Compare the product overview, features,
specifications, construction, towing setup,
available options, warranty and common questions.
3500kgATM Rating
2680kgApprox. Payload
820kgTare Weight
3600mm × 1830mm × 300mm internal areaTrailer Size
5 YearsStructural Warranty
Product Overview
Heavy-duty 12×6 hot-dip galvanised tandem axle box trailer with 3500kg ATM, reinforced checker plate floor and 2680kg load capacity.
The KKT-T126UL3500 is a heavy-duty tandem axle box trailer designed for compatible cargo, trade equipment, construction materials, farm supplies, landscaping equipment and general transport.
It has a 3500kg ATM, 820kg tare weight excluding cage and 2680kg load capacity, with an internal size of approximately 3600mm × 1830mm × 300mm.
The trailer includes a checker plate floor with 70mm × 50mm SHS reinforcement running left to right and front to back, 300mm fully welded sides, removable front and rear drop-down gates, full step-up platforms on both sides, tie-down rails all around, welded ladder rack holders and 2 heavy-duty locking points on the drawbar.
The running gear includes dual 50mm round solid axles with parallel bearings, 12-inch electric drum brakes on all four wheels, 60mm 7-leaf rocker roller suspension, 15-inch wheels, 195/15 tyres, 50mm 3500kg electric coupling, 8-inch swing-up jockey wheel, LED tail lights and a 7-pin flat plug.
Features & Recommended Uses
Key Features
3500kg ATM
820kg tare weight excluding cage
2680kg load capacity
12×6 tandem axle box trailer
Internal dimensions: 3600mm × 1830mm × 300mm
Hot-dip galvanised trailer body
Checker plate floor
70mm × 50mm SHS floor reinforcement
Reinforcement running left to right and front to back
300mm high fully welded sides
1800mm drawbar length
150mm × 50mm RHS drawbar section
Removable front drop-down gate
Removable rear drop-down gate
Full step-up platforms on both sides
Tie-down rails all around
Welded ladder rack holders
2 heavy-duty locking points on drawbar
Dual 50mm round solid axles
Parallel bearings
12-inch electric drum brakes
Braking on all four wheels
60mm rocker roller suspension
7-leaf, 7mm spring setup
15-inch wheels
195/15 tyres
50mm 3500kg electric coupling
8-inch swing-up jockey wheel
LED tail lights
7-pin flat trailer plug
Recommended Uses
Trade equipment transport
Construction material transport
Farm and property use
Landscaping equipment transport
Building supply transport
Tool and machinery transport
Bulky cargo transport
Worksite material transport
Commercial transport use
General heavy-duty towing
Technical Specifications
Model / SKU
KKT-T126U3500
3D URL
tandem_box_trailer
Trailer Type
Tandem Axle Box Trailer
Size
12x6
ATM
ATM 3500kg
Axle Type
Tandem Axle
Brake Type
Electric Braked
Body Finish
Painted
Build, Capacity & Towing
3500kgATM
820kgTare
2680kgApprox. Payload
Axle Type
Tandem Axle
Brake Type
Electric Braked
Body Finish
Painted
Brakes
Electric Braked
Axle
Tandem Axle Box Trailer
Actual carrying capacity can change when
cages, ramps, toolboxes, spare wheels or
other accessories are fitted. Always confirm
the final trailer setup and your vehicle's
towing capacity before use.
Options & Included Equipment
Reinforced Checker Plate Floor
The checker plate floor includes 70mm × 50mm SHS reinforcement running left to right and front to back.
This provides a strong loading base for compatible tools, materials, equipment and general cargo.
Fully Welded 300mm Sides
The trailer includes 300mm high fully welded sides.
The sides provide practical load containment for general box trailer transport.
Removable Front and Rear Drop-Down Gates
The removable front and rear drop-down gates provide flexible loading access from both ends of the trailer.
All gates must be fully closed and secured before towing.
Full Step-Up Platforms
Full step-up platforms are fitted on both sides of the trailer.
The platforms provide practical access when loading, unloading and securing cargo.
Tie-Down Rails All Around
Tie-down rails are fitted around the trailer to assist with load restraint.
Only appropriately rated straps, chains or restraints should be used.
Welded Ladder Rack Holders
Welded ladder rack holders provide added flexibility for trade and utility applications.
Any ladder rack or long item must be correctly fitted and secured before towing.
Drawbar Locking Points
The trailer includes 2 heavy-duty locking points on the drawbar.
These should be checked regularly as part of trailer maintenance.
Electric Brakes
The trailer is fitted with 12-inch electric drum brakes on all four wheels.
A compatible electric brake controller is required in the towing vehicle.
Rocker Roller Suspension
The 60mm, 7-leaf, 7mm rocker roller suspension is designed for tandem axle trailer applications.
It supports stable load handling and practical towing performance.
3500kg Electric Coupling
The trailer includes a 50mm coupling rated to 3500kg.
The towing vehicle and towbar must be rated for the trailer’s actual loaded weight.
Compatible options are shown in the product
configuration section above.
