Genuine Bosch 24V 55A Universal Heavy-Duty Alternator (BXU2455A)
Upgrade or restore your 24-volt electrical charging system with the Bosch BXU2455A Universal Alternator. Engineered by Bosch to meet rigorous OEM standards, this heavy-duty, internally regulated alternator provides reliable current delivery for custom 4x4 builds, commercial vehicles, trucks, dual-alternator kits, and industrial equipment operating in harsh environments.
Key Features & Highlights
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Genuine Bosch Engineering: Built with high-grade copper windings and durable internal components for ultimate heat resistance, low noise, and maximum service life.
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Universal 24V Charging: Delivers a stable 24 Volts / 55 Amps of charging output. Ideal for custom dual-battery setups, external LED lighting, winches, and refrigeration setups.
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Twin-Leg J180 Style Mount: Features a standard twin-leg mounting design (65mm / 66mm inside leg) for broad compatibility with custom brackets and universal installations.
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Single-Groove Pulley Pre-Fitted: Comes equipped with a 64mm / 65mm single V-belt (A-Section) pulley and an internal voltage regulator.
| Feature | Details |
| Brand | Bosch |
| Part Number | BXU2455A (or BXU2455) |
| System Voltage | 24V DC |
| Amperage Output | 55 Amps |
| Mounting Type | Twin Leg / J180 Style (66mm Inside Feet) |
| Pivot & Adjuster Hole | M10 x 1.25 |
| Mounting Center-to-Center | 187mm |
| Pulley | 64mm Outside Diameter / Single V-Belt (A-Section) |
| Regulator Type | Internal Regulator (RP251 / IR200 Plug) |
Common Vehicle & Custom Applications
This unit is a universal-fit 24V alternator widely used for:
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Custom 4x4 Off-Road Builds: Frequently used in Nissan Patrol (GQ/GU) and Toyota LandCruiser (70/80/100 Series) 24V secondary alternator conversions (e.g., Marks 4WD dual-alternator high-mount kits).
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Trucks & Commercial Fleet: Fits various 24V commercial trucks, including Iveco, Hino, Isuzu, and Mitsubishi Fuso models requiring a J180 twin-leg mount.
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Industrial & Agricultural Equipment: Farm tractors, stationary engines, generators, and heavy marine/machinery applications.
OE & Cross-Reference Part Numbers
Bosch Part Numbers:
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BXU2455A / BXU2455
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0-120-484-316 / 0120484316
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0-120-484-031 / 0-120-484-033 / 0-120-484-037 / 0-120-484-039
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9-120-061-100 / 9-120-061-105