Couplemate Express Trailer Parts

6t Pintle Tow Bar Hitch Adaptor

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$121.00 Inc.GST

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6t Pintle Towbar Adaptor | Australian-Made

The Couplemate™ CM510 Pintle Hook Tow Bar Adaptor is the ultimate solution for versatile towing needs.

Designed with three mounting positions and eight holes, this adaptor lets you easily connect pintle hooks to a 50mm receiver hitch, making it the perfect companion for heavy-duty towing.

Crafted with meticulous precision using Couplemate™ Precision Weld Technology, the CM510 sets the standard for durability and reliability.

Constructed from solid K1045 Steel, this adaptor arm delivers unmatched strength and longevity for a secure towing experience every time.


Product Specifications

  • Materials: K14045 Steel, 250G Mild Steel
  • Coating: Black Powder Coated
  • Hole Spacings: 85mm x 45mm
  • Mounting Hole: 12.50mm
  • Bar Size: 50mm x 50mm
  • Towing Capacity: 6000kg maximum ATM
  • D-Value: 12kN – 76.6kN depending on hole pattern selected.

This product requires a 5/8″ or 16mm hitch pin (sold separately) to secure it in place. Couplemate™ recommends the use of a high-tensile pin.

This product can safely be used upside down (inverted).


ADR-Compliant Tow Bar Adaptor

The Couplemate™ Tow Bar Adaptor is manufactured in accordance with and tested to AS4177 and ADR 62/02.

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

On 11/07/2023, an independent tester conducted strength testing on the Towbar-510 in accordance with the static testing requirements of ADR62/02. The supplied Towbar-510 demonstrated compliance with the performance requirements of ADR62/02 when tested in accordance with clause 13.3 for towbars over 3.5 tonnes ATM, up to 6.0 T ATM.

Loading Specifications

The Towbar-510 was subjected to a minimum loading of:

  • 88.29kN longitudinal tension and compression
  • 29.43kN transverse thrust; and
  • 29.43kN vertical tension and compression.

Towbar-510 meets the performance requirements set out in clause 13.3 for a trailer ATM rating of 6,000kg (6T).

While the Towbar-510 meets the requirements of ADR62/02, there is currently no separate component type category for towing accessories. Therefore, there is no standard testing regime for towing accessories like Towbar-510. Towbar-510 has not received a CTA from the Department of Infrastructure for that reason.

6T Pintle Tow Bar Hitch Adaptor: Do’s & Don’ts FAQ

What You SHOULD Do (Do’s)

  • ✔ Check your capacities: Always verify that your vehicle’s towing capacity and the tow bar rating meet or exceed the 6-tonne limit before hitching up.
  • ✔ Use correct hardware: Ensure you use high-tensile grade 8.8 bolts (or higher) and locknuts to secure the pintle hook to the adaptor plate.
  • ✔ Inspect before every trip: Regularly check for hairline cracks, wear in the receiver hitch hole, and ensure the hitch pin is fully locked with a clip.
  • ✔ Cross your safety chains: Always cross your trailer safety chains underneath the adaptor setup to prevent the tongue from dropping to the road if disconnected.

What You SHOULD NOT Do (Don’ts)
  • ✘ Do not exceed 6,000kg: Never overload the adaptor beyond its maximum 6t rating, as this can cause catastrophic structural failure while driving.
  • ✘ Do not modify or weld: Avoid drilling new holes, grinding, or welding the adaptor plate, as any modification compromises its engineered strength.
  • ✘ Do not ignore off-road reduction: Standard towing capacities often drop by up to 50% when navigating severe off-road or corrugated terrain.
  • ✘ Do not mix receiver sizes: Never use a standard 2-inch shank in a larger 2.5-inch or 3-inch receiver without the properly rated reducer sleeves.

Additional information

Weight 7 kg
Dimensions 30 × 15 × 15 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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