Cat Skid Steer Door and Window Protection
Cat skid steer door replacement and Cat skid steer window replacement shouldn’t mean settling for the same unrated polycarbonate that came on the machine. Heavy Equipment Armor builds ballistic-rated doors and steel guarding for the Caterpillar D3 lineup using your factory mounting points. No cutting, no drilling, no reworking the cab.
What’s In the Package
Four systems make up the lineup, and most owners run more than one together:
System | Protection Type | Coverage | Install Time |
| Defender Ballistic Door | UL752 Level 1 ballistic | Front door | ~1 hour |
| Skeleton Front Door Guard | Steel screen | Front door overlay | ~1 hour |
| Top Cab Guard | Steel | Cab roof | ~2 hours |
| Enhanced Guarding | Steel | Cab + motor area | ~2 hours |
That’s the full range of Cat skid steer cab accessories built to work together rather than compete for space.
Ballistic-Rated. Not “Lexan.”
Many sellers market a skid steer Lexan door that’s really just impact-rated polycarbonate, drilled to fit hinges and handles. That drilling is what creates micro-fractures over time.
Our polycarbonate windows are different. They’re genuinely ballistic-rated, not just impact-rated, and they’re bonded to a steel frame instead of drilled, so they flex less and hold up longer:
| Spec | Detail |
| Rating | UL752 Level 1 |
| Tested against | 124 grain, 9mm FMJ, 15 ft |
| Temperature range | -26°F to 120°F |
| Construction | Bonded to steel frame, not drilled or milled |
That rating holds up under mulchers, log processors, hammers, and augers, real forestry work, not just impact from flying gravel.
Want steel instead of glass? The Skeleton Front Door Guard mounts straight to your factory hardware. Either way, you get real Cat protective doors, not a generic fit.
Built to Fit
The D3 lineup covers 226D3 through 299D3 XE Land Management, across compact track loaders and multi-terrain loaders. Short guarding covers the smaller frames; long guarding covers 262D3 through 299D3 XE.
Not sure this is your model? See our full lineup of Caterpillar skid steer guarding.
Looking for a Cat D series skid steer door? Our current guarding lineup covers D and D3 model Caterpillar skid steers.
Need a Door or Window Replacement?
Don’t replace a cracked or fogged factory door with the same unrated polycarbonate it came with. A Cat skid steer door glass replacement is the moment to upgrade, and it’s the same skid steer door replacement process whether you’re swapping the whole door or just the glass.
We carry Cat skid steer door parts individually, including the Cat skid steer door handle and full Cat skid steer door assembly, so you’re not stuck buying a whole unit for one broken piece.
Building out a full cab enclosure for a Caterpillar skid steer? We’ll help you land on the best Cat skid steer cab enclosure kit for your model, same mounting, same install time as a factory door, but built to actually take a hit. These kits are built for machines with an existing enclosed cab already in place.
Installation
Bolt-on kits install in about an hour. Enhanced Guarding takes roughly two. Custom builds require bringing the machine to our Idaho facility.
You Already Know What Your Machine Deals With. Now Guard It.
