50mm Tow Ball with 25mm High Shoulder | 3.5t ATM Tow Ball
The Couplemate™ 50mm High Shoulder Tow Ball was engineered specifically for Australian off-road conditions.
Experienced tower operators understand the importance of a level drawbar. With so many different vehicle combinations on the road, it’s no surprise that Adjustable Tow Hitches have become increasingly popular.
While we’re huge fans of our CM529 – Mega Adjustable Hitch, we recognise that not everyone needs such a heavy-duty option. This is where the 50mm High Shoulder Tow Ball comes in.
In particular, Australians often pair this tow ball with the ALKO 619350 Off-Road Ball Coupling. The high shoulder design offers greater articulation and prevents the coupling head from scraping against the receiver tongue.
The increased shoulder height lifts the coupling by about 13mm compared to a standard 50mm ball, providing a small but effective height boost. Off-road caravans and trailers face tough conditions—whether rock crawling in the outback or navigating the potholes on the Bruce Highway.
In these environments, the mechanical connection between your vehicle and trailer undergoes significant shock loading. The Couplemate™ Tow Ball will endure these stresses while ensuring a safe towing experience.
Tow Ball Shank Specifications
- Diameter: 22mm (7/8″)
- Length: 62mm
- Thread Length: 52mm
- Threads per Inch: 14 (UNF)
Australian Standard Compliant (max. 3.5t ATM)
The Couplemate™ Core Range ensures strength and safety through solid engineering, and our 50mm high rise ball is no exception. Our 50mm high rise ball is compliant with AS 4177.2 and ADR 62/02 (Mechanical Connections between Vehicles).
- Rating: 3500kg maximum ATM
- Torque Setting: 368Nm
View product documentation online: 50mm High Shoulder Tow Ball Specifications
Made from High Strength Steel
Our internal engineers and production team quality check all manufacturing materials. The Couplemate™ high shoulder tow ball is manufactured from Grade 4140 high tensile steel.
As an engineering steel, 4140 is universally known for its strength and robust composition. Given Australia’s tough towing conditions, 4140 steel provides the necessary mechanical properties to ensure strength and security.
(Excerpt from the BlueScope Catalogue, page 138).
AS 4177.2 Manufacturer Markings
As a Queensland-based manufacturer, it’s important to us that all Couplemate™ components meet and exceed quality standards.Couplemate™ manufactures this high rise tow ball in our Brisbane Headquarters.
Each component is marked with:
- Tow Ball Size: 50mm
- Manufacturer: Couplemate
- Tow Ball Rating: 3.5T
- Batch Number: Month / Year
85kN Longitudinal Force Test
Additional information
Weight | 2 kg |
---|---|
Dimensions | 10 × 5 × 5 cm |
Our Service Lifetime Warranty
Our goods come with guarantees that cannot be excluded under the Australian Consumer Law. You are entitled to a replacement or refund for a major failure and compensation for any other reasonably foreseeable loss or damage. You are also entitled to have the goods repaired or replaced if the goods fail to be of acceptable quality and the failure does not amount to a major failure.
Couplemate™ is a manufacturer and vendor of high-quality towing, trailer, and caravan components. Couplemate™ Core Goods and Custom Work are guaranteed to be free of defects for the service lifetime of the product when used as intended.
Warranties are non-transferrable and Couplemate™ requires satisfactory proof of purchase prior to issuing a remedy. The full Couplemate™ Warranty Policy can be found in the Terms & Conditions: Section 8 – Consumer Guarantees & Warranty.
Warranties are in addition to your rights under the Australian Consumer Law. If something is wrong with your order, please contact our team.
60-Day Returns
After 60 years of experience, we know that life has its unpredictable moments.
All Couplemate™ orders (online, over the phone, or in-store) have a 60 day period for change-of-mind returns and exchanges. There are some items that can’t be returned and some returns may incur a 15% restocking fee.
You can view our full policy for change-of-mind returns here.
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