NGK 4221 Spark Plug
NGK 4221 Spark Plug
by NGKManufacturer Part Number: 4221
Alternative NGK part number(s): BR8ET
- Spanner Size: 20,8 mm
- Outer thread [mm]: 14,0
- Thread Length [mm]: 19,5
- Spark Plug: Fixed SAE connector
- Spark Position [mm]: 2,6
- Spark Plug: Nickel Middle Electrode
- Spark Plug: 3 - Earthed Electrode
- Spark Plug: interference Suppression 5 kOhm
- Spark Plug: with gasket seat
Product Details
| Brand | NGK |
| NGK article (MPN) | 4221 Alternative NGK part number(s): BR8ET |
| Vehicle subsystem | Ignition System |
Original (OEM) part numbers
Suitable for MAZDA vehicles
| OE manufacturer | OEM reference numbers |
|---|---|
| MAZDA | 364918600, 0000-18-3649, 3744-18-600 |
Aftermarket cross reference / interchange guide
The aftermarket competitive interchanges for NGK 4221 Spark Plug offered by DENSO, MOTORCRAFT manufacturers
| Manufacturer | Reference numbers |
|---|---|
| DENSO | W25EBR, W25EB, 3103 |
| MOTORCRAFT | AGR16C |
Vehicle fitment / NGK 4221 Spark Plug compatibility
This product fits the following models: MAZDA RX 7 , MAZDA RX 7 I, etc. See all vehicles this product (NGK 4221) fits below to verify fitment for your vehicle.| Make | Model | Variant | Period | Engine | Drive | Body Style |
|---|---|---|---|---|---|---|
| MAZDA | RX 7 SA | Wankel | 1979/05 - 1986/03 | 12AN2 105 hp 77 kW 0 L Wankel 12AN2 113 hp 83 kW 0 L Wankel 12AN2 115 hp 85 kW 1.1 L Wankel | Rear wheel | Coupe / Sports car / Grand tourer / Speedster / Roadster |
| MAZDA | RX 7 I SA | Wankel | 1979/05 - 1986/03 | 12AN2 105 hp 77 kW 0 L Wankel 12AN2 113 hp 83 kW 0 L Wankel 12AN2 115 hp 85 kW 1.1 L Wankel | Rear wheel | Coupe / Sports car / Grand tourer / Speedster / Roadster |
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