NGK Iridium Spark Plug LKR7BIX-P for Mahindra KUV100 Petrol — Fitment, Specs & Buying Guide

If your Mahindra KUV100 petrol is due for a spark plug service, one detail catches many owners off guard: the KUV100's 3-cylinder engine needs exactly 3 plugs, not 4 — even though the same NGK part number appears in Hyundai's 4-cylinder Kappa fitment lists. With the KUV100 discontinued since 2023 and dealership parts stocks thinning, getting this right matters more than ever.

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In short: The correct iridium spark plug for the Mahindra KUV100 1.2L petrol (mFalcon G80) is the NGK LKR7BIX-P (NGK stock number 1396). You need 3 plugs per car. The KUV100 diesel uses glow plugs — the LKR7BIX-P does not apply to it at all.

Buy genuine NGK LKR7BIX-P spark plugs for your KUV100 on AutoDecode — 3-piece fitment, verified sourcing, pan-India delivery.

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What Is the NGK LKR7BIX-P?

The LKR7BIX-P is an Iridium MAX spark plug — NGK's premium iridium series. It features a 0.6mm fine-wire iridium centre electrode paired with a platinum chip on the ground electrode. This combination produces a sharper, more concentrated spark than a conventional copper plug, while wearing significantly more slowly at both electrodes.

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⚠️ Critical: Petrol vs Diesel — Do Not Confuse the Two

The KUV100 was sold in both petrol and diesel variants.

Petrol (mFalcon G80): Naturally aspirated 1.2L 3-cylinder with multi-point fuel injection. Uses spark plugs. NGK LKR7BIX-P applies here.

Diesel (mFalcon D75): Turbocharged 1.2L 3-cylinder with common rail direct injection. Diesel engines ignite fuel through compression — they use glow plugs, not spark plugs. The LKR7BIX-P has no application in the KUV100 diesel.

Not sure which variant you have? Check the fuel door label, your RC under "fuel type," or the engine bay — the diesel KUV100 has a turbocharger; the petrol does not.

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Why 3 Plugs, Not 4?

The mFalcon G80 is a 3-cylinder engine. Three cylinders = three spark plugs. This is where KUV100 owners most commonly go wrong.

The NGK LKR7BIX-P is also listed for the Hyundai 1.2L Kappa II — a 4-cylinder engine that needs 4 plugs. If you search for this part number and encounter a "complete set" listing, confirm it is a 3-piece set for the KUV100, not a 4-piece set configured for a different application.

Order 3 plugs for one KUV100 petrol. No more, no less.

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LKR7BIX-P vs LKR7E: Iridium or Copper?

The NGK LKR7E is the conventional copper alternative for the same mFalcon G80 engine. Both fit — but they are not equivalent in service life or performance.

For a discontinued car that owners plan to run for several more years, the LKR7BIX-P is the practical choice. Fewer replacement intervals, more consistent ignition, and better anti-fouling performance under Indian city stop-go conditions — where low-throttle, partial-load operation is the norm and carbon deposits build faster than on highway driving.

The copper LKR7E is functional but needs replacing sooner. The cost saving on the part is offset by more frequent servicing.

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When to Replace and What to Watch For

Always refer to your KUV100 owner's manual for the exact interval. For iridium plugs in naturally aspirated engines of this class, inspection has typically been recommended around the 30,000 km service mark, with replacement per condition or the manufacturer's fixed interval.

Do not assume iridium lasts indefinitely. In a 3-cylinder engine, one worn or misfiring plug represents one-third of total ignition work — the effect on smoothness and efficiency is proportionally larger than in a 4-cylinder.

Watch for these symptoms in your KUV100 petrol:

• Rough or uneven idle, especially at traffic stops
• Hesitation or stumbling when pulling away
• Difficult cold starts in the morning
• Drop in fuel efficiency
• Engine vibration or shuddering
• Inconsistent throttle response at part load
• Check engine light (scan for misfire codes P0300–P0303)

Before replacing plugs based on symptoms alone, get a diagnostic scan first. A coil-on-plug failure produces identical misfire symptoms — replacing plugs will not fix it.

