STRUCTURAL TRANSPORT REPAIRS
LT400
Strengthen Your Fleet with Certified LT400 Repairs You Can Trust
Every heavy vehicle plays a critical role in your business, and staying compliant with New Zealand’s strict LT400 standards is essential. When structural repairs or modifications are needed, you can’t afford delays or uncertainty. At Ten4 Engineering, we provide certified LT400 repairs that ensure safety, compliance, and reliability keeping your fleet on the road and working for you.
Built for Safety,
Certified
for Compliance
Whether it’s chassis fatigue, cracked frames, or structural modifications, unresolved issues can put your heavy vehicle out of service and out of compliance. Our team specialises in LT400-certified structural transport repairs, bringing the same level of engineering precision and durability that fleet operators rely on to stay road-legal.
We don’t just patch over problems we address the root cause and deliver certified repairs that last, using robust materials and proven methods that meet New Zealand Transport Agency LT400 standards.
What We Offer:
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Chassis & subframe repairs – Restore structural strength and meet LT400 compliance requirements.
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Load-bearing modifications – Ensure your vehicle can safely handle operational demands
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Frame straightening & reinforcement – Correct damage, prevent further stress cracks, and extend vehicle life.
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Custom compliance solutions – From small adjustments to major structural changes, all certified to NZTA standards.
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Certified LT400 documentation – Full certification for modifications and repairs to keep your vehicle road-legal.
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Built to Withstand New Zealand Standards
New Zealand’s tough operating conditions put every heavy vehicle to the test. From long-haul freight runs to demanding off-road worksites, your fleet needs repairs that aren’t just strong they’re certified for safety and compliance. Our LT400-approved processes are designed to keep you on the road, avoid costly downtime, and give you confidence every journey is fully legal.
Why Choose Us?
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Transport engineering expertise – Over 25 years in heavy transport fabrication and repairs.
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Certified, long-term solutions – No shortcuts, no temporary fixes—only fully compliant, documented repairs.
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Minimal downtime – We work efficiently to get your vehicles back on the road fast.
- Trusted by fleets – Operators rely on us for structural work that lasts and keeps them compliant.

Book Your Assessment Today
Don’t wait until a minor crack turns into a major issue. Contact us now for a structural inspection or quote, and keep your motorhome ready for the road ahead.