# DR7EA NGK Standard Resistor Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Standard Resistor Spark Plug – Part Number: DR7EA**

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: 7839
-   Thread: 12 mm
-   Reach: 19 mm (3/4 in)
-   Hex: 18 mm
-   Seat: Gasket
-   Terminal: Threaded stud

## 🚘 Application

Listed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment and automotive vehicles. 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.

-   Honda BF90A1, SERIAL #BBBL-4400001-4409999 (90 HP) – Outboard Engine
-   Honda BF90A2, SERIAL #BBBL-4410001-4499999 (90 HP) – Outboard Engine
-   Honda BF90A3, SERIAL #BBBL-4500001-4599999 (90 HP) – Outboard Engine
-   Honda BF90A4, SERIAL #BBBL-4600001-4699999 (90 HP) – Outboard Engine
-   Honda BF90A5, SERIAL #BBBL-4700001-4799999 (90 HP) – Outboard Engine
-   Honda BF90A6, SERIAL #BBBL-4800001-4999999 (90 HP) – Outboard Engine
-   Honda BF90AT, SERIAL #BBBL-1000001-2999999 (90 HP) – Outboard Engine
-   Honda BF90AT, SERIAL #BBBU-1000001-2999999 (90 HP) – Outboard Engine
-   Honda BF90AW, SERIAL #BBBJ-3000001-4000000 (90 HP) – Outboard Engine
-   Honda BF90AW, SERIAL #BBBL-3000001-4000000 (90 HP) – Outboard Engine
-   Honda BF90AW, SERIAL #BBBU-3000001-4000000 (90 HP) – Outboard Engine
-   Honda BF90AX, SERIAL #BBBJ-4000001-9999999 (90 HP) – Outboard Engine
-   Honda BF90AX, SERIAL #BBBL-4000001-4200000 (90 HP) – Outboard Engine
-   Honda BF90AX, SERIAL #BBBU-4000001-9999999 (90 HP) – Outboard Engine
-   Honda BF90AY, SERIAL #BBBL-4200001-4400000 (90 HP) – Outboard Engine
-   Honda BF75A1, SERIAL #BBAL-4400001-4409999 (75 HP) – Outboard Engine
-   Honda BF75A2, SERIAL #BBAL-4410001-4499999 (75 HP) – Outboard Engine
-   Honda BF75A3, SERIAL #BBAL-4500001-4599999 (75 HP) – Outboard Engine
-   Honda BF75A4, SERIAL #BBAL-4600001-4699999 (75 HP) – Outboard Engine
-   Honda BF75A5, SERIAL #BBAL-4700001-4799999 (75 HP) – Outboard Engine
-   Honda BF75A6, SERIAL #BBAL-4800001-9999999 (75 HP) – Outboard Engine
-   Honda BF75AT, SERIAL #BBAL-1000001-2999999 (75 HP) – Outboard Engine
-   Honda BF75AT, SERIAL #BBAU-1000001-2999999 (75 HP) – Outboard Engine
-   Honda BF75AW, SERIAL #BBAL-3000001-4000000 (75 HP) – Outboard Engine
-   Honda BF75AW, SERIAL #BBAU-3000001-9999999 (75 HP) – Outboard Engine

That is the 25 most common of 130 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: 7409
-   Champion: RAX96C

## 📦 Condition

-   Brand new genuine product
-   Supplied in original packaging

## Details

- **Price:** 10.0 AUD
- **Vendor:** NGK
- **Type:** Ignition & Controls

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 10.00 AUD | In stock |

## Images

- DR7EA NGK spark plug

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/dr7ea-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03