2021 JLG 660SJ Straight Boom Lift – 520 Hours | 60' Platform Height | 66' Working Height

This 2021 JLG 660SJ Straight Boom Lift represents a high-performance aerial work platform engineered for demanding job site conditions where reach, stability, and reliability are critical. With only 520 hours of use, this machine delivers exceptional value for contractors and industrial operators looking for a late-model straight boom lift that is still in excellent working life. Built by JLG, a globally recognized leader in aerial lift equipment, the 660SJ is designed to provide strong vertical and horizontal outreach, making it a trusted solution for construction, maintenance, industrial facility work, and large-scale infrastructure projects. Powered by a Deutz Turbo Diesel engine and equipped with 4WD capability, foam filled tires, an 8-foot platform, and a jib for enhanced positioning flexibility, this machine is engineered for serious productivity at height. Any Questions, Please Call Joe @ 215-781-2490!

Key Specifications

• Year: 2021
• Make: JLG
• Model: 660SJ
• Category: Straight Boom Lift
• Hours: 520
• Engine: Deutz Turbo Diesel
• Drive: 4WD
• Platform Size: 8' Basket
• Tires: Foam Filled
• Jib: Included
• Platform Height: 60'
• Working Height: 66'
• Price: $79,850.00

Machine Overview and Design Strength

The JLG 660SJ Straight Boom Lift is built for operators who need both reach and reliability in challenging environments. As a straight boom lift, it offers direct vertical and horizontal extension without articulation, making it ideal for applications requiring long reach and stable elevation. The 2021 model year ensures modern engineering standards, improved efficiency, and updated safety features compared to older units. With only 520 operating hours, this machine has seen limited use, meaning major structural and mechanical components remain in strong condition, offering buyers a dependable long-term investment for fleet expansion or project-specific needs.

Engine Performance – Deutz Turbo Diesel Power

At the heart of this JLG 660SJ is a Deutz Turbo Diesel engine, known for its durability, fuel efficiency, and consistent power delivery in heavy-duty equipment applications. Turbo diesel engines are widely preferred in construction machinery due to their ability to maintain torque under load, especially when lifting personnel and tools to significant heights. The Deutz power plant ensures smooth operation across variable terrain and extended work cycles, making it a dependable choice for contractors who require uninterrupted productivity throughout the workday.

4WD Capability for Job Site Mobility

This straight boom lift is equipped with a 4-wheel drive system, significantly enhancing its ability to navigate rough, uneven, or unpaved job sites. 4WD ensures optimal traction and control when moving across construction zones, industrial yards, or outdoor infrastructure projects. This capability reduces downtime caused by terrain limitations and allows operators to position the machine precisely where it is needed, improving overall job site efficiency and safety.

Platform Design and Working Reach

The 8-foot platform provides a spacious working area, allowing multiple workers along with tools and materials to be elevated safely. This added platform space improves productivity by reducing the need for repeated trips up and down the lift. The machine offers a platform height of 60 feet and a total working height of 66 feet, giving operators excellent vertical access for steel erection, exterior building maintenance, signage installation, and utility work. The straight boom design ensures smooth elevation and consistent reach performance at full extension.

Foam Filled Tires for Stability and Durability

Foam filled tires are a key advantage in demanding job site environments where punctures and flat tires can cause costly downtime. These tires provide enhanced durability compared to standard pneumatic options, ensuring the JLG 660SJ maintains stability even on rough terrain. Foam filling eliminates air pressure issues while still offering shock absorption, making the machine more reliable and safer for elevated work operations in construction and industrial settings.

Integrated Jib for Precision Positioning

The included jib adds an important layer of articulation and control to this straight boom lift. While the main boom provides height and reach, the jib allows for finer positioning adjustments at the work area, improving access to difficult angles and overhead structures. This feature is particularly valuable in complex job sites where precise positioning is required for welding, electrical installation, or façade work. The jib enhances versatility without compromising the machine’s overall stability.

Condition and Low-Hour Advantage

With just 520 hours, this 2021 JLG 660SJ Straight Boom Lift is considered low-hour equipment in the aerial lift category. Lower operating hours typically indicate reduced wear on hydraulic systems, engine components, and structural joints. This translates into lower maintenance requirements and longer operational lifespan for the next owner. Each unit offered by NLEQ is carefully inspected to ensure it meets high standards of functionality, reliability, and safety before being made available for sale.

Advantages of the JLG 660SJ

This model delivers a combination of height, reach, and durability that makes it suitable for a wide range of professional applications. The straight boom configuration ensures maximum outreach without the complexity of multi-articulation systems, making it easier for operators to position the platform efficiently. Combined with 4WD capability, a powerful Deutz diesel engine, and foam filled tires, this machine is built to perform reliably in demanding outdoor environments where productivity and uptime are essential.

Common Applications

• Commercial and industrial construction projects
• Steel erection and structural assembly
• Building exterior maintenance and repairs
• Electrical and mechanical installation work
• Signage and lighting installation at height
• Infrastructure and utility maintenance

Ownership Value and Cost Efficiency

Investing in a 2021 used JLG 660SJ Straight Boom Lift offers significant cost savings compared to purchasing new equipment while still delivering modern performance and reliability. With its low operating hours and strong component configuration, this machine provides long-term value for contractors looking to expand fleet capability without excessive capital expenditure. The combination of fuel-efficient diesel power, durable tires, and robust construction ensures reduced operating costs and improved return on investment over time.

Why This JLG 660SJ Stands Out

The JLG 660SJ is widely respected in the aerial lift industry for its balance of reach, stability, and operational simplicity. Its 60-foot platform height and 66-foot working height make it suitable for a wide range of elevated work requirements, while the Deutz Turbo Diesel engine ensures dependable performance even under heavy load conditions. The inclusion of a jib and 8-foot platform further enhances usability, making it a practical solution for teams requiring both height and workspace efficiency in one machine.

Why Buy from NLEQ

NLEQ is a trusted source for high-quality used construction equipment, offering machines that are thoroughly inspected and tested before listing. Buyers benefit from transparent descriptions, accurate specifications, and expert evaluation of every unit. This ensures confidence in both performance and condition, reducing risk and helping contractors make informed purchasing decisions. NLEQ focuses on delivering equipment that is ready to go to work immediately upon delivery.

Next Steps

If you are looking for a reliable, low-hour straight boom lift with strong reach capabilities and modern engineering, this 2021 JLG 660SJ is an excellent choice. With its Deutz Turbo Diesel engine, 4WD system, foam filled tires, and jib-equipped platform, it is ready to handle demanding job site conditions. Any Questions, Please Call Joe @ 215-781-2490! Contact NLEQ today to learn more or secure this machine before it is gone.