Denso 671-6239 Direct Ignition Coil Boot Kit

Denso Direct Ignition Coil Boot Kit

Denso 671-6239 is a direct ignition coil boot kit built for OE-style service on select Jeep applications. It uses silicone boot material and a black finish to match factory-style form and performance, with the fit and construction aligned to original equipment standards.

The Denso First Time Fit COP boot line is engineered to mirror the factory-installed boot in shape, color, and performance. For Jeep Wrangler, Grand Cherokee, and Cherokee ignition service, this part number 671-6239 provides a direct replacement path for worn coil boot components.

Key Features

• Direct ignition coil boot kit for OE-style replacement
• Silicone boot material for dependable high-heat service
• Black boot color for factory-style appearance
• Male/female terminal design with 1 terminal
• Built to meet or exceed OE/OES standards
• Denso First Time Fit product line for factory-matched form and fit

Detailed Description

Denso 671-6239 is a direct ignition coil boot kit designed for ignition service on 2000-2006 Jeep Wrangler, 1999-2004 Jeep Grand Cherokee, and 2000-2001 Jeep Cherokee. The boot construction uses silicone and is made to match the original boot’s dimensions and performance characteristics, helping maintain consistent ignition transfer at the coil-on-plug connection. If you are replacing aging ignition coil boots on a Jeep Wrangler, Grand Cherokee, or Cherokee, this Denso boot kit supports a factory-style repair with OE-level fitment.

This part cross-references NGK CPB-CR002 for the same application.

What It Helps Address

• Cracked or heat-damaged ignition coil boots
• Misfire conditions caused by worn boot insulation
• Moisture intrusion at the coil-to-spark plug connection
• Rough idle related to deteriorated ignition boot material
• Loss of ignition performance from aged factory boots

Installation Notes and Tips

Verify vehicle application before installation using the listed fitment for 2000-2006 Jeep Wrangler, 1999-2004 Jeep Grand Cherokee, and 2000-2001 Jeep Cherokee. Inspect the coil and spark plug connection points for carbon tracking, corrosion, or heat damage before installing the new boot. Clean mating surfaces and confirm the boot seats fully on the coil and plug ends for proper electrical contact.

Quality Assurance

Denso First Time Fit COP boot sets are built to match factory-installed boots in form, fit, color, and performance, with construction that meets or exceeds OE/OES standards.