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SKU:
NLT2T03955
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Alternator 12V 20A AM877557 for John Deere 790, 990, 2243, F912 and F915
$156.29
In Stock
$156.29
Sale price
$156.29
Regular price
This 12V, 20A alternator is intended for compatible John Deere equipment using reference AM877557. It supplies charging current to the battery while the engine operates.
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
John Deere 790, 990, 2243, F912 and F915 plus other applicable equipment.
Additional cataloged applications (confirm machine serial and configuration):
- John Deere: 790, 990, 2243, F912, F915, X595, X740, X744, X748
Product Overview
The alternator keeps the battery charged as the engine operates. A failed regulator or worn internal components can cause low system voltage, discharged batteries or warning lights.
Key Features & Performance
- Component: Alternator 12V 20A
- Purpose: Recharges the battery and supplies electrical power while the engine runs.
- Primary reference: AM877557
OE / Reference Numbers
- AM877557
- MIA10338
Common Reasons for Replacement
Battery does not charge, low voltage while running or noisy alternator bearings.
Fitment & Installation Notes
Match AM877557 or its Deere substitute MIA10338, 12V 20A output, pulley and electrical terminals.
Frequently Asked Questions
Is this a genuine OEM part? No. This listing is for a replacement part unless explicitly described as genuine OEM. Reference numbers identify the intended application.
How do I confirm the right replacement? Match AM877557 or its Deere substitute MIA10338, 12V 20A output, pulley and electrical terminals.
Part Summary
keywords: Alternator 12V 20A, AM877557, John Deere Alternator 12V 20A, Alternator 12V 20A AM877557 for John Deere 790, 990, 2243, F912 and F915, Alternator 12V 20A replacement, alternators
Brand names, model numbers, and reference part numbers are used for identification and compatibility purposes only. Verify the original component, dimensions, and application before purchase.