Kenworth road train at sunset
Heavy diesel specialists

Built for
the long haul.

Fleet servicing, heavy vehicle repairs, and preventative maintenance programs across Perth and regional Western Australia.

500+
Vehicles serviced
98%
Client retention
24/7
Breakdown support
Brands we work with

Fully insured

Public liability cover on every job, every site

Workcover compliant

Registered employer — crew fully covered

Certified mechanics

Certified and qualified diesel mechanics across heavy fleet

Redline fleet lineup
Your fleet.
Our priority.

Redline Mechanical Group is a heavy diesel specialist based in Western Australia. We service trucks, road trains, trailers, earthmoving equipment, and heavy vehicles for fleet operators across the Perth metro area, the Wheatbelt, and regional WA.

We're not a one-size-fits-all shop. Heavy diesel is all we do, and we do it properly. From scheduled servicing through to full engine rebuilds, our goal is to be your single point of contact for everything mechanical — so you never need to chase around for another workshop.

We built this business on a simple idea: the relationship between a fleet operator and their mechanic matters. When you trust the person working on your trucks, everything runs smoother — the communication, the turnaround, the results. That's what we're here to build.

Built on trust.

I started Redline Mechanical Group because I saw a gap in how heavy vehicle operators were being looked after. Too many workshops treat fleet work like a transaction — truck comes in, invoice goes out, and the customer never really knows what happened in between.

I wanted to do it differently. Every customer deserves to know exactly what's being done to their truck, why it's being done, and what it's going to cost. That's not a sales pitch. It's just how I was raised to do business.

I grew up in country Victoria and did my time there as a diesel mechanic. From there I headed up to Queensland, working across the Bowen Basin, then over to the Pilbara, and I'm now based here in Western Australia. Along the way I've worked on everything from trucks and road trains to earthmoving gear and mining equipment — and I've seen firsthand what happens when maintenance gets neglected and corners get cut.

Keeping a fleet at a high standard of maintenance isn't as hard as people think. It comes down to the right systems, the right documentation, and a mechanic who actually works alongside you — not just for you. That's the goal at Redline. We work with our customers to get their fleet and trucks to a standard where almost every repair is predictable and breakdowns are kept to an absolute minimum.

Whether it's a scheduled service on a Kenworth or pulling the head off a CAT dozer in the middle of the Wheatbelt, the standard is the same — professional work, honest communication, and no surprises.

Tyler Bonacci

Founder & Lead Technician

Tyler Bonacci — Founder of Redline Mechanical Group
Komatsu excavator at golden hour
Prevention
first.
Stop breakdowns before they start

Most workshops wait for things to break. We don't. Redline Mechanical Group is built around preventative maintenance — the right systems, the right documentation, and the right service schedules to keep your fleet running and eliminate unplanned downtime.

Breakdowns cost you more than just a repair bill. They cost you drivers sitting idle, loads running late, and customers losing confidence. We build maintenance programs that catch problems early — so your trucks stay on the road where they belong.

Scheduled

Every service tracked
and planned ahead

Documented

Full service history
and reporting

Compliant

Manufacturer specs
always followed

Less downtime

Fewer breakdowns,
more uptime

Our standards.
01

Transparency

You know the cost before we start. Labour rates, part margins, scope of work — all confirmed upfront. No hidden charges. No surprises on the invoice. Ever.

02

Professionalism

Clear communication, honest assessments, and work completed to the highest standard. We explain what's wrong and what we're doing about it — in plain English.

03

Presentation

Matching uniforms, clean vehicles, consistent branding across everything. How we show up to your site reflects exactly how we work on your trucks.

04

Prevention first

Our core focus. With the right systems, documentation, and maintenance schedules, most breakdowns can be prevented before they happen.

Our services.
Scheduled servicing
Core service

Scheduled servicing

Routine fleet maintenance and logbook servicing to manufacturer specs. We track your schedule so your vehicles stay compliant and on the road.

Breakdowns and repairs
Repairs

Breakdowns & diagnostics

Engine, drivetrain, brakes, electrical fault-finding, and general repairs. We find the problem, explain it clearly, and fix it right the first time.

Pre-purchase inspections
Inspections

Pre-purchase inspections

Thorough mechanical inspection before you buy. We check everything and give you a clear, honest report so you know exactly what you're getting.

Ready to put your fleet
on a maintenance plan?

We work with fleet operators to build custom servicing schedules that reduce downtime and eliminate surprise repair bills.

Talk to us today
Our pricing.
Labour rate$130 - $160 + GST
Per hour, depending on the job. Quoted before we start.
PartsOEM and quality aftermarket parts. Customer-supplied parts accepted by arrangement. All part costs itemised on your invoice.
Callout feesMay apply for travel outside Perth metro. Always confirmed before we book the job.
QuotesValid for 14 days. If we find additional work during the job, we call you for approval before we proceed.
Warranty12 months / 20,000km workmanship warranty. Parts covered by manufacturer warranty — we handle the claim for you.
Get in touch.

Phone

0429 020 122
Available 7 days

Email

admin@redlinemechanicalgroup.com

Location

Port Kennedy, WA 6172
Servicing Perth metro & regional WA

Hours

Mon - Fri: 6:00am - 6:00pm
Sat: 7:00am - 3:00pm
Emergency callouts 24/7