Spark plug U-Groove K20PR-U11 / 3121 Denso

Denso U-Groove Spark Plug

The Denso U-Groove spark plug is recognized for its distinctive electrode design. Featuring Denso's U-Groove ground electrode technology, it represents one of the innovations that helped establish the brand as a leader in automotive ignition systems.

Denso supplies original equipment components to vehicle manufacturers worldwide and is known for producing high-quality ignition products. The U-Groove series remains a trusted choice for drivers seeking reliable replacement spark plugs from an established OEM supplier.

As a key component within the ignition system, the spark plug plays an essential role in the combustion process. Choosing quality replacement parts helps support long-term engine operation and routine vehicle maintenance.

Highlights:

• Denso U-Groove spark plug
• Unique U-Groove ground electrode design
• Part of the engine ignition system
• Suitable for routine maintenance
• Manufactured by a leading OEM supplier

Please verify the correct spark plug specification for your vehicle before ordering.