Ngk Iridium Ix Spark Plug
Ngk Iridium Ix Spark Plug
Available in stock (15)
About this product
About this product
Experience the pinnacle of spark plug technology with the NGK Iridium IX Spark Plug. Designed for ultimate performance and longevity, this spark plug delivers enhanced ignition and improved engine efficiency. Upgrade your motorcycle's performance with the reliable and high-quality NGK Iridium IX.
Description
The NGK Iridium IX Spark Plug represents the ultimate evolution in spark plug technology, brought to you by an industry leader. Featuring an iridium electrode that's significantly smaller than both platinum and conventional nickel electrodes, this spark plug dramatically reduces voltage requirements and extends the life of your ignition system. The ultra-small diameter center electrode ensures consistent spark and optimal combustion. The new metal shell plating provides enhanced anti-corrosion properties, guaranteeing long-lasting performance even in harsh conditions. Upgrade to the NGK Iridium IX for improved throttle response, superior anti-fouling, and peak engine performance. Easy to install and compatible with a wide range of motorcycles.
Features & highlights
- Iridium electrode provides superior spark and long life.
- Ultra-small diameter center electrode reduces voltage requirements.
- Enhanced anti-corrosion metal shell plating for durability.
- Improved throttle response and anti-fouling characteristics.
- Designed for peak engine performance and efficiency.
- Easy to install in a variety of motorcycle engines.
Technical specifications
- Brand: NGK Spark Plugs
- Vendor Part Number: 6684
- Center Electrode Projection: Projected
- Center Electrode Type: Necked Down
- Electrical Resistance: 5k Ohms
- Electrode Tip Material: Iridium
- Ground Electrode Configuration: Single
- Ground Electrode Shape: Grooved
- Heat Range: 8
- Hex Size: 20.6 mm (13/16")
- Spark Gap: 0.8 mm
- Terminal Configuration: Removable Nut
- Thread Reach: 19.1 mm (3/4")
- Thread Size: 14 mm
- Type: Resistor
Important to know
Ensure the spark plug is properly gapped and torqued during installation. Refer to your motorcycle's service manual for specific torque specifications.
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
6684
Spark Plug
14 mm
19,1 mm (3/4")
0.8 mm
Removable Nut
8
20,6 mm (13/16")
Grooved
Single
Iridium
Necked Down
Projected
5k Ohms
Resistor
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.

