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Description
The Specialty Power Windows (SPW) Universal One Window Power Window Kit (Power Wonder-Lift) is a cable-driven single-window conversion kit designed to replace a manual crank handle and mechanical regulator in specialized automotive applications. Engineered with a compact vertical clearance requirement of just 8-1/2 inches, this system is tailored for single-door replacements, rear tailgate glass conversions, custom divider partitions, or step-by-step custom interior builds using SPW's self-adjusting floating coined and slotted tube architecture.
System Architecture & Engineering Highlights
Self-Adjusting Floating Tube Architecture: Utilizes SPW's patented floating coined and slotted metal guide tube design. As the window travels, the drive assembly dynamically self-aligns to absorb irregularities in door curvature, glass angle, and track channels, eliminating binding and excessive motor strain.
Low-Clearance Cavity Profile: Requires only 8-1/2" of clearance between the beltline (window sill) and the bottom of the door or tailgate cavity, making it well-suited for shallow doors, chopped tops, and tight custom fabrications.
Extended Vertical Travel: Delivers up to 22 inches of vertical travel, accommodating standard side windows, tall commercial/truck glass, and long-travel rear tailgate drops.
OEM-Style High-Torque Motor: Driven by a modern 12V high-torque electric motor built to reliably lift and lower heavy laminated or tempered safety glass.
Complete Single-Window Electrical Package: Supplied with a pre-wired harness featuring quick-disconnect motor plugs, a GM-style chrome switch, and a flexible braided stainless steel conduit to protect power wiring across the door or tailgate hinge gap.
Technical Specification Matrix
Feature / Metric
Technical Specification Detail
Manufacturer
Specialty Power Windows (SPW)
System Style
Universal Cable-Driven Single-Window Power Wonder-Lift Kit
Clearance Requirement
Minimum 8-1/2" between bottom of glass (down position) and cavity bottom
Maximum Glass Travel
Up to 22 Inches of Vertical Travel
Motor Style
(1) OEM-Style High-Torque 12V Electric Motor
Guide Tube Construction
Coined and Slotted Floating Steel Metal Tube (Self-Aligning)
Switch Included
(1) GM-Style Chrome Single Window Switch with Bezel
Jamb / Hinge Protection
(1) Flexible Braided Stainless Steel Wire Conduit Included
Vehicle Application
Universal Fitment (Driver/Passenger Door, Tailgate, or Partition)
Hardware & Documentation: Mounting Hardware Kit, Written Installation Guide, and Instructional Video
Installation & System Notes
Glass Bedding & Alignment: Clean the lower edge of the glass thoroughly before securing it into the supplied lower glass channel using auto glass setting tape or high-strength urethane adhesive. Confirm the glass sits level in the channel before curing.
Stainless Conduit Installation: When running wiring across a swinging hinge (door) or pivoting joint (tailgate), stagger the drill holes between the jamb surfaces to allow the flexible conduit to flex into a gentle "S-curve" without pinching internal wiring.
Run Channel Preparation: Verify that side run channels (felt or rubber tracks) are clean, properly aligned, and lubricated with dry silicone spray to minimize mechanical friction.
Pre-Upholstery Function Test: Test-cycle the window travel using a 12V battery source to verify upper and lower stops and check internal clearance prior to final upholstery and trim panel reinstallation.
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Refund Policy
We offer a 30-day return policy, which means you have 30 days from the date you receive your item to request a return.
Eligibility for Returns
To be eligible for a return, your item must be:
In the same condition as received
Unworn or unused
With original tags attached
In its original packaging
You must also provide a receipt or proof of purchase.
How to Start a Return
To initiate a return, please contact us at jonathon@hotrodhardware.com. Once your return request is approved, you will be provided with the return address and, if applicable, an RMA (Return Merchandise Authorization) number.
Important: Items sent back without prior authorization will not be accepted.
If you have any questions regarding your return, feel free to contact us at the email above.
Damages and Issues
Please inspect your order upon delivery. If your item is defective, damaged, or if you received the wrong item, contact us immediately so we can evaluate the issue and resolve it promptly.
Exceptions / Non-Returnable Items
The following items are not eligible for return:
Custom or personalized products (including special orders)
Hazardous materials, flammable liquids, or gases
Sale items
Gift cards
If you are unsure whether your item qualifies, please contact us before initiating a return.
Exchanges
The fastest way to receive a replacement item is to return your original item (once approved) and place a new order separately.
Free Shipping Orders
Orders that qualified for free shipping are subject to deduction of the original outbound shipping cost if the item is returned.
Refunds
Once your return is received and inspected, we will notify you regarding the approval status of your refund.
If approved:
Refunds will be issued to your original payment method
Any applicable restocking fees will be deducted
Original shipping charges (if applicable) will be deducted
Return shipping costs (if arranged by Hot Rod Hardware) will be deducted
Please note:
Payment processing fees (including PayPal, Amazon Pay, or other merchant fees) are non-refundable
It may take additional time for your bank or credit card provider to process and post the refund
