# BR10EIX NGK Iridium Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Iridium Spark Plug – Part Number: BR10EIX**

Iridium NGK spark plugs offer a longer service life than a standard nickel-tipped spark plug: while nickel-alloy plugs offer a service life of roughly 20,000-40,000km, NGK Iridium IX spark plugs offer a service life of up to 60,000km, so fewer replacements are needed over time despite the higher initial cost.

Precious-metal spark plugs like the NGK Iridium IX also offer higher ignitability, achieved with an exposed fine-tip centre electrode that promotes superior flame growth compared with a standard spark plug. Iridium has a much higher melting point (2410°C) than nickel (1453°C), allowing the centre electrode diameter to be reduced from 2.5mm to 0.6mm – a smaller electrode mass that reduces the impedance to flame progress, helping acceleration, fuel consumption and idle quality.

## ⚙️ Key Features

-   Fine iridium-tipped centre electrode for a slow wear rate and stable idle
-   Longer service life than standard nickel plugs
-   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
-   Copper core aids in heat removal
-   Triple seals prevent leakage

## 📏 Specifications

-   NGK stock number: 6801
-   Thread: 14 mm
-   Reach: 19 mm (3/4 in)
-   Hex: 20.8 mm (13/16 in)
-   Seat: Gasket
-   Type: 14mm Spark Plugs cont'd

## 🚘 Application

Listed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment. The chart shows a 0.5 mm gap for these engines, but check it against your engine's manual before fitting.

-   Aprilia 250 GP (250) – Motorcycle
-   Aprilia RX250 (250, 1986-1985) – Motorcycle
-   Aprilia TUAREG RALLYE (250, 1998-1985) – Motorcycle
-   Aprilia AF1 125 REPLICA 89 (125, 1998-1987) – Motorcycle
-   Aprilia AF1 125 SINTESI (125, 1998-1988) – Motorcycle
-   Aprilia AF1 FUTURA (125, 1998-1990) – Motorcycle
-   Aprilia AF1 SPORT (125, 1998-1990) – Motorcycle
-   Aprilia CLASSIC 125 (125, 1999-1995) – Motorcycle
-   Aprilia EUROPA 125 (125, 1998-1990) – Motorcycle
-   Aprilia PEGASO 125 (125) – Motorcycle
-   Aprilia RED ROSE 125 (125, 1996-1988) – Motorcycle
-   Aprilia RS 125 (125, 2009-2006) – Motorcycle
-   Aprilia RS 125 (125, 2002-1997) – Motorcycle
-   Aprilia RS 125 EXTREMA/REPLI. 20KW (125, 1998-1993) – Motorcycle
-   Aprilia RS 125 EXTREMA/REPLI. 23KW (125, 1998-1993) – Motorcycle
-   Aprilia RX 125 (125, 1998-1990) – Motorcycle
-   Aprilia TUAREG RALLYE (I) (125) – Motorcycle
-   Aprilia TUONO 125 (125, 2005-2004) – Motorcycle
-   Atk 125 LIQUID COOLED - 2-STROKE (125, 2003-1999) – Motorcycle
-   B.S.A. GOLD STAR RACER COMPETITION – Motorcycle
-   Beta 500 CR (500) – Motorcycle
-   Beta 350 CR (350) – Motorcycle
-   Beta 350 GS (350) – Motorcycle
-   Bultaco PURSANG - FRONT PLUG (370) – Motorcycle
-   Bultaco ASTRO - FRONT PLUG (360) – Motorcycle

That is the 25 most common of 127 applications NGK's charts list for this plug – ask us to check yours.

## 🔄 Supersession & Cross Reference

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

-   DENSO: 4057, 4070, 4123, 4179, 5318, 5319, 5716, 6904 and 11 more
-   Champion: N57G, N59G, N80G, N82G, N84G
-   Bosch: W06CS, W2CS
-   Brisk: L08W
-   Motorcraft: AG203

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 31.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 31.00 AUD | In stock |

## Images

- BR10EIX NGK iridium spark plug
- BR10EIX NGK iridium spark plug firing end

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/br10eix-ngk-iridium-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03