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

## 🔧 Product Description

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

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: 3112

## 🚘 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.

-   Evinrude (1.1 HP, 1947-1946) – Outboard Engine
-   Johnson (1.1 HP, 1947-1946) – Outboard Engine
-   Indian 651 – Chainsaw
-   Indian SUPER 50 – Chainsaw
-   Lancaster 500 – Chainsaw
-   Lancaster 585 – Chainsaw
-   Lancaster 600 – Chainsaw
-   Terrill 60 – Chainsaw
-   Terrill CS6 – Chainsaw
-   Terrill CS7 – Chainsaw
-   Onan CCK (LIGHT SERVICE) – Lighting Plants and Generator
-   Deines (ONAN) – Lawnmower
-   Lima (CLINTON) – Lawnmower
-   Sensation (ALL OTHER CLINTON S) – Lawnmower
-   Moore FARMETTE (ULTIMOTOR) – Outdoor Power Equipment
-   Onan CUA, KKA – Power Equipment Engine
-   Tractor (1952-1964) (GAS 4 CYL) – Farm Equipment
-   Baler (FORD 134 CU IN.) – Farm Equipment
-   Baler (FORD 172 CU IN.) – Farm Equipment
-   Haybine (FORD 134 CU IN.) – Farm Equipment
-   Loader (23HP. KOHLER K582) – Farm Equipment
-   Speedrower (FORD 173 CU IN.) – Farm Equipment
-   Fulton 20 – Industrial Tractors & Lift Truck
-   American Motors Ambassador (1964) – 6-8 per engine
-   American Motors American (1962-1958) – 6-8 per engine

That is the 25 most common of 35 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.

-   Autolite: 217, 218, 2677, 3327, 437, 497
-   Motorcraft: AL11, AL9, AL9X, ATL8
-   ACDelco: 45L, C45L, R45LS
-   Champion: 857, H11, RH18Y
-   DENSO: 6013, W14L
-   Torch: Z4C, Z4JC
-   Accel: 168

## 📦 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-4L NGK spark plug
- B-4L NGK spark plug firing end

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