2021 JLG 660SJ Diesel

Hours 2664, Year 2021, Make JLG, Model 660SJ, Category Straight Boom Lift

This 2021 JLG 660SJ Straight Boom Lift, NLEQ# 148435, is a late-model, low-hour unit built for serious aerial access and productivity. With just 2,664 hours and powered by a proven Deutz diesel engine driving a 4WD system, this JLG straight boom offers the reliability, reach, and terrain capability contractors need on demanding commercial and industrial job sites. Offered by NLEQ, a trusted leader in used heavy construction equipment, this machine has been carefully tested and inspected, giving you dependable information to make a confident purchase decision.

Overview

The JLG 660SJ straight boom lift is renowned across the industry for its direct, no-nonsense reach to height, efficient setup, and stable performance on uneven ground. As a 2021 model, this unit benefits from modern engineering refinements and up-to-date controls that help operators work quickly and precisely. The Deutz diesel powerplant is a standout for durability and low operating costs, and the 4WD drivetrain adds traction and control when conditions get tough. Whether you are tackling steel erection, façade work, industrial maintenance, utilities, or large-site construction, the 660SJ platform is built to deliver consistent productivity shift after shift.

Specifications

• Manufacturer: JLG
• Model: 660SJ
• Year: 2021
• Category: Straight Boom Lift
• Hours: 2,664
• Engine/Fuel: Deutz diesel
• Drive: 4WD
• NLEQ#: 148435
• Price: $79,850.00

These specs reflect the critical details buyers look for when evaluating a used straight boom lift: a late model year, low hours for its class, a reputable engine manufacturer, and four-wheel drive capability for job site mobility.

Condition

Every machine NLEQ lists is carefully tested and inspected prior to sale. That means you get an honest, accurate picture of the machine’s current performance, systems function, and operational readiness. On a unit like this 2021 JLG 660SJ, the inspection focuses on engine performance, hydraulic responsiveness, drive and steer functions, platform controls, safety systems, and overall structural integrity. With only 2,664 hours, the wear profile is aligned with a well-maintained lift from a newer production year. If you require additional detail, NLEQ can walk you through the latest inspection findings and share current photos and videos so you can buy with confidence.

Advantages of This JLG 660SJ

• Deutz Diesel Reliability: The Deutz diesel engine is widely respected for long service life, fuel efficiency, and straightforward maintenance. In real-world construction environments, Deutz powerplants are valued for dependable cold starts, steady torque delivery, and readily available parts and service across North America.
• 4WD Traction and Control: Four-wheel drive gives operators the grip and stability needed to work across dirt, gravel, and uneven terrain. On large sites with mixed conditions, 4WD reduces time lost to repositioning or getting stuck, helping crews stay on schedule.
• Proven JLG Platform: The JLG 660SJ is a mainstay in fleets because it is simple to operate, fast to position, and built to handle heavy-duty daily use. The straight boom design delivers efficient, direct access to work areas without the extra articulation steps of other lift types.
• Low-Hour, Late-Model Value: A 2021 unit with 2,664 hours offers an attractive balance of modern features and remaining service life, typically translating to lower downtime, predictable maintenance, and strong resale value down the line.

Many buyers also look for optional capabilities commonly associated with the JLG 660SJ platform, such as rough terrain tires for improved flotation and site mobility, a jib for finer positioning at height, and on-board power solutions like JLG SkyPower for running tools in the platform. If these options are important to your work, talk to NLEQ about the exact configuration of this unit and availability of similar 660SJ machines with those features.

Applications and Job Site Fit

The JLG 660SJ straight boom lift aligns with a wide range of elevated work needs where safe, stable vertical and horizontal reach are essential. Contractors and facility teams choose this model for its straightforward operation, predictable handling, and ability to cover a lot of work area quickly.

