NGK
NGK Spark Plug Wire Set

NGK 4649 Spark Plug Wire Set

Brand NGK 4649
Core Material Mag (Var. Pitch)
Insulation Color Blue
Insulation Material Silicone
Insulation Outside Diameter 7.00
Noise Suppression Type Yes
Part Number RC-ZE80
Stock Number 4649
Universal Or Specific Fit Specific
Product line NGK Spark Plug Wire Set
Fits Mazda · 3 vehicles

OE-standard quality. Built to meet original-equipment durability and performance expectations.

Silicone insulation. Helps resist heat and wear for dependable ignition performance.

Noise suppression. Helps reduce electrical interference for cleaner operation.

Cross-references AMS Automotive 4649, Anchor 3355 and Carlson 7589 for the same application. See all 9.

$80.00Free 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 $80.00
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

NGK Spark Plug Wire Set for Mazda 6

The NGK Spark Plug Wire Set, part number 4649, is a specific-fit ignition wire set for 2003-2005 Mazda 6 models. Built with blue silicone insulation and noise suppression construction, it is made for stable spark delivery and clean ignition performance in the vehicle’s original application.

Key Features

  • Specific-fit spark plug wire set for 2003-2005 Mazda 6
  • Blue silicone insulation for heat resistance and durability
  • Mag (Var. Pitch) core material for ignition signal control
  • Noise suppression design to help reduce electrical interference
  • 7.00 mm insulation outside diameter
  • NGK part number 4649 / RC-ZE80

Product Details

NGK Spark Plug Wire Set 4649 is part of NGK’s ignition product line, which includes spark plugs, glow plugs, ignition coils, coil-on-plug boots, and wire sets. NGK draws on extensive OE experience and automotive manufacturing expertise to produce ignition components built to meet OE standards for durability and operational performance. For drivers searching for a Mazda 6 spark plug wire set or an NGK 4649 ignition wire replacement, this part is listed for 2003, 2004, and 2005 Mazda 6 applications.

This part cross-references DENSO Auto Parts (e.g., 671-4066) for the same application.

What It Helps Address

  • Misfires caused by worn or damaged ignition wires
  • Rough idle from inconsistent spark delivery
  • Hard starting related to ignition voltage loss
  • Electrical noise that can interfere with ignition performance
  • Heat-related wire deterioration in the engine bay

Installation Notes and Tips

Verify the vehicle application before installation and route each wire to match the original layout on the 2003-2005 Mazda 6. Inspect spark plugs, coil connections, and wire routing at the same time to help prevent repeat ignition issues. Confirm the wire ends are fully seated and kept away from hot or moving engine components.

Quality Assurance

NGK manufactures ignition components to OE-level durability and performance expectations, supported by its long-standing focus on ignition systems and global automotive coverage. This NGK Spark Plug Wire Set 4649 is built as a direct replacement for the listed Mazda 6 applications.

This part fits 3 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2005Mazda62.3LL4N/ANGK Spark Plug Wire Set
2004Mazda62.3LL4N/ANGK Spark Plug Wire Set
2003Mazda62.3LL4N/ANGK Spark Plug Wire Set
Directly replaces or cross-references 9 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
AMS Automotive — 4649Anchor — 3355Carlson — 7589DENSO Auto Parts — 671-4066Intermotor — 5511235-4421175-6236124017700583