# CMR6H NGK Standard Compact Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Standard Compact Spark Plug – Part Number: CMR6H**

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: 3365
-   Thread: 10 mm
-   Reach: 12.7 mm (1/2 in)
-   Hex: 16 mm (5/8 in)
-   Seat: Gasket
-   Terminal: Solid
-   Type: Compact

## 🚘 Application

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

-   Husqvarna 526XP (59.8cc 4.7HP) – Chainsaw
-   Husqvarna 545 (50.1cc 3.35HP) – Chainsaw
-   Husqvarna 550XP, 550XP G, 550 XP TRIOBRAKE (50.1cc 3.75HP) – Chainsaw
-   Husqvarna 555 (59.8cc 4.3HP) – Chainsaw
-   Husqvarna 562XP (59.8cc 4.7HP) – Chainsaw
-   Husqvarna 562XP G (59.8cc 4.7HP) – Chainsaw
-   Husqvarna T435 (35.2cc 2.01HP) – Chainsaw
-   Husqvarna T540 XP (37.7cc 2.4HP) – Chainsaw
-   Jonsered CS2252 (50.1cc) – Chainsaw
-   Jonsered CS2253 (50.1cc) – Chainsaw
-   Jonsered CS2258 (59.8cc) – Chainsaw
-   Jonsered CS2260 (59.8cc) – Chainsaw
-   Redmax GZ4000 – Chainsaw
-   Stihl MS150TC – Chainsaw
-   Stihl MS171 – Chainsaw
-   Stihl MS181, MS181C – Chainsaw
-   Stihl MS201, MS201C, MS201T – Chainsaw
-   Stihl MS211, MS211C – Chainsaw
-   Stihl MS251, MS251C – Chainsaw
-   Brushcutter/Trimmer CC 2245 (45.7cc) – Outdoor Power Equipment
-   Hedge Trimmer PPBP30 (30cc) – Outdoor Power Equipment
-   Trimmer/Brushcutter T2500 (24.5cc) – Outdoor Power Equipment
-   Blower, Sprayer BG56C, BG66, BG86, BG86C, SH56, SH86 – Outdoor Power Equipment
-   Blower, Sprayer BR500, BR550, BR600 – Outdoor Power Equipment
-   Edger FC56 – Outdoor Power Equipment

That is the 25 most common of 41 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: 965, RZ7C
-   Bosch: USR4AC
-   John Deere: TY26707

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 16.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 16.00 AUD | In stock |

## Images

- CMR6H NGK spark plug
- CMR6H NGK spark plug firing end

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/cmr6h-ngk-standard-compact-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03