Denso 671-4287 Direct Ignition Coil Boot Kit

Denso Ignition Coil Boot Kit for Mercedes-Benz

Denso 671-4287 is a direct ignition coil boot kit built to match factory-installed boot form, fit, color, and performance. It is a practical OE-style replacement for Mercedes-Benz ignition service, with silicone boot material and black finish for a clean, factory-correct appearance.

Compatible with 2003-2005 Mercedes-Benz C230, 2012-2015 Mercedes-Benz C250, and 2012-2014 Mercedes-Benz SLK250. The Denso First Time Fit line is engineered to meet or exceed OE/OES standards for construction and performance consistency.

Key Features

• Direct ignition coil boot kit for Mercedes-Benz applications
• OE-matched form, fit, color, and performance
• Silicone boot material for ignition service durability
• Black boot color for factory-style appearance
• Male/female terminal gender configuration
• Length: 098.00
• Part number: 671-4287

Detailed Description

Denso 671-4287 is part of the First Time Fit COP boot set line, a product line focused on exact replacement characteristics for coil-on-plug service. For drivers and technicians working on Mercedes-Benz C230, C250, or SLK250 ignition repairs, this boot kit supports a direct replacement approach without changing the original boot profile or visual match. The part number 671-4287 is also a useful reference when cross-checking ignition boot applications during maintenance or diagnosis.

This part cross-references CARQUEST 35-4429 for the same application.

What It Helps Address

• Cracked or heat-aged ignition coil boots
• Misfire conditions related to worn boot insulation
• Moisture intrusion at the coil-to-spark plug connection
• Hard starting caused by degraded ignition boot contact
• Loss of ignition performance from damaged boot material

Installation Notes and Tips

Inspect the coil, spark plug well, and surrounding ignition components before installation. Clean any oil, carbon tracking, or debris from the area so the new boot seats properly. Verify the terminal orientation and confirm the application against the vehicle year and model before service. This part fits 2003-2005 Mercedes-Benz C230, 2012-2015 Mercedes-Benz C250, and 2012-2014 Mercedes-Benz SLK250.

Quality Assurance

Denso First Time Fit products are built to meet or exceed OE/OES standards, with construction intended to mirror factory-installed components in form and performance. The Denso 671-4287 ignition coil boot kit is manufactured for direct-fit service on the listed Mercedes-Benz applications.