# BR7HS NGK Standard Resistor Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Standard Resistor Spark Plug – Part Number: BR7HS**

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: 4122
-   Thread: 14 mm
-   Reach: 12.7 mm (1/2 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. 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 (125 HP, 1972-1971) – Outboard Engine
-   Evinrude (115 HP, 1970-1969) – Outboard Engine
-   Evinrude CV4 (115 HP, 1998-1979) – Outboard Engine
-   Evinrude TURBOJET CV4 (115 HP, 1998-1994) – Outboard Engine
-   Evinrude CV4 (112 HP, 1997-1979) – Outboard Engine
-   Evinrude CV4 (110 HP, 1997-1979) – Outboard Engine
-   Evinrude STARFIRE (100 HP, 1972-1967) – Outboard Engine
-   Evinrude V4 (100 HP, 1980-1979) – Outboard Engine
-   Evinrude SPL CV4 (88 HP, 1997-1979) – Outboard Engine
-   Evinrude (85 HP, 1980-1968) – Outboard Engine
-   Evinrude TRIUMPH, 3-CYL. (65 HP, 1973-1972) – Outboard Engine
-   Evinrude 2-CYL. (55 HP, 1989-1976) – Outboard Engine
-   Evinrude (50 HP, 1979-1978) – Outboard Engine
-   Evinrude (40 HP, 1976-1974) – Outboard Engine
-   Evinrude COM 43 CID (40 HP, 1990-1981) – Outboard Engine
-   Evinrude (30 HP, 1998-1978) – Outboard Engine
-   Evinrude (28 HP, 1997-1978) – Outboard Engine
-   Evinrude (25 HP, 1977) – Outboard Engine
-   Evinrude 2-CYL. (25 HP, 1998-1977) – Outboard Engine
-   Evinrude (20 HP, 1993-1978) – Outboard Engine
-   Evinrude 2-CYL. (20 HP, 1998-1978) – Outboard Engine
-   Evinrude JET 2-CYL. (18 HP, 1998-1995) – Outboard Engine
-   Evinrude (15 HP, 1976-1974) – Outboard Engine
-   Evinrude 2-STROKE (15 HP, 1998-1994) – Outboard Engine
-   Evinrude COM (15 HP, 2001-1994) – Outboard Engine

That is the 25 most common of 170 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: 807M, 874, 874-1, 874C, 874M, 874S, L78C, RL4J and 5 more
-   DENSO: 4024, 6051, TR22, W22FSR, W22FSR-U
-   ACDelco: R41CF, S42FR, S42FR\*
-   Bosch: WR5A, WR5AC, WR5AP
-   Autolite: 3684, 422
-   John Deere: TY26710
-   Magneti Marelli: CW8NR
-   Motorcraft: AER2X
-   e3: E3.32

## 📦 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

- BR7HS NGK spark plug

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/br7hs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03