Denso Iuh27 Iridium Spark Plug
Denso Iuh27 Iridium Spark Plug
Available in stock (15)
-
Estimated delivery: Feb 05 - Feb 09
About this product
About this product
Maximize your engine's performance with the Denso IUH27 Iridium Spark Plug. This high-performance spark plug delivers superior ignition and longevity, ensuring a smooth and efficient ride. Built with cutting-edge technology and premium materials, the Denso IUH27 is designed for enthusiasts and professionals alike who demand the best.
Description
The Denso IUH27 Iridium Spark Plug features an iridium electrode that is six times harder than platinum and can withstand temperatures up to 4,000°F, providing exceptional durability and consistent performance. The ultra-fine 0.4mm iridium electrode reduces voltage requirements while dramatically improving firing performance. A 360° laser-welded electrode creates a robust seal, resisting wear and tear even in the most demanding conditions. The ground electrode's tapered cut and U-groove design create a large volume area, optimizing flame propagation and promoting efficient combustion. With its resistor type, the Denso IUH27 ensures reduced radio frequency interference, contributing to overall vehicle electronic stability and performance. Upgrade to Denso Iridium spark plugs for improved throttle response, enhanced fuel efficiency, and a longer lifespan.
Features & highlights
- Iridium electrode provides exceptional durability and performance.
- Ultra-fine 0.4mm electrode reduces voltage requirements.
- 360° laser welding ensures a robust, wear-resistant seal.
- Tapered cut and U-groove ground electrode optimizes flame propagation.
- Resistor type minimizes radio frequency interference.
- Improved throttle response and fuel efficiency.
- Designed for enthusiasts and professionals.
Technical specifications
- Brand: Denso
- Part Number: IUH27
- Center Electrode Type: Fine Wire
- Electrode Tip Material: Iridium
- Electrical Resistance: 5k Ohms
- Ground Electrode Shape: Taper Cut, Grooved
- Heat Range: 27
- 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
Ensure the Denso IUH27 Iridium Spark Plug is the correct fit for your specific motorcycle model. Refer to your vehicle's service manual for spark plug specifications and installation instructions.
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
DENSO
IUH27
Spark Plug
10 mm
19,1 mm (3/4")
0.9 mm
Threaded Stud
27
16 mm (5/8")
Taper Cut, Grooved
Iridium
Fine Wire
Non-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.

