NGK Spark Plug LFR5A-11 (6376) Pack of 6 — OEM-Grade Ignition, Long-Life Performance

NGK LFR5A-11 (6376) spark plugs are OEM-grade ignition parts sold as a six-pack that deliver reliable starting, consistent combustion, and long service life when matched to the correct vehicle application.

These LFR5A-11 plugs from NGK are a commonly specified original-equipment replacement designed to meet factory tolerances and expectations for fit, function and durability. NGK manufactures millions of plugs for automakers worldwide; this model is built to the same quality standards used in OEM supply and is intended to be used where the LFR5A-11 part number or NGK 6376 specification is recommended. Before purchase, confirm compatibility with your engine, cylinder count and ignition system to ensure proper fit and performance.

What performance benefits do NGK LFR5A-11 plugs offer?

These plugs focus on consistent ignition and extended life without adding complexity. They provide predictable spark delivery across a range of operating conditions and are engineered to resist wear and fouling over typical service intervals.

• Exactly machined center and ground electrodes for steady spark formation.
• Durable construction to withstand heat cycles and deposits.
• Built to OEM tolerances for reliable fit and stable combustion.

How do I confirm these are the correct plugs for my vehicle?

Always verify fitment using your vehicle’s engine code, year and cylinder count. NGK maintains an application database online where you can cross-reference the LFR5A-11 or part number 6376 against your specific make and model.

• Check your owner’s manual or service guide for the OEM part number.
• Use NGK’s online lookup or parts catalogs for exact matches.
• Confirm thread size, reach and heat range match your engine’s requirements.

What installation and maintenance points should I know?

Installation is straightforward for someone with basic mechanical skills, but correct torque and gap settings are essential to avoid damage and ensure optimal performance. Replace all plugs in the engine at the same time to maintain balanced ignition across cylinders.

• Apply the recommended torque; avoid over-tightening the porcelain and threads.
• Verify or set the electrode gap per manufacturer specifications before install.
• Inspect ignition leads and coils while replacing plugs for best results.

Why choose an NGK six-pack instead of single plugs?

Buying in a six-pack is convenient for multi-cylinder engines and ensures all cylinders receive identical, factory-matched parts. Purchasing a full set reduces the chance of uneven wear and avoids mixing old and new plugs that can affect engine balance.

• Designed to replace a full complement on most 6-cylinder engines.
• Consistent manufacturing batch reduces variability between cylinders.
• Cost-effective compared with buying single replacements over time.

Who is this for: Drivers and home mechanics seeking an OEM-compatible replacement plug for vehicles that list LFR5A-11 or NGK 6376 in their specifications. Ideal for owners who want dependable ignition parts from the world’s largest OEM spark plug supplier and for technicians performing routine tune-ups or scheduled maintenance. If you’re unsure about fitment, consult NGK’s application guide or a trusted mechanic before ordering.