The Drag Specialties Challenger Iridium Spark Plug, manufacturer part number E18-6729IDS and vendor part number E18-6729IDS, is designed to deliver dependable ignition performance for compatible motorcycle applications. Its fine iridium electrode requires less voltage than a conventional spark plug, helping produce a hotter, more consistent spark for reliable starting, smooth operation, and efficient combustion.
Built for extended service, this spark plug exceeds original equipment manufacturer specifications for plug life. The distinctive black ceramic insulator with red lettering provides recognizable Drag Specialties styling, while the metal shell features a gold-colored corrosion-protected coating for added durability in demanding riding conditions. The Challenger model is a practical replacement choice for riders seeking long-lasting ignition performance and consistent fitment.
Before installation, verify that the E18-6729IDS plug matches your motorcycle’s year, make, model, engine, and manufacturer-specified application. Proper fitment and installation should follow the vehicle service manual, including the recommended gap and torque specifications.
Features:
- Electrode: Fine iridium electrode requires less voltage than a standard electrode
- Ignition performance: Produces a hotter spark for consistent combustion
- Service life: Provides extended spark plug life compared with conventional plugs
- Construction: Black ceramic insulator with red lettering
- Corrosion protection: Gold-colored coating on the metal shell helps resist corrosion
- Specifications: Exceeds OEM specifications for plug service life
- Model: Challenger
- Brand: Drag Specialties
- Manufacturer part number: E18-6729IDS
- Vendor part number: E18-6729IDS
- Fitment: Designed for compatible motorcycle applications; verify vehicle-specific fitment before installation