BUILT TO LAST
Designed for Australian conditions
Engineered to withstand the harshest climates and built to last with premium materials, this product is crafted with care for everyday Australian life.
Order in the next 04h 23m for fast dispatch · Same-day from Sydney
40,000+ Australian customers · Australian-owned & operated
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Overview
Build your own construction icon
Celebrate a hero of the construction world as you build a replica version of the biggest Cat® dozer with this LEGO® TechnicTM App-Controlled Cat® D11 Bulldozer (42131) kit. This large set lets adults enjoy quality'me time’ focusing on their passion. Just like the real Cat® bulldozer, this model is built in modular sections. LEGO fans will love the new-for-October-2021 LEGO element—a large track that can be tightened and loosened. And the build is just the start! With many authentic features and functions packed into this model, there’s lots to discover.
Take control of your bulldozer model
Use the CONTROL+ app to operate and explore this heavy-duty machine. Use the app to drive and steer. The app delivers realistic movement as you raise, lower, and tilt the blade, or raise and lower the ripper and ladder.
Explore engineering
LEGO Technic buildable models feature realistic movement and mechanisms that let LEGO builders explore engineering concepts in an approachable and realistic way.
- Build a mighty construction vehicle packed with details with this huge LEGO® TechnicTM App-Controlled Cat® D11 Bulldozer 42131 model building set for adults.
- Enjoy a rewarding build, then explore the model’s many features and functions. See the new-for-October-2021 LEGO® track element that gives the bulldozer its realistic movement.
- Use the Control+ app to operate your bulldozer. Bring the bulldozer model to life as you drive and steer, then raise, lower, and tilt the blade, or raise and lower the ripper and ladder.
- Looking for the best gifts for yourself or any fan of Cat® bulldozers and other cool vehicles? This impressive construction vehicle set makes a top gift idea.
- This Cat® replica measures over 10 in. (26 cm) high, 22 in. (57 cm) long and 14.5 in. (37 cm) wide.
- Requires 6 x AA batteries (not included). The set also includes 2 x no. 15 motors, 2 x large motors, and 1 x hub.
- This Cat® model is meticulously detailed to replicate the full-sized model with authentic colours and graphics that Cat® enthusiasts will love.
- The LEGO® TechnicTM universe offers advanced buildable models for LEGO fans who are looking for an immersive building challenge.
- LEGO® TechnicTM components meet rigours industry standards to ensure they are consistent, compatible, and connect reliably every time—it’s been that way since 1958.
- LEGO® TechnicTM components are dropped, heated, crushed, twisted, and analysed to make sure they meet strict global safety standards.
Specifications
Specifications will vary by product. Please refer to the product description above or contact us before ordering if you need a specific measurement.
Shipping & Returns
Shipping
Orders are dispatched from our Sydney warehouse within 1–2 business days of payment. Delivery times from Sydney:
- NSW & ACT: 2–5 business days
- VIC & QLD: 2–7 business days
- SA: 3–8 business days
- TAS: 4–10 business days
- WA: 5–10 business days
Tracking is provided on dispatch. Remote postcodes may incur additional fees.
30-day change-of-mind returns
We offer a 30-day change-of-mind return on select unopened products in original packaging (excluding health/safety items or bulk purchases). Email us within 30 days of delivery to start a return.
A restocking fee of 7–25% applies, plus return postage (unless approved otherwise). Customer-incurred postage costs are non-refundable without prior approval.
Faulty or damaged on arrival
If your product arrives faulty or damaged, contact our support team with your order number, photos/videos of the fault, and the original packaging. Do not return items without a return authorisation.
Warranty
12-month Australian warranty on this product unless noted otherwise. The warranty covers manufacturing defects under normal use.
The warranty does not cover:
- Damage caused by misuse, incorrect installation, or modification.
- Damage during delivery (claim under shipping policy instead).
- Normal wear and tear.
To claim warranty: contact our support team with your order number, photos/videos of the fault, and a brief description. We will assess the claim and offer a replacement, repair, or refund as appropriate.
AUTOMATION
Smart automation, set and forget
Time-saving design with intuitive controls. Set it once and let it work for you, freeing up your time for what matters most.
AUSSIE SUPPORT
Backed by genuine Australian support
Local warranty, fast dispatch from Sydney, and Australian customer service Mon-Fri. We are a real business with real people, just a phone call away.
Complete the set
Frequently bought together
Hand-picked add-ons from the same category — save when you bundle.
Total price
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Why Aussies Shop With Auzzi
A registered Australian business with real local support, transparent pricing, and fair returns.
Australian Business
ABN 79 670 758 782. Registered in Australia.
Fast Australia-Wide Dispatch
Ships fast from our Sydney warehouse.
Secure SSL Checkout
Card, PayPal, Apple Pay, Google Pay accepted.
30-Day Returns
Change-of-mind returns within 30 days.