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NGK 6917 Spark Plug
| Brand | NGK 6917 |
|---|---|
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Electrical Terminal Type | Non-Removable Nut |
| Ground Configuration | Surface Discharge |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Tip Design | Surface Discharge |
| Hex Size | 13/16 |
| Insulator Height | 67.00 |
| Manufacturer Heat Range | 7 |
| Part Number | BUR7EQ |
| Pre-Gap Size | .056 |
| Reach | 21.5 |
| Resistance | 5000 |
| Seat Type | Flat |
| Stock Number | 6917 |
| Thread Diameter | 14.00 |
| Product line | Standard Spark Plug |
| Fits | Mazda · 9 vehicles |
OE supplier heritage. Built to original equipment standards for dependable performance.
Surface discharge design. Helps promote efficient ignition and consistent operation.
Copper core construction. Nickel-tipped electrodes support durability and reliable spark delivery.
Cross-references Anchor 3106, Hayden 2626 and NGK 6917 for the same application. See all 13.
NGK BUR7EQ Spark Plug for Mazda RX-7
The NGK Standard Spark Plug 6917 is built for direct replacement service in select Mazda RX-7 applications. It combines a copper center electrode core, nickel center electrode tip, and surface discharge ground design to support consistent ignition performance in the specified fitments.
As part of NGK’s Standard Spark Plug line, this plug reflects the brand’s OE-focused approach to ignition components for domestic and import vehicles. The BUR7EQ configuration is engineered around original equipment standards, with the fitment and heat range specified for Mazda RX-7 leading positions.
Key Features
- Part number 6917, NGK BUR7EQ
- Standard spark plug for ignition service
- Surface discharge ground electrode design
- Copper center electrode core with nickel tip material
- Nickel ground electrode core material
- 5,000 ohm resistance
- Pre-gap size: 0.056 in.
- 14.00 mm thread diameter with flat seat
- 13/16 hex size and 21.5 reach
- Manufacturer heat range 7
Detailed Description
NGK 6917 is a standard replacement spark plug for Mazda RX-7 ignition service, including Fits 1993-1995 Mazda RX-7, N/A and Fits 1986-1991 Mazda RX-7, N/A. The BUR7EQ design uses a surface discharge ground configuration and a copper-core center electrode to support stable spark delivery in the listed applications. This part number is also identified as NGK 6917 for ordering and catalog matching.
This part cross-references Anchor 3106 for the same application.
Common Issues This Part May Address
- Hard starting in Mazda RX-7 leading applications
- Rough idle caused by worn spark plug electrodes
- Misfire from incorrect plug gap or degraded ignition performance
- Reduced throttle response from aged secondary ignition components
- Service replacement for plugs reaching the recommended interval
Installation Notes and Tips
Verify the engine application, leading position, and plug specification before installation. Confirm the 0.056 in. pre-gap and match the thread diameter, reach, seat type, and heat range to the vehicle requirements. Use proper spark plug service procedures to avoid thread damage and ensure correct torque during installation.
Quality Assurance
NGK is a major OE supplier and manufacturer of spark plugs for domestic and import vehicles in North America. With decades of automotive ignition experience and OE-oriented manufacturing standards, NGK supports consistent product quality for service replacement applications such as the Mazda RX-7.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1995 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Standard Spark Plug |
| 1994 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Standard Spark Plug |
| 1993 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Standard Spark Plug |
| 1991 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Actual OE Manufacturer; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 1990 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Actual OE Manufacturer; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 1989 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Actual OE Manufacturer; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 1988 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Actual OE Manufacturer; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 1987 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Actual OE Manufacturer; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| 1986 | Mazda | RX-7 | 1.3L | R2 | N/A | Leading; Gap 0.056"; Actual OE Manufacturer; 30,000 mi OE Mfr Recommended Service Interval; Standard Spark Plug |
| No rows match your filter. | ||||||