DENSO - 5306 - Iridium Spark Plug - IW20
The DENSO 5306 Spark Plug for Street. Six times harder than platinum, iridium withstands temperatures up to 4,000°F Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves 360° laser welding of electrode provides a seal that resists wear even in the worst conditions A reliable, quality-built component from a brand riders trust. Sold individually.
Features
- Six times harder than platinum, iridium withstands temperatures up to 4,000°F
- Because the iridium electrodes of these plugs can be shrunk to only 0.4mm, voltage requirements decrease while firing performance improves
- 360° laser welding of electrode provides a seal that resists wear even in the worst conditions
- Ground electrode features a tapered cut and U-groove that form a large volume area for the flame's center
Specs
- Ground Electrode Shape: Grooved
- Riding Style: Street
- Type: Resistor
- Electrode Tip Material: Iridium
- Ground Electrode Shape: Taper Cut
- Heat Range: 20
- Units: Each
- Electrical Resistance: 5k Ohms
- Product Name: Spark Plug
- Thread Reach: 19.1 mm
- Terminal Configuration: Threaded Stud
- Center Electrode Projection: Non-Projected
- Center Electrode Type: Fine Wire
- Hex Size: 20.6 mm
- Spark Gap: 0.043"
- Spark Gap: 1.1 mm
- Model: IW20
- Style: Iridium
Frequently Asked Questions - DENSO - 5306 - Iridium Spark Plug - IW20
How do I know if this part fits my vehicle?
Check the fitment information listed on this page against your exact year, make, model, and (where applicable) trim, engine size, or configuration. If your exact vehicle isn't listed, or you're not sure, use the product chat on this page or contact our support team before ordering - we're glad to help confirm fitment.
What does it mean if a product is listed as universal fit?
Universal fit means the product is designed to work across a range of vehicles, not that it's guaranteed to fit every one. Compare the listed measurements, mounting requirements, and connector or hardware specs against your specific vehicle before ordering, since some installations may need additional hardware or minor fabrication.
Where can I find installation instructions for this product?
General installation notes are provided above where available. For detailed step-by-step instructions, refer to the manufacturer's documentation included with the product, or use the product chat on this page for questions about difficulty, required tools, or whether professional installation is recommended.
What if I have more questions about this product?
Use the product chat on this page for fitment, specs, installation, and compatibility questions, or contact our support team directly for help before you order.
