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New 24V 50A Alternator for Caterpillar 320C 321C 323D Excavator 0R-7561 212-8561

New 24V 50A Alternator for Caterpillar 320C 321C 323D Excavator 0R-7561 212-8561

400-48046

£330.00 GBP
£396.00 GBP £330.00 GBP
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Caterpillar Alternator

Fits 320C, 320C L, 320D, 320D GC & More (50 Amp)

Keep your Caterpillar running with this 50 Amp 24V replacement alternator. Designed as a direct-fit replacement for the excavator listed below, it delivers reliable charging for standard and accessory electrical loads.

This unit features an external fan (EF) and an internal regulator (IR), and is supplied with a S12 pulley already fitted.

DIRECT FIT: Replaces Arrowhead AMT0279 — no modification required on the machines listed below.

Key Features

  • ✔High Capacity: 50 Amps of charging output.
  • ✔Direct Replacement: Replaces Arrowhead AMT0279.
  • ✔Pulley Fitted: S12 pulley installed and ready to fit.
  • ✔Robust Design: EF fan. IR regulator.
  • ✔Quality Assured: New aftermarket unit, 12 month warranty.

Technical Specs

Voltage: 24 Volts
Amperage: 50 Amps
Rotation: CW (Clockwise)
Pulley: S12
Regulator: Internal (IR)
Fan Type: External (EF)
Clock: 4
SKU Reference: 400-48046

Vehicle Fitment Guide

Make Equipment Type Models Years
Caterpillar Excavator 320C, 320C L, 320D, 320D GC, 320D L, 320D LN, 320D LRR 1999–2005

OEM Part Number Cross Reference

Arrowhead AMT0279, 400-48046, A4TU3599
Caterpillar 10R-7561, 212-8561
J&N Electrical Products 400-48046
Lester 20111
Mitsubishi A4TU3599
Mitsubishi Industrial 34368-03800

Frequently Asked Questions

Will this fit my Caterpillar 320C?

Yes — the 320C appears in the fitment guide above. Check your existing part number against the cross reference table to confirm.

Is this a 50 Amp alternator?

Yes, this is a 50 Amp 24V unit with an IR regulator.

Is the pulley included?

Yes, a S12 pulley is pre-installed.

Is this new or remanufactured?

This is a brand new aftermarket unit — not a remanufactured core.

Note: Please verify your machine's serial number or existing part number to ensure compatibility.
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Shipping calculated at checkout. Free shipping over £150. Terms apply