Heavy Equipment & Industrial Alternators

Reliable Alternators for Construction, Mining & Industrial Applications

TOSOG supplies high-performance alternators specifically engineered to deliver stable, consistent electrical power, extended operational lifespan, and dependable charging performance across a wide range of demanding applications. Our alternators are suitable for earthmoving equipment, mining machinery, construction vehicles, commercial trucks, generators, and industrial diesel engines, where reliable electrical output is critical to machine uptime and productivity.

Each alternator is precision-manufactured using heavy-duty internal components, high-quality windings, robust bearings, and advanced voltage regulation systems to ensure reliable performance under continuous load. They are designed to maintain optimal charging efficiency even during prolonged operation, frequent engine starts, and fluctuating electrical demand from onboard systems such as ECUs, sensors, lighting, air-conditioning, and auxiliary equipment.

Our alternators are built to meet or exceed OEM specifications, ensuring full compatibility in terms of mounting dimensions, pulley alignment, voltage output, amperage rating, and electrical connections. This makes them ideal for new installations, direct replacements, engine rebuilds, and preventative maintenance programs, providing a seamless fit without the need for modifications.

Whether your operation runs in extreme dust, high ambient temperatures, constant vibration, moisture exposure, or sustained high-load conditions, TOSOG alternators are engineered to perform reliably. They are rigorously tested to withstand harsh working environments commonly found in mining sites, construction projects, quarries, plant hire fleets, and industrial facilities, helping reduce electrical failures, prevent unexpected downtime, and protect critical engine and electronic components.

By choosing TOSOG alternators, fleet owners and maintenance teams gain a cost-effective, durable, and dependable power solution that supports long service intervals, improves machine reliability, and ensures consistent performance in the toughest operating conditions.

What Is an Alternator & Why It Matters

An alternator is a critical engine-driven electrical component responsible for:

• Charging the battery

• Powering electrical systems

• Maintaining stable voltage during machine operation

A failing alternator can result in:

• Battery drain and hard starting

• Sensor and ECU faults

• Engine shutdowns

• Costly downtime and lost production

TOSOG alternators are designed to prevent these failures, ensuring consistent output even under extreme operating conditions.

TOSOG Alternator Range

We supply new, OEM-equivalent, and refurbished alternators for a wide range of machines and engines.

Available Alternator Types

• 12V Alternators

• 24V Alternators

• High-Output Alternators

• Heavy-Duty Mining Alternators

• Brush & Brushless Alternators

• Internal & External Regulator Alternators

Each alternator is tested for voltage output, load capacity, and durability before supply.

Supported Equipment & Applications

Earthmoving & Construction Equipment

• Excavators

• Wheel loaders

• Backhoe loaders

• Dozers & bulldozers

• Motor graders

• Skid steers

Mining & Quarrying Equipment

• Mining loaders

• Drill rigs

• Haul trucks

• Crushing and screening plants

Industrial & Commercial Applications

• Generator engines

• Industrial diesel engines

• Forklifts

• Agricultural machinery

• Workshop and plant equipment

Supported Brands

TOSOG alternators are compatible with major global OEM brands, including:

• Caterpillar (CAT)

• Komatsu

• Hitachi

• Volvo

• Liebherr

• Doosan

• Hyundai

• JCB

• Perkins

• Cummins

• Deutz

• Isuzu

• Yanmar

If you have an engine model or alternator part number, our team can cross-reference it quickly.

Why Choose TOSOG Alternators?

OEM-Equivalent Performance

Our alternators are built to match OEM electrical output, mounting dimensions, and connector specifications.

Heavy-Duty Construction

Designed to withstand:

• Continuous vibration

• Dust and debris

• High ambient temperatures

• Moisture and harsh working environments

Reduced Downtime

Reliable charging performance prevents:

• Electrical system faults

• ECU errors

• Battery failures

Flexible Supply Options

• New alternators

• Cost-effective refurbished units

• Fast sourcing for discontinued or hard-to-find models

Local Support

Quick turnaround times and expert support across South Africa.

Alternator Failure Symptoms to Watch For

• Battery warning light on dashboard

• Dimming or flickering lights

• Low voltage fault codes

• Electrical accessories malfunctioning

• Unusual whining or grinding noises

• Frequent battery replacements

Early replacement prevents major electrical system damage.

TOSOG Expert Alternator Tips

1. Confirm Voltage & Amperage

Using the incorrect output rating can damage wiring and electronic components.

2. Inspect Drive Belts

Loose or worn belts reduce alternator efficiency.

3. Check Grounds & Connections

Poor grounding causes voltage drops and false failures.

4. Clean Regularly

Dust buildup restricts cooling and shortens alternator lifespan.

5. Choose Tested Refurbished Units

TOSOG refurbished alternators undergo full inspection, bearing replacement, regulator testing, and load testing.

Frequently Asked Questions (FAQ)

Do you supply alternators for older machines?

Yes. We source alternators for both current and discontinued models.

Are your alternators OEM or aftermarket?

We supply OEM-equivalent and high-quality aftermarket alternators, all tested for performance and reliability.

Can you match alternators using engine numbers?

Yes. Provide the engine model, serial number, or old alternator part number.

Do alternators come with warranty?

Yes. Warranty terms depend on whether the unit is new or refurbished.

How fast is delivery?

We offer fast nationwide delivery across South Africa, subject to availability.