JLG 450AJ Articulating Boom Lift: Specs, Price and Buying Guide
Last updated: October 2026
The JLG 450AJ is a 45 ft articulating boom lift with a jib, 25 ft of horizontal outreach and 24 ft of up-and-over clearance. Four-wheel drive and a zero tail swing turntable make it one of the most popular rough terrain articulating booms in rental and contractor fleets, so used units and parts are easy to find.
This guide covers the 450AJ’s specs and features, ratings from OHR Rents mechanics, how it compares to similar lifts, what it costs used, and what to check before you buy one.
In this guide:
JLG 450AJ Specs
| Specification | JLG 450AJ |
|---|---|
| Platform height | 45 ft (13.72 m) |
| Working height | 51 ft (15.55 m) |
| Horizontal outreach | 25 ft (7.62 m) |
| Up-and-over height | 24 ft (7.32 m) |
| Platform capacity (unrestricted) | 550 lb (249 kg) |
| Jib articulation | 144 degrees |
| Platform size | 30 in x 6 ft (0.76 x 1.83 m) |
| Tail swing | Zero |
| Turning radius (outside) | 15 ft 8 in (4.78 m) |
| Drive | 4WD |
| Drive speed | 4.3 mph (6.84 km/h) |
| Gradeability | 45% |
| Engine (diesel) | Deutz D2.9 L4 Tier 4 Final, 49 hp |
| Engine (dual fuel) | GM Vortec 3000, 82 hp |
| Stowed length | 21 ft 7 in (6.58 m) |
| Width | 7 ft 9 in (2.35 m) |
| Stowed height | 7 ft 5 in (2.27 m) |
| Machine weight | 12,650 lb (5,738 kg) |
Specs are for current JLG 450AJ models from JLG dealer spec listings. The HC3 version adds a higher restricted capacity, and older 450AJ and 450AJ Series II units may have different engines and weights, so check the serial plate and decals on any used machine.
JLG 450AJ Key Features
- Up and over reach: the articulating riser and jib reach up and over obstacles to 24 ft, then out to 25 ft of horizontal outreach.
- Jib with 144 degrees of articulation: fine-tunes platform position for close work on ceilings, facades and steel.
- Zero tail swing: the turntable stays within the chassis footprint when it rotates, so it works close to walls and traffic.
- Rough terrain drive: 4WD, 45% gradeability and rough terrain tires handle muddy and uneven job sites.
- Diesel or dual fuel: a Tier 4 Final Deutz diesel or a GM dual fuel (gas/LP) engine.
- Transportable: at about 12,650 lb and 7 ft 9 in wide, it hauls on a standard equipment trailer.
Need zero emissions for indoor work? Look at the electric JLG E450AJ.
JLG 450AJ Ratings From OHR Rents Mechanics
Mechanics at OHR Rents service 450AJs in a working rental fleet. Here is how two of them rate the machine, out of 5 stars.
| Category | Matt D. (OHR Rents mechanic) | Howie K. (OHR Rents mechanic) |
|---|---|---|
| Performance | 5/5 | 5/5 |
| Reliability | 5/5 | 5/5 |
| Serviceability | 5/5 | 5/5 |
| Overall value | Not rated | 5/5 |
Average rating: 5.0 out of 5 across 7 category ratings.
JLG 450AJ vs. Similar Articulating Boom Lifts
| Spec | JLG 340AJ | JLG 450AJ | JLG 600AJ | Genie Z-45 XC |
|---|---|---|---|---|
| Platform height | 33 ft 10 in | 45 ft | 60 ft 7 in | 45 ft 6 in |
| Horizontal outreach | 19 ft 11 in | 25 ft | 39 ft 9 in | 24 ft 9 in |
| Up-and-over height | 17 ft | 24 ft | 26 ft 7 in | 24 ft 5 in |
| Capacity (unrestricted) | 500 lb | 550 lb | 500 lb | 660 lb |
| Width | 6 ft 4 in | 7 ft 9 in | 8 ft 2 in | 7 ft 6 in |
| Weight | 9,700 lb | 12,650 lb | 22,740 lb | 16,360 lb |
The 450AJ is the middle of JLG’s articulating line. Step down to the JLG 340AJ for lighter, narrower work, or up to the JLG 600AJ (see our JLG 600AJ guide) for 60 ft of height. The Genie Z-45 XC carries more weight but is heavier to haul, and the older Genie Z-45/25J is the 450AJ’s closest Genie rival on the used market. Specs are from manufacturer and dealer spec sheets.
Articulating vs. Telescopic Boom Lifts
An articulating boom like the 450AJ bends at one or more knuckles, so it can reach up, over and around obstacles such as roof edges, pipes and steel. A telescopic (straight) boom like the JLG 400S extends in a straight line, giving more horizontal reach for the height and faster positioning in open areas.
