HomeIgnition > Ignition Wire and Related ComponentsNGK 9729 Spark Plug Wire Set
Part #: 9729

NGK 9729 Spark Plug Wire Set

NGK Spark Plug Wire Set
⚙️ 22 vehicles fit this part
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Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦NGK Spark Plug Wire Set
🚗Fitment: Ford, Mercury, and Mazda, Escort, Tracer, 323, and Protege
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Reliable Ignition Performance for Ford, Mazda, and Mercury Vehicles

The NGK Spark Plug Wire Set 9729 is designed specifically for select Ford, Mazda, and Mercury models, including the Ford Escort, Mazda 323, Mercury Tracer, and Mazda Protege. Engineered to deliver consistent ignition performance, this spark plug wire set ensures efficient engine operation and reliable starts.

Key Features of the NGK Spark Plug Wire Set 9729

  • Blue silicone insulation for enhanced heat resistance and durability
  • Magnetic core with variable pitch to reduce electrical interference
  • Noise suppression technology to minimize ignition noise
  • Specific fitment for Ford Escort, Mazda 323, Mercury Tracer, and Mazda Protege
  • 7.00 mm insulation outside diameter for optimal protection

About the NGK Spark Plug Wire Set Product Line

The NGK Spark Plug Wire Set line focuses on delivering precise ignition wire solutions tailored to specific vehicle applications. This product line combines high-quality silicone insulation with advanced core materials to provide reliable electrical conductivity and noise suppression. The 9729 part number is part of this line, offering a direct fit and engineered performance for compatible Ford, Mazda, and Mercury models.

Detailed Product Description

This NGK Spark Plug Wire Set 9729 features blue silicone insulation that withstands high temperatures and resists cracking or deterioration over time. The magnetic core with variable pitch design helps suppress electromagnetic interference, ensuring stable ignition signals and reducing radio frequency noise. Designed for specific fitment, this wire set matches the exact specifications required by Ford Escort, Mazda 323, Mercury Tracer, and Mazda Protege vehicles, facilitating straightforward installation and reliable operation.

Common Issues Addressed by This Spark Plug Wire Set

  • Misfires caused by worn or damaged ignition wires
  • Engine performance loss due to electrical interference
  • Starting difficulties related to poor spark delivery
  • Ignition noise affecting radio and electronic systems
  • Degradation of insulation leading to shorts or arcing

Installation Notes and Tips

  • Ensure the engine is cool before beginning installation
  • Replace wires one at a time to maintain correct firing order
  • Check connectors for corrosion or damage before installation
  • Route wires away from hot engine components and moving parts
  • Verify secure connections at both spark plug and distributor ends

Quality Assurance and Warranty

NGK maintains strict quality control standards for the Spark Plug Wire Set 9729, ensuring durability and consistent performance. While specific warranty details may vary, NGK products typically come with manufacturer-backed coverage against defects in materials and workmanship. Refer to NGK documentation for exact warranty terms.

BrandNGK
Part Number9729
PositionNGK Spark Plug Wire Set
Core MaterialMag (Var. Pitch)
Insulation ColorBlue
Insulation MaterialSilicone
Insulation Outside Diameter7.00
Noise Suppression TypeYes
Part NumberRC-ZX18
Stock Number9729
Universal Or Specific FitSpecific

This part fits 22 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1996FordEscort1.8LL4N/ANGK Spark Plug Wire Set
1996MercuryTracer1.8LL4N/ANGK Spark Plug Wire Set
1995FordEscort1.8LL4N/ANGK Spark Plug Wire Set
1995Mazda3231.8LL4N/ADOHC; NGK Spark Plug Wire Set
1995MercuryTracer1.8LL4N/ANGK Spark Plug Wire Set
1994FordEscort1.8LL4N/ANGK Spark Plug Wire Set
1994Mazda3231.8LL4N/ADOHC; NGK Spark Plug Wire Set
1994MazdaProtege1.8LL4N/ANGK Spark Plug Wire Set
1994MercuryTracer1.8LL4N/ANGK Spark Plug Wire Set
1993FordEscort1.8LL4N/ANGK Spark Plug Wire Set
1993Mazda3231.8LL4N/ADOHC; NGK Spark Plug Wire Set
1993MazdaProtege1.8LL4N/ANGK Spark Plug Wire Set
1993MercuryTracer1.8LL4N/ANGK Spark Plug Wire Set
1992FordEscort1.8LL4N/ANGK Spark Plug Wire Set
1992MazdaProtege1.8LL4N/ANGK Spark Plug Wire Set
1992MercuryTracer1.8LL4N/ANGK Spark Plug Wire Set
1991FordEscort1.8LL4N/ANGK Spark Plug Wire Set
1991Mazda3231.8LL4N/ANGK Spark Plug Wire Set
1991MazdaProtege1.8LL4N/ANGK Spark Plug Wire Set
1991MercuryTracer1.8LL4N/ANGK Spark Plug Wire Set
1990Mazda3231.8LL4N/ANGK Spark Plug Wire Set
1990MazdaProtege1.8LL4N/ANGK Spark Plug Wire Set

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

This part directly replaces or is cross-referenced with the following part numbers:

09250127447175-5956175-596518401318401435-425235-425335-PF7738755129671-42217004377486865399250965399729CH7447

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.