Australian-made quality

Caterpillar compatible exhaust upgrades

  • Enhance Caterpillar productivity and reduce downtime
  • Save on Total Cost of Ownership
  • Class-leading upgrades for Caterpillar exhaust systems
  • Proven durability and strength
  • 100% compatible Caterpillar replacement exhausts
  • In-stock commitment for key Caterpillar assets

Your Caterpillar assets can benefit from a strategic upgrade to Aletek exhaust systems. In addition to extending exhaust lifespan and maximising durability, we design our range to enhance OEM fatigue zones. You can depend on us to improve the efficiency of your fleet of Cat dozers, excavators, haul trucks, and other assets.


Strategic benefits

  • Reduce Total Cost of Ownership (TCO) by a conservative 30%
  • Pipes are fully interchangeable with OEM, no site welding required
  • Engine pipe ends won’t crack with our solid machined flanges
  • Engineered and built in Australia
  • Inventory management for peace of mind

Our meticulous in-house engineering and precision manufacturing provide you with peace of mind and hassle-free installation. One of our specialties is extracting more from your mining machinery and minimising downtime. Aletek’s replacement guarantee protects your investment in our Caterpillar replacement exhausts.

Compatible with Caterpillar exhaust parts

Exhaust parts from Aletek are interchangeable with Caterpillar parts. As a result, you have greater flexibility with your choice of supplier and a contingency in case of parts shortages. You will also benefit from legendary Aletek exhaust quality with significant upfront savings. We carry a complete line of Caterpillar-compatible engine pipes, bellows, mufflers, tailpipes, clamps, brackets, and accessories.

Dual-Wall exhausts to suit Caterpillar

A dual-wall exhaust provides a robust solution to solve specific problems. These issues include reducing fire risks, extending durability, and simplifying maintenance.

Asset-based exhaust showcase

You can improve Caterpillar assets’ uptime, durability, and productivity by upgrading to Aletek exhausts. We have provided a few examples of our showcase solutions below.

  • Dozers:
    • CAT D10T (C27)
    • CAT D11T (C32)
  • Excavators:
    • CAT 6040 (C32)
    • CAT 6060 (3512 & QSK45)
  • Haul Trucks:
    • CAT 777D (3508)
    • CAT 785 (3512) series
    • CAT 789 (3516) series
    • CAT 793 (3516) series
    • CAT 797F (C175-20) and more

On a Bowen Basin mine site, parts of our exhaust upgrade for a Cat 793F have been in use for six years. Our solution has proven to be resilient and durable under corrosive conditions.

OEM Swappable


When replacing Caterpillar exhaust parts, choosing the best parts is essential. Aletek produces high-quality exhaust components that offer numerous improvements over OEM components. In-house design, proven processes, and quality Australian fabrication underpin our product designs. We’re ready to take on any exhaust problems you have.


We offer straight and elbow pipes with flanged ends that bolt together. Aletek uses 2mm reinforced steel for pipe construction. The inner wall of dual-wall components is protected from failure by strategically located vent ports. Aletek logo badges assist with correct installation by pointing in the airflow direction.


We construct our Caterpillar muffler upgrades from 3mm steel and use high-temperature powder coating for abrasion resistance and corrosion protection. For installation, we provide reinforced brackets and mounting plates. Aletek logo badges indicate airflow direction.

Aletek Pipe Bellows

In addition to extending product durability, Aletek pipe bellows simplify installation. Our specialised bellow upgrades for 793F and 797F trucks feature convoluted steel for durability and easy installation without alignment tools.

Clamps & Install Hardware

Aletek stocks V-band clamps and installation hardware to support our Caterpillar replacement exhausts. Additionally, we stock universal components, straps, and gaskets for exhaust part upgrades or complete exhaust kit installations.


We offer exhaust upgrades for Caterpillar dozers, including D9T (C18), D10T (C27), D11R (3508B), and D11T (C32). In addition, we offer a dual-wall exhaust upgrade for the D11T.


Aletek exhaust upgrades improve Caterpillar excavators. A popular kit is our 6040 dual-wall package. We also offer numerous 6060 exhaust upgrades, including an OEM replacement, dual-wall, and exhaust silencer muffler.


For less downtime, upgrade your Caterpillar graders with Aletek exhausts. Our flagship exhaust solutions include options for 14M (C11), 16H (C13 & 3169) and 24M (C18).

Haul Trucks

We’re experts at upgrading Caterpillar haul truck exhaust systems. Aletek’s replacement exhausts include the 777, 785, and 789 models. We also support a vast range of larger assets, including 793, 793D XQ, 793F, 793F XQ, 794A and 797F. Ask about our dual-wall and sound suppression solutions.

The Aletek Advantage

Our Commitment

As engineers and fabricators, we take our jobs seriously. Design team members are acoustics, research and development, and 3D design experts. Matching OEM exhaust paths is ensured by the use of pipe jigs.


Is there a project you need help with?
Maybe you want to upgrade your fleet to reduce downtime. We’ve got dedicated Business Development Managers to help you meet your onsite goals. Get in touch to learn more and ask about our site-specific parts catalogues.

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