Denso 671-4318 Direct Ignition Coil Boot Kit

Denso Ignition Coil Boot Kit Overview

Denso 671-4318 is a direct ignition coil boot kit built for OE-style service on select Toyota, Lexus, Scion, and Pontiac applications. It uses silicone boot material and a black finish to match factory-style form and performance, with the fit and construction expected for ignition coil boot replacement.

DENSO First Time Fit COP boot sets are engineered to mirror the original boot design used at the factory, making this part line a practical choice for restoring ignition coil boot condition on vehicles such as the Toyota Corolla, Toyota Prius, and Lexus CT200h. The Denso 671-4318 is also listed for Scion xD, Toyota Matrix, and Pontiac Vibe applications.

• Direct ignition coil boot kit for OE-style replacement
• Silicone boot material for ignition service applications
• Black boot color with factory-style appearance
• Female terminal design with 1 terminal
• Built to meet or exceed OE/OES standards in construction
• Part number 671-4318 for catalog and service lookup

Product Details and Fitment

This Denso First Time Fit COP boot set is made to match factory-installed boots in form, fit, color, and performance. It is a direct ignition coil boot kit for vehicles that use coil-on-plug style ignition service parts, and it is listed for 2011-2015 Lexus CT200h, 2009-2015 Toyota Corolla, 2010-2015 Toyota Prius, 2008-2014 Scion xD, 2009-2013 Toyota Matrix, and 2010 Pontiac Vibe. If you are searching for a Denso 671-4318 ignition coil boot kit for Toyota Corolla or Prius service, this part follows the OE-style specification expected for those applications.

This part cross-references GP - Guaranteed Parts (e.g., SPP115E) and PROConnect (e.g., 154045) for the same application.

Common Replacement Reasons

• Cracked or heat-aged ignition coil boots
• Misfire symptoms tied to worn boot insulation
• Moisture intrusion around the coil boot area
• Loss of spark transfer efficiency at the plug end
• Service replacement during ignition coil maintenance

Installation Notes

Verify the vehicle year, make, and model against the listed fitment before installation. Inspect the ignition coil, spark plug well, and surrounding sealing surfaces for wear or contamination before installing the new boot. Confirm the female terminal connection seats properly and that the boot length and shape match the original part layout for the application.

Quality Assurance

Denso First Time Fit COP boot sets are built to OE/OES standards and are intended to match factory-installed boot specifications in appearance and performance. The Denso 671-4318 follows that OE-style approach for service replacement on the listed Toyota, Lexus, Scion, and Pontiac vehicles.