Spark Plug Wires

Harley Spark Plug Wires — High-Quality Wire Kits for Reliable Ignition

Keep Your Spark Strong — Durable Spark Plug Wires for Harley Motorcycles

Welcome to Get Lowered — your trusted source for premium Harley parts and performance upgrades. Our Harley spark plug wires collection features carefully selected wire sets and ignition-wire kits designed to deliver consistent spark transmission, strong ignition, and long-term reliability. Whether you’re refreshing a stock ignition system, maintaining an older Harley, or upgrading for a custom or performance-tuned build — the right spark plug wires can make a difference.

Why Quality Spark Plug Wires Matter

Spark plug wires play a critical role in your motorcycle’s ignition system. They transmit high-voltage electricity from the ignition coil to the spark plugs — enabling the spark that ignites the air-fuel mixture inside each cylinder. If the wires are worn, damaged, or of poor quality, they can leak voltage, reduce spark energy, or degrade over time, leading to misfires, poor throttle response, rough idle, or unreliable starts.

Good spark plug wires also help suppress electromagnetic interference (EMI) and radio-frequency interference (RFI), which can interfere with ignition performance or on-bike electronics.

Replacing aging or worn wires — with proper, high-quality wires — ensures your ignition system stays tight, efficient, and dependable for daily rides or heavy use.

What You’ll Find in Our Spark Plug Wires Collection

Our “Harley Spark Plug Wires” category includes:

• OEM-style replacement wire sets — suited for restoring stock ignition reliability.

• Aftermarket performance wires — thicker insulation, better shielding, and improved durability for long-term use or custom applications.

• Wire kits compatible with many Harley models and engine types — ensuring proper length, connector fit, and plug-to-coil routing.

• Heavy-duty, abrasion-resistant, and heat-resistant wire housings — ideal for high-stress or long-distance riding conditions.

• Complete sets with boots and connectors ready for plug-in installation — ideal for DIY maintenance or shop builds.

When to Replace or Upgrade Spark Plug Wires

You should consider replacing or upgrading your spark plug wires if you notice:

• Engine misfires, rough idle, or poor throttle response — especially under load.

• Difficulty starting, weak spark, or inconsistent ignition.

• Old or visibly worn wires: cracked insulation, brittleness, frayed ends, or worn boots.

• Upgrading ignition coils, switching to aftermarket ignition components, or building a custom/tuned engine — which may demand higher-quality wires with improved electrical performance.

• Riding in harsh conditions — frequent heat cycles, vibration, moisture, or long-distance touring — where stock wires may degrade faster.

Ready to Refresh Your Ignition? Browse Our Harley Spark Plug Wires Collection Now

Don’t let worn or low-quality wires drag down your ignition performance. Explore our selection of Harley spark plug wires today — find the right fit for your bike, restore reliable spark delivery, and ride with confidence and consistency.