Why Mustang Enthusiasts Choose Nu-Relics Electronic Window Kits for 1965–1973 Mustangs and Cougars
Classic Mustang restorations are about balancing originality with comfort and reliability. One of the most impactful upgrades you can make to your 1965–1973 Ford Mustang is converting the old manual crank windows to modern power window operation — and the kits from Nu-Relics are among the most respected solutions in the restoration community. In this deep dive, we unpack the technical benefits, performance advantages, and real-world reasons customers choose these electronic window kits.
Whether you’re building a street cruiser, show car, or daily driver, this article explains exactly why these kits are worth installing — from superior USA made construction quality to ease of use and installation.
What Are Nu-Relics Electronic Window Kits?
Stang-Aholics is proud to offer the Nu-Relics complete power window conversion kits that replace your Mustang’s manual window regulators with new power-assisted regulators, motors, wiring, and switches designed to bolt into the factory mounting points of 1965–1973 Mustangs. These kits support one, two, or all four windows depending on your configuration and model year.
Examples include:
These kits replace manual regulators with new heavy-duty assemblies and motors, offering dramatic improvements in usability and reliability.
Built for Classic Cars — But Modern in Performance
Why do Mustang owners prefer Nu-Relics electronic window kits over stock or other aftermarket options? The answer lies in engineered design and quality components.
Model-Specific Precision Fit
Nu-Relics kits are engineered to bolt into the original factory holes — no drilling or modifying your doors. They work seamlessly with the curved glass and stock channels of early Mustangs.
What Does It Mean for your Classic:
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You preserve your door’s structural integrity
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The window movement is smooth and aligned
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Long-term reliability is improved
Heavy-Duty Window Regulators & Bearings
The regulators are made from 1018 cold-roll steel, a strong, resilient alloy that resists bending and warping over time. Bronze Oilite® thrust bearings at pivot points mean better lubrication and less wear.
These rugged materials reduce:
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Worn linkage and sloppy window movement
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Metal fatigue from constant use
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Maintenance frequency
High-Quality Motors for Smooth, Quiet Window Operation
Each kit includes new ACI power window motors — known for strong torque and long service life. These motors operate quietly and consistently, unlike many stock motors from other vehicles that can drag or hum.
Better motors mean:
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Faster window travel
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Less strain on electrical systems
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Better performance in hot/cold environments
Fully Integrated Wiring & Switch Options
Nu-Relics kits include a completely labeled wiring harness and switches that you can mount in the door or console. The harness is fused so the windows can operate with the engine off, giving daily-driver convenience.
Advantages include:
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Easier installation (labeled wiring = fewer mistakes)
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Flexible switch placement
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Plug-and-play usability
Installation Benefits — DIY and Professional Friendly
Modern restorers love these kits for how straightforward they are to install:
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Bolt-in compatibility with stock door hardware
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Labeled wiring speeds up electrical connections
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Switches included, so no hunting for extra parts
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Compatible with curved glass and original channels
Professional builders appreciate that Nu-Relics kits save labor hours, while DIY enthusiasts enjoy the sense of accomplishment from a clean, modern upgrade.
Real-World Advantages for Mustang Owners
Let’s look at the real benefits owners experience after installation:
1. Instant Convenience
No more manually cranking windows up and down — especially useful in rain or heavy traffic.
2. Increased Reliability
Modern motors and bearings beat decades-old mechanical systems that sag, bind, or fail.
3. Improved Resale Value
Classic car buyers appreciate modern conveniences that don’t compromise original aesthetics.
4. Better Everyday Use
Whether it’s drive-throughs or quick air flow on a summer day, power windows are more practical.
Final Conclusion: Why Nu-Relics Kits Are Worth It
Installing a Nu-Relics electronic window kit on your 1965–1973 Mustang isn’t just about convenience — it’s about quality, performance, and longevity.
