20A Alternator for Yanmar 3D82E 3D84E / Komatsu PC12R-8 PC15R-8
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Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
| Application | Fitment Notes |
|---|---|
| Komatsu PC12R-8 / PC15R-8 | Verify engine and alternator connector/mounting. |
| Yanmar 3D82E / 3D82AE / 3D84E / 3D84N engines | Verify pulley, mount spacing and output connection. |
Product Overview
The alternator keeps the battery charged and supplies electrical power while the engine is running. Low output can cause repeated dead batteries, dim lighting or charging-system warnings.
Key Features & Performance
- 20A alternator output class
- For compatible Yanmar 3D82E/3D82AE/3D84E/3D84N engine applications
- Commonly sold for Komatsu PC12R-8 and PC15R-8
- Compact industrial-engine charging unit
Common Reasons for Replacement
- Battery does not stay charged
- Low charging voltage with engine running
- Noisy alternator bearings or damaged pulley
Technical Specifications
- Rated Output: 20A
- Part Type: Engine Alternator
Frequently Asked Questions
How do I confirm fitment? Match the old alternator's amperage, mounting ears, pulley and electrical plug/terminal arrangement. Engine model alone is not enough to confirm fitment.
Is this an OEM part? This listing is for a replacement part. Brand names and OE/reference numbers are used to identify fitment unless the listing specifically states that the item is genuine OEM.