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Denso 3113 Spark Plug
| Brand | Denso 3113 |
|---|---|
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Platinum |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Ground Electrode Quantity | 1 |
| Ground Electrode Tip Design | Double Platinum Chip |
| Hex Size | 16.0 |
| Manufacturer Heat Range | 20 |
| Pre-Gap Size | 0.8 |
| Reach | 19.00 |
| Resistance | 5000 |
| Seat Type | Flat |
| Thread Diameter | 14.00 |
| Product line | Double Platinum |
| Fits | Toyota · 6 vehicles |
OE-standard performance. Built to strict durability and emissions standards.
Double platinum design. Platinum tip and chip help promote consistent ignition.
Spark plug. Secondary ignition component for reliable engine firing.
Cross-references DENSO Auto Parts PQ20R-P8 and Toyota 90919-01145 for the same application. See all 2.
Denso Double Platinum Spark Plug 3113
Denso Double Platinum spark plug 3113 is built for OE-style ignition performance in compatible Toyota applications. It is engineered for 1987-1992 Toyota Supra models and uses a double platinum chip ground design to support stable spark delivery and long service life.
Key Features
- Double Platinum line for consistent ignition performance
- Platinum center electrode tip with nickel ground electrode core
- 0.8 pre-gap size for OE-style setup
- 5000 ohm resistance for ignition system compatibility
- 14.00 mm thread diameter, 19.00 mm reach, and flat seat design
- Compatible with 1987-1992 Toyota Supra, N/A
Product Details
The Denso Double Platinum line is designed for drivers who want an OE-focused spark plug built around durability, emissions control, and steady performance. Part number 3113 uses a copper center electrode core with a platinum tip and a double platinum chip ground electrode design to help maintain reliable spark characteristics over time. This spark plug cross-references Denso Auto Parts PQ20R-P8 and Toyota 90919-01145 for the same application. It is a direct fit for 1987-1992 Toyota Supra, N/A, and is a strong match for buyers searching for Denso 3113 spark plug or Toyota Supra spark plug replacement.
Common Issues This Part Can Address
- Hard starting caused by worn spark plugs
- Rough idle from inconsistent ignition output
- Misfire conditions related to degraded plug electrodes
- Reduced throttle response from weak spark delivery
- Maintenance replacement for aging OE-style ignition components
Installation Notes and Tips
Verify the thread diameter, reach, seat type, and pre-gap before installation. Use the specified gap and torque procedure for the vehicle application, and inspect ignition wires, coils, and related secondary ignition components at the same time. Confirm fitment against the vehicle’s engine configuration before ordering, especially when sourcing a Denso 3113 spark plug for a Toyota Supra.
Quality Assurance
Denso states that this spark plug is manufactured to OE performance, durability, and emissions standards. The Double Platinum design reflects an OE-oriented product line intended for consistent operation in the listed Toyota Supra applications.
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1992 | Toyota | Supra | N/A | Double Platinum |
| 1991 | Toyota | Supra | N/A | Double Platinum |
| 1990 | Toyota | Supra | N/A | Double Platinum |
| 1989 | Toyota | Supra | N/A | Double Platinum |
| 1988 | Toyota | Supra | N/A | Double Platinum |
| 1987 | Toyota | Supra | N/A | Double Platinum |
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