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Denso 3051 Spark Plug
| Brand | Denso 3051 |
|---|---|
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | U-Groove |
| Hex Size | 20.6 |
| Manufacturer Heat Range | 20 |
| Pre-Gap Size | 0.8 |
| Reach | 19.00 |
| Seat Type | Flat |
| Thread Diameter | 14.00 |
| Product line | U-Groove Conventional |
| Fits | Kawasaki, Nissan, Suzuki, Yamaha, and MG · 1 vehicle |
U-Groove design. Improves ignitability for more efficient engine performance.
Copper core. Helps promote consistent spark delivery.
Nickel electrodes. Built with nickel at both electrode tips for dependable wear.
Cross-references DENSO Auto Parts W20ES-U for the same application. See all 1.
Denso 3051 Spark Plug for Nissan 280ZX
The Denso 3051 is a conventional spark plug built for reliable secondary ignition performance in the 1979 Nissan 280ZX. Its U-groove ground electrode design is engineered to improve ignitability, helping support more efficient combustion and consistent engine operation.
Key Features
- U-groove ground electrode tip design for improved spark exposure
- Nickel ground electrode tip material with a nickel center electrode tip
- Copper center electrode core for stable heat transfer
- Standard ground configuration with a flat seat
- 14.00 mm thread diameter and 19.00 mm reach
- Pre-gapped to 0.8 for the specified application
- Manufacturer heat range 20
Product Details
The Denso U-Groove Conventional line focuses on straightforward ignition performance with a design that helps the spark kernel form more readily at the plug gap. For the 1979 Nissan 280ZX, the Denso 3051 uses a copper-core center electrode and nickel electrode materials to support dependable heat control and consistent firing characteristics. This part cross-references DENSO Auto Parts (e.g., W20ES-U) for the same application.
Common Issues This Part Can Address
- Hard starting caused by worn or inefficient spark plugs
- Rough idle from inconsistent ignition firing
- Misfire symptoms related to degraded plug electrodes
- Reduced combustion efficiency from excessive plug wear
- Loss of throttle response tied to weak spark delivery
Installation Notes and Tips
Verify the thread diameter, reach, seat type, and heat range before installation. The Denso 3051 is specified for the 1979 Nissan 280ZX, and the pre-gap size is listed at 0.8, so confirm the gap matches the engine specification before tightening. Use proper spark plug service procedures to avoid cross-threading the 14.00 mm threads and to ensure correct seating on the flat seat design.
Quality Assurance
Denso manufactures ignition components to defined OE-style specifications, and the U-Groove Conventional design is intended to deliver consistent ignition performance for the listed application. Fits 1979 Nissan 280ZX, N/A.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1979 | Nissan | 280ZX | N/A | U-Groove Conventional |
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