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NGK 7839 Spark Plug
| Brand | NGK 7839 |
|---|---|
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Electrical Terminal Type | Stud |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | Standard |
| Hex Size | 18 |
| Insulator Height | 50.00 |
| Manufacturer Heat Range | 7 |
| Part Number | DR7EA |
| Pre-Gap Size | .028 |
| Reach | .75 |
| Resistance | 5000 |
| Seat Type | Flat |
| Stock Number | 7839 |
| Thread Diameter | 12.00 |
| Product line | Standard Spark Plug |
| Fits | Yamaha, Suzuki, Arctic Cat, and BMW · 7 vehicles |
OE supplier heritage. Backed by NGK's long-standing original equipment standards.
Copper core design. Helps promote reliable ignition performance and durability.
Standard spark plug. A direct-fit replacement for many ignition service needs.
Cross-references Carlson 7839, Gates 7409 and 0217-713 for the same application. See all 11.
Will it fit your vehicle?
Free return shipping if it doesn't fit.
NGK DR7EA Spark Plug for BMW M3, M5, M6
NGK DR7EA 7839 is a standard spark plug built with an OE-equivalent design for specific BMW applications. It uses a copper center electrode core, nickel center and ground electrode tips, and a 5,000 ohm resistor to support stable ignition performance in the correct heat range.
Compatible with 1987-1988 BMW M6, 1988 BMW M5, and 1988-1991 BMW M3, this NGK Standard Spark Plug is built around the specifications listed for those vehicles. The DR7EA part number 7839 is a direct reference for buyers searching for an OE-style replacement spark plug for BMW M3, BMW M5, and BMW M6 applications.
Key Features
- NGK Standard Spark Plug, part number 7839
- OE-equivalent design for listed BMW fitments
- Copper center electrode core for dependable conductivity
- Nickel center and ground electrode tip materials
- 5,000 ohm resistor for ignition system noise suppression
- Pre-gapped at .028 inches
- Flat seat design with 12 mm thread diameter and .75 reach
- Heat range 7 for the specified application
Product Details
NGK is a long-standing OE supplier of spark plugs for domestic and import vehicles in North America, and this Standard Spark Plug line reflects that original-equipment focus. The DR7EA 7839 uses a stud terminal, standard ground configuration, single ground electrode, and nickel/copper construction to match the requirements of the listed BMW engines. Buyers looking for an NGK DR7EA spark plug for BMW M3, M5, or M6 can use this part number to identify the correct OE-style replacement.
Common Issues This Spark Plug Can Address
- Hard starting caused by worn or fouled spark plugs
- Rough idle from inconsistent spark delivery
- Misfire conditions related to plug wear or incorrect gap
- Reduced throttle response from degraded ignition performance
- Maintenance replacement for scheduled tune-up service
Installation Notes and Tips
Verify the vehicle application before installation and confirm the specified gap and heat range match the engine requirements. For the listed BMW fitments, the notes call for a .028 inch gap on 1988-1991 BMW M3 and a .024 inch gap on 1988 BMW M5 and 1987-1988 BMW M6. Inspect the ignition system, threads, and terminal style before installation to ensure proper fit and function.
Quality Assurance
NGK manufactures spark plugs to original equipment standards and supports a broad range of automotive applications with established OE supply experience. Part number 7839, also identified as DR7EA, is built to the specifications shown for the listed BMW vehicles.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 1991 | BMW | M3 | 2.3L | L4 | N/A | Spark Plug fitment note: 0.028 inches gap with OE equivalent design.; Standard Spark Plug |
| 1990 | BMW | M3 | 2.3L | L4 | N/A | Spark Plug fitment note: 0.028 inches gap with OE equivalent design.; Standard Spark Plug |
| 1989 | BMW | M3 | 2.3L | L4 | N/A | Spark Plug fitment note: 0.028 inches gap with OE equivalent design.; Standard Spark Plug |
| 1988 | BMW | M3 | 2.3L | L4 | N/A | Spark Plug fitment note: 0.028 inches gap with OE equivalent design.; Standard Spark Plug |
| 1988 | BMW | M5 | 3.5L | L6 | N/A | Gap 0.024"; OE Equivalent Design; Standard Spark Plug |
| 1988 | BMW | M6 | 3.5L | L6 | N/A | Gap 0.024"; OE Equivalent Design; Standard Spark Plug |
| 1987 | BMW | M6 | 3.5L | L6 | N/A | Gap 0.024"; OE Equivalent Design; Standard Spark Plug |
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