What’s Included?
The package contains:
- 8 ignition spark plug wires
Each wire is designed to match factory routing and connector locations for straightforward installation.
Key Features
7mm High Performance Ignition Wires
The 9748RR uses durable 7mm ignition cables engineered for reliable spark delivery.
Benefits include:
- Stable ignition performance
- Strong spark transfer
- Improved combustion efficiency
- Dependable engine operation
Proper conductor sizing helps maintain consistent ignition energy across all cylinders.
450 Ohms Per Foot Resistance
Each ignition wire is engineered with approximately 450 ohms per foot of resistance.
This provides an effective balance between:
- Efficient voltage transfer
- Electrical noise suppression
- Reliable ignition timing
- Stable engine performance
Maintaining proper resistance helps optimize both ignition performance and electronic system compatibility.
High Dielectric Insulation
The wire insulation utilizes high-dielectric materials designed to prevent voltage leakage under demanding engine conditions.
Advantages include:
- Improved electrical insulation
- Reduced spark loss
- Better heat resistance
- Long-term durability
High-quality insulation helps maintain dependable ignition performance over extended service intervals.
Corrosion-Resistant Terminals
Premium terminals are engineered for secure spark plug engagement and improved corrosion resistance.
Benefits include:
- Secure electrical connection
- Better spark plug retention
- Easier installation
- Long-term reliability
Strong terminal retention also reduces the chance of loose ignition connections caused by vibration.
Water-Tight Spark Plug Boots
OEM-style spark plug boots provide a proper seal against moisture and contaminants.
This helps protect the ignition system from:
- Water intrusion
- Dirt
- Oil contamination
- Electrical leakage
A proper seal improves long-term ignition reliability in all weather conditions.
Heat and Abrasion Resistance
The heavy-duty insulation jacket is designed to resist:
- High engine temperatures
- Oil exposure
- Abrasion
- Engine vibration
These protective layers help extend ignition wire life in demanding operating environments.
Coil Retainer Design
The integrated coil retainer helps minimize:
- Fretting
- Micro-arcing
- Terminal movement
Maintaining stable electrical contact improves ignition consistency and long-term reliability.
Why Replace Spark Plug Wires?
Ignition wires gradually deteriorate through years of normal operation.
Common symptoms include:
- Rough idle
- Engine hesitation
- Reduced engine power
- Hard starting
- Engine misfires
- Poor fuel economy
- Check Engine Light
Replacing aging ignition wires restores proper spark energy while helping maintain engine efficiency.
Replace Wires When Replacing Spark Plugs
Most manufacturers recommend inspecting or replacing ignition wires during scheduled spark plug maintenance.
Replacing both together helps:
- Improve combustion efficiency
- Restore reliable ignition
- Reduce future maintenance
- Improve engine responsiveness
- Maintain consistent spark across all cylinders
For higher-mileage GM V8 engines, a complete ignition service often delivers noticeable improvements.
Installation Tips
For best results:
- Replace one ignition wire at a time.
- Match each new wire to the original.
- Fully seat each spark plug boot.
- Apply dielectric grease if recommended.
- Route wires through factory retainers.
- Verify wire routing before starting the engine.
Correct installation maximizes both performance and service life.
Service Interval
AC PERFORMANCE recommends inspecting or replacing the wire set approximately every:
- 2 years
- 50,000 km (31,000 miles)
Actual replacement intervals may vary depending on driving conditions and vehicle maintenance schedules.
Final Verdict
The AC PERFORMANCE 9748RR High Performance Spark Plug Wire Set offers an excellent balance of affordability, OEM-style fitment, and dependable ignition performance for compatible GM V8 engines. Its 7mm construction, 450-ohm-per-foot conductor, high-dielectric insulation, corrosion-resistant terminals, watertight boots, and heavy-duty heat protection help restore reliable spark delivery while improving long-term durability.
For owners maintaining Chevrolet, GMC, Cadillac, Buick, Pontiac, Hummer, or Saab V8 vehicles, this ignition wire set is a practical replacement that supports smoother engine operation and dependable everyday performance.
There are no reviews yet.