Description

NGK ILZKR7D8 Spark Plug – Specifications, Denso Equivalent, Applications & Price in Sri Lanka

If you are looking for an NGK ILZKR7D8 spark plug in Sri Lanka, choosing the correct plug is important for reliable starting, smooth engine operation, fuel efficiency and long-term ignition performance.

The NGK ILZKR7D8 is a premium Laser Iridium spark plug designed for modern petrol engines that require a fine-electrode, long-life ignition plug. It is particularly associated with modern Japanese engines, including Suzuki applications using engines such as the K10C and K14C.

At AutoPartsStore.lk, you can purchase the original NGK ILZKR7D8 / Denso VXUH22I spark plug for delivery in Sri Lanka.

NGK ILZKR7D8 Key Specifications

The exact vehicle application should always be confirmed before installation because spark-plug specifications such as heat range, reach, projection, electrode design and clearance are engine-specific.

What Makes ILZKR7D8 Different?

The ILZKR7D8 uses an iridium centre electrode and is designed for modern engines where precise ignition is important.

Iridium electrodes can be made very fine while maintaining high durability. A fine centre electrode helps the ignition system produce a concentrated spark, which can support reliable ignition under a wide range of operating conditions.

The Laser Iridium design is also intended for long service life compared with conventional nickel spark plugs.

For vehicles designed around this plug, using the correct NGK specification can help maintain the engine’s original ignition characteristics.

NGK ILZKR7D8 Denso Equivalent

One of the most common cross-reference searches is:

NGK ILZKR7D8 → Denso VXUH22I

The Denso reference is useful when comparing NGK and Denso spark plugs. However, a cross-reference should not be treated as universal permission to substitute one plug into every engine. Denso itself recommends checking the vehicle application table because spark-plug construction and specifications can differ between manufacturers.

Therefore, if your vehicle manufacturer specifically specifies NGK ILZKR7D8, this is the safest starting point rather than selecting another plug simply because its heat range or physical dimensions appear similar.

Suzuki Applications for NGK ILZKR7D8

One important application for ILZKR7D8 is the Suzuki Swift VI.

NGK’s application catalog lists:

Suzuki Swift 1.0 VVT / VVT Hybrid – K10C engine

• Engine: K10C
• Capacity: 1.0 litre
• Number of cylinders: 3
• Spark plug: NGK ILZKR7D8
• Gap: 0.8 mm
• NGK stock number: 96412

NGK also lists the Suzuki Swift 1.4 WT Sport with the K14C engine using ILZKR7D8.

This makes ILZKR7D8 particularly relevant when servicing newer Suzuki vehicles imported into Sri Lanka.

Why Choosing the Correct Heat Range Matters

The number 7 in ILZKR7D8 represents NGK’s heat-range designation.

It is important not to assume that a different NGK plug with the same thread diameter and similar gap will work correctly.

For example, replacing ILZKR7D8 with another plug simply because it has a 7 heat range can still result in an incorrect application if the plug has a different reach, terminal design, projection, electrode configuration or required clearance.

For this reason, always match the plug against the vehicle, engine code and manufacturer specification.

ILZKR7D8 Spark Plug for Sri Lankan Vehicles

Sri Lanka has a large number of Japanese-imported vehicles, and many customers search for spark plugs using the exact NGK or Denso number.

Common searches include:

• NGK ILZKR7D8 Sri Lanka
• ILZKR7D8 price in Sri Lanka
• ILZKR7D8 Denso equivalent
• NGK ILZKR7D8 Suzuki Swift
• Suzuki K10C spark plug
• Suzuki K14C spark plug
• NGK Laser Iridium spark plug Sri Lanka
• NGK 96412 spark plug
• VXUH22I Sri Lanka

Searching by the exact part number is often the easiest way to identify the correct plug, but vehicle application should still be verified before purchase.

NGK Laser Iridium vs Standard Spark Plugs

Compared with conventional nickel spark plugs, Laser Iridium plugs are designed for longer service life and stable ignition performance.

The benefits of the correct iridium plug can include:

• Fine centre electrode
• Stable ignition
• Long service life
• Good resistance to electrode wear
• Reliable cold starting
• Consistent combustion
• Suitable performance for modern engine management systems

However, an iridium spark plug is not automatically better for every engine. The correct specification is more important than simply choosing an iridium plug.

If your engine is designed for ILZKR7D8, using the correct ILZKR7D8 is preferable to selecting a different iridium plug based only on price or appearance.

How Many ILZKR7D8 Spark Plugs Do You Need?

The quantity depends on the engine.

For example:

Suzuki K10C 1.0L three-cylinder engine:
3 spark plugs

Suzuki K14C 1.4L four-cylinder engine:
4 spark plugs

Always check the engine specification before ordering.

When Should You Replace Your Spark Plugs?

Spark-plug replacement intervals depend on the vehicle manufacturer, engine condition, driving conditions and the type of spark plug installed.

Vehicles operating frequently in heavy Sri Lankan traffic, short-distance driving and dusty or demanding conditions may require closer inspection.

A spark plug should also be checked if the vehicle develops:

• Difficult starting
• Rough idle
• Engine misfire
• Poor acceleration
• Increased fuel consumption
• Check-engine warning
• Hesitation during acceleration

These symptoms can have many causes, so replacing the spark plugs should not automatically be assumed to solve every ignition or engine problem.

Buy Genuine NGK ILZKR7D8 in Sri Lanka

If you need an NGK ILZKR7D8 Laser Iridium spark plug in Sri Lanka, AutoPartsStore.lk offers the ILZKR7D8 / VXUH22I application with island-wide delivery.

Before ordering, provide your vehicle model, year and engine code if you are unsure whether ILZKR7D8 is the correct plug.

NGK ILZKR7D8 Quick Reference

NGK: ILZKR7D8
Stock Number: 96412
Type: Laser Iridium
Heat Range: 7
Gap: 0.8 mm
Denso Reference: VXUH22I
Important applications: Suzuki K10C and K14C applications listed by NGK
Best practice: Confirm the exact vehicle and engine application before installation.

For genuine spark plugs and automotive parts in Sri Lanka, shop the NGK range at AutoPartsStore.lk.