Ngk Spark Plugs Resistor Spark Plug
Ngk Spark Plugs Resistor Spark Plug
Available in stock (15)
-
Estimated delivery: Feb 07 - Feb 11
About this product
About this product
Experience superior ignition performance with NGK Spark Plugs. These resistor spark plugs are engineered for a wide range of applications and riding styles, delivering consistent power and reliability. NGK's versatile plugs offer broad operating heat ranges, preventing fouling when running cool and pre-ignition when running hot.
Description
NGK Resistor Spark Plugs are designed to elevate your motorcycle's performance. The high-alumina ceramics provide exceptional heat dissipation and electrical insulation, ensuring consistent spark delivery. A deep-seated copper core significantly expands the heat range, optimizing performance across diverse riding conditions. The nickel alloy tip extends the plug's lifespan, offering long-lasting durability and value. With a 12 mm thread size and a 19.1 mm (3/4") thread reach, these plugs are built for easy installation and a secure fit, making them an ideal upgrade for enthusiasts and professionals alike. Count on NGK for reliable ignition and enhanced engine performance.
Features & highlights
- High-alumina ceramics improve heat dissipation and electrical insulation.
- Deep-seated copper core ensures a wider heat range for optimal performance.
- Nickel alloy tip provides enhanced durability and extended plug life.
- Versatile design suitable for various motorcycle applications and riding styles.
- Prevents fouling from running too cool and pre-ignition from running too hot.
- Reliable ignition for consistent power delivery.
Technical specifications
- Brand: NGK Spark Plugs
- Vendor Part Number: 6651
- Type: Resistor Type
- Electrical Resistance: 5k Ohms
- Electrode Tip Material: Nickel Alloy
- Ground Electrode Configuration: Single
- Heat Range: 7
- Hex Size: 16 mm (5/8")
- Thread Size: 12 mm
- Thread Reach: 19.1 mm (3/4")
Important to know
Please verify the thread size and thread reach of your current spark plug to ensure compatibility before purchasing.
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
6651
Spark Plug
12 mm
19,1 mm (3/4")
7
16 mm (5/8")
Single
Nickel Alloy
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.

