The JLG T350 is a trailer-towable articulating boom in JLG's Tow-Pro line. It exists for the job a truck-mounted or self-propelled boom cannot reach economically: a single lift at a site with no flatbed, no crane, and no room to store a 15,000 lb machine. You hook it to a pickup, tow it at highway speed, drop the outriggers, and work.
Specifications
| Spec | JLG T350 |
|---|---|
| Maximum platform height | 34 ft 5 in (10.49 m) |
| Horizontal outreach | 18 ft 9 in (5.72 m) |
| Platform capacity (unrestricted) | 500 lb (227 kg) |
| Swing | 410° |
| Gradeability | 20% |
| Power | 11.7 hp gasoline engine (current production); earlier units and the ET350 are 24V DC electric |
| Outriggers | Hydraulic auto-leveling |
| Standard platform features | Air and water lines to the platform, detachable platform control box, dual USB (current models) |
| Towing | Standard 2 in ball hitch, highway-rated tires and LED lighting |
Figures are from the current JLG spec sheet. Older T350 units vary slightly by serial; confirm the capacity placard on the machine.
T350 vs ET350 vs T500J
- ET350 is the same boom with a 24V battery-electric drive and an on-board charger. Choose it for indoor work, noise-restricted sites, or where fuel handling is a problem. Cycle count per charge is the trade-off.
- T500J adds a jib and reaches 50 ft platform height with roughly the same footprint on the trailer. It is heavier and needs a larger tow vehicle.
- T350 is the general-purpose pick: gas power means no charge planning, and 34 ft covers two-story exterior work, tree trimming, signage, and most light-commercial maintenance.
Setup and operating notes
The T350 works only on outriggers. Auto-leveling handles the fine adjustment, but the machine still needs firm ground inside its outrigger footprint (about 10 ft 5 in wide); on soft ground use pads. Outrigger interlocks prevent boom function until all four are set and the chassis is level, so a boom that will not lift on a freshly delivered unit is usually an outrigger or level sensor issue, not a hydraulic one.
Because the T350 is Group B under ANSI A92 (the platform can extend past the tipping line), operators need boom-lift training and a harness tied to the platform anchor. See MEWP training requirements.
Wear items and common faults
On rental-fleet T350s the recurring parts are:
- Level and tilt sensors: the outrigger auto-level and boom interlocks depend on them, and they fail from vibration and water intrusion.
- Platform control box and joystick: the detachable controller takes abuse during transport.
- Outrigger limit switches and solenoids: mud and corrosion at ground level.
- Charger (electric units) and 12V battery (gas units): a flat battery is the most common "won't start" call.
- Tires and trailer lighting: highway-speed towing wears tires faster than most owners expect; check pressure before every tow.
Flat Earth Equipment stocks aftermarket JLG parts including level sensors, joystick controllers, solenoids, switches, relays, and alarms with a 2-year warranty. Use the JLG serial number lookup to confirm the model and year from the plate, then request a quote with the part number or a description of the fault.
Frequently asked questions
How much does a JLG T350 weigh? Roughly 3,900–4,100 lb depending on options, which keeps it within the towing rating of a half-ton pickup with a standard 2 in ball.
Can the T350 drive under its own power? No. Tow-Pro booms are moved by towing only; on site they are positioned by hand or with the tow vehicle before the outriggers are set.
Is the T350 electric or gas? Current-production T350 units have an 11.7 hp gasoline engine. The ET350 is the battery-electric version, and some older T350 units were 24V DC. Check the hood and the data plate.
Does the T350 need a special license to tow? Not in most states; it is well under the 10,000 lb GVWR threshold. Check your state's trailer brake and lighting requirements.
Can I use the T350 indoors? Only the electric ET350 is suitable for enclosed spaces. Do not run the gasoline unit indoors.