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Alternator for Takeuchi TB125, TB135, TB235, TL230 & TL240 | Yanmar 3TNV88 / 4TNV88 | Y129240-77200

SKU:
Y129240-77200
FitsModel:
TB125, TB135, TB145, TB53FR, TB153FR, TB228, TB235, TB250, TL130, TL220, TL230, TL240
ListDescription:
Alternator
Takeuchi TB125 TB135 TB235 TL230 TL240 Yanmar alternator Y129240-77200 12V 40A
Part # Y129240-77200

Fits Models At A Glance:

  • Takeuchi Compact Excavators: TB125, TB135, TB145, TB53FR, TB153FR, TB228, TB235, TB250
  • Takeuchