# R6254K-105 NGK Racing Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Racing Spark Plug – Part Number: R6254K-105**

NGK racing spark plugs are built for sustained high-RPM, high-temperature competition use, with precious-metal electrodes and cold heat ranges chosen for heavily loaded engines. Racing plugs are application-specific – heat range selection is critical, so confirm the specification for your engine before fitting.

## ⚙️ Key Features

-   Competition-grade construction for sustained high RPM and cylinder temperatures
-   Cold heat range for heavily loaded engines
-   Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer
-   Triple seals prevent leakage
-   NGK Racing Series plugs are engineered to withstand the harshest engine conditions
-   Standard nickel centre electrode
-   Corrugated ribs reduce the risk of flashover

## 📏 Specifications

-   NGK stock number: 4076
-   Thread: Racing Spark Plugs
-   Reach: 19 mm (3/4 in)
-   Hex: 20.8 mm (13/16 in)
-   Seat: Gasket
-   Terminal: Solid
-   Type: Low Angle Ground Electrode Non-Resistor

## 🚘 Application

Listed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment. The gap is not the same on all of them – the chart lists between 0.5 mm and 1.0 mm depending on the engine, so check the line for yours.

-   Kawasaki KX125-H (125, 1991) – Motorcycle
-   Kawasaki KX125-J (125, 1993-1992) – Motorcycle
-   Kawasaki KX100 (100, 1997-1995) – Motorcycle
-   Kawasaki KX80-W (80, 2000-1998) – Motorcycle
-   Kawasaki KX80 (80, 2000-1992) – Race Carts / Go-Kart
-   Kawasaki KX85 (85, 2002-2001) – Race Carts / Go-Kart
-   Kawasaki KX125 (125, 1993-1991) – Race Carts / Go-Kart

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 27.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 27.00 AUD | In stock |

## Images

- R6254K-105 NGK racing spark plug

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/r6254k-105-ngk-racing-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03