DENSO – SC20HR11 Spark Plugs

Approvals and Standards

OEM Standard: This plug is engineered to meet or exceed the original equipment specifications for the vehicles it is designed for. DENSO is a primary OEM supplier for many Japanese manufacturers.

Key Specifications

• SC20HR11 is a spark plug made by DENSO.
• It is an Iridium-type spark plug (center electrode is iridium), with a single ground electrode design.
• Thread size: M12 × 1.25; Thread length: ~ 26.5 mm.
• Electrode gap (as delivered): ~ 1.1 mm.
• Spanner size (wrench): 14 mm.
• Tightening torque when installed: ~ 17 Nm.
• It’s a “resistor” spark plug (i.e. includes resistor to suppress interference) and uses a single earthed (ground) electrode.

In summary, the DENSO SC20HR11 is a top-tier, long-life spark plug that offers exceptional performance, reliability, and longevity for compatible modern engines.