Denso 5366 Spark Plug
Denso 5366 Spark Plug
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Denso 5366 Tapered cut, u-groove ground electrode
Iridium Power® best demonstrates its performance improvement during Acceleration. The world's smallest center electrode and specially shaped ground electrode deliver maximum spark energy while withstanding Temperatures greater than 4000 Degree Fahrenheit. These features combine to achieve higher ignitability and require lower spark voltage than ever before. As a result, acceleration improves in comparison with normal plugs. To increase ignitability, the important point is to let the flame kernel produced by the spark to grow unobstructed. Normally, this can be accomplished by widening the spark gap. However, this causes spark voltage to increase, which has the opposite effect. Iridium Power uses DENSO's patented U-Groove ground electrode to achieve maximum ignitability while minimizing required Voltage.
Features & Benefits
- Tapered cut, u-groove ground electrode
- Worlds smallest 0.4 millimeter iridium center electrode
- 360 degree laser welding assembly process
- Delivers maximum spark energy while withstanding temperatures greater than 4000 degree fahrenheit
- Features combine to achieve higher ignitability and require lower spark voltage than ever before
- Acceleration improves in comparison with normal plugs
- Unsurpassed center electrode durability
- Improved spark ignition for maximum combustion, even with lean air-fuel mixtures
- Available for many performance and power sports applications
- Limited 90 day warranty
Specifications
| Product Type | Tapered cut, u-groove ground electrode |
| Weight | 0.2 lb |
| Dimensions | 4 x 2 x 1 in |
| Brand | Denso |
| Manufacturer Part Number | 5366 |
| UPC | 042511053663 |
Recommended Items
Commonly ordered accessories for this product:
| Item | Brand | Manufacturer Part Number | Description |
|---|---|---|---|
| Inline Ignition Spark TES | Perform Tool | W86554 | Inline ignition spark tes |
Frequently Asked Questions
What stands out about this tapered cut, u-groove ground electrode?
Key details include 360 degree laser welding assembly process. Review the full feature list and specifications on this page for complete details.
How much does this product weigh?
This item weighs approximately 0.20 lb.
Shipping & Returns
Shipping & Returns
📦 Shipping:
Orders are processed within 1–2 business days. Standard delivery takes 3–7 business days, depending on your location.
↩️ Returns:
You may return or exchange products within 60 days of receiving your order. Items must be in original condition with proof of purchase. If your item is defective or damaged due to manufacturing issues, we’ll replace it at no additional cost.
