JLG 4394RT Rough Terrain Diesel Scissor Lift
Forty-three feet. Diesel. Four-wheel drive. This is the outdoor job site machine.
43-ft rough terrain diesel scissor lift. 1,250 lb capacity, 4WD pneumatic tires, 45% grade, Deutz diesel. Built for outdoor construction and uneven terrain.
- 43 ft platform height (49 ft working height)
- 1,250 lb platform rated capacity
- 4WD all-terrain pneumatic tires — gravel, mud, uneven ground
- 45% maximum gradeability
- Deutz diesel engine — reliable start at -20°F
- Oscillating front axle — 4-wheel ground contact on rough terrain
- 36-inch fold-out platform extension
- Bi-fuel (diesel/LPG) option available
✓ In Stock — Ships in 5-10 business days
| Drive | 4WD, all-terrain pneumatic tires |
| Model | 4394RT |
| Engine | Deutz diesel, 49 HP |
| Manufacturer | JLG Industries |
| Overall Width | 84 inches (2.13 m) |
| Platform Size | 102" × 60" (+ 36" extension) |
| Certifications | ANSI/SAIA A92.20, CE EN 280, CSA |
| Machine Weight | 19,500 lbs (8,845 kg) |
| Working Height | 49 ft (14.9 m) |
| Platform Height | 43 ft (13.1 m) |
| Max Gradeability | 45% |
| Oscillating Axle | Yes — ±8° front axle oscillation |
| Platform Capacity | 1,250 lbs (567 kg) |
Multi-angle views of the JLG 4394RT Rough Terrain Diesel Scissor Lift. Click any image to zoom.
See this class of lift in action. The video below shows installation, real-world operation, and the kind of shop this lift belongs in.
⚙️ Pothole Protection Bar
A mechanical bar extends outward from the platform's lower edge when elevated above 6 feet. If the machine approaches a floor opening, drop-off, or dock edge, the bar contacts the hazard before the wheel reaches it — automatically halting drive before a tip-over can occur. Non-defeatable by the operator.
🔒 Outrigger Interlock (RT Models)
Rough-terrain models cannot raise above a set height unless all four outriggers confirm positive ground contact. The interlock is mechanical — not software-only. A single outrigger without firm contact blocks elevation above the threshold, preventing elevation on an unstable base.
🛡️ OSHA-Compliant Platform Guarding
Full-height (43 in) guardrails with mid-rail and toe board meet OSHA 1926.502 and ANSI/SAIA A92.20 fall protection requirements. The self-closing entry gate uses a positive slam-latch that cannot be accidentally kicked open. Platform D-ring anchor for personal fall arrest (on most models).
📊 Load Management System
On-board sensors monitor platform weight continuously. Overloading locks out the lift function and displays a fault code — the machine will not raise until load is reduced to within rating. This protects the scissor mechanism from overload and prevents the stability limit from being exceeded.
How does this compare?
At 43 feet, the 4394RT is the largest class of rough-terrain scissor lift before you move to articulating or telescopic boom lifts. The scissor platform advantage holds at this height — 102 x 60 inches is a substantial work deck for multi-person crews. For roofing work with parapet access, the 36-inch fold-out extension is often the deciding feature. If your application requires positioning over obstacles or working around corners, a 40-45 foot articulating boom becomes the better choice — booms offer horizontal outreach that scissors cannot provide.