Ngk Spark Plugs Special Spark Plug - Superior Power
Ngk Spark Plugs Special Spark Plug - Superior Power
Available in stock (15)
-
Estimated delivery: Feb 07 - Feb 11
About this product
About this product
Experience superior power and reliable performance with the NGK Spark Plugs Special Spark Plug. Built with high-quality materials and advanced engineering, this spark plug delivers consistent ignition and optimal combustion in a wide range of applications.
Description
The NGK Special Spark Plug is engineered for serious power and designed to perform in almost any type of application and riding style. Its versatile design provides a wide operating heat range, preventing fouling when running too cool and pre-ignition when running too hot. This ensures consistent and reliable performance under diverse conditions. Featuring high-alumina ceramics, this spark plug offers improved heat dissipation and exceptional electrical insulation. The deep-seated copper core provides a wider heat range, while the nickel alloy tip extends the plug's lifespan. With a 0.9 mm (0.035") spark gap and resistor type design, this spark plug is built to enhance your engine's efficiency and power output. The 14 mm thread size and 26.5 mm thread reach make it compatible with a wide range of engines. Upgrade to NGK and experience the difference.
Features & highlights
- Experience enhanced engine performance and reliability.
- High-alumina ceramics improve heat dissipation and electrical insulation.
- Deep-seated copper core provides a wider heat range for consistent operation.
- Nickel alloy tip ensures extended spark plug life.
- Versatile design suitable for various applications and riding styles.
- Resistor type design for optimal spark and reduced interference.
- Prevents fouling and pre-ignition for consistent performance.
Technical specifications
- Brand: NGK Spark Plugs
- Vendor Part Number: 6668
- Center Electrode Projection: Projected
- Center Electrode Type: V-Cut
- Electrical Resistance: 5k Ohms
- Electrode Tip Material: Nickel Alloy
- Ground Electrode Configuration: Single
- Ground Electrode Shape: Standard
- Heat Range: 6
- Hex Size: 16 mm (5/8")
- Spark Gap: 0.9 mm (0.035")
- Terminal Configuration: Solid Terminal
- Thread Reach: 26.5 mm
- Thread Size: 14 mm
- Type: Resistor Type
Important to know
Ensure the specifications match your engine requirements before installation.
Shipping & Return
Shipping & Return
Free shipping to GLS parcel shop parcel box for purchases over DKK 1,000.
GLS home delivery costs DKK 59.
We do our best to ship your order as quickly as possible. All orders are generally packed within 24 hours on weekdays.
There is a 14-day return policy. Read more
Parts Denmark Info
Parts Denmark Info
Parts Denmark is a new webshop based in Denmark. We have a physical location you can visit (No showroom yet), and we have both email and phone support in our opening hours.
Our company info is:
Parts Denmark ApS
VAT: DK45974758
Dam Holme 11
3660 Stenløse, Denmark
hello@partsdenmark.com
+45 222 333 29
Best regards,
William Svendsen & Martin Høyer (Owners)
Specifications
NGK SPARK PLUGS
6668
Spark Plug
14 mm
26,5 mm
0,9 mm (0.035")
Solid Terminal
6
16 mm (5/8")
Standard
Single
Nickel Alloy
V-Cut
Projected
5k Ohms
Resistor Type
Each


Who is behind Parts Denmark
Martin and William are the duo behind Parts Denmark — an unlikely but awesome combo of a tech-savvy young IT wizard and a seasoned motorcycle guru who’s seen (and fixed) it all. Together, we’ve built a team with big ambitions, plenty of passion, and a shared mission to create great things — side-by-side with you.