What's Included
KKT-T126UL3500 tandem axle box trailer
3500kg ATM configuration
Hot-dip galvanised trailer body
Checker plate floor
70mm × 50mm SHS floor reinforcement
3600mm × 1830mm × 300mm internal trailer size
1800mm drawbar
150mm × 50mm RHS drawbar section
300mm high fully welded sides
Removable front drop-down gate
Removable rear drop-down gate
Full step-up platforms on both sides
Tie-down rails all around
Welded ladder rack holders
2 heavy-duty locking points on drawbar
Dual 50mm round solid axles with parallel bearings
12-inch electric drum brakes on all four wheels
60mm, 7-leaf, 7mm rocker roller suspension
15-inch wheels
195/15 tyres
50mm 3500kg electric coupling
8-inch swing-up jockey wheel
LED tail lights
7-pin flat trailer plug
Cage, other accessories, cargo, machinery, straps, registration and items not specifically listed in the selected configuration or quotation are not included.
The trailer has a maximum 3500kg ATM.
The stated tare weight is 820kg excluding cage.
The stated load capacity is 2680kg.
If a cage or additional accessories are fitted, the final tare weight may increase and available payload may decrease.
Final payload should be confirmed against the certified tare weight shown on the compliance plate.
Loads must be evenly distributed and properly secured before towing.
Cargo must be suitable for the trailer size and legal loaded weight.
Front gate, rear gate and loose items must be fully secured before towing.
A compatible electric brake controller is required in the towing vehicle.
The towing vehicle and towbar must be rated for the trailer’s actual loaded weight.
Lights, brakes, bearings, tyres, coupling, safety chain and suspension should be checked regularly.
Images may show optional equipment or a representative configuration.
Component appearance may vary slightly between production batches.
Warranty & Frequently Asked Questions
5-Year Structural Warranty
Applies to the main structural
construction of eligible brand-new
King Kong Trailers.
1-Year Component Warranty
Selected components including leaf
springs, lights, wiring and jockey
wheels are covered for one year.
Yes. Compatible cages, canvas covers, ladder racks, toolboxes, spare wheels, ramps and other options are shown in the configuration section above. Available options vary by product.
Registration is not automatically included unless it is selected in the configuration. Registration availability, administration charges and branch-related costs depend on the selected pickup location.
Where available, you can choose the deposit option in the purchase section. The remaining balance and payment requirements will be shown or confirmed before pickup.
Choose the branch that is most convenient for you. Product pricing, stock availability, registration services and transfer charges can vary between Sydney / Penrith, Central Coast / Gosford, Newcastle, Canberra / Queanbeyan and Dubbo.
Product images and interactive 3D models are provided for reference. Final details can vary depending on stock, production updates, selected accessories and the final configuration.
Eligible brand-new King Kong trailers include a five-year structural warranty. Selected components, including leaf springs, lights, wiring and jockey wheels, are covered for one year. Terms and conditions apply.
Need help choosing?
Confirm the right setup before you order.
Our team can help confirm the correct product,
ATM rating, accessories, registration option,
stock and pickup location for your requirements.
Compare key specifications across closely
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capacity and running-gear differences.
Swipe or scroll horizontally to compare all models.
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Construction material transport, Trade equipment transport
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Build Details
Built better where it counts.
A closer look at the construction details commonly found
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KKT-T126UL3500 - 12×6 Tandem Axle Hot-Dip Galvanised Box Trailer 3500kg ATM ·
12×6 · 3500kg ATM · Tandem Axle
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A trailer purchase should feel clear from the beginning.
Our role is to help remove uncertainty around
product choice, final setup and collection, so you know what
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Three stages. One clear process.
This section focuses only on the buying and handover
experience, without repeating specifications, warranty,
finance or branch information shown elsewhere.
01
Choose with clarity
Review the selected model, intended use and compatible
equipment before placing an order or requesting a quote.
→02
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Our team can verify the final setup and collection
requirements before you travel, reducing last-minute
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→03
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Receive a practical handover and clear guidance on the
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Customer Reviews
Trusted by customers who rely on their trailers.
Fifteen selected five-star customer reviews and ratings.
On desktop, the carousel moves three reviews at a time so
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Auto playing · 3 reviews per slide
“
Shawn and the team were great to deal with. This is the
second trailer I’ve purchased from them. Needless to say,
good quality.
Keegan ByrnesGoogle Review
“
Great service and availability. Shawn helped make sure
we had everything we needed with the trailer. Easy to
communicate with and super friendly.
PHYLLi DesignsGoogle Review
“
Exceptionally quick service and a very well-manufactured
trailer. I bought an 8×5 trailer with a ramp, high sides,
spare wheel and toolbox and got good value for money.
Connect3 Pabbly ConnectGoogle Review
“
Highly recommended to everyone. Good price with
fantastic service.
Dave LeeGoogle Review
“
Very helpful service and awesome build quality.
The trailers are heavy duty.
William ThomsonGoogle Review
“
Great service. Will definitely be using these guys
again in the future.
Alex FullerGoogle Review
“
The product is great and the team are very helpful.
Kevin FraserGoogle Review
“
Excellent service and great products. Highly recommended.
Rong LiGoogle Review
“
Thank you to the team for their excellent service.
Giorgios SiailisGoogle Review
“
Excellent business to deal with. Fred and Shawn were
very helpful.
