Alternator for Volvo Construction & Marine Applications 1971-2004
Alternator for Volvo Construction & Marine Applications 1971-2004
SKU:400-40007
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Alternator for Volvo Construction & Marine Applications 1971-2004
Fits Volvo Construction Equipment, Heavy Trucks, Buses and Volvo Penta Marine Engines
This 24-volt, 55-amp alternator is a direct aftermarket replacement built to OEM specifications for Volvo construction, industrial and marine applications. It uses an internally regulated (IR) charging system with an externally fan-cooled (EF) design, matching the fit and output of the original equipment.
Built as a fit-and-function equivalent to the original unit, it covers a wide span of Volvo construction machinery, heavy trucks and buses as well as Volvo Penta AD31-series marine engines, and is tested for reliable charging performance under sustained duty cycles.
Key Features
- 24-Volt, 55-Amp charging output
- Internally Regulated (IR) design
- Externally fan-cooled (EF)
- Direct OEM fit and finish, no modification required
- 12-month warranty as standard
Technical Specs
| Specification | Detail |
|---|---|
| Voltage | 24V |
| Amperage | 55A |
| Rotation | Clockwise (CW) |
| Regulator | IR (Internally Regulated) |
| Fan Type | EF (Externally Cooled) |
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 |
|---|---|
| Volvo Buses B10B, B10M, B10R, B12, B6F, B7F | 1986-2006 |
| Volvo Heavy Trucks F10, F12, F16, FL, N, NL series | 1985-2006 |
| Volvo Loaders L50, L70, L120 series | 1986-2001 |
| Volvo Excavators EC390, EC450, EC650 | 1996-2001 |
| Volvo Penta Marine AD31-series Engines | 1986-2004 |
OEM Part Number Cross Reference
No OEM cross reference is published for this part.
Frequently Asked Questions
Will this alternator fit without modification?
Yes. This unit is a direct fit-and-function replacement, using the same mounting, pulley type and electrical connections as the original Volvo equipment.
What's included?
The alternator unit only. Pulley and bracket are as fitted; existing wiring and drive belt are reused from your original unit.
How do I know my alternator has failed?
Common signs include a charge/battery warning light staying on, dimming lights, slow cranking, a flat battery despite normal use, or a whining/grinding noise from the unit.
Does this unit suit both construction machinery and Volvo Penta marine engines?
Yes, this 24-volt alternator is used across Volvo construction plant, heavy trucks and buses, as well as Volvo Penta AD31-series marine engines - always confirm against your original part number before ordering.
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