NGK DCPR7E Spark Plug – Stock No. 3932
The NGK DCPR7E is a reliable, resistor-type spark plug for consistent ignition and smooth running. It uses a projected insulator nose to improve cold starts and reduce fouling. A copper core and nickel alloy electrode help pull heat away from the tip, keeping performance stable under load.
Use it as a quality replacement or when refreshing an engine before tuning. Expect cleaner combustion, steady idle, and dependable starts.
- Stable spark for smoother idle and throttle response
- Projected tip for better cold starting and reduced fouling
- Durable nickel electrode for everyday road use
| Part number | DCPR7E |
| NGK stock number | 3932 |
| GTIN | 087295139325 |
| Category | 686 – Spark Plug |
| Thread diameter | 12 mm |
| Thread pitch | 1.25 |
| Seat type | Flat seat with gasket |
| Reach (thread length) | 19 mm |
| Hex size | 16 mm |
| Heat range | 7 (NGK scale) |
| Resistor | Yes |
| Insulator projection | Projected |
| Centre electrode | Nickel alloy, copper core |
| Ground electrode | Standard J-type |
| Factory gap | 0.8 – 0.9 mm (adjust to spec) |
| Terminal type | Solid terminal |
Fitment guidance
Commonly used across many modern motorcycles, scooters, ATVs, and small-capacity engines that specify a 12 mm plug with 19 mm reach and 16 mm hex. Use the vehicle lookup to confirm, or check the Vehicle Fitment tab for full details.
Check before install: Match thread size, reach, seat type, and heat range to your engine’s spec. Set the gap to the manufacturer’s value. Do not overtighten.
The price displayed is for a single plug, please add the desired amount to your basket.


