1. Introduction
This manual provides detailed instructions for the installation, operation, and maintenance of your SEIZMIK UTV Soft Upper Half Door Kit. Please read this manual thoroughly before installation and use to ensure proper function and longevity of the product. This kit is designed to integrate with existing Can-Am OEM hard half doors.
2. Product Features
- Quick Installation: Doors attach rapidly using Velcro straps and snaps.
- Roll-Away Design: Easily roll and secure doors when not in use for open-air driving.
- Enhanced Visibility: Windows are constructed from durable 30 mil tinted vinyl, offering a clear and unobstructed view.
- Adjustable Ventilation: Windows feature zippers for easy opening and closing, allowing for customizable airflow.
- Durable Construction: Made from high-quality 11-ounce marine-grade polyester, resistant to water, punctures, tears, abrasions, and fading.
3. Compatibility
This SEIZMIK Soft Upper Half Door Kit (Model 51-20987) is specifically designed for and compatible with:
- Can-Am Defender 2-seat models (Years: 2016, 2017, 2018, 2019, 2020, 2021, 2022, 2023).
- Designed to work in conjunction with the Can-Am OEM hard half doors.
4. What's in the Box
The SEIZMIK UTV Soft Upper Half Door Kit includes:
- Soft Upper Half Door Panels (Left and Right)
- Self-adhesive Velcro strips
- Installation Instructions
- Care Instructions
5. Setup and Installation
Follow these general steps for installing your Soft Upper Half Door Kit. Refer to the included detailed installation instructions for specific guidance.
- Prepare the Vehicle: Ensure your Can-Am Defender is clean and free of debris where the doors will attach.
- Attach Velcro Strips: Apply the provided self-adhesive Velcro strips to the designated areas on your UTV's roll cage and OEM hard half doors, as indicated in the detailed instructions. Ensure surfaces are dry and clean for optimal adhesion.
- Position Door Panels: Align the soft upper half door panels with the Velcro strips and the existing hard half doors.
- Secure Doors: Fasten the door panels using the integrated Velcro straps and snaps. Ensure a snug fit to prevent flapping during operation.
- Check Fitment: Verify that the doors open and close smoothly, and that the windows zip and unzip without obstruction.

Image: The Seizmik Soft Upper Half Door Kit installed on a UTV, highlighting the zippered window and overall fit.

Image: A close-up view of the Seizmik Soft Upper Door Kit installed on a UTV, emphasizing its design for protection against elements.
6. Operating Instructions
- Opening/Closing Doors: The doors are secured by Velcro and snaps. To open, unfasten these attachments. To close, align the door and re-fasten all points.
- Window Operation: Use the integrated zippers to open or close the vinyl windows for ventilation or protection from the elements.
- Rolling Up Doors: For maximum airflow or an open-cab experience, the soft upper half doors can be rolled up and secured. Unfasten all attachments, carefully roll the door panel upwards, and use the integrated straps or buckles to secure it in the rolled position.

Image: This image displays the Seizmik Soft Upper Door Kit on a Honda Talon, illustrating the zippered windows and the marine-grade polyester canvas construction.
7. Maintenance
Proper maintenance will extend the life of your SEIZMIK Soft Upper Half Door Kit.
- Cleaning: Clean the polyester fabric and vinyl windows with mild soap and water. Avoid harsh chemicals or abrasive cleaners, which can damage the material. Rinse thoroughly and allow to air dry completely before storage or prolonged use.
- Storage: When not in use for extended periods, ensure the doors are clean and dry. Store them rolled or folded neatly in a cool, dry place away from direct sunlight to prevent material degradation.
- Zipper Care: Periodically clean zippers and apply a silicone-based lubricant to ensure smooth operation.
8. Troubleshooting
If you encounter issues with your Soft Upper Half Door Kit, consider the following:
- Loose Fit: Ensure all Velcro straps and snaps are securely fastened. Re-adjust if necessary.
- Difficulty Zipping: Check for debris in the zipper teeth. Clean and apply lubricant if needed.
- Water Leaks: Verify that all attachment points are properly sealed and the doors are fully closed. Small amounts of water may enter during heavy rain or pressure washing.
For persistent issues, please contact SEIZMIK customer support.
9. Specifications
| Attribute | Detail |
|---|---|
| Brand | SEIZMIK |
| Model Number | 51-20987 |
| Item Weight | 7 pounds |
| Product Dimensions | 8 x 8 x 40 inches |
| Material | 11-ounce Marine Grade Polyester, 30 mil Tinted Vinyl |
| Compatibility | Can-Am Defender 2-seat models (2016-2023) |
10. Warranty and Support
This SEIZMIK UTV Soft Upper Half Door Kit is covered by a One Year Manufacturer's Warranty. This warranty covers defects in materials and workmanship under normal use.
For warranty claims, technical support, or further assistance, please contact SEIZMIK customer service through their official website or authorized dealers. Please have your product model number (51-20987) and proof of purchase available.

Image: An image showing a UTV equipped with Seizmik accessories, driving through a wooded trail, demonstrating the product's use in outdoor environments.