3.5t x 120mm Adjustable Tow Hitch – Short


7 in stock

Australia’s #1 Adjustable Tow Hitch

Smaller Size. Big Impact.

Easily tow multiple trailers with one hitch.
Heavy-duty solid cast design for strength.
Australian-made hitch with 24-Month warranty.

Designed and manufactured by Couplemate™ Australia.

7 in stock

Frequently Bought Together

Stainless Tow Bar Anti-Rattle Shim Kit + Installation Video

Why should you install Anti-Rattle Hitch Shims? 

Minimises Tow Bar Rattle
Quick and Easy Installation
Made of Stainless Steel

Designed and manufactured by Couplemate™ Australia.

50mm High Shoulder Tow Ball - 3500kg

Brand: Couplemate

Couplemate accepts PayPal, Visa and Mastercard.

Tow with Confidence: ADR-Approved Short Adjustable Tow Hitch

The Couplemate™ CM529S is a Premium-Cast robust, shorter adjustable tow hitch, specifically engineered to be the most robust hitch on the Australian market. This adjustable hitch is designed to handle caravans and trailers up to a 3500kg ATM; this short adjustable tow hitch receiver kit is a versatile and reliable way to tow a trailer or caravan.

Adjustable short tow hitches allow you to have precise control over the height of your tow ball, which impacts the height of the drawbar when attached to the tow vehicle. This flexibility allows you to tow different trailers at different heights conveniently.

The ball mount head provides up to 90mm of drop and up to 190 mm of rise (centre of a tow ball to centre pin). This is particularly useful for towing applications, from low-boat trailers to high-set camper trailers.

How does this compare to other Adjustable Hitches on the market? Most other tow hitches have a 114mm Rise and a 90mm drop, measuring from the centre pin to the tow ball plate.

When measured this way, the Couplemate™ CM529 offers a 140mm rise and a 140mm drop.

Adjustable Tow Hitch Specifications

The Couplemate™ CM529S is manufactured by and tested to ADR 62/02.

  • Capacity: 3500kg ATM
  • Materials: Cast Iron, Steel
  • Coating: Power-Coated
  • Receiver Size: 50mm x 50mm (2″)
  • M20 Nut Torque Setting: 268Nm

Approximately 10% of your trailer weight should sit on your tow ball. The Couplemate™ Adjustable Tow Hitch will suit trailers with a 3500kg ATM and can handle 350kg of vertical load.

Engineering schematic of an exploded view of the CM529S Adjustable Tow Hitch components. Helps understanding of product specifications.

Tow Ball

A range of tow balls or pins suits the adjustable towing platform.

The adjustable tow hitch kit includes.

    • 1 x 6 Hole Cast Shank Receiver
    • 1 x Ball Mount
    • 4 x M20 Zinc Washers
    • 2 x M20 Zinc Nuts
    • 1 x 7/8″ Zinc Spring Washer
    • 1 x 7/8″ Zinc Nut
    • 2 x M20 Zinc Grade 8 Bolts
    • 2 x M20 Zinc Spring Washers

Why is it the Premium Choice?

The Couplemate™ Confidence factor ensures that all our customers experience unrivalled product quality and reliability, backed by our commitment to innovation and excellence.

Precise Engineering & Manufacturing

The production of this product embodies Couplemate™’s motto of “Innovation by Design.” Utilising 3D CAD design, rigorous testing, and stringent Quality Control, Couplemate™’s engineers aimed to make it a market leader.

With a decade of casting experience and seven years of Australian manufacturing, Couplemate™ has integrated Precision Weld Technology, elevating the manufacturing quality. The CM529S combines Couplemate™’s history in heavy-duty casting with modern welding technology.

To view the full-size Engineering drawing, click here.

ADR Compliant for Safe Towing

The CM529S is meticulously designed, manufactured, and subjected to testing in strict adherence to ADR 62, which outlines the legal prerequisites for Mechanical Connections between Vehicles.

Australians need products that are durable and have proven performance. Our products are thoroughly tested, so we at Couplemate™ can attest to their reliability and quality.

This compliance serves as a clear testament to safety.

Multi-Purpose Use

This product is compatible with the conventional Australian 50mm tow ball and the widely used Cruisemaster™ DO35 Tow Pin.

The robust cast body offers sturdy reinforcement within the tow bar, while the clearance on the steel body facilitates the articulation commonly encountered in off-road couplings.

Invert the adjustable tow bar mount for extra height.

Find more associated products below.

2-Year Warranty

Unexpected bumps and shocks fill Australian roads.

We’ve designed this hitch with strength, security, and durability. With a two-year warranty, you can feel confident towing anywhere in Australia.

Additional information

Weight14 kg
Dimensions30 × 30 × 10 cm
Maximum Drop

50mm (inverted), 20mm (upright)

Maximum Rise

120mm (inverted), 85mm (upright)

Adjustable Increments


Receiver Size / Tow Bar

50.80 x 50.80 (2" box section)

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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