# BR9ES NGK Standard Resistor Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Standard Resistor Spark Plug – Part Number: BR9ES**

Spark plugs are a critical engine component, providing the spark that ignites the air-fuel mixture that drives an engine. NGK spark plugs feature trivalent plating – a silver/chrome-coloured finish on the threads – for corrosion resistance against moisture and chemicals, and are designed to meet or exceed OE standards.

## ⚙️ Key Features

-   Standard nickel centre electrode
-   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: 5722
-   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 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.

-   Aprilia MX 50 (50, 2004-2002) – Motorcycle
-   Aprilia RS 50 (50, 2005-2002) – Motorcycle
-   Aprilia RS 50 REPLICA (50, 2004-2000) – Motorcycle
-   Aprilia RS 50 TUONO (50, 2004-2003) – Motorcycle
-   Aprilia RX 50 (50, 2004-2001) – Motorcycle
-   Aprilia RX 50 RACING (50, 2004-2003) – Motorcycle
-   Aprilia TUONO 50 (50, 2005-2004) – Motorcycle
-   Beta RR 50 MOTARD (50, 2012-2008) – Motorcycle
-   Beta RR ENDURO 50 (50, 2012-2008) – Motorcycle
-   Cobra Moto CX65 (65, 2016-2012) – Motorcycle
-   Derbi ATLANTIS - PIAGGIO ENGINE (50) – Motorcycle
-   Gas Gas ROOKIE (50, 2001) – Motorcycle
-   Honda CR80R (80, 1985-1984) – Motorcycle
-   Honda CR60R (60, 1984-1983) – Motorcycle
-   Honda NSR50R - MINI 50 (50, 2004) – Motorcycle
-   Ktm 200 SX (200, 2004-2003) – Motorcycle
-   Ktm LC2 (125, 1999-1996) – Motorcycle
-   Ktm STING (125, 1998-1997) – Motorcycle
-   Ktm 105 SX (105, 2007) – Motorcycle
-   Ktm 85 SX (85, 2007) – Motorcycle
-   Ktm 85 XC (85, 2008) – Motorcycle
-   Vespa ET2 (49, 2001-1997) – Motorcycle
-   Vespa LX 2T (49, 2005) – Motorcycle
-   Yamaha WR200R (200, 1992) – Motorcycle
-   Yamaha YZ80 (80, 1983) – Motorcycle

That is the 25 most common of 89 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.

-   Champion: 818, 818C, 8902, 8902-1, 8902-2, QN2, QN2C, RN2 and 1 more
-   ACDelco: R41CXL, R41XL, S40XLR, S40XLR\*, S41XLR
-   Autolite: 3702, 3703, 4062, 4063
-   DENSO: 4045, W27ESR, W27ESR-U
-   Bosch: 7529, WR3CC
-   John Deere: TY26717, TY26718
-   Harley Davidson/Screamin' Eagle: HD7-8
-   Harley-Davidson: HD7-8
-   e3: E3.31

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 13.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 13.00 AUD | In stock |

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/br9es-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03