Differential locks

More traction, more control, more safety: With the pneumatically operated ARB Air Locker differential lock, we equip your Mercedes Sprinter on the rear axle so that you can engage a 100% differential lock when needed. Ideal for off-road conversions, construction site vehicles, winter use, forestry and hunting vehicles, campers/expedition vehicles or all Sprinters that need to reliably get ahead even off paved roads.

Important: Exact fit only with 280 mm differential cover

The ARB Airlocker only fits Sprinter models with a 280 mm differential cover. In addition, we absolutely need the axle ratio to ensure correct configuration and professional installation.

No shipping – consultation & installation by specialists only

This offer is for overview purposes only. The product will not be shipped.
Please contact us in writing – we will conduct a detailed consultation in advance, clarify all technical data (including the exact axle ratio) and schedule the appointment. For the conversion, we will need your vehicle for at least 3 full working days in our workshop.

ARB Air Locker Sprinter – Scope of delivery & installation services (complete package)

Attention: The differential lock only fits the rear axle.

Installation includes:

• Differential lock for Mercedes Sprinter (rear axle)
• Mounting kit for the lock
• Ring and pinion gear 4.363
• Compressor 12V CKMA12
• Labor time for compressor and lock (professional installation & commissioning)
• 100% locking at the push of a button – how the ARB Airlocker works

The ARB Air Locker is pneumatically actuated and allows full locking (100%) of the differential. This means: If one wheel spins, power is still reliably transferred to the second wheel – for maximum traction in mud, snow, sand, on wet grass or in articulations.

Note on installation: Rear axle camber (mandatory check)

Please note: Installation is only possible if the negative camber on the rear axle is no more than 0°2'.
If the value exceeds -0°2', we unfortunately cannot carry out the installation and you will receive a refund after ordering.

• We check this value with an axle alignment at our facility.
• To avoid unnecessary downtime costs and a potentially long journey, we ask you to have an axle alignment done at a workshop near you in advance and to forward the measurement values - however, we are also happy to do this for you.

Who benefits from a differential lock in the Sprinter?

A differential lock for the Mercedes Sprinter is particularly useful if you:

• frequently drive on construction sites, dirt roads or in difficult terrain
• use or convert your Sprinter as a 4x4/off-road camper
• drive in winter service, in mountain regions or in snow & ice
• have towing operations, trailer operation or heavy loads with poor traction

Contact & consultation (axle ratio required)

For a binding check, we need at least:

• Confirmation of 280 mm differential cover
• exact axle ratio (mandatory information)
• ideally, the axle alignment including camber values

Write to us – our specialists will advise you in detail and plan the installation including the timeframe.