Moroso Ultra 40 High Performance Ignition Wires - Harley Milwaukee-Eight Softail 2018-Up
About Moroso
Moroso has manufactured racing components in Connecticut since 1968, supplying engine, chassis and shop products developed through motorsport.
Unlock the full potential of your Milwaukee-Eight Softail with Moroso Ultra 40 High Performance Ignition Wires. These premium wires are engineered for modern V-twin engines, delivering a stronger, more consistent spark to your plugs. Designed to handle the rigorous demands of high-performance riding, they ensure optimal ignition timing and power delivery.
Why riders pick this
- Ultra-low 40 ohms-per-foot resistance for maximum spark
- DuPont Kevlar core for extreme durability and strength
- High-temperature silicone boots withstand 600°F
- Locking stainless steel terminals prevent vibration-induced disconnects
- Fully compatible with Harley Milwaukee-Eight ION sense coils
- Optimized for 2018-Up Harley Softail models
When you're chasing every last bit of power from your Milwaukee-Eight, don't overlook your ignition system. Moroso Ultra 40 Ignition Wires are built with advanced materials and construction to minimize resistance and maximize spark energy transfer. This translates to more efficient combustion, smoother idle, and improved throttle response, making a noticeable difference in your bike's overall performance.
Unleash Your Engine's Potential
- 8.65mm diameter with ultra-low 40 ohms-per-foot resistance
- DuPont Kevlar core provides exceptional strength and durability
- Nickel copper alloy conductors for superior spark energy transfer
- High-temperature silicone boots rated to 600°F for extreme conditions
- Locking stainless steel plug terminals prevent disconnections from vibration
- Fully compatible with Harley's ION sense ignition coils
Built for the Milwaukee-Eight
Moroso Ultra 40 ignition wires are specifically designed for 2018-Up Harley-Davidson Softail models equipped with Milwaukee-Eight engines and ION sense ignition systems. Their robust construction and low resistance make them ideal for riders who demand peak performance and reliability. Experience a crisper, more powerful ignition with an upgrade that truly performs.
Specifications
- Brand: Moroso
- Manufacturer Part #: 28644
- UPC: 84663286445
- Wire Diameter: 8.65mm
- Resistance: 40 ohms per foot
- Set Quantity: 40 wires
- Length: 14 in
- Weight: 1 lbs
Common questions
Will these ignition wires fit my 2018+ Softail with factory ignition coils?
Yes, these Moroso Ultra 40 ignition wires are 100% compatible with factory Harley-Davidson ION sense ignition coils found on 2018 and newer Milwaukee-Eight Softail models.
What is the benefit of lower resistance ignition wires?
Lower resistance wires, like the Moroso Ultra 40's 40 ohms-per-foot, allow more electrical energy to reach the spark plugs. This results in a stronger, more consistent spark, which can improve combustion efficiency, throttle response, and overall engine performance.
Are these wires resistant to heat and vibration?
Absolutely. These wires feature high-temperature silicone boots rated to 600°F and locking stainless steel plug terminals to ensure they stay connected and perform reliably even under the extreme heat and vibration conditions common on V-twin engines.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Moroso |
| TYPE | Electrical |
| SKU | 82-8335 |
| WEIGHT | 1.0 lb |
