# ILTR6G8G NGK Iridium Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Iridium Spark Plug – Part Number: ILTR6G8G**

NGK iridium spark plugs feature an iridium alloy on the centre electrode, welded on with a laser – one of the world's hardest metals, with a melting point of 2450°C, giving very high resistance to spark erosion and, on average, double the service life of a standard nickel spark plug.

## ⚙️ Key Features

-   Fine iridium-tipped centre electrode and platinum-tipped ground electrode for a slow wear rate, stable idle, improved fuel efficiency and lower emissions
-   Longer service life
-   Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
-   Corrugated ribs reduce the risk of flashover
-   Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer
-   Triple seals prevent leakage
-   Copper core aids in heat removal

## 📏 Specifications

-   NGK stock number: 96621
-   Thread: 14 mm
-   Reach: 25 mm
-   Hex: 16 mm (5/8 in)
-   Seat: Tapered
-   Terminal: Solid
-   Type: Projected

## 🚘 Application

Listed in NGK's application charts for automotive vehicles.

-   Buick Allure (2005) – 4-6 per engine
-   Buick LaCrosse (2005) – 4-6 per engine
-   Buick Rendezvous (2006-2004) – 4-6 per engine
-   Cadillac CTS (2007-2004) – 4-6 per engine
-   Cadillac SRX (2005-2004) – 4-6 per engine
-   Cadillac STS (2005) – 4-6 per engine
-   Ford Edge (2013-2012) – 4-6 per engine
-   Ford Edge (2017-2015) – 4-6 per engine
-   Ford Explorer (2013-2012) – 4-6 per engine
-   Ford Focus (2017-2016) – 4-6 per engine
-   Ford Fusion (2018-2017) – 4-6 per engine
-   Ford Taurus (2013) – 4-6 per engine
-   Jaguar XE (2017) – 4-6 per engine
-   Jaguar XF (2015-2013) – 4-6 per engine
-   Land Rover Discovery Sport (2016-2015) – 4-6 per engine
-   Land Rover LR2 (2015-2013) – 4-6 per engine
-   Land Rover Range Rover Evoque (2016-2012) – 4-6 per engine
-   Suzuki Grand Vitara (2010-2009) – 4-6 per engine
-   Suzuki XL-7 (2009-2007) – 4-6 per engine

## 🔄 Supersession & Cross Reference

NGK's cross-reference tables list this plug against these part numbers.

-   DENSO: 4719, IVT20TT
-   Motorcraft: CYFS12YPCFC, SP531

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 39.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 39.00 AUD | In stock |

## Images

- ILTR6G8G NGK iridium spark plug
- ILTR6G8G NGK iridium spark plug firing end

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/iltr6g8g-ngk-iridium-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03