Denso 671-6310 Direct Ignition Coil Boot Kit
OE Quality 60-Day Returns
Denso
 6 Boots

Denso 671-6310 Direct Ignition Coil Boot Kit

Brand Denso 671-6310
Boot Color Black
Boot Material Silicone
Length 040.00
Terminal Gender Female
Terminal Quantity 1
Product line 6 Boots
Fits Lexus and Toyota · 53 vehicles

OE direct replacement. Identical in form, fit, color, and performance to factory-installed boots.

Silicone boots. Heat-resistant material helps maintain reliable ignition performance.

First Time Fit. Built to meet or exceed OE/OES standards.

Cross-references Beck/Arnley 175-1072 and NAPA Mileage Plus 6716310 for the same application. See all 2.

$50.34Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.
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Denso Ignition Coil Boot Kit for Lexus and Toyota

Denso 671-6310 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 Lexus GS350, GS450h, IS250, IS350, RC350, and Toyota 4Runner, FJ Cruiser, and Tundra applications that use a 6-boot setup.

Key Features

  • Silicone boot material for consistent insulation and heat resistance
  • Black boot color with OE-style appearance
  • Female terminal design with 1 terminal per boot
  • Direct Ignition Coil Boot Kit construction for ignition service work
  • Built to meet or exceed OE/OES standards in form, fit, color, and performance
  • Length: 040.00

Product Details

The Denso First Time Fit COP boot line is engineered for direct replacement on factory coil-on-plug applications. This part number, 671-6310, is specified for Lexus and Toyota vehicles where the ignition boot must maintain proper electrical isolation and a secure connection at the coil and spark plug interface. It cross-references Beck/Arnley 175-1072 and NAPA Mileage Plus 6716310 for the same application.

Common Issues This Part Addresses

  • Cracked or heat-aged ignition coil boots
  • Misfire conditions caused by worn boot insulation
  • Carbon tracking at the spark plug end
  • Hard starting or rough idle related to weak ignition transfer
  • Loss of OE-style fit after boot deterioration

Installation Notes and Tips

Verify the vehicle’s ignition system configuration before ordering, since fitment is listed for specific Lexus and Toyota models with 6 boots. Inspect the coil, spark plug well, and surrounding seals during service, and replace any damaged components found during disassembly. Confirm the application against the part number 671-6310 and the vehicle’s model year before installation.

Quality Assurance

Denso First Time Fit COP boot sets are produced to match factory-installed specifications and are built to meet or exceed OE/OES standards. That makes Denso 671-6310 a direct-fit service part for maintaining original ignition system performance on supported Lexus GS350, GS450h, IS250, IS350, RC350, and Toyota 4Runner, FJ Cruiser, and Tundra applications.

Fitment

  • Fits 2013-2015 Lexus GS350, N/A
  • Fits 2007-2011 Lexus GS350, N/A
  • Fits 2013-2015 Lexus GS450h, N/A
  • Fits 2007-2011 Lexus GS450h, N/A
  • Fits 2006-2015 Lexus IS250, N/A
  • Fits 2006-2015 Lexus IS350, N/A
  • Fits 2015 Lexus RC350, N/A
  • Fits 2010-2015 Toyota 4Runner, N/A
  • Fits 2010-2014 Toyota FJ Cruiser, N/A
  • Fits 2012-2014 Toyota Tundra, N/A
  • Fits 2011 Toyota Tundra, N/A, From 10/2010
  • Fits 2006 Lexus GS300, N/A

Related reading

This part fits 53 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
2015LexusGS350N/A6 Boots
2015LexusGS450hN/A6 Boots
2015LexusIS250N/A6 Boots
2015LexusIS350N/A6 Boots
2015LexusRC350N/A6 Boots
2015Toyota4RunnerN/A6 Boots
2014LexusGS350N/A6 Boots
2014LexusGS450hN/A6 Boots
2014LexusIS250N/A6 Boots
2014LexusIS350N/A6 Boots
2014Toyota4RunnerN/A6 Boots
2014ToyotaFJ CruiserN/A6 Boots
2014ToyotaTundraN/A6 Boots
2013LexusGS350N/A6 Boots
2013LexusGS450hN/A6 Boots
2013LexusIS250N/A6 Boots
2013LexusIS350N/A6 Boots
2013Toyota4RunnerN/A6 Boots
2013ToyotaFJ CruiserN/A6 Boots
2013ToyotaTundraN/A6 Boots
2012LexusIS250N/A6 Boots
2012LexusIS350N/A6 Boots
2012Toyota4RunnerN/A6 Boots
2012ToyotaFJ CruiserN/A6 Boots
2012ToyotaTundraN/A6 Boots
2011LexusGS350N/A6 Boots
2011LexusGS450hN/A6 Boots
2011LexusIS250N/A6 Boots
2011LexusIS350N/A6 Boots
2011Toyota4RunnerN/A6 Boots
2011ToyotaFJ CruiserN/A6 Boots
2011ToyotaTundraN/AFrom 10/2010; 6 Boots
2010LexusGS350N/A6 Boots
2010LexusGS450hN/A6 Boots
2010LexusIS250N/A6 Boots
2010LexusIS350N/A6 Boots
2010Toyota4RunnerN/A6 Boots
2010ToyotaFJ CruiserN/A6 Boots
2009LexusGS350N/A6 Boots
2009LexusGS450hN/A6 Boots
2009LexusIS250N/A6 Boots
2009LexusIS350N/A6 Boots
2008LexusGS350N/A6 Boots
2008LexusGS450hN/A6 Boots
2008LexusIS250N/A6 Boots
2008LexusIS350N/A6 Boots
2007LexusGS350N/A6 Boots
2007LexusGS450hN/A6 Boots
2007LexusIS250N/A6 Boots
2007LexusIS350N/A6 Boots
2006LexusGS300N/A6 Boots
2006LexusIS250N/A6 Boots
2006LexusIS350N/A6 Boots
Directly replaces or cross-references 2 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Beck/Arnley — 175-1072NAPA Mileage Plus — 6716310