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Denso 3085 Spark Plug
| Brand | Denso 3085 |
|---|---|
| Ground Electrode Tip Design | U-groove |
| Ground Configuration | Standard |
| Ground Electrode Core Material | Nickel |
| Center Electrode Core Material | Copper |
| Center Electrode Tip Material | Nickel |
| Pre-Gap Size | 0.8 |
| Ground Electrode Quantity | 1 |
| Hex Size | 20.6 |
| Manufacturer Heat Range | 22 |
| Seat Type | Flat |
| Reach | 19.00 |
| Thread Diameter | 14.00 |
| Fits | — |
U-Groove design. Improves ignitability for more efficient engine performance.
Copper core. Helps promote consistent spark delivery.
Nickel tip materials. Provide durable electrode construction for dependable operation.
Cross-references DENSO Auto Parts W22EP-U and Saab 93 13 057 for the same application. See all 2.
Denso 3085 U-Groove Spark Plug Overview
The Denso 3085 spark plug is a conventional ignition component built for reliable secondary ignition performance. Its U-Groove electrode design helps improve ignitability, supporting more efficient combustion in the right application. This plug is a direct-fit style option for drivers searching for a Denso spark plug 3085 for Saab 9-3 ignition service.
Key Features
- U-Groove ground electrode tip design for improved spark exposure
- Nickel ground electrode tip and nickel center electrode tip materials
- Copper center electrode core for stable conductivity
- Standard ground configuration with one ground electrode
- Pre-gapped to 0.8 mm for the specified application
- Flat seat design, 14.00 mm thread diameter, 19.00 mm reach
- 20.6 mm hex size and manufacturer heat range 22
Product Details
As part of Denso’s U-Groove Conventional line, this spark plug focuses on dependable ignition performance in a straightforward OE-style format. The U-shaped ground electrode helps expose the spark kernel more effectively, which can support cleaner combustion and smoother engine operation when matched to the correct vehicle application. This Denso U-Groove Conventional spark plug is cross-referenced to Denso Auto Parts W22EP-U and Saab 93 13 057 for the same application. It is a practical choice for Saab 9-3 owners looking for a Denso 3085 replacement spark plug with the correct thread, reach, and seat style.
What It Helps Address
- Hard starting caused by worn or inefficient spark plugs
- Rough idle from weak or inconsistent ignition
- Misfire conditions related to degraded plug electrodes
- Reduced combustion efficiency from excessive plug wear
- Service replacement needs for Saab 9-3 ignition maintenance
Installation Notes and Tips
Verify the thread diameter, reach, seat type, and heat range before installation. The pre-gap size is listed at 0.8 mm, but the gap should still be checked against the vehicle specification during service. Use proper torque procedures and inspect ignition wires or coil-on-plug components at the same time to help prevent repeat ignition issues. For fitment-based searches, this part is commonly referenced for Saab 9-3 spark plug replacement and Denso 3085 ignition service.
Quality Assurance
Denso manufactures this spark plug as part of its conventional ignition lineup, using a copper core and nickel electrode materials for consistent electrical performance in the specified application. The design and dimensions are provided to match the intended OE-style fitment requirements.
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