Denso Nickel U-Groove Spark Plugs Set of 4 for Mazda 121 1.3L 1987–1990

PRODUCT OVERVIEW

Set of 4 Denso Nickel U-Groove spark plugs, designed to deliver reliable ignition performance and efficient combustion for compatible Mazda 121 DA 4 cyl 1.3L B3-S2 engines (1987–1990).

KEY FEATURES

• Denso Nickel U-Groove Series spark plugs
• Nickel alloy ground and center electrode
• U-Groove ground electrode for a larger, more stable spark
• Copper core center electrode for superior thermal conductivity
• Designed for consistent, efficient combustion and smooth engine performance

The U-Groove ground electrode creates a channeled path that increases spark nucleus size at the point of ignition. This helps promote improved flame travel and more complete, consistent combustion compared with conventional plug designs.

SPECIFICATIONS

• Centre electrode material: Nickel with copper core
• Fuel type: Petrol
• Thread diameter: 14 mm
• Hex size: 21 mm
• Reach: 19 mm
• Preset gap: 1.1 mm
• Quantity in set: 4 spark plugs

REFERENCE

• Reference part number: ZPN-75919

FITMENT NOTICE

This is a vehicle-specific component. Always confirm compatibility with your exact Mazda 121 DA 1.3L B3-S2 model and year (1987–1990) using your vehicle details or an appropriate parts catalogue before purchase and installation.