# BPR4HS NGK Standard Resistor Spark Plug | Genuine NGK Spark Plug

## 🔧 Product Description

**NGK Standard Resistor Spark Plug – Part Number: BPR4HS**

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: 7823
-   Thread: 14 mm
-   Reach: 12.7 mm (1/2 in)
-   Hex: 20.8 mm (13/16 in)
-   Seat: Gasket
-   Type: Projected

## 🚘 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.

-   Aprilia SCARABEO 50 2T - MINARELLI (50, 2006-2000) – Motorcycle
-   Aprilia SONIC 50 (50, 2007-1998) – Motorcycle
-   Honda NC50 (50, 1983-1982) – Motorcycle
-   Kawasaki KDX50-A (50, 2006-2003) – Motorcycle
-   Midwest TTX50 (50, 2008-2007) – Motorcycle
-   Suzuki FA50 (50, 1986) – Motorcycle
-   Suzuki JR50 (50, 2006-1994) – Motorcycle
-   United Motors DT50 - ENDUROS 2-STROKE (50, 2005-2000) – Motorcycle
-   Kawasaki KFX50 (50, 2006-2004) – ATV
-   Kawasaki KSF50-A (50, 2006-2003) – ATV
-   Suzuki ALT-50 (50, 1986) – ATV
-   Suzuki LT-A50 (50, 2005-2002) – ATV
-   Ditch Devil CONCRETE SAW (11HP ROBIN) – Chainsaw
-   Ditch Devil CONCRETE SAW (12.5HP ONAN OHV) – Chainsaw
-   Elite CONCRETE SAW (11HP ROBIN) – Chainsaw
-   Elite CONCRETE SAW (12.5HP ONAN OHV) – Chainsaw
-   Echo EG-1500 – Lighting Plants and Generator
-   Echo EG-2300 – Lighting Plants and Generator
-   Echo EG-2400 (TO 1993) – Lighting Plants and Generator
-   Echo EG-3501 (TO 1993) – Lighting Plants and Generator
-   Echo EG-4300 – Lighting Plants and Generator
-   Echo EG-4300E – Lighting Plants and Generator
-   Echo EG-5500E – Lighting Plants and Generator
-   Generac G4000 – Lighting Plants and Generator
-   Generac S2600 – Lighting Plants and Generator

That is the 25 most common of 90 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.

-   DENSO: 4016, 4184, W14FP, W14FPR-L, W14FPR-U, W14FPR-UL
-   Champion: 929, 929C, 929G, RL95YC
-   Cummins: 167-0263-02
-   John Deere: TY6122
-   Torch: E4RTC

## 📦 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

- BPR4HS NGK spark plug
- BPR4HS NGK spark plug firing end

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> Source: [Sawley's Auto and Marine](https://www.sawleysautoandmarine.com.au/products/bpr4hs-ngk-standard-resistor-spark-plug-genuine-ngk-spark-plug)
> Updated: 2026-09-03