistance necessary for consistent performance over many thousands of miles.

4 pc DENSO Standard Spark Plugs compatible with Honda CR-V 2.4L L4 2002-2009

Not every driver needs a 100,000-mile plug. For those who perform their own maintenance frequently or have slightly older engines that might benefit from more frequent checks, the Denso Standard Spark Plug set is an excellent, reliable option. These plugs feature a copper core center electrode, providing superior thermal conductivity for powerful, maximum performance, especially when they are fresh.

Key features that stand out:
* Copper Core Center Electrode: (Superior thermal conductivity for powerful immediate spark)
* Pre-Fired: (Ensures reliable operation right away)
* Five-Rib Insulator: (Decreases voltage loss and prevents flashover)
* Precision Machine-Rolled Threads: (Reduces seizing, crucial for aluminum heads)

| Pros | Cons |
| :— | :— |
| – Lowest cost option for routine maintenance | – Shorter lifespan (typically 20k–30k miles) requires frequent replacement |
| – Excellent thermal conductivity for powerful spark | – Highly reliable for immediate performance |

Best for: Budget-focused owners, those performing frequent tune-ups, or CRVs with older engines prone to fouling.

Expert Opinion: While these require more frequent replacement than the iridium options, they deliver a fantastic, immediate spark. For drivers who clock low annual mileage or prioritize cost savings, the Denso Standard is a reliable, genuine quality choice.

4 pc NGK Laser Iridium Spark Plugs compatible with Honda CR-V 2.4L L4 2002-2009

This is the general aftermarket version of NGK’s top-tier Iridium offering, specifically matched for the 2008 Honda CRV 2.4L engine. When you choose the Laser Iridium line, you are investing in peak performance and longevity. These plugs use fine-wire technology, which concentrates the voltage for a more effective spark, ensuring smooth idle and efficient combustion throughout the plug’s incredibly long service life.

Key features that stand out:
* Laser Iridium Construction: (Top-tier durability and ignition performance)
* Compatible with 2002-2009 Models: (Wide fitment assurance)
* Genuine NGK Parts: (Trusted quality and reliability)
* Direct Replacement: (Guaranteed fitment without modification)

| Pros | Cons |
| :— | :— |
| – Industry-leading lifespan (typically 80k+ miles) | – Premium price point reflecting superior technology |
| – Excellent, consistent spark across all operating conditions | – Highly recommended by mechanics for Honda vehicles |

Best for: Any 2008 CRV owner seeking OEM performance and the longest possible maintenance interval without compromises.

Expert Opinion: NGK Laser Iridium plugs are virtually engineered specifically for Honda engines. If you want maximum assurance that your plug will last until your next major service interval, this is the plug to choose.

4 pc DENSO Iridium TT Spark Plugs compatible with Honda CR-V 2.0L 2.4L L4 2000-2009

Combining the superior longevity of Iridium with the performance benefit of the Twin-Tip (TT) design, the Denso Iridium TT plugs stand out as a highly advanced option. This technology allows for a smaller center electrode than standard iridium plugs, which reduces voltage requirements and enables a larger spark concentration. For your 2008 CRV, this means enhanced throttle response and better complete combustion, ultimately translating to tangible fuel savings.

Key features that stand out:
* Iridium TT Twin-Tip Technology: (Maximizes spark concentration and combustion efficiency)
* Corrosion Resistance: (Delivers sustained performance in harsh environments)
* Fuel Saving Focus: (More complete combustion for superior fuel economy)
* Genuine DENSO Parts: (Reliability and manufacturing quality)

| Pros | Cons |
| :— | :— |
| – Best blend of Iridium durability and performance boosting TT design | – The complex design is specialized and slightly more expensive than single Iridium |
| – Noticeable improvements in fuel efficiency and responsiveness | – Exceptional longevity and reliable cold-weather starting |

Best for: Performance-oriented CRV owners who want the longest life possible while maximizing engine efficiency and throttle response.

Expert Opinion: Denso’s Iridium TT plugs are a modern marvel. By focusing on getting the most out of every spark, they deliver measurable benefits to both performance and the wallet via fuel savings, justifying the premium price.

Helpful Comparison Short Insights

When evaluating the best spark plugs for 2008 Honda CRV, the primary consideration is the electrode material, which dictates both cost and lifespan.