• Commercial Construction: Structural steel, formwork, decking, and façade installation benefit from a straight boom’s fast point-to-point access and steady platform behavior.
• Industrial Maintenance: Plants, refineries, and distribution centers rely on straight booms for mechanical, electrical, and HVAC tasks at height with direct approach to the work.
• Exterior Envelope Work: Curtain wall, EIFS, glazing, painting, and signage installation often call for the reach and stability of a 660-class straight boom.
• Utilities and Infrastructure: Bridges, road lighting, and public works crews value the 4WD capability for mixed surface sites and the work envelope typical of the 660SJ platform.
• Rental Fleet Addition: As a staple model with broad demand, a 2021 JLG 660SJ can strengthen utilization rates and ROI for rental providers.

For buyers familiar with the JLG 660SJ series, typical configurations in this class are known for a tall platform height and generous working height, along with the option for a jib to fine-tune positioning at elevation. If specific reach metrics, tire packages, or power options like SkyPower are mission-critical for your projects, NLEQ can verify the exact setup on this machine or match you to another 660SJ configured to your needs.

Ownership Value

Choosing a used 2021 JLG 660SJ with 2,664 hours can significantly reduce acquisition cost while preserving the reliability and capability you need. Major value drivers include the Deutz diesel’s reputation for long service intervals, the 4WD system’s site flexibility, and the market recognition of the JLG brand, which supports parts availability and technician familiarity. Lower upfront cost combined with proven durability typically results in a lower total cost of ownership and faster payback compared to buying new.

• Lower Depreciation: Let the first owner absorb the steepest depreciation while you capture the productive life remaining in a late-model lift.
• Serviceability: Deutz engines and JLG components are well supported, with accessible service information and parts channels that help keep downtime minimal.
• Resale Strength: JLG straight boom lifts in the 660 class maintain strong secondary market interest, improving exit options when you decide to rotate equipment.
• Fleet Standardization: If you already run JLG booms, adding another 660SJ simplifies training, parts stocking, and maintenance procedures.

Why Buy a JLG 660SJ

The JLG 660SJ earns its reputation as a workhorse straight boom lift by combining a spacious platform, intuitive controls, and a robust chassis with the reach envelope demanded by commercial and industrial projects. Operators value the predictable boom movement and platform stability, while maintenance teams appreciate the accessibility of service points and the support network behind JLG and Deutz. For project managers, the key benefit is predictable productivity: set up quickly, get to the work area efficiently, and stay working with minimal interruptions.

In many fleets, the 660SJ is the go-to machine for mid-to-high elevation tasks where speed of access and stability matter most. The platform is also well-suited to tool use aloft—particularly when paired with on-board power solutions common to this model line—helping crews complete multiple task types without coming down between steps.

Why Buy from NLEQ

NLEQ is one of the industry’s most trusted names in used heavy construction equipment. Our process is built around transparency and buyer confidence. Each machine is carefully tested and inspected before being offered for sale, and we stand behind the accuracy and honesty of our listings. That means you get the information you need to make a smart purchase—and a partner who will help you find the right configuration if this exact unit is not the perfect fit.

• Expert Guidance: Work directly with equipment experts who understand straight boom lifts and can help you evaluate how this 660SJ aligns with your job requirements.
• Accurate Listings: We inspect and test machines so you can rely on the stated condition and functionality.
• Broad Inventory: If you need specific options—such as rough terrain tires, a jib, or on-board power—we can help source a comparable JLG 660SJ configured for your application.
• Financing and Logistics: NLEQ can assist with financing options and arrange transportation to your site to streamline acquisition.

Next Steps

If you are seeking a reliable, late-model straight boom lift with low hours and four-wheel-drive capability, this 2021 JLG 660SJ is a strong candidate. Contact NLEQ to review the inspection details, request current photos and video, and discuss your application needs. Our team can confirm the exact configuration of this unit—engine, drive, controls, and any installed options—and help you compare it to similar JLG 660SJ machines if you require a specific tire package, jib, or on-board power solution.

Ask about availability, delivery timing, and trade-in options, and secure this 660SJ at $79,850.00 while it is in stock. With NLEQ’s careful inspection process, deep product knowledge, and commitment to honest, reliable information, you can purchase with confidence and keep your projects on schedule with a dependable JLG straight boom lift.