Karlyn
Karlyn-STI

Karlyn 729 Spark Plug Wire Set

Brand Karlyn 729
Boot Type Oem
Color Black
Engine Oem
Product line Karlyn-STI
Fits Mazda · 6 vehicles

OEM boot type. Factory-style connection points for ignition wire service.

Black finish. Clean appearance that matches a factory-style engine bay.

Karlyn-STI line. Ignition and related components from the Karlyn product family.

$24.68Free 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 $24.68
Free shipping to the continental U.S.
Free returns within 60 days if it doesn't fit when fitment is verified.

Overview

The Karlyn-STI 729 spark plug wire set is built for ignition service on compatible Mazda Protege applications. It uses OEM-style boot construction and a black finish for a clean, factory-type appearance.

Fits 1999-2001 Mazda Protege, N/A. This part number is 729.

Key Features

  • OEM boot type for a factory-style wire connection.
  • Black wire set for a clean engine-bay appearance.
  • Engine-specific construction for ignition service applications.
  • Karlyn-STI product line for ignition and related components.

Detailed Description

Karlyn 729 is a spark plug wire set intended for Mazda Protege ignition maintenance across 1999-2001 model years. The OEM boot type supports a direct-style fit at the connection points, while the black finish keeps the assembly visually consistent with factory-style engine bay components. Karlyn-STI 729 is a practical replacement choice when servicing ignition wires on the Mazda Protege.

This part cross-references Monroe Shocks & Struts (e.g., 172286, 182286) for the same application.

Common Uses

  • Replacing worn ignition wires that can cause misfire symptoms.
  • Restoring stable spark delivery in the ignition system.
  • Addressing cracked, brittle, or heat-aged wire insulation.
  • Servicing a Mazda Protege ignition tune-up with the correct wire set.

Installation Notes

Verify wire routing and cylinder connection order before removal. Match the existing layout carefully during installation to avoid cross-firing. Confirm the application notes for the listed Mazda Protege fitment, including the note that two leads are required and that coil part number 5100 is referenced for a complete tune-up.

Quality Assurance

Karlyn-STI identifies this as an OEM-style ignition component for the listed application. Part number 729 should be matched to the vehicle fitment details before installation.

This part fits 6 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersNotes
2001MazdaProtegeLX1.6LL4Has 2 Leads; Purchase 2 Coils PN[5100] For A Complete Tune-Up; Karlyn-STI
2001MazdaProtegeDX1.6LL4Has 2 Leads; Purchase 2 Coils PN[5100] For A Complete Tune-Up; Karlyn-STI
2000MazdaProtegeLX1.6LL4Has 2 Leads; Purchase 2 Coils PN[5100] For A Complete Tune-Up; Karlyn-STI
2000MazdaProtegeDX1.6LL4Has 2 Leads; Purchase 2 Coils PN[5100] For A Complete Tune-Up; Karlyn-STI
1999MazdaProtegeLX1.6LL4Has 2 Leads; Purchase 2 Coils PN[5100] For A Complete Tune-Up; Karlyn-STI
1999MazdaProtegeDX1.6LL4Has 2 Leads; Purchase 2 Coils PN[5100] For A Complete Tune-Up; Karlyn-STI