BOS 3-Rib Long Jockey Unit Kit – 50mm Clamp, Drill & Manual Drive (Up to 1800kg)

Built and tested for harsh Australian conditions, the BOS 3-Rib Gearbox Jockey Wheel Unit is a heavy-duty jockey solution designed for effortless lifting and long-term reliability.

Featuring BOS’ patented 3-rib gearbox with a unique 12mm drill drive, this unit allows quick, controlled operation using a cordless drill, with the option to switch to the manual handle at any time. Ideal for caravans, trailers, campers and off-road setups where strength and ease of use matter.

The 50mm diameter body fits directly into standard 50mm jockey clamps, while the stainless steel inner pipe, greaseable gearbox and locking system ensure smooth operation and stability both in use and while travelling.

Tested to 1800kg in a rigid clamp setup, this unit is built to handle real-world loads — not just brochure numbers.

FEATURES

• BOS® patented 3-rib gearbox for smooth, controlled lifting
• 12mm drill input (not ½”) for added security
• Manual handle included for backup operation
• Fits standard 50mm jockey wheel clamps
• LMATS tested up to 1800kg (rigid clamp setup)
• 400mm extended travel
• Stainless steel 42mm inner pipe
• Grease nipple for gearbox, thread & bearing lubrication
• Locking system to secure the inner pipe while travelling
• Premium textured black powder-coated finish
• Designed, tested & built for Australian conditions

WHATS INCLUDED

• BOS 3-Rib Gearbox Jockey Unit
• Articulated swivel base plate (30° ground adjustment)
• 12mm drill drive adaptor
• Manual handle
• 120mm stainless steel extension
• BOS travel strap
• Quick release pins
• Weather cover
  

SPECIFICATIONS

• Clamp size: 50mm diameter
• Maximum tested load: 1800kg
• Drive input: 12mm (drill compatible)
• Extended travel: 400mm
• Ground articulation: Up to 30°
• Finish: Textured black powder coat
• Warranty: 5 years