Denso 671-8186 Direct Ignition Coil Boot Kit

Denso Ignition Coil Boot Kit for Nissan and Infiniti

The Denso 671-8186 direct ignition coil boot kit is built to match the form, fit, color, and performance of the factory-installed boots. It is a practical OE-style replacement for ignition service on select Nissan Armada, TITAN, Pathfinder, NV2500, NV3500, and INFINITI QX56 applications.

With silicone boot material, a black finish, and a female terminal design, this Denso First Time Fit COP boot set is made to meet or exceed OE/OES standards in construction and performance. The 671-8186 is a direct ignition coil boot kit for drivers looking to restore reliable coil-to-plug connection quality.

Key Features

• Direct ignition coil boot kit for coil-on-plug service
• OE-style fit, form, color, and performance
• Silicone boot material for dependable high-heat use
• Black boot color with female terminal design
• Length: 124.46
• Brand line: Denso First Time Fit COP boot sets are built to OE/OES standards

Detailed Description

Denso 671-8186 is part of the 8 Boots product line and is engineered as a direct replacement boot set for ignition coil service. The construction is intended to mirror the factory-installed boot profile so the part installs and functions like the original component. For Nissan Armada, Nissan TITAN, and INFINITI QX56 ignition maintenance, this boot kit supports consistent coil-to-spark plug connection quality.

This part cross-references GP - Guaranteed Parts SPP51E and PROConnect 168001 for the same application.

What It Helps Address

• Misfires caused by worn or heat-damaged coil boots
• Cracked or hardened ignition boot material
• Loss of spark transfer at the coil-to-plug connection
• Rough running related to deteriorated ignition insulation
• Service needs on high-mileage ignition coil assemblies

Installation Notes and Tips

Verify the vehicle application before installation and compare the original boot length, terminal style, and coil connection points to the Denso 671-8186. Inspect the ignition coil, spark plug, and surrounding components for wear or contamination before reassembly. Clean, dry mating surfaces help maintain a secure electrical connection.

Compatible With 2008-2015 Nissan Armada, N/A; 2012-2015 Nissan NV2500, N/A; 2012-2015 Nissan NV3500, N/A; 2008-2015 Nissan TITAN, N/A; 2008-2012 Nissan Pathfinder, N/A; 2008-2010 INFINITI QX56, N/A; 2007 INFINITI QX56, N/A (From 08/2006); 2007 Nissan Armada, N/A (From 08/2006); 2007 Nissan TITAN, N/A (From 08/2006).

Quality Assurance

Denso First Time Fit COP boot sets are manufactured to meet or exceed OE/OES standards, with construction intended to match factory-installed parts in fit and performance. The 671-8186 is a direct ignition coil boot kit designed for consistent replacement quality across supported Nissan and INFINITI applications.