# B-4 NGK Standard Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Standard Spark Plug – Part Number: B-4**

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: 3210
-   Thread: 14 mm
-   Reach: 9.5 mm (3/8 in)
-   Hex: 20.8 mm (13/16 in)
-   Seat: Gasket

## 🚘 Application

Listed in NGK's application charts for marine, motorcycle, ATV and snowmobile equipment and lawn, garden and commercial 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.

-   Sears 58241 (2 HP) – Outboard Engine
-   Sears 58250 (2 HP) – Outboard Engine
-   Angel ALL MODELS – Motorcycle
-   O.M.C. - Snowmobile Engines M215 (362)
-   Lombard 4 – Chainsaw
-   Lombard 7 – Chainsaw
-   Pioneer F, G – Chainsaw
-   Pioneer M – Chainsaw
-   Wright C50, C50D, C50SG – Chainsaw
-   Wright GS 218 – Chainsaw
-   Wright GS2520 – Chainsaw
-   Fedway (IRON HORSE) – Lawnmower
-   Homelite (M26) – Lawnmower
-   Homelite (YARD TRAC) – Lawnmower
-   National (KOHLER) – Lawnmower
-   Pennington (CLINTON) – Lawnmower
-   Roof (CLINTON) – Lawnmower
-   Roof (KOHLER) – Lawnmower
-   Rpm (POWER PRODUCTS) – Lawnmower
-   Wizard (PROPULSION VE901R) – Lawnmower
-   Hurst JAWS OF LIFE – Outdoor Power Equipment
-   Scythe JHJ-37 – Outdoor Power Equipment
-   Kawasaki KF64 (6.5HP) – Power Equipment Engine
-   Mitsubishi T240 (2.4HP) – Power Equipment Engine
-   Mitsubishi T430 (4.3HP) – Power Equipment Engine

That is the 25 most common of 71 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.

-   ACDelco: 45, 46, 48, B4031, B45, C45, C46, C47 and 7 more
-   Motorcraft: A7, A7C, A7CX, A7U, A7X, A9, A9X, AT8 and 4 more
-   Autolite: 255, 255BP, 255DP, 295, 295DP, 297, 3017, 306 and 3 more
-   DENSO: 6008, 6033, W14, W14-U, W14-U10, W14US
-   Bosch: 7806, W10E, W10EC, W9E, W9EC
-   Champion: 511, 533, J11, J11C, UJ11G
-   Magneti Marelli: CW3C, CW3CJ, CW4C, CW4CJ, CW5C
-   Brisk: K19

## 📦 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 |

## Images

- B-4 NGK spark plug

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/b-4-ngk-standard-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03