These Power Window kits:
✔ Bolt into original mounting points
✔ Use heavy-duty steel and bearings
✔ Include high-torque ACI motors
✔ Feature labeled wiring for easy installation
✔ Offer flexible switch options and modern usability
For any Mustang owner looking to enhance comfort without sacrificing classic style, Nu-Relics power window kits are a top-tier choice.
For A Better Visual Idea of What these Kits Look Like, Take a Look at our Nu Relic Product Highlight Video Below!
You ready to Upgrade your Classic Mustang or Cougar to ELECTRIC POWER WINDOWS?
----> Shop Our Entire Line of NU-RELICS Conversion Kits On our Website!!
Frequently Asked Questions – Nu-Relics 65–73 Mustang Power Window Kits
What is a Nu-Relics power window kit for 1965–1973 Mustangs?
Nu-Relics power window kits are complete, vehicle-specific electronic window conversion systems for classic 1965–1973 Ford Mustangs. Each kit replaces the factory manual window regulators with heavy-duty steel power regulators, electric motors, wiring harnesses, and switches designed to install directly into the original door structure.
Which Mustang years and body styles are supported?
Nu-Relics offers power window kits for 1965–1973 Mustangs, including coupes, fastbacks, and convertibles. Kits are available for front windows only or front and rear windows, depending on the model year and body style. Always select the correct year range to ensure proper regulator geometry and fitment.
Do these power window kits require cutting or drilling?
No. Nu-Relics power window kits are engineered to bolt into the factory mounting locations using existing holes. No cutting, welding, or permanent door modifications are required, making them ideal for restorations and restomod builds.
Will these kits work with factory Mustang glass and window tracks?
Yes. The regulators are designed to work with original factory curved glass and stock window channels. Proper alignment and smooth window travel are maintained without altering the door or glass assembly.
What materials are used in the Nu-Relics window regulators?
The regulators are constructed from 1018 cold-rolled steel and use Oilite® bronze thrust bearings at all major pivot points. This design reduces friction, improves durability, and eliminates the flex and wear commonly found in original or universal regulators.
What type of motors are included?
Each kit includes new high-torque ACI electric window motors. These motors provide smooth, quiet, and consistent operation and are designed for long-term reliability in classic vehicle applications.
Are wiring harnesses and switches included in the kit?
Yes. Nu-Relics kits include a labeled wiring harness, relays, circuit protection, and window switches. Switches are commonly door-mounted but can also be installed in a center console depending on interior layout and customer preference.
Can the power windows be operated with the engine off?
Yes. The system is designed to allow window operation with the ignition off, provided the battery has sufficient charge. This adds convenience when parked, at car shows, or during daily use.
Is this a good upgrade for DIY installation?
Yes. These kits are considered DIY-friendly for installers with basic mechanical and electrical experience. The bolt-in regulators and clearly labeled wiring simplify installation. Professional installation is also recommended for customers seeking the fastest turnaround.
How do Nu-Relics power windows compare to factory manual regulators?
Factory manual regulators often suffer from worn pivots, bent arms, and binding after decades of use. Nu-Relics power window systems provide smoother operation, increased reliability, and consistent window travel using modern materials and electric motors.
Do power windows affect the value of a classic Mustang?
In most cases, power windows are viewed as a desirable comfort upgrade, especially for restomod or driver-focused builds. Because the installation does not require permanent door modifications, the upgrade is reversible and typically does not negatively impact resale value.
Are Nu-Relics power window kits a good choice for restomod builds?
Yes. These kits are a popular choice for restomod Mustangs because they add modern convenience while maintaining a factory-correct appearance. They pair well with other upgrades such as air conditioning, electric power steering, and modern audio systems.
Are rear power window kits available?
Yes. Nu-Relics offers front and rear power window kits for applicable 1967–1969 and 1971–1973 Mustang body styles. Rear regulators are specifically designed for quarter window applications and are not universal components.
Why choose Nu-Relics over universal power window kits?
Nu-Relics kits are vehicle-specific, not universal. This means better fitment, proper window alignment, smoother operation, and a cleaner installation. Universal kits often require custom brackets, drilling, and trial-and-error adjustment.
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