NGK Spark Plug Set — LFR4A-E (Set of 4) OEM Fitment, Standard Nickel Electrode

NGK LFR4A-E is a genuine four-pack of NGK Standard 6499 spark plugs designed as direct OEM replacements for compatible vehicles.

These NGK LFR4A-E spark plugs come as an authentic set of four, packaged with original NGK hardware and labeling. They’re built to the manufacturer’s specifications to match factory fitment, electrical properties, and installation dimensions. If you need routine replacement plugs that align with original equipment requirements, this set offers a straightforward swap-in solution.

What does this NGK spark plug set replace?

The NGK LFR4A-E (part number 6499) is intended to replace the factory spark plugs specified by vehicle makers that call for that exact type. It’s a standard, non-precious-metal design meant for engines with compatible electrode and reach specifications.

• Matches NGK part 6499 physical and electrical specs
• Sold as a set of four for multi-cylinder engines
• Includes original NGK packaging and installation hardware
• Direct replacement—no gapping or modification needed when matched to vehicle fitment

How do I confirm these plugs fit my car?

Always verify fitment before purchase by checking your vehicle’s service manual or by using the seller’s confirmed-fit tool (e.g., Amazon Confirmed Fit). Cross-referencing your engine code and the NGK part number prevents ordering the wrong reach, thread size, or heat range.

• Use vehicle year, make, model, and engine size for lookup
• Compare NGK part 6499 to the existing plug on your engine
• Consult manufacturer fitment charts or online compatibility tools
• When in doubt, bring the old plug to an auto parts store for verification

What should I expect during installation?

Installation follows standard spark plug replacement procedures: remove the ignition coil or wire, extract the old plug with a proper socket, inspect the threads, and install the new NGK plug hand-tight before final torquing. Use a torque wrench or manufacturer torque spec to prevent damage and ensure correct sealing.

• Inspect cylinder head threads for damage before installing
• Hand-start threads to avoid cross-threading, then torque to spec
• Replace ignition boots or seals if worn to keep performance reliable
• Check engine idle and misfire codes after installation

Why choose NGK LFR4A-E instead of a generic plug?

Choosing genuine NGK ensures the plug meets NGK’s manufacturing tolerances and materials standards—important for consistent spark delivery and fit. This set delivers a like-for-like replacement where NGK is the original equipment supplier or the recommended aftermarket equivalent.

• Manufactured to NGK’s original equipment specifications
• Supplied in original NGK packaging with correct hardware
• Reduces guesswork compared with unbranded aftermarket plugs
• Pack of four simplifies maintenance for multi-cylinder engines

Who is this for: This NGK LFR4A-E set of four is aimed at vehicle owners, DIY mechanics, and technicians who need a reliable, factory-spec replacement spark plug for compatible engines. If you prioritize correct fitment, original-brand quality, and straightforward installation—especially for routine maintenance or scheduled tune-ups—this genuine NGK 6499 pack is a practical choice.