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Polaris RZR 4 Cab Enclosures
The back two seats are where a RZR 4 earns its keep, and where the weather finds you first. Put two kids in row two on a 28-degree Saturday, run 40 mph with the rear cage open, and the ride ends early because nobody back there can feel their hands. An enclosure closes that gap without changing anything under the machine. A four-seater means four door openings instead of two, which is why Seizmik includes the rear window and top in its XP 4 kit, and why Dirt Warrior's Vault ships as four side panels. We have served over a million UTV customers since 2010, and four-seat owners always ask the same thing first: what does the back half get?
Year and cage generation decide what fits, and the badge on the side panel will not tell you on its own. The XP 4 1000 built from 2014 through 2023 carries the widest selection here. SideXSide covers that run plus the RZR 4 900 from 2015 to 2018, the S4 1000 for 2019 and 2020, and the XP 4 Turbo from 2016 through 2021, though not the Turbo S. The 2024 and newer machines moved to a different cage, and that is the only generation Dirt Warrior's Vault fits. Kemimoto is the outlier, framed so the upper swings with your factory door. Settle one thing before ordering: if you already run a hard front windshield, tell us, because it changes which kit makes sense. Fitment is what we do. Text (920) 644-5280, call (920) 543-5376, or use the live chat, and we will confirm your year and cage before you spend a dollar.
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BUYER'S GUIDE: Polaris RZR 4 Cab Enclosures for the XP 4 1000, XP 4 Turbo and RZR 4 900
Five build styles cover this category. They separate on how they attach, how well they seal, and how fast you can drive with them on.
| Type | Material and specs | Best for | What you give up |
|---|---|---|---|
| Soft upper doors | 11 ounce marine-grade polyester canvas, 30 mil Aqua-View vinyl rated to a -20 degree cold crack, double-pull YKK zippers (Seizmik) | Closing in all four seats for cold and dust, then folding it into a tote by May | Seizmik advises staying under 45 mph with soft goods installed |
| Framed soft uppers | Oxford fabric on a rust-proof steel tube frame, door-synced so the upper swings with the factory door (Kemimoto) | Riders in and out constantly who do not want to work a zipper each time | The shortest coverage here at six months, and added weight on every door |
| Ballistic upper door enclosures | Heavy-duty ballistic fabric wrapping the cage and factory door top, three attachment choices, made in the USA (SideXSide) | Keeping the hard roof, windshield and rear window already on the machine | Velcro and adhesive snaps are not guaranteed, and trailering voids the warranty |
| Hard polycarbonate uppers | Quarter-inch polycarbonate rated 250 times stronger than glass, powder-coated carbon steel frame, bulb seals, BreezeRite vents (SuperATV) | Riding all four seasons with a rattle-free seal and a latch rated for trailering | Roughly 25 times the price of the cheapest framed soft door here |
| Glass panel systems | Safety glass in an aluminum frame, four side upper panels with latch-and-release handles (Dirt Warrior Vault) | A 2024 or newer RZR 4 that stays out through the whole winter | Minimal drilling, 2024 and newer only, plus $279.99 shared shipping |
Frames, Fabric and Seals: Reading a RZR 4 Enclosure Listing
Three lines on a listing tell you what you are buying. Start with the fabric spec, because a stated weight means somebody measured it. Seizmik's 11 ounce marine-grade polyester with 30 mil Aqua-View vinyl, rated to a -20 degree cold crack, sits in a different class than unspecified sheet material. Then the closures, where double-pull YKK marine zippers survive a season of frozen fingers. Then the mounting, which is where we see the most regret. SideXSide sells the same enclosure three ways, Velcro, self-adhesive snaps, or pop-rivet snaps, and states plainly that the first two are not guaranteed and that adhesive laid over your decals can lift them. Riders who pick no-drill to protect their graphics sometimes end up with both problems. Rigid kits sidestep it, with SuperATV running bulb seals against powder-coated carbon steel. A sealed cab traps cold as well as heat, so most four-seat owners add a RZR 4 cab heater the same season, and the windshield already on the machine decides which upper kit is right. If your factory lowers are worn, RZR 4 doors are the foundation the uppers seal against.
What a RZR 4 Cab Enclosure Costs, Entry to Premium
The entry point is Kemimoto's framed soft uppers at $67.99, which buys a metal-framed fabric upper and nothing more. Most four-seat buyers land between $596 and $650. Seizmik's XP 4 kit at $596.59 covers the doors plus the rear window and top, and SideXSide's ballistic enclosure at $599.99 to $649.99 covers all four openings in USA-made fabric. The premium end runs $1,763.95 to $1,964.80 for SuperATV's polycarbonate and $2,450 for Dirt Warrior's Vault, where the money buys rigid panels and hardware that behaves like factory equipment. Financing through Affirm is available at checkout on the bigger systems. The most common warranty is between 3-6 months, but Everything Polaris RZR does offer extended 1- and 2-year warranties on all products if that is something you are interested in — you can add the extended warranty right at checkout. Underneath that, Seizmik, SideXSide and SuperATV each back their kits one year, while Kemimoto covers six months against defects. Everything here carries our risk-free 90-day return policy, and you can see what RZR owners say about us first.
