# BKR5EIX-11 NGK Iridium Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Iridium Spark Plug – Part Number: BKR5EIX-11**

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: 5464
-   Thread: 14 mm
-   Reach: 19 mm (3/4 in)
-   Hex: 16 mm (5/8 in)
-   Seat: Gasket
-   Terminal: Solid
-   Type: ISO Projected BK-Series Wide Gap

## 🚘 Application

Listed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment and automotive vehicles. The chart shows a 1.0 mm gap for these engines, but check it against your engine's manual before fitting.

-   Honda GL1800 A, B, C - GOLD WING (1800, 2016-2001) – Motorcycle
-   Honda NRX1800 - VALKYRIE RUNE (1800, 2005-2004) – Motorcycle
-   Kohler XKE6 (6.0 HP) – Race Carts / Go-Kart
-   Honda SXS700 (700, 2014) – ATV
-   Honda SXS700M2 (700, 2014) – ATV
-   Honda SXS700M4 (700, 2014) – ATV
-   Honda BIG RED (680, 2011-2009) – ATV
-   Honda FOREMAN 4X4 (500, 2013-2005) – ATV
-   Honda TRX500 FA,FE,FM (500, 2017-2015) – ATV
-   Honda FOURTRAX RANCHER 4X4 - TRX420FE/FM/TE/TM (420, 2017-2007) – ATV
-   Honda RANCHER - TRX420FA/FPA/FPE/FPM (420, 2017-2009) – ATV
-   Acura RL (2004-1996) – 4-24 per engine
-   Acura SLX (1999-1996) – 4-24 per engine
-   Acura TL (1998-1995) – 4-24 per engine
-   Acura Vigor (1994-1992) – 4-24 per engine
-   Chevrolet Corvette (1992-1990) – 4-24 per engine
-   Chevrolet Prizm (2002-1998) – 4-24 per engine
-   Chevrolet Tracker (2004-2001) – 4-24 per engine
-   Chrysler Cirrus (2000-1995) – 4-24 per engine
-   Chrysler Crossfire (2008-2004) – 4-24 per engine
-   Chrysler Sebring (2005-1995) – 4-24 per engine
-   Dodge Avenger (2000-1995) – 4-24 per engine
-   Dodge Colt (1994-1993) – 4-24 per engine
-   Dodge Stratus (2000-1995) – 4-24 per engine
-   Eagle Summit (1996-1992) – 4-24 per engine

That is the 25 most common of 198 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: 3160, 3161, 3166, 3412, 4701, 5303, 5603, IK16 and 6 more
-   Bosch: 4202, 4418, 9600, 9652, FR8DII33X, FR8DPX, FR8DPX+, FR8KII33X and 1 more
-   Autolite: XP3924, XP3924DP2, XP3926
-   Champion: 9003, 9003S
-   Beck Arnley: 1765267

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 34.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 34.00 AUD | In stock |

## Images

- BKR5EIX-11 NGK iridium spark plug

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/bkr5eix-11-ngk-iridium-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03