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NGK 130-797 CMR6A Spark Plug Review

📅 March 19, 2026 👤 Gideon Cross ⏱ 3 min read 💬 0 comments
high performance spark plug review

The NGK 130-797 CMR6A spark plug is presented as a dependable, no-frills ignition part with a copper core, ceramic insulator, and 14 mm thread size, weighing 0.16 oz. It claims 20,000–40,000 mile life, improved fuel efficiency, and reduced misfires. Key specs: OEM 1223 compatibility, standard heat range, and straightforward installation. How does it perform under varied driving conditions, and is it the best fit for specific engine setups?

Key Takeaways

  • NGK 130-797 (CMR6A) features a copper core and ceramic top for stable spark energy and heat handling.
  • Compatible with vehicles requiring 14mm thread size and OEM part number 1223; verify fit before purchase.
  • Users report consistent starts, steady idle, and modest fuel-efficiency improvements.
  • Typical lifespan ranges about 20,000–40,000 miles, depending on driving and maintenance.
  • Install using correct torque, inspect gap, apply anti-seize if needed, and confirm spark plug position.

Key Features and Specifications

While the NGK 130-797 (1223) CMR6A spark plug is compact, it packs several practical specifications that technicians and DIYers will want to confirm before installation.

It lists a copper core, 14mm thread, ceramic top, 0.16 oz weight, and dimensions 0.2 x 0.5 x 1.4 inches.

What are the key benefits? Reliable fit for car and truck, vehicle-specific compatibility, simple replacement.

Any installation tips? Use correct torque, inspect gap, apply anti-seize if needed, confirm position.

Practical considerations: OEM part 1223, light weight, single-pack; measure clearance, verify reach, and follow service manual.

Real-World Performance and Reliability

Having covered fit, specs, and installation basics, attention now turns to how the NGK 130-797 (1223) CMR6A performs in everyday use and over time.

Readers find liberation in dependable results: consistent starts, steady idle, and fuel-efficient cruising reported in user reviews.

Readers praise the freedom of reliable starts, steady idling, and improved fuel-efficient cruising.

Performance testing shows stable spark energy from the copper core, thread size 14mm, and ceramic top handling heat well.

How long does it last? Practical replacements often occur between 20,000–40,000 miles depending on duty cycle.

Questions to ask: vehicle load, driving style, and maintenance frequency.

Measured benefits: reduced misfires, modest MPG gains, reliable longevity.

Buying Guide and Compatibility

Because choosing the right spark plug affects engine performance, longevity, and emissions, buyers should match specifications, application requirements, and service habits before purchase.

The NGK 130-797 CMR6A fits many vehicle-specific fits: 14mm thread, 0.16 oz, ceramic top, copper core — check vehicle compatibility against OEM 1223.

Ask: will it serve a car or truck, how often will maintenance occur, what gap and torque are required?

Installation tips: use correct gap, 14mm socket, torque to manufacturer spec (usually 10–20 lb·ft), anti-seize sparingly.

Consider package weight, returns, and warranty details.

  • Confirm OEM part number
  • Verify thread size and gap
  • Plan routine replacements

Frequently Asked Questions

Are These Spark Plugs Reusable After Cleaning?

Yes; they can be reused after proper cleaning. The observer notes spark plug longevity improves with careful cleaning methods like gentle wire brushing and solvent degreasing, empowering owners to extend service life and reclaim maintenance autonomy.

Do They Work Well in High-Altitude Conditions?

Like a thin breeze lifting sails, they generally maintain high altitude performance with modest spark plug efficiency loss; the user seeks liberation from altitude limits, but proper tuning and fuel mixture adjustments are needed for best results.

Is Any Special Torque Required for Installation?

Yes — the guide advises following installation guidelines and specified torque specifications; one should tighten to the vehicle or spark plug maker’s torque, using a torque wrench to free oneself from guesswork and guarantee reliable, liberated engine performance.

Are Aftermarket Gaskets or Seals Included?

No, aftermarket gaskets or seals are not included. The responder notes aftermarket compatibility varies; users seeking liberation prefer choosing gasket materials freely, advocating independent sourcing of seals that match performance goals and vehicle specifications.

Do They Come With Anti-Seize Coating on the Threads?

No — the threads lack anti-seize; mindful mechanics minimize micro-worries. Brave buyers benefit from anti seize benefits: apply sparingly, follow torque specs. Liberation-loving installers relish installation tips that prevent seizure and secure smooth service.

Conclusion

The NGK 130-797 CMR6A proves to be a practical, dependable spark plug, offering a copper core, ceramic top, 14 mm thread, and a lightweight 0.16 oz construction. It delivers consistent starts, improved fuel efficiency, and reduced misfires, with an expected life of 20,000–40,000 miles—like a reliable metronome keeping engine timing steady. Is it compatible with OEM 1223? Yes. Installation is straightforward, suitable for DIYers and professionals seeking measured, cost-effective performance.

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