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NGK 7321 Spark Plug
| Brand | NGK 7321 |
|---|---|
| Resistance | 1 |
| Ground Electrode Tip Design | Standard |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Electrical Terminal Type | Removable nut |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | .028 |
| Ground Electrode Quantity | 1 |
| Hex Size | 3/4 |
| Insulator Height | 40.00 |
| Manufacturer Heat Range | 7 |
| Seat Type | Flat |
| Reach | .375 |
| Thread Diameter | 14.00 |
| Part Number | Bpm7a |
| Stock Number | 7321 |
| Fits | —3 vehicles |
OE-focused design. Built to original equipment standards for ignition service applications.
Copper core center electrode. Promotes stable heat transfer in the plug body.
Standard spark plug line. NGK’s long-running product family for automotive ignition service.
Cross-references AMS Automotive 6027, Anchor 2974 and Anchor 6049 for the same application. See all 26.
NGK BPM7A Spark Plug
The NGK 7321 spark plug is built for applications that call for a standard-resistance plug with a flat seat and a removable nut terminal. It uses a copper core center electrode with nickel tip materials for consistent ignition performance in the right engine application.
Key Features
- Standard spark plug design for ignition service applications
- Copper core center electrode for stable heat transfer
- Nickel tip materials on the center and ground electrodes
- Flat seat construction with a 14 mm thread diameter
- Pre-gapped to .028 for specified applications
- NGK part number 7321, also identified as BPM7A
Product Details
NGK 7321 is a BPM7A spark plug from NGK’s Standard Spark Plug line. The design combines a standard ground configuration, one ground electrode, and a removable nut terminal with a 3/4 hex size and .375 reach. For buyers searching for NGK spark plug 7321 or BPM7A spark plug fitment, this part is intended for engines that specify these exact dimensions and electrical characteristics. NGK’s OE supplier background and long automotive manufacturing history support its focus on original equipment standards and consistent production quality.
Common Uses
- Replacing a worn spark plug that no longer fires consistently
- Restoring ignition performance in engines that require a BPM7A-style plug
- Addressing misfire symptoms caused by electrode wear or fouling
- Correcting hard-start or rough-running conditions tied to plug condition
Installation Notes
Verify the engine’s required thread diameter, reach, seat type, heat range, and terminal style before installation. Confirm the specified gap and torque the plug to the manufacturer’s service specification. This part cross-references Champion Spark Plug (e.g., 858) for the same application.
Quality Assurance
NGK manufactures spark plugs to original equipment standards and supplies ignition components across domestic and import vehicle applications. The 7321 part number reflects NGK’s established OE-focused engineering and production practices.
| Year | Make | Model | Liters | Cylinders | Notes |
|---|---|---|---|---|---|
| 2004 | E-TON | Viper Jr. | -L | -- | Gap 0.028"; Sell Out and Reorder BPMR7A SOLID (Stock # 6703); Standard Spark Plug |
| 2003 | E-TON | Viper Jr. | -L | -- | Gap 0.028"; Sell Out and Reorder BPMR7A SOLID (Stock # 6703); Standard Spark Plug |
| 2002 | E-TON | Viper Jr. | -L | -- | Gap 0.028"; Sell Out and Reorder BPMR7A SOLID (Stock # 6703); Standard Spark Plug |
| No rows match your filter. | |||||