Top 4 Polaris RZR 4 Cab Enclosure Brands
- SideXSide Enclosures builds its RZR 4 uppers from heavy-duty ballistic fabric, custom made in the USA one machine at a time, with a storage bag and a one-year workmanship warranty. You pick the attachment style at checkout, including two no-drill options.
- 3 Star Industries cuts modular soft cab systems to a specific model pattern rather than stretching one shape across a family, in marine-grade polyester closed with YKK metal zippers, made in the USA.
- Seizmik works in 11 ounce marine-grade polyester with 30 mil Aqua-View vinyl windows rated to -20 degrees, and its XP 4 kit includes the rear window and top rather than selling them apart.
- Dirt Warrior Accessories makes the Vault, setting safety glass in an aluminum frame with latch-and-release handles, mounted to the factory roof and doors. The complete kit adds front and rear windshields and a free manual wiper.
Top 5 Polaris RZR 4 Cab Enclosure Products
- Polaris RZR 4 XP 900/1000 Cab Enclosure (upper doors only) by SideXSide Enclosures ($599.99-$649.99). Ballistic uppers that wrap the cage and the top of your factory doors, with each window unzipping from the bottom so the door still opens fully. First setup runs under an hour, then about a minute after that.
- Polaris RZR 4 XP 1000 Hard Cab Enclosure Upper Doors by SuperATV ($1,763.95-$1,964.80). Quarter-inch lightly tinted polycarbonate on powder-coated carbon steel, sealed with bulb seals and vented through adjustable BreezeRite panels. The top latch makes it the pick for owners who trailer every weekend.
- Polaris RZR XP 4 1000/ XP 4 Turbo Soft Upper Doors with Zippered Windows/Rear Window & Top by Seizmik ($596.59). Marine-grade canvas with 30 mil Aqua-View vinyl, windows zipping on two sides so you can vent without pulling a panel. The best single purchase for a family machine, because the rear window and top are in the box.
- Polaris RZR 4 XP 1000/XP Turbo Cab Enclosure The Vault 2024+ Upper Side Doors & Panels by Dirt Warrior Accessories ($2,450.00). Four safety-glass panels in aluminum frames, built for the 2024 and newer RZR 4 on its factory roof and doors. Made to order, so it ships in 7-14 business days.
- Polaris RZR 4 XP 1000 Soft Upper Doors with Metal Door Frame by Kemimoto ($67.99). Waterproof, UV-treated Oxford fabric on a rust-proof steel frame that opens with the door, no zipper needed to climb out. The budget entry, slotted wide enough to clear most side mirrors.
Polaris RZR 4 Cab Enclosure FAQs
Does a RZR 4 enclosure cover the rear doors, or only the front?
It varies, so read the listing. SideXSide's kit and Dirt Warrior's Vault both cover all four openings, and the Vault ships as four side upper panels. Seizmik's XP 4 kit adds the rear window and top. Kemimoto's framed uppers are the narrowest of the group. On a four-seater the back two openings decide whether passengers stay comfortable, so confirm the count before you order.
How fast can I ride with soft uppers installed?
Seizmik does not recommend exceeding 45 mph with soft goods installed, and that holds for fabric kits generally, because fabric drums and flexes at speed in a way rigid panels do not. Above that, the polycarbonate or glass kits are the honest answer. SideXSide also advises against trailering with its enclosure on, and doing so voids that warranty, while SuperATV's uppers carry a top latch rated for it.
Will a kit clear my mirrors, light bar or aftermarket cage?
Not always, and this is the most common fitment miss in the category. SideXSide cannot guarantee fit alongside aftermarket accessories such as mirrors, light bars or speakers, and Dirt Warrior builds the Vault around the factory OEM roof and doors. Kemimoto is friendliest here, slotted wide enough for most side mirrors. If you run a custom cage, your heights and angles have changed, so text us before ordering.
Is an aftermarket enclosure a step down from the Polaris factory option?
Polaris builds one good option. The aftermarket gives you that quality level from several makers, usually for less money, in materials the factory does not sell. SuperATV's quarter-inch polycarbonate is rated 250 times stronger than glass and 25 times stronger than acrylic, and its listing carries a downloadable install PDF so the work happens in your driveway. Dirt Warrior puts real safety glass in aluminum. The tradeoff is reading fitment carefully, because the aftermarket covers far more model years than a dealer shelf does.
