Denso 4711 Spark Plug

Reliable Ignition Performance for Select Vehicles

The Denso Iridium TT spark plug, part number 4711, is engineered to deliver consistent ignition performance for a range of vehicles including Toyota, Lexus, Nissan, and Land Rover models. Designed with advanced materials and a twin-tip ground electrode, this spark plug supports efficient combustion and engine responsiveness.

• Iridium center electrode tip for enhanced durability and ignition
• Platinum twin-tip ground electrode design for improved spark stability
• Copper core center electrode for optimal conductivity
• Nickel ground electrode core material for reliable performance
• Pre-gap size of 1.0 mm for precise spark gap
• Flat seat type with 12 mm thread diameter and 26.5 mm reach
• Hex size of 14.3 mm for standard installation tools
• Manufacturer heat range rating of 20 for balanced heat dissipation

Advanced Iridium TT Technology

The Iridium TT line from Denso focuses on combining iridium and platinum materials to enhance spark plug longevity and ignition efficiency. The twin-tip ground electrode design reduces quenching and improves ignitability, which can contribute to smoother engine operation and better fuel economy. This technology is particularly suited for vehicles requiring precise ignition timing and durability under varied driving conditions.

Technical Details and Compatibility

This spark plug features a single ground electrode with a platinum twin-tip design, supported by a nickel core for strength. The center electrode uses a copper core with an iridium tip, balancing conductivity and wear resistance. The 1.0 mm pre-gap size ensures optimal spark performance. With a flat seat and 12 mm thread diameter, it fits a variety of engines requiring these specifications.

Compatible Vehicles

• Jaguar XF, XFR, XJ, XK, XKR
• Land Rover LR4, Range Rover, Range Rover Sport
• Lexus CT200h
• Mazda 3, 3 Sport, CX-3, CX-5, MX-5 Miata
• Nissan Altima, Frontier, Rogue, Rogue Select, Sentra, Versa, Versa Note
• Pontiac Vibe
• Scion iM, xD
• Suzuki Equator
• Toyota C-HR, Corolla, Corolla iM, iQ, Matrix, Prius, Prius Plug-In, Prius V, NV200

Common Applications and Issues Addressed

• Improves ignition reliability in vehicles experiencing misfires
• Supports efficient combustion to reduce rough idling
• Helps maintain fuel efficiency by ensuring consistent spark
• Reduces electrode wear for longer service intervals
• Enhances cold start performance in compatible models

Installation Notes and Tips

Ensure the spark plug gap is set to the manufacturer’s specification of 1.0 mm before installation. Use a 14.3 mm socket for proper tightening torque. Verify the flat seat type and 26.5 mm reach match your engine’s requirements. Avoid over-tightening to prevent thread damage. It is recommended to replace spark plugs in sets to maintain balanced engine performance.

Quality Assurance and Warranty

Denso manufactures the Iridium TT spark plug to meet strict quality standards, using premium materials such as iridium and platinum for durability. The part number 4711 is backed by Denso’s quality control processes, ensuring consistent performance. Warranty coverage details should be confirmed with the vehicle manufacturer or authorized service provider.