# CMR5H NGK Standard Compact Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Standard Compact Spark Plug – Part Number: CMR5H**

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: 7599
-   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.

-   Transfer Pump 100166 (31cc) – Outdoor Power Equipment
-   Tiller FG110 (1.1HP GX25) – Outdoor Power Equipment
-   Trimmer/Brushcutter HTT25, HHT25S (1.1HP GX25) – Outdoor Power Equipment
-   Trimmer/Brushcutter HHT25SLTA (HONDA GX25) – Outdoor Power Equipment
-   Trimmer/Brushcutter HHT35S (1.1HP GX25) – Outdoor Power Equipment
-   Trimmer/Brushcutter HHT35SLTA (HONDA GX35) – Outdoor Power Equipment
-   Trimmer/Brushcutter HHT35SUKA (HONDA GX35) – Outdoor Power Equipment
-   Trimmer/Brushcutter UMC425 (HONDA GX25) – Outdoor Power Equipment
-   Trimmer/Brushcutter UMC435 (HONDA GX35) – Outdoor Power Equipment
-   Honda WX10 (HONDA GX25) – Outdoor Power Equipment
-   Honda WX10K (1.1HP GX25) – Outdoor Power Equipment
-   Blower EB254 (24.5cc) – Outdoor Power Equipment
-   Blower EB344 (34cc) – Outdoor Power Equipment
-   Blower EB854, EB854RT (79.7cc) – Outdoor Power Equipment
-   Brush Cutter, Edger C254 (24.5cc) – Outdoor Power Equipment
-   Brush Cutter, Edger C344 (34cc) – Outdoor Power Equipment
-   Brush Cutter, Edger LE254 (24.5cc) – Outdoor Power Equipment
-   Hedge Trimmer AH254, AHS254 (ARTICULATING) (24.5cc) – Outdoor Power Equipment
-   Hedge Trimmer DH254-24, DH254-30 (24.5cc) – Outdoor Power Equipment
-   Hedge Trimmer HT254-30, HT254-40 (24.5cc) – Outdoor Power Equipment
-   Lawn Edger LE254 (24.5cc) – Outdoor Power Equipment
-   Multi Tool M254 (24.5cc) – Outdoor Power Equipment
-   Power Broom PS344 (34cc) – Outdoor Power Equipment
-   Trimmer/Brushcutter C254 (25.5cc) – Outdoor Power Equipment
-   Trimmer/Brushcutter C344 (34cc) – Outdoor Power Equipment

That is the 25 most common of 39 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.

-   Bosch: UFR7EC, USR7AC

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 15.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 15.00 AUD | In stock |

## Images

- CMR5H NGK spark plug
- CMR5H NGK spark plug firing end

---

> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/cmr5h-ngk-standard-compact-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03