Denso Iridium Spark Plug 3444 M10 for Motorcycles

Description

Product Overview

The Denso 3444 is an extra‑long‑life iridium spark plug designed specifically for motorcycles with an M10 × 1.0 thread. It combines a 0.7 mm fine‑wire iridium‑tipped center electrode with a platinum‑tipped ground electrode, delivering superior conductivity and durability. The plug features a machined metal exterior for precise fit and heat range control, and it meets OEM specifications (KF0120490B) for seamless vehicle‑specific installation.

Usage

Ideal for sport, touring and commuter motorcycles, this plug excels in high‑rev environments where reliable spark is critical. Whether you’re upgrading a stock engine or maintaining a performance bike, the 3444 provides consistent ignition across a wide range of temperatures and riding conditions.

Why Choose Us

Denso’s reputation for automotive quality ensures each plug undergoes rigorous testing for heat range, electrode wear and corrosion resistance. The iridium tip offers up to 10 times longer life than standard copper plugs, reducing maintenance intervals. Our product is backed by a global trade identification number (GTIN 00042511034440) and a proven track record in the automotive performance spark plug market.

Key Features

• 0.7 mm fine‑wire iridium‑tipped center electrode for rapid spark discharge
• Platinum‑tipped ground electrode enhances durability and reduces fouling
• M10 × 1.0 thread ensures precise fit for a wide range of motorcycle models
• Machined metal exterior provides optimal heat dissipation and stable heat range
• Vehicle‑specific fit (OEM part number KF0120490B) guarantees OEM‑level performance

FAQ

What motorcycles are compatible with the Denso 3444 plug?

The 3444 is engineered for motorcycles that use an M10 × 1.0 spark plug thread. It matches the OEM specifications for many popular sport and touring models. Check your service manual for exact compatibility.

How does the iridium tip improve performance?

Iridium’s high melting point and excellent conductivity create a more efficient spark, resulting in smoother combustion, better throttle response, and a significantly longer service interval compared with copper plugs.

Can I install the plug myself?

Yes. The plug uses a standard M10 thread and includes a torque specification in the installation guide. Ensure the engine is cool, use a torque wrench, and avoid over‑tightening.

What is the recommended gap setting?

The factory‑set gap is optimal for most applications. If adjustment is needed, refer to your motorcycle’s service manual for the exact gap specification.

Is this plug covered by a warranty?

Denso provides a limited warranty against manufacturing defects. Refer to the warranty card included with the product for details.