KLEIN TOOLS MODbox Caster Dolly 54828MB — Black interlocking dolly, 250 lb capacity, front locking casters

The Klein Tools 54828MB MODbox Caster Dolly converts any cleated MODbox into a lockable, mobile work platform that interlocks with up to three other dollies for expanded load capacity and on-site flexibility.

Whether you need a rolling base to move a parts box around a crowded job site or want several platforms locked together to support a larger assembly, this Klein Tools caster dolly is built for professional tradespeople. It pairs directly with MODbox units that include cleats, adds front locking casters for secure stationary use, and features a friction brake to keep the platform steady while loading. Rugged construction and thought-out wheel placement make it a practical addition to tool storage and material handling systems.

How does the dolly attach and form a larger platform?

The dolly mates with any MODbox that has cleats so you can wheel tool and parts boxes without lifting. Side and rear latches allow up to four dollies to interlock, creating a broader, stable base for heavier or oversized loads. Interlocking keeps the combined platform aligned during transport and while stationary.

• Direct cleat connection to MODbox units for secure mounting
• Side and back latches permit chaining of multiple dollies
• Interlocked configuration increases platform footprint and distribution of weight

What features help keep the dolly steady while loading?

A built-in friction brake pedal locks the dolly in place when you mount or remove boxes, reducing movement and making loading safer and more controlled. Two front casters lock independently to convert the dolly into a stable workstation that resists rolling. These controls let you switch between mobile and fixed setups quickly.

• Brake pedal engages friction-based hold during loading
• Two front locking casters support a stationary work position
• Fast transition from transport to locked workstation

What load capacity and wheel configurations does it offer?

Each dolly is rated to support up to 250 pounds, suitable for many toolboxes, parts bins, and equipment cases used on job sites. Dual-wheel positions—an inboard option for interlocked setups and an outboard placement for standalone stability—let you optimize the dolly for either combined platforms or independent use. The wheel layout balances mobility and steadiness under load.

• 250-pound individual dolly capacity
• Inboard wheel position to allow tighter interlocking with adjacent dollies
• Outboard wheel position increases stability when used alone

Is the dolly durable enough for daily trade use?

Klein Tools designs for professional environments, so the dolly is fabricated to withstand repeated job-site handling and frequent interlocking cycles. Materials and workmanship reflect the company’s long heritage in professional-grade tools, intending long service life and reliable performance. Regular inspection of wheels and latches keeps the unit operating at peak effectiveness.

• Engineered for repeated connection and transport on job sites
• Robust latches and brake mechanism for daily professional use
• Simple maintenance—inspect wheels and latch engagement periodically

Who is this for? The Klein Tools 54828MB MODbox Caster Dolly is aimed at electricians, contractors, maintenance technicians, and field service pros who use MODbox storage and need a flexible combination of mobility and stable workstation capability. It’s ideal when you want to reduce lifting, increase on-site organization, or assemble larger mobile platforms by linking multiple dollies together. Choose this dolly if you value durable, job-site-ready solutions that expand the usefulness of existing MODbox systems.