Premium Quality Replacement for 320C Series Excavators
This 4Drive / Aftermarket alternator is a heavy-duty, direct-fit replacement designed specifically for Caterpillar 320C series excavators. Engineered to provide reliable 24-volt power output at 50 amps, this unit ensures your electrical system remains fully charged under the most demanding site conditions.
RELIABILITY: Manufactured with high-temperature epoxy and top-tier bearings to meet or exceed OEM 0R-7561 specifications for industrial longevity.
Key Features
✔ Brand New Unit (No Core Charge)
✔ Direct fit for Cat 3066 & C6.4 Engines
✔ 80mm OD Mounting Compatibility
✔ Precision Internal Regulator (IR)
Technical Specs
Voltage
24V
Amperage
50A
Regulator
Internal (IR)
Fan
External (EF)
Mounting
80mm OD
Polarity
Negative Ground
Compatibility / Fitment Guide
Machine Type
Caterpillar Models
Engine
Excavator
320C, 320C L, 320C LN, 320C S
Cat 3066
Excavator
320D, 320D L, 320D GC
Cat C6.4
Excavator
321C, 323D L
Cat 3066 / C6.4
OEM Cross Reference
Caterpillar
0R-7561, 10R-7561, 212-8561, 5I-7982
Mitsubishi
A4TU3599, A4TUF099, 34368-03800
Lester
20111
Arrowhead
400-48046, AMT0279
Questions & Answers
Is this a genuine Caterpillar part?
This is a premium-grade aftermarket replacement unit from 4Drive, manufactured to match the original specifications and performance of the Caterpillar 0R-7561 alternator.
How do I know if it is compatible?
The most reliable way to confirm fitment is to match the part number on your original unit with the cross-reference list above (specifically 0R-7561 or 212-8561).
What does "80mm OD" refer to?
This indicates the specific mounting frame size and lug spacing, identifying this unit as the correct high-output version for the Mitsubishi-type systems used on Cat 320C machines.
Note: Please verify your original part number at 4drive.co.uk against the references above before purchasing.
