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Engine block undergoing precision rebuild at GAR Automotive Engineering, Randfontein
Heavy-Duty Precision

The Engine Rebuild Specialist.

GAR Automotive Engineering rebuilds petrol and diesel engines to OEM specification in Randfontein, Gauteng. Engineered to industry standards, built for reliability, power, and longevity.

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0+ Engines Rebuilt
0+ Years of Experience
0% Factory Spec Assembly
Mining and industrial operations served by GAR Automotive Engineering
Who We Are

A Randfontein Engine Rebuilding Workshop

Our workshop is equipped with advanced engineering machinery and operated by skilled technicians committed to delivering reliable, high-performance engine solutions that meet strict OEM standards.

We work with private vehicle owners, workshops, fleet operators, agricultural contractors, industrial operations, and mining sectors that depend on precision workmanship and dependable turnaround times.

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What We Do

Engineered For Extremes

We execute rebuilds at tolerances standard workshops can't measure. Every component is machined to exact OEM specifications, ensuring absolute reliability under the heaviest loads.

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Precision Machining

All components are machined to meet OEM standards. Exact tolerances. Maximum performance.

Testing and Detection

Every engine component undergoes a rigorous inspection and testing process before rebuilding begins.

Factory-Spec Assembly

Every engine is assembled according to manufacturer specifications, ensuring correct tolerances, and performance standards.

Dyno Verification

Full-load break-in simulation to validate torque output and thermal stability before dispatch.

How It Works

The GAR Lifecycle

A structured, uncompromising sequence to restore maximum power and longevity.

Tear-Down & Inspection

Every component is fully disassembled, chemically cleaned, and thoroughly inspected. No assumptions made.

Precision Machining

All engine components are machined to exact OEM standards. Restoring engine components for maximum performance, reliability, and longevity.

Dyno Testing & Delivery

Reassembled engines undergo load tests on our in-house dynos, verifying torque, power and pressure to meet OEM specifications.

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The GAR Facility

Inside the Machine

Precision engineering requires a pristine environment. Explore our rebuild facility where engines are restored to outlast the dirt.

Industries We Serve

Mining sector engine rebuilds
Mining
Agricultural sector diesel engine rebuilds
Agricultural
Commercial fleet and truck engine rebuilds
Fleet
Government fleet engine rebuilds
Government

Google Reviews

"Very Professional, Cost Worthy And Neat. I Will Definitely Recommend This Company And Will Surely Use Them Again In The Future!!"

Hardus Kraft

"Best service in automotive engineering work. Camshaft grinding to size"

Moses

"Very good service and friendly service"

Cassie Naude
Common Questions

Frequently Asked Questions

What does GAR Automotive Engineering do?
GAR Automotive Engineering is a specialist engine rebuilding and automotive machining workshop in Randfontein, Gauteng. We carry out full diesel and petrol engine overhauls, cylinder head reconditioning, block reboring and line boring, crankshaft grinding, conrod resizing, crack detection, injector pump repairs and dynamometer testing.
Where is GAR Automotive Engineering located?
Our workshop is at 12 Toyota Street, Aureus, Randfontein, Gauteng, South Africa. We are open Monday to Friday, 08:00 to 17:00, and can be reached on +27 11 693 2200 or at [email protected].
What warranty comes with a rebuilt engine?
Reconditioned and rebuilt engines are warranted against defects in workmanship for 6 months or 20,000 km, whichever comes first, provided the engine is used under normal operating conditions and serviced at the recommended intervals. The warranty does not cover damage caused by overheating, incorrect installation or misuse. Full detail is in our terms of service.
Which industries does GAR Automotive Engineering serve?
We work with private vehicle owners, independent workshops, fleet operators, agricultural contractors, industrial operations, government fleets and the mining sector — anyone who depends on precision workmanship and dependable turnaround times.
How large an engine can you dyno test?
Our in-house dynamometers test rebuilt diesel engines from 40 kW up to 2100 kW. Every reassembled engine is load tested to verify torque, power and oil pressure against OEM specification before it is dispatched.
How do I get a quote for an engine rebuild?
Send us the engine make, model and symptoms via the contact form, or phone +27 11 693 2200. All work follows a prior inspection and formal written quotation. Quotations are valid for 14 days, and if stripping the engine reveals additional work, a revised quotation is presented for your approval before we proceed.

Let's Rebuild It Right The First Time.

Engineered to industry standards. Built for reliability, power, and longevity.

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