Denso 671-4284 Direct Ignition Coil Boot Kit
OE Quality 60-Day Returns
Denso
 4 Boots

Denso 671-4284 Direct Ignition Coil Boot Kit

Brand Denso 671-4284
Boot Color Black
Boot Material Silicone
Length 102.60
Terminal Gender Male Female
Terminal Quantity 1
Product line 4 Boots
Fits Mazda, Ford, and Mercury · 50 vehicles

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

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

4 boots. Complete boot set for ignition coil service.

Cross-references CARQUEST 35-4160, NAPA Mileage Plus 6714284 and PROConnect 124019 for the same application. See all 3.

$43.90Free shipping
In stock · usually ships same day before 1pm CST
Step 1 — Confirm fitment
Free return shipping if it doesn't fit when you check fitment here first.
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
Step 2 — Quantity
Order total $43.90
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all Direct Ignition Coil Boot Kit options

Denso Direct Ignition Coil Boot Kit

Denso 671-4284 is a direct ignition coil boot kit built for OE-style fit and performance. It is made with silicone boot material and a black finish, and it follows the factory form and color used on the original boots.

The Denso First Time Fit COP boot line is engineered to match the original equipment design for consistent fitment on Mazda, Ford, and Mercury applications. If you need a replacement ignition coil boot set for a Mazda MX-5 Miata, Mazda 3, Mazda 6, CX-7, Ford Fusion, or Mercury Milan, this part number is built for those applications.

  • Direct ignition coil boot kit for coil-on-plug applications
  • Silicone boot material for heat-resistant service
  • Black boot color matches OE appearance
  • Male/female terminal gender configuration
  • OE-style form, fit, color, and performance
  • Part number 671-4284 for catalog and cross-reference lookup

Product Details

Denso 671-4284 is part of the First Time Fit COP boot set line, which is made to mirror the factory-installed boot design. The construction is built to meet or exceed OE/OES standards, helping maintain proper ignition coil boot fit and consistent electrical connection at the plug end. This makes it a practical choice for drivers searching for a Mazda MX-5 Miata ignition coil boot kit, a Mazda 3 coil boot replacement, or a Ford Fusion ignition boot set with OE-style dimensions.

This part cross-references CARQUEST 35-4160 and NAPA Mileage Plus 6714284 for the same application.

Common Uses

  • Replacing worn or heat-damaged ignition coil boots
  • Restoring proper coil-to-spark plug connection
  • Addressing misfire concerns caused by boot deterioration
  • Correcting cracked, hardened, or oil-contaminated boots
  • Maintaining OE-style ignition system fit on Mazda, Ford, and Mercury vehicles

Installation Notes and Tips

Verify the vehicle year, make, and model before ordering. Confirm the ignition coil boot style matches the original part, especially on 2006-2015 Mazda MX-5 Miata, 2006-2014 Mazda 6, 2006-2013 Mazda 3, 2007-2012 Mazda CX-7, 2006-2008 Ford Fusion, and 2006-2008 Mercury Milan applications. Inspect the ignition coil, spark plug well, and surrounding seals during service so the new boot seats correctly.

Quality Assurance

Denso First Time Fit COP boot sets are built to OE-style specifications and are manufactured to meet or exceed OE/OES standards. Part number 671-4284 is intended for direct replacement use on the listed applications, with factory-matched form and performance characteristics.

Related reading

This part fits 50 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelPositionNotes
2015MazdaMX-5 Miata—N/A4 Boots
2014Mazda6—N/A4 Boots
2014MazdaMX-5 Miata—N/A4 Boots
2013Mazda3—N/A4 Boots
2013Mazda6iN/A4 Boots
2013MazdaMX-5 Miata—N/A4 Boots
2012Mazda3—N/A4 Boots
2012Mazda6iN/A4 Boots
2012MazdaCX-7—N/A4 Boots
2012MazdaMX-5 Miata—N/A4 Boots
2011Mazda3—N/A4 Boots
2011Mazda6iN/A4 Boots
2011MazdaCX-7—N/A4 Boots
2011MazdaMX-5 Miata—N/A4 Boots
2010Mazda3—N/A4 Boots
2010Mazda6iN/A4 Boots
2010MazdaCX-7—N/A4 Boots
2010MazdaMX-5 Miata—N/A4 Boots
2009Mazda3—N/A4 Boots
2009Mazda3SN/A4 Boots
2009Mazda3iN/A4 Boots
2009Mazda6iN/A4 Boots
2009MazdaCX-7TouringN/A4 Boots
2009MazdaCX-7SportN/A4 Boots
2009MazdaCX-7Grand TouringN/A4 Boots
2009MazdaMX-5 Miata—N/A4 Boots
2008FordFusion—N/A4 Boots
2008Mazda3—N/A4 Boots
2008Mazda3SN/A4 Boots
2008Mazda3iN/A4 Boots
2008Mazda6iN/A4 Boots
2008MazdaCX-7TouringN/A4 Boots
2008MazdaCX-7SportN/A4 Boots
2008MazdaCX-7Grand TouringN/A4 Boots
2008MazdaMX-5 MiataTouringN/A4 Boots
2008MazdaMX-5 MiataSportN/A4 Boots
2008MazdaMX-5 MiataSVN/A4 Boots
2008MazdaMX-5 MiataGrand TouringN/A4 Boots
2008MercuryMilan—N/A4 Boots
2007FordFusion—N/A4 Boots
2007Mazda3—N/A4 Boots
2007Mazda6—N/A4 Boots
2007MazdaCX-7—N/A4 Boots
2007MazdaMX-5 Miata—N/A4 Boots
2007MercuryMilan—N/A4 Boots
2006FordFusion—N/A4 Boots
2006Mazda3—N/A4 Boots
2006Mazda6—N/A4 Boots
2006MazdaMX-5 Miata—N/A4 Boots
2006MercuryMilan—N/A4 Boots
Directly replaces or cross-references 3 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
CARQUEST — 35-4160NAPA Mileage Plus — 6714284PROConnect — 124019