Alternator for Caterpillar 304C CR, Clark & Mitsubishi S4L - 12V 50A
Alternator for Caterpillar 304C CR, Clark & Mitsubishi S4L - 12V 50A
SKU:400-48084
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Alternator for Caterpillar 304C CR, Clark & Mitsubishi S4L - 12V 50A
Fits Caterpillar 304C CR backhoes, Clark equipment and Mitsubishi S4L, SL, SQ and SS engines
This 12-volt, 50-amp alternator is a complete replacement unit built to the output and mounting specification of the original equipment fitted to the Caterpillar 304C CR backhoe, comparable Clark equipment, and Mitsubishi S4L, SL, SQ and SS industrial engines. It is manufactured by Mitsubishi, the original supplier for this application, and replaces the 32A68-00300 series and Caterpillar 280-3787 units.
It is supplied complete with a single-groove V-belt pulley (73mm outside diameter, 13mm belt width), matching the factory setup exactly. The L-terminal carries output, the same as the original unit. Each unit is tested for correct output and rotation before it is dispatched.
Key Features
- 12-volt, 50-amp output to factory specification
- Internal regulator, internal fan (IR/IF) configuration
- Single-groove (1-V) pulley, 73mm OD, 13mm belt width
- L-terminal carries output, matching the original unit
- Direct replacement for Caterpillar 304C CR, Clark and Mitsubishi S4L-engined machines
- Cross references to Caterpillar 280-3787 and Mitsubishi 32A68-00300 / 32A68-00301 / 32A68-00302
Technical Specs
| Specification | Detail |
|---|---|
| Voltage | 12V |
| Amperage | 50A |
| Rotation | Clockwise (CW) |
| Regulator | Internal (IR) |
| Fan Type | Internal (IF) |
| Pulley Type | Single-groove V-belt (1-V), 73mm OD |
| Belt Width | 13mm |
| Manufacturer | Mitsubishi |
| Lester Number | 12562 |
Vehicle Fitment Guide
Years shown are the overall coverage span for this part. Please confirm against the OEM part number on your original unit before ordering.
| Make & Model | Years |
|---|---|
| Caterpillar 304C CR Backhoe / Mini Excavator | Not specified |
| Clark Equipment | Not specified |
| Mitsubishi S4L Engine | Not specified |
| Mitsubishi SL Engine | 1992-1993 |
| Mitsubishi SQ Engine | 1992-1993 |
| Mitsubishi SS Engine | 1992-1993 |
OEM Part Number Cross Reference
Aftermarket replacement. OEM part numbers are listed for reference only.
| Part Number | Manufacturer / Brand |
|---|---|
| 280-3787 | Caterpillar |
| 32A68-00300, 32A68-00301, 32A68-00302, A7T02077, A7T02077C | Mitsubishi |
| 12562 | Lester |
Frequently Asked Questions
Will this alternator fit without modification?
Yes, it is a direct bolt-in replacement, matching the mounting and pulley configuration of the original unit.
How do I confirm it is right for my machine?
Check the number on your existing alternator against the cross reference table above - Caterpillar 280-3787 and Mitsubishi 32A68-00300 are the usual originals for this fitment.
What's included?
You receive one complete alternator unit, ready to fit - no additional brackets or pulleys are required.
How do I know my old alternator has failed?
Common signs include a charge warning light staying on, a flat or slowly draining battery, or no output reading at the battery terminals with the engine running.
Does this alternator come with a warranty?
Yes, every unit is covered by our standard 12-month warranty.
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