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Buying Genuine Parts for a Discontinued Model

The KUV100 was discontinued in 2023. Authorised Mahindra dealers may not always carry routine service parts in ready stock, and more owners are now sourcing independently. NGK is one of the most frequently counterfeited spark plug brands in India — and independent sourcing for discontinued models creates more opportunity for counterfeit parts to reach unsuspecting buyers.

Signs of a genuine NGK LKR7BIX-P:

• Part number LKR7BIX-P and stock number 1396 clearly printed on packaging
• "Made in Japan" on both plug and box
• Sharp, consistent NGK branding on the ceramic insulator
• Clean, precise thread, hex, and metal shell finish
• No peelable part-number stickers

Buy from: NGK-authorised distributors, established automotive parts retailers with a verifiable supply chain, or reputable online platforms with genuine sourcing policies and clear return/refund terms.

Avoid: Unknown sellers with no transaction history, prices significantly below market rate for iridium NGK plugs, or plugs sold loose without original NGK packaging.

A counterfeit LKR7BIX-P will not deliver the service life or ignition consistency of the genuine product — and in the worst case, inferior electrode materials cause persistent misfires that no amount of cleaning or adjustment will resolve.

Shop genuine NGK LKR7BIX-P on AutoDecode — with verified sourcing, 3-piece KUV100-specific quantity, and pan-India delivery.

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Fitment Checklist

Before purchasing, confirm all of the following:

• Vehicle: Mahindra KUV100 (K2, K4, K6, or K8 variant)
• Fuel type: Petrol only — not diesel
• Engine: 1.2L mFalcon G80, naturally aspirated, 3-cylinder
• Quantity: 3 plugs per car
• NGK part number: LKR7BIX-P
• NGK stock number: 1396
• Verified seller with return policy
• On delivery: check part number, stock number 1396, Made in Japan marking
• Installation: torque to specification — do not over-tighten into the aluminium cylinder head
• Do not re-gap — iridium plugs are factory-set; adjusting the 0.6mm fine-wire tip with a conventional gapping tool will damage it

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Conclusion

The NGK LKR7BIX-P is the correct iridium specification for the Mahindra KUV100 1.2L mFalcon G80 petrol. It is not an upgrade — it is what the engine is designed to run. Each car needs exactly 3 plugs. The diesel variant uses glow plugs and has no application for this product.

With the KUV100 discontinued, sourcing from verified channels and checking packaging on delivery are essential steps — not optional ones. Replaced correctly and at the right interval, the LKR7BIX-P will keep your KUV100's engine starting cleanly and running smoothly for years to come.

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FAQs

Q1: Which spark plug does the Mahindra KUV100 1.2L petrol use?
The NGK LKR7BIX-P (stock number 1396), an Iridium MAX plug. The conventional copper alternative for the same engine is the NGK LKR7E. The LKR7BIX-P is the manufacturer-specified iridium grade for the mFalcon G80.

Q2: How many spark plugs does a KUV100 petrol need?
Exactly 3. The mFalcon G80 is a 3-cylinder engine. Despite the same part number appearing in Hyundai Kappa 4-cylinder fitment lists, the KUV100 requires only 3 plugs per service. Confirm the quantity when ordering.

Q3: Does the LKR7BIX-P fit the KUV100 diesel?
No. The KUV100 diesel uses the mFalcon D75 turbodiesel, which operates on compression ignition and requires glow plugs — a completely different component. The LKR7BIX-P has no application in the diesel variant.

Q4: Should I re-gap the LKR7BIX-P before fitting?
No. Iridium plugs are factory-set to the correct gap. The 0.6mm fine-wire tip must not be adjusted with a conventional gapping tool — doing so will damage the precision electrode. Fit as supplied.

Q5: Where can I buy genuine NGK LKR7BIX-P plugs for my KUV100?
From NGK-authorised distributors, established automotive parts retailers, or verified online platforms like AutoDecode with genuine sourcing and clear return policies. On delivery, check for part number LKR7BIX-P, stock number 1396, and "Made in Japan" on both the plug and packaging. Avoid unknown sellers with prices significantly below market rate.