4-inch Drop 70mm Towbar Receiver Hitch 4.5t

4-inch Drop 70mm Towbar Receiver Hitch 4.5t


Australian Made and Owned.Brand: Couplemate

Made in Brisbane, Australia.

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4-inch Drop 70mm Towbar Receiver Hitch 4.5t

Introducing our best-selling heavy-duty tow bar: the cast tow bar receiver, perfectly suited for a 70mm tow ball.

You'll never have to wait long for your order, as we keep ample stocks of premium 70mm tow bar receivers on hand for immediate express dispatch.

The Couplemate 70mm towbar receiver hitch is available in both 50mm and 100mm drops, and features a powder-coated finish for added resistance against corrosion, making it the ideal choice for use with campers, caravans, and boat trailers.


For added versatility, it can also be used with the Cruisemaster DO45 tow pin.Australian Made and Owned.

You can trust the quality and durability of our 70mm receiver hitches, which are expertly cast, machined, and tested right here in Australia.

70mm Towbar Receiver Product Specifications

  • Material: Cast Ductile Iron (500/7)
  • Maximum Capacity: 4.5t
  • Shank hole: 32mm
  • Does not come with a 70mm tow ball.

This product also suits shank size for 2 5/16" Tow Balls (American size).

CM524 | 100mm Drop Measurements

Key measurements:

  • Total Length
    • 375mm
  • Centre Hole of the tow ball to the pin centre holes:
    • 241mm
    • 291mm
  • From the hitch pinhole to the drop -
    • 90mm
    • 140mm

Please refer to the image above for more measurements.

How can I insert a 50mm tow ball?

Towing Disaster: 4.5t on a 3.5t Receiver70mm Towbar Receiver

You are able to use a Tow Ball Reducer Bush to take a 4.5t receiver to a 3.t receiver. However, you cannot go the opposite way.

The image on the right shows a well-known heavy-duty tow ball mount or tow bar tongue that is rated to 3.5t.

However, a welder has used an oxy torch to enlarge the hole size to 32mm to fit a 4.5t tow ball.

It is important to use equipment that is fit for purpose and rated at the appropriate weight limit. Therefore, we replaced the broken equipment with new equipment rated at 4.5t to ensure safety on the road.

The image on the right is a well-known heavy-duty tow ball mount or towbar tongue.

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Additional information

Weight8 kg
Dimensions40 × 20 × 10 cm
Receiver Drop

Quantity Buy

Single Unit, Bulk 10

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