Description
Product Overview
The Motorcraft Ignition Wire (model WR4110) is engineered for durability and precise performance. Crafted from 100% Motorcraft metal, this wire features a 0.25 inch diameter and a painted exterior that resists corrosion and wear. Measuring 5.75 x 3.87 x 8.44 inches and weighing 1.8 pounds, it fits seamlessly into standard ignition coil assemblies. Designed to meet OEM standards, the wire supports a variety of connector types, including IDC, RCA, and other common spark plug connectors, ensuring broad compatibility across many vehicle makes and models.
Usage
This ignition wire is ideal for both professional automotive technicians and DIY enthusiasts. It excels in high‑temperature engine bays, providing consistent spark delivery for improved combustion efficiency. Whether you are restoring a classic car, performing routine maintenance, or upgrading a performance vehicle, the Motorcraft Ignition Wire delivers reliable ignition timing and reduced misfire risk. Its robust construction makes it suitable for daily drivers, race‑track applications, and heavy‑duty trucks alike.

Why Choose Us
Motorcraft is a trusted name in automotive parts, known for rigorous quality control and exacting manufacturing standards. This ignition wire benefits from Motorcraft’s extensive testing, guaranteeing a product that meets or exceeds original equipment specifications. The painted finish adds an extra layer of protection against moisture and chemicals, extending service life. With a 4.7‑star rating from 67 verified customers, you can rely on proven performance and satisfaction.
Key Features
- 100% metal construction for superior durability and conductivity
- Precise 0.25 inch wire diameter ensures perfect fit in OEM coil sockets
- Painted exterior provides corrosion resistance in harsh engine environments
- Compatible with IDC, RCA, and other common spark plug connector types
- Backed by Motorcraft’s reputation and a 4.7‑star customer rating
FAQ
What vehicles are compatible with the WR4110 ignition wire?
The WR4110 is designed to fit a wide range of GM‑based vehicles and many other makes that use standard coil lead dimensions. Check your vehicle’s service manual for exact part numbers, but it typically replaces OEM ignition wires in cars, trucks, and SUVs.
Is the painted finish purely cosmetic?
No. The painted coating serves a functional purpose, protecting the metal from rust, moisture, and engine chemicals, which helps maintain electrical integrity over time.
Can I install this wire myself?
Yes. The wire comes with standard connector ends that snap into place. Basic hand tools and a service manual are sufficient for a DIY installation.
What is the warranty on this product?
Motorcraft offers a limited warranty that covers manufacturing defects for a period of one year from the date of purchase.
How does this wire improve engine performance?
By providing a reliable, low‑resistance path for the spark, the wire ensures consistent ignition timing, which can lead to smoother idling, better fuel efficiency, and reduced emissions.





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