- Choose an articulating boom for crowded sites, work over obstacles, and jobs where you need to get close to the work surface from different angles.
- Choose a telescopic boom for open sites, maximum outreach, and work you can reach in a straight line.
Read more in our guide to types of boom lifts.
JLG 450AJ Pros and Cons
| Pros | Cons |
|---|---|
| Up-and-over reach with a 144 degree jib | Less outreach than a 45 ft telescopic boom |
| Zero tail swing for tight sites | Diesel or gas power, so not for most indoor work |
| 4WD and 45% gradeability | Heavier and wider than a 34 ft class lift |
| Very common, so parts and used units are easy to find | Popular rental machine, so many used units have high hours |
| Rated highly by OHR Rents mechanics | Tier 4 Final diesel emissions parts add service cost |
Common Uses for the JLG 450AJ
- Commercial construction: framing, steel, siding, windows and roofing work over and around obstacles.
- Facility maintenance: lighting, signs, HVAC, gutters and exterior repairs on large buildings.
- Industrial plants: reaching over piping, conveyors and equipment to service overhead systems.
- Painting and inspections: facades, tanks and structures that need close access from several angles.
- Events and entertainment: rigging lights and banners at outdoor venues.
- Tree work and landscaping: trimming and canopy work where a lift can drive on site.
JLG 450AJ Price
In October 2026, FleetNow had 142 priced JLG 450AJ listings. Asking prices ran from $22,532 to $99,950, with a median of $36,950. The middle half of listings fell between $33,900 and $40,500.
| Model years | Listings | Typical asking price (middle half) | Median hours |
|---|---|---|---|
| 2007-2012 | 10 | $26,100 – $36,900 | 2,050 |
| 2013-2015 | 34 | $31,400 – $38,200 | 2,187 |
| 2016-2018 | 86 | $34,850 – $39,200 | 1,877 |
| 2019-2022 | 8 | $43,900 – $59,900 | 1,202 |
| 2023 and newer | 4 | $82,950 – $92,850 | 274 |
Prices change daily, so check current JLG 450AJ listings. New 450AJs are quoted by dealers, and the newest units on FleetNow (2023 and later, under 300 hours) were listed between about $83,000 and $100,000.
What to Check Before Buying a Used JLG 450AJ
“Does this machine have all functions working; the boom goes up and down and the jib works left and right,” says Alex Birtalan of FleetNow. Start there, then check:
- Hours and service records: look for regular engine, hydraulic and annual inspection records.
- Boom and jib: test every function from the platform and ground controls, and look for cracks, bent parts and worn pins or wear pads.
- Hydraulics: check for leaks at cylinders, hoses and the turntable.
- Turntable and swing: listen for grinding and check for excess play in the swing bearing.
- Engine: confirm the engine on the serial plate, check for smoke and hard starting, and ask about Tier 4 emissions system service.
- Tires, drive and 4WD: check tire wear and test drive, steering and brakes on a slope.
- Safety systems: tilt alarm, emergency lowering, platform load sensing (on newer units), decals and the operator’s manual.
Document the walkaround with the FleetNow Inspect app, and ask for photos of the hour meter and serial plate.
JLG HC3 Boom Lift Video
This JLG video shows its line of high-capacity HC3 boom lifts, which includes an HC3 version of the 450AJ. It is a product overview and does not replace operator training.
Shop JLG 450AJ and Articulating Boom Lifts
FleetNow lists used JLG 450AJ lifts and other articulating boom lifts from dealers and owners across the country, including JLG articulating booms. Compare all used boom lifts, or read our guide to JLG boom lifts. Need help finding the right machine? Contact our team or call 1-216-973-5124. Selling a boom lift? List it on FleetNow.
JLG 450AJ FAQs
The JLG 450AJ has a 45 ft platform height, which gives a working height of about 51 ft. It reaches 25 ft of horizontal outreach and 24 ft of up-and-over clearance.
The standard 450AJ is rated for 550 lb unrestricted on the platform. The HC3 version adds a higher restricted capacity, so always follow the capacity decals on the machine.
In October 2026, FleetNow listings for used JLG 450AJs ranged from about $22,500 to $100,000, and most fell between $33,900 and $40,500. Year, hours and condition drive the price.
A current JLG 450AJ weighs about 12,650 lb. Weight varies with the engine, tires and options, so check the serial plate before hauling one.
The 450AJ is an articulating boom lift. The A stands for articulating and the J for jib, so it can reach up and over obstacles that a telescopic boom cannot.
Current 450AJs use a 49 hp Deutz D2.9 Tier 4 Final diesel or an 82 hp GM Vortec 3000 dual fuel engine. Older units may have different engines, so check the serial plate.
The 450AJ is a diesel or dual fuel rough terrain machine built mainly for outdoor work. For indoor jobs, the electric JLG E450AJ offers similar height with zero emissions.
