Gooseneck & Fifth Wheel Trailers


A Gooseneck trailer is a trailer that uses a ball fitted to the bed of a truck or ute. 

A fifth wheel trailer uses a u-shaped coupling in the tow vehicle bed: very similar to a semi trailer and truck. 

It has the advantage of allowing the tow vehicle to make tight turns using a revolution pin box system. Either type of trailer can be built in any length and weight capacity. Trailers over 4500kg will need air brakes fitting to tow vehicle and trailer.


Race Trailers


Our typical race car trailer can be built to any length / width / height. All are built to our stylish low sleek design. Any number of features can be included. 

The width between the internal mudguards can be 2020mm maximum. Wider cars may need ramps over mudguards. 


Horse Floats


We can build cost effective straight load floats and 2/3/4 angle load floats.

​Trailers- Custom built to your needs


We understand all aspects of motorsport and the different requirements of a trailer for each of the classes. We don't have a production line: we build each and every trailer to the exact requirements of the customer. Nothing is too much trouble and it will not cost you the earth.


Design & Build


​Give us your problem and we will provide a cost effective solution. A simple statement but one that can be very costly for the small to medium company that don't have large budget to complete. We work with your budget to find solution that can be implemented within that budget. We will never take on a project that we can't complete on time and on budget .

Fifth wheel trailer on Ford Ranger using Haymond Reese revolution pin box. This allows tights turns without hitting ute cab. 


Custom Trailers

Horse Floats

Gooseneck Trailers

Fifth Wheel Trailers

Our Promise

About us

Areas of Expertise

Trailer Examples

Standard double horse float quality build at an affordable price. 

Open trailer with tool box and race wheel storage. 

5m enclosed trailer with silver grey composite panels. Suitable for smaller cars like single seaters/speedway cars/motorcycles/karts.

Our Solutions

We promise our work is good and behind that promise, we want you to know that we back our work with a satisfaction guarantee. We won't stop working until your happy with  what we've done. 


We are a small family business that prides itself on solving problems for our customers in a cost effective manner. Some businesses have large budgets and can afford to employ "a money no object approach". These companies often employ large contractors with massive teams of people and lengthly completion times. Fortunately we are here to give the same end result faster and for a more affordable price.


KRB Engineering is located in Austral in South Western Sydney, NSW.