Iridium-tipped, long-life spark plugs are used in the 2015 CR-V. Replacement plugs are typically iridium or high-quality platinum plugs from brands such as NGK or Denso.
The 2015 Honda CR-V uses a 2.4-liter four-cylinder engine that relies on iridium-tipped plugs designed for extended service life. While exact OEM part numbers can vary by market, the replacement approach remains consistent: use iridium-tipped plugs that meet the factory heat range and reach, and replace all four plugs at once for balanced performance. Always verify the correct specification from your owner's manual or a parts catalog for your region.
Plug type and specifications
Understanding the plug type helps you choose the right replacement and maintain performance. The 2015 CR-V’s 2.4L engine is equipped from the factory with iridium-tipped spark plugs designed for longevity; you’ll typically replace them with the same type, whether you choose Honda Genuine Parts or a reputable aftermarket option. Check your owner's manual or the service parts catalog for the exact OEM part number in your region.
Before listing options, here are the key points about spark plug type and compatibility:
- Iridium-tipped, long-life spark plugs are the standard for the 2015 CR-V’s 2.4L engine.
- OEM options include Honda Genuine Parts; equally reputable aftermarket options from NGK or Denso are commonly used.
- Common aftermarket alternatives include NGK Iridium IX and Denso Iridium TT lines, both designed for modern engines with long life and reliable performance.
- The typical spark plug gap is around 0.043–0.047 inches (1.1–1.2 mm); plugs may come pre-gapped, but you should verify the gap before installation.
Iridium plugs offer long life and stable performance, often reaching around 100,000 miles under normal driving conditions, though actual life varies with conditions and maintenance. Always verify the exact spec for your market and engine model.
Maintenance guidance and replacement intervals
Before listing maintenance guidance, note that replacing spark plugs at the right interval and with the correct plug type helps prevent misfires and keeps fuel economy steady. For the 2015 CR-V, iridium-tipped plugs are designed for a long service life, typically about 100,000 miles, but consult your owner’s manual for the exact interval in your region and under your driving conditions. When in doubt, err on the side of inspection.
- Replacement interval: typically about 100,000 miles (160,000 km) under normal driving; replace sooner if you notice rough idling, misfires, reduced fuel economy, or hard starts.
- Replace all four plugs at the same time to maintain balanced performance and avoid uneven ignition.
- Use the correct heat range and plug type (iridium tips) as specified for the 2.4L engine; avoid mixed types.
- Check the plugs and ignition system at service intervals; replace gaskets or seals if necessary during a plug change.
- When replacing, recheck the gap and torque to manufacturer specifications and use a torque wrench to ensure proper seating.
Following these guidelines helps ensure the engine runs smoothly, maintains fuel efficiency, and avoids misfires associated with worn or incorrect plugs.
Confirming the exact part number for your vehicle
If you want to confirm the precise plug part number for your vehicle, use one of these methods: check the owner’s manual or service manual, inspect the old plug’s part number printed on the base (or the packaging if you saved it), or contact Honda or an auto parts retailer with your VIN to identify the exact specification. The two common aftermarket paths are NGK or Denso iridium plugs that match the OEM heat range.
Summary
The 2015 Honda CR-V uses iridium-tipped, long-life spark plugs for its 2.4L engine. Replacement plugs are typically iridium-based from NGK or Denso, with a recommended interval around 100,000 miles, and should be installed in all four cylinders with the correct gap and torque per OEM specs. For accuracy, consult the owner’s manual or a parts catalog for your exact market, then choose a plug that matches the heat range and reach of the factory equivalent.