Cruisemaster DO35 Coupling with Handbrake

As caravans get heavier and more Australians use weight distribution systems, we went back to the drawing board to engineer a coupling that can handle it all.

Crafted from forged steel, laser-cut stainless steel, precision cast components, and premium polyurethane, the DO35v3 delivers uncompromising strength while reducing overall weight. In fact, it’s over 50% stronger than the previous model. The new design also eliminates the need for hitch adaptors*, so you can hit the road faster and with fewer hassles.

After a grueling RAT Run to Cape York, the DO35v3 proved its durability across some of Australia’s toughest terrain — all while retaining the simple drop-on attachment system trusted by travellers nationwide.
*Tested on HR Classic, HR Standard, Milford, and EZ-Lift systems.

FEATURES
- Forged yoke for maximum strength and reliability
- ‘Checklock’ cap system keeps dirt out and provides a clear visual lock indicator
- Low-profile bumper improves clearance for off-road performance
- Taller, forged tow pin allows easy fitment without weight distribution adaptors (backward compatible)
- Zn-Ni and e-coat finish for superior corrosion protection
- Machined base and bolt lands for precise, stress-free mounting
- 360° rotation helps reduce roll-over risk
- Greaseable bushes for long-lasting smooth operation
- 2-Stage ADR compliant locking mechanism for safety and peace of mind
- Exceeds ADR 62/01 & 62/02 strength requirements
- Quiet towing performance reduces fatigue on long hauls
- Tested over 45,000 km, including Cape York conditions
- No tow ball height restrictions
- Mounting centres: 54mm x 185mm
- Bolts included
- Lock pins sold separately

SPECIFICATIONS
- Towing Capacity:ADR rated to 3500kg (7714lb) for Australian use, and SAE J684 Class 4 for North America — ensuring compatibility across a wide range of vehicles and trailers
- Weight Distribution Hitch Compatibility:Yes. The DO35v3 can be used with most weight distribution hitches provided coupling movement is unobstructed and the maximum downward load of 350kg (772lb) is not exceeded. Always check for clearance, especially when reversing tightly.

MAINTENANCE
Regular upkeep ensures lasting performance
- Keep the tow pin and mating surfaces clean and lightly greased
- Check the tow pin O-ring condition
- Grease lubrication points regularly
- Adjust the slotted nut & pin periodically if needed
- Perform a comprehensive maintenance check every 10,000 km or 12 months