Ngk Spark Plug - Superior Performance
Ngk Spark Plug - Superior Performance
Available in stock (15)
-
Estimated delivery: Feb 07 - Feb 11
About this product
About this product
Upgrade your engine's performance with this premium NGK Spark Plug. Engineered for reliability and optimized combustion, this spark plug ensures efficient ignition and smooth operation. Experience enhanced fuel economy and reduced emissions with this high-quality component.
Description
The NGK Spark Plug delivers exceptional performance and longevity. Featuring trivalent metal plating, it provides superior anti-corrosion and anti-seizing properties, ensuring a secure and lasting connection. The pure alumina silicate ceramic insulator offers exceptional strength and heat transfer, preventing overheating and maintaining consistent performance under demanding conditions. Triple seals are incorporated to prevent leakage, ensuring optimal compression and combustion efficiency. Corrugated ribs effectively prevent flashover, while the copper core efficiently removes heat, contributing to a cooler running engine and extended spark plug life. With a 0.9 mm spark gap, this resistor-type spark plug is designed for optimal spark. Enjoy improved engine starts, smoother acceleration, and increased overall engine efficiency with this NGK spark plug.
Features & highlights
- Trivalent metal plating for superior corrosion and seizing resistance.
- Pure alumina silicate ceramic insulator for enhanced strength and heat transfer.
- Triple seals prevent combustion leakage and maintain optimal compression.
- Corrugated ribs minimize flashover for consistent ignition.
- Copper core maximizes heat dissipation for cooler engine operation.
- Resistor type spark plug reduces electrical noise.
Technical specifications
- Brand: NGK Spark Plugs
- Vendor Part Number: 3901
- Center Electrode Projection: Projected
- Center Electrode Type: Standard
- Electrical Resistance: 5k Ohms
- Electrode Tip Material: Nickel Alloy
- Ground Electrode Configuration: Single
- Ground Electrode Shape: Standard
- Heat Range: 7
- Hex Size: 16 mm (5/8")
- Spark Gap: 0.9 mm
- Terminal Configuration: Threaded Stud
- Thread Reach: 19.1 mm (3/4")
- Thread Size: 10 mm
- Type: Resistor
Important to know
Please verify compatibility with your motorcycle's make and model before purchase. Consult your owner's manual or a qualified mechanic for proper installation and gap adjustment.
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
3901
Spark Plug
10 mm
19,1 mm (3/4")
0.9 mm
Threaded Stud
7
16 mm (5/8")
Standard
Single
Nickel Alloy
Standard
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.

