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12_5dff4fa7-f01d-44e6-af93-9dca01bd5ad5 - Northline Parts

20A Alternator for Yanmar 3D82E 3D84E / Komatsu PC12R-8 PC15R-8

SKU: NLT2T03952
$156.29 In Stock
$156.29
Sale price  $156.29 Regular price 
Ships for free in 2–4 business days.
20-amp charging alternator for compatible Yanmar 3D82/3D84 engine applications used in Komatsu PC12R-8 and PC15R-8 mini excavators.
Estimated delivery between
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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.

Compatible equipment / model
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.

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