# BKR7EIX-11 NGK Iridium Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Iridium Spark Plug – Part Number: BKR7EIX-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: 6988
-   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.

-   Yamaha LZ200TX HPDI, 2000 TO 100874 (200 HP, 2001-2000) – Outboard Engine
-   Yamaha Z200TL HPDI, 2000 TO 150689 (200 HP, 2001-2000) – Outboard Engine
-   Yamaha Z200TX HPDI, 2000 TO 102420 (200 HP, 2001-2000) – Outboard Engine
-   Yamaha VZ175TL HPDI, 800105 TO 800201 (175 HP, 2001) – Outboard Engine
-   Yamaha Z175TX HPDI, 800101 TO 800231 (175 HP, 2001) – Outboard Engine
-   Honda XR650R (650, 2007-2000) – Motorcycle
-   Acura CSX (2010-2007) – 4-6 per engine
-   Acura Integra (2001) – 4-6 per engine
-   Acura RSX (2006-2002) – 4-6 per engine
-   Honda Civic (2011-2006) – 4-6 per engine
-   Honda S2000 (2009-2000) – 4-6 per engine
-   Saab 9-5 (2003-1999) – 4-6 per engine

## 🔄 Supersession & Cross Reference

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

-   DENSO: 3164, 3334, 6988, IK22, K22PR-TP11, K22PR-ZU11, W22EPR-ZU11
-   Motorcraft: AGPR12P, AGPS12P1

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 58.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 58.00 AUD | In stock |

## Images

- BKR7EIX-11 NGK iridium spark plug
- BKR7EIX-11 NGK spark plug firing end

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/bkr7eix-11-ngk-iridium-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03