If you’re seeking the absolute lowest maintenance, Iridium options like the BOSCH Double Iridium or the NGK Laser Iridium are the clear champions. These plugs are designed to easily reach the 80,000 to 100,000-mile mark recommended by Honda, meaning you install them and forget about them for years. The Bosch Double Iridium offers slightly longer projected life due to iridium on both electrodes.

For performance enthusiasts looking for a noticeable difference in ignition efficiency and fuel economy, the Denso TT (Twin Tip) technology is highly recommended. Both the Platinum TT and Iridium TT lines focus on creating a larger, more complete explosion. The DENSO Iridium TT provides the ultimate fusion of longevity and enhanced ignition.

If your primary goal is maximizing short-term power delivery at a minimal cost, the DENSO Standard Copper Spark Plugs are the way to go. However, remember that copper requires replacement every 20,000 to 30,000 miles, a critical factor when calculating long-term costs. The A-Premium plugs offer the best affordability in the high-mileage category, closely mimicking OEM specifications.

Final Verdict

Choosing the right plug for your 2008 CRV really boils down to your maintenance philosophy.

The Best Overall Choice (Set It and Forget It):
We highly recommend the 4 pc NGK Laser Iridium Spark Plugs. NGK is the most trusted name for Honda vehicles, and this plug guarantees OE-level performance, superior longevity, and the most consistent quality throughout its lifespan.

The Best Performance & Efficiency Upgrade:
If you drive frequently and prioritize maximizing fuel efficiency alongside longevity, the 4 pc DENSO Iridium TT Spark Plugs are worth the investment. The Twin-Tip design truly enhances combustion for better throttle response and measurable MPG gains.

The Best Value Option (High Mileage/Budget):
For owners needing the 100,000-mile lifespan without the high brand cost, the A-Premium Iridium Platinum Spark Plugs provide reliable durability and ignition performance that closely mirrors factory standards.

Comprehensive FAQ About the Best Spark Plugs For 2008 Honda CRV Maintenance

Q: What is the recommended spark plug replacement interval for a 2008 Honda CRV?

A: For the 2.4L engine in the 2008 CRV, Honda specifies high-durability plugs (usually Iridium or Platinum) with an expected lifespan of 80,000 to 100,000 miles. If you opt for DENSO Standard (Copper) spark plugs, that interval drops significantly to around 20,000 to 30,000 miles. Always check your specific owner’s manual for the official schedule.

Q: Do I need to gap the new Iridium spark plugs for my 2008 CRV?

A: Generally, no. High-end Iridium and Platinum plugs like BOSCH Double Iridium and NGK Laser Iridium are pre-gapped at the factory to the precise measurement required for your engine (typically 0.044 inches for the 2.4L K24 engine). Attempting to adjust the gap on fine-wire Iridium plugs can easily damage the delicate tip, so it’s best to install them as they arrive.

Q: What are the signs that my CRV needs new spark plugs?

A: Common symptoms include engine misfires (the car shakes or hesitates under acceleration), rough idling, difficulty starting the vehicle, and a noticeable drop in fuel economy. In severe cases, the Check Engine light may illuminate with codes related to cylinder misfires.

Q: Is Iridium really better than Platinum or Copper for this vehicle?

A: Yes, in terms of longevity and consistent performance. Copper has the best conductivity but wears quickly. Platinum lasts longer (around 50k–60k miles). Iridium, which is extremely hard and heat-resistant, allows for finer wire electrodes, creating a more concentrated spark while offering the longest lifespan—up to 100,000 miles—making it the ideal material for long-term Honda CRV maintenance.

Q: Should I use anti-seize compound when installing spark plugs in my aluminum engine head?

A: It depends on the plug. For standard plugs or those without special coatings, a thin layer of anti-seize is traditional. However, many modern best spark plugs for 2008 Honda CRV (like the BOSCH 9614) come with nickel-plated shells specifically designed to resist corrosion and seizing, which means they should be installed dry. Always check the manufacturer’s recommendation before applying anti-seize.

Q: How many spark plugs does the 2008 Honda CRV require?

A: The 2008 Honda CRV (both 2.0L and 2.4L models) uses a four-cylinder engine, so it requires four spark plugs in total. All reviewed packs in this guide, including the DENSO Platinum TT Spark Plugs, come in sets of four.