Denso 671-6303 Direct Ignition Coil Boot Kit

Reliable Ignition Coil Boot Kit for Nissan and INFINITI Vehicles

The Denso 671-6303 Direct Ignition Coil Boot Kit is designed to provide a secure and durable connection between the ignition coil and spark plug. Engineered with high-quality silicone material, this ignition coil boot kit ensures consistent performance and longevity for various Nissan and INFINITI models.

• Length: 125.20 mm for precise fitment
• Boot Material: Durable silicone for heat resistance and flexibility
• Terminal Quantity: 1 per boot for direct ignition systems
• Terminal Gender: Male and female terminals for secure electrical connection
• Boot Color: Black for standard OEM appearance

About the Denso 6 Boots Product Line

The Denso 6 Boots product line focuses on ignition coil boot kits that deliver reliable electrical insulation and protection. Designed to meet OEM specifications, the 6 Boots line uses premium silicone materials to withstand high temperatures and prevent electrical arcing. The 671-6303 part number is part of this line, ensuring compatibility and durability for direct ignition systems in select Nissan and INFINITI vehicles.

Detailed Product Description

This direct ignition coil boot kit features a 125.20 mm length boot made from silicone, which offers excellent resistance to heat, oil, and environmental contaminants. The kit includes boots with one terminal each, featuring both male and female terminal genders to ensure a secure and stable connection between the ignition coil and spark plug. The black boot color matches OEM standards, maintaining the original engine bay appearance. This kit is compatible with a wide range of Nissan and INFINITI models, including the 350Z, 370Z, Altima, Maxima, Murano, Pathfinder, and various Q-series and FX-series vehicles.

Common Applications and Issues Addressed

• Restores proper ignition coil to spark plug connection
• Prevents misfires caused by worn or damaged ignition boots
• Reduces electrical arcing and improves ignition system reliability
• Eliminates engine performance issues related to faulty ignition coil boots
• Protects ignition components from heat and environmental damage

Installation Notes and Tips

• Ensure the engine is cool before installation to avoid burns
• Inspect ignition coils and spark plugs for wear before installing new boots
• Apply dielectric grease inside the boot to improve electrical conductivity and ease future removal
• Verify proper seating of male and female terminals for secure connection
• Follow vehicle-specific service manual instructions for ignition coil boot replacement

Quality Assurance and Warranty

Denso ignition coil boot kits, including part number 671-6303, are manufactured to meet strict OEM standards for fit, form, and function. The silicone boot material is tested for durability under high-temperature conditions typical of engine compartments. While specific warranty details may vary, Denso products generally come with a limited warranty covering defects in materials and workmanship to ensure customer confidence in product reliability.