Description

NGK DILFR6F11G Spark Plug / Denso Equivalent – Specifications, Applications & Sri Lanka Guide

If you are searching for an NGK DILFR6F11G spark plug in Sri Lanka, this guide explains the plug’s specifications, Denso cross-reference, applications and important fitment information.

The NGK DILFR6F11G is a Laser Iridium spark plug designed for modern petrol engines requiring reliable ignition, long service life and precise combustion. It is particularly relevant to a range of Japanese and Asian vehicle applications.

At AutoPartsStore.lk, the NGK DILFR6F11G is available for customers looking for a premium replacement spark plug in Sri Lanka.

NGK DILFR6F11G Key Specifications

NGK spark-plug specifications should always be checked against the vehicle manufacturer’s application because similar-looking plugs can have different reach, electrode projection, heat range and construction.

What Is NGK DILFR6F11G?

The DILFR6F11G is part of NGK’s Laser Iridium range.

Laser Iridium spark plugs use a fine iridium centre electrode combined with a durable ground-electrode design. The fine electrode helps provide a concentrated spark while maintaining durability over a long service period.

For modern engines with electronic fuel injection and sophisticated engine-management systems, using the correct spark plug specification is particularly important.

A correctly matched spark plug can help maintain:

• Reliable engine starting
• Stable idle
• Consistent ignition
• Smooth acceleration
• Efficient combustion
• Reduced ignition misfires
• Long service life

However, a spark plug should not be selected only because it is an iridium plug. The exact engine application is the most important factor.

NGK DILFR6F11G Denso Equivalent

One of the most common searches for this plug is:

NGK DILFR6F11G → Denso IKH20TT

DENSO’s TT cross-reference specifically lists DILFR6F11G as equivalent to IKH20TT. DENSO’s broader cross-reference documentation also associates DILFR6F11G with FK20HR11.

Some aftermarket catalogs also list Denso VFKH20 as a cross-reference. Therefore, when purchasing or replacing the plug, the vehicle application should be checked rather than relying solely on a cross-reference number.

Quick Cross-Reference

NGK: DILFR6F11G
Denso: IKH20TT
Denso application reference: FK20HR11
Denso aftermarket cross-reference: VFKH20

For an exact vehicle application, always confirm the manufacturer’s specified spark plug before installation.

Why Use a Laser Iridium Spark Plug?

Modern petrol engines can benefit from the fine electrode design used in iridium spark plugs.

Compared with conventional nickel spark plugs, a correctly specified Laser Iridium plug can provide:

Fine centre electrode

The fine iridium centre electrode concentrates the ignition spark and is designed to maintain its shape over a long service period.

Excellent durability

Iridium is highly resistant to electrode wear, making it suitable for long-life spark-plug applications.

Stable ignition

A properly specified plug helps maintain consistent ignition throughout the operating range of the engine.

Long service life

Laser Iridium plugs are generally designed for substantially longer service than conventional spark plugs, although the actual replacement interval depends on the vehicle manufacturer’s maintenance schedule.

DILFR6F11G Vehicle Applications

DILFR6F11G is used across various vehicle applications, and application data can differ between markets and production years.

References associated with this plug include vehicles from manufacturers such as:

• Toyota
• Suzuki
• Honda
• Mitsubishi
• Hyundai
• Kia
• Subaru
• Daihatsu
• Fiat

Some OE references associated with the DILFR6F11G cross-reference include Toyota 90919-01247, 90919-01249, 90919-01191 and other manufacturer-specific numbers. Cross-reference databases also associate the plug with Suzuki, Honda, Mitsubishi, Subaru, Hyundai/Kia and other applications.

Because OE numbers and spark-plug requirements can vary by engine and market, customers should provide the vehicle model, year and engine code when fitment is uncertain.

NGK DILFR6F11G in Sri Lanka

Sri Lankan vehicle owners frequently search for spark plugs using the exact NGK or Denso part number.

Popular searches include:

• NGK DILFR6F11G Sri Lanka
• DILFR6F11G price Sri Lanka
• DILFR6F11G Denso equivalent
• NGK 97793 spark plug
• Denso IKH20TT
• Denso VFKH20
• FK20HR11 spark plug
• NGK Laser Iridium Sri Lanka
• NGK spark plugs Sri Lanka
• genuine NGK spark plug Sri Lanka

Using the exact part number is particularly useful when replacing an existing plug because it helps identify the correct product.

DILFR6F11G vs DILFR6D11

DILFR6F11G and DILFR6D11 are closely related NGK Laser Iridium plugs and both are associated with heat range 6 applications.

However, the suffix and electrode construction are important. They should not automatically be treated as interchangeable simply because the main part-number structure is similar.

If a vehicle manufacturer specifies DILFR6F11G, use that specification unless an official application or cross-reference confirms another plug as suitable.

This is especially important when servicing modern engines where spark-plug dimensions and electrode projection are carefully engineered.

How Many Spark Plugs Do You Need?

The required quantity depends on the engine.

A three-cylinder engine requires:

3 spark plugs

A four-cylinder engine requires:

4 spark plugs

A six-cylinder engine requires:

6 spark plugs

Always confirm the engine configuration before ordering.

When Should You Replace DILFR6F11G?

Spark-plug replacement intervals depend on the vehicle manufacturer’s maintenance schedule and operating conditions.

The plugs should also be inspected if you experience:

• Difficult starting
• Rough idle
• Engine hesitation
• Reduced acceleration
• Increased fuel consumption
• Engine misfire
• Check-engine warning

These symptoms can also be caused by ignition coils, injectors, sensors, fuel-system problems or other engine faults, so replacing spark plugs is not automatically the solution.

Buy Genuine NGK DILFR6F11G in Sri Lanka

If your vehicle requires NGK DILFR6F11G, AutoPartsStore.lk offers this premium Laser Iridium spark plug for customers in Sri Lanka.

The product is listed as:

NGK Spark Plug DILFR6F11G / VFKH20

Before ordering, confirm your vehicle’s make, model, year and engine code if you are unsure about compatibility.

NGK DILFR6F11G Quick Reference

NGK Part Number: DILFR6F11G
Stock Number: 97793
Technology: Laser Iridium
Heat Range: 6
Gap: Approximately 1.0–1.1 mm
Denso TT Cross: IKH20TT
Denso Reference: FK20HR11
Other Cross-Reference: VFKH20
Best Practice: Verify the exact vehicle and engine application before installation.

For genuine NGK spark plugs and automotive parts in Sri Lanka, visit AutoPartsStore.lk and search by your NGK part number, Denso number, vehicle model or engine code.