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SKU:
NLT2T03954
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Alternator YM129150-77202 for John Deere Tractors and Mowers
$156.29
In Stock
$156.29
Sale price
$156.29
Regular price
Replace a failed charging-system alternator on compatible John Deere tractors, mowers and other Yanmar-powered equipment using reference YM129150-77202. Compare the original alternator configuration before purchase.
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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
| Equipment / Model | Compatible Models / Applications |
|---|---|
| John Deere compact tractors | 670, 770, 790, 870, 970, 990, 1070, 2210, 2305, 2320, 2520, 4010, 4100, 4110, 4115 |
| John Deere mowing equipment | X595, X700; select X-series and F-series machines using the specified charging unit |
| Komatsu mini excavators | Select PC12R-8, PC15R-8, PC20R-8 and PC25R-8 configurations; verify electrical fitment |
Product Overview
When a charging system stops replenishing the battery, equipment may require jump-starting or shut down after the battery discharges. This compact alternator is used across a surprisingly broad set of Yanmar-powered equipment, but mounting and electrical configurations must match the original.
Key Features & Performance
- Alternator / charging generator replacement
- Referenced as 12-volt compact alternator in aftermarket catalogs
- Catalog references include Yanmar 129150-77202, 129150-77201 and John Deere AM877557, AM879144, CH15587; verify exact supersession for your assembly
- Inspect drive and charging-system components during diagnosis
Why Replace This Part?
Battery warning symptoms, low charging voltage and repeated battery discharge can indicate a charging fault; also test the battery, connections, regulator and wiring.
Replaces / Cross-References
- YM129150-77202
- 129150-77202
- 129150-77201
- AM877557
- AM879144
- CH15587
Verified Reference & Fitment Details
15-amp alternator, external regulator, pulley included. Confirm John Deere machine and harness using serial-specific catalog.
Komatsu identifies part and amperage but does not validate all John Deere tractor/mower applications.
Fitment & Compatibility Notes
Match physical mounting, pulley/rotor arrangement, electrical plug and output rating. Listings for nearby John Deere and Komatsu models are not a substitute for matching the original number.
Frequently Asked Questions
Is this an OEM part? No. This listing describes an aftermarket replacement. Manufacturer part numbers are provided for identification.
How do I confirm fit? Compare the original part number and physical and electrical specifications, and consult your equipment serial-number parts catalog when applicable.
Part Summary
keywords: YM129150-77202 alternator, John Deere 1070 charging alternator, Yanmar 129150-77202, John Deere AM877557 replacement, Komatsu YM129150-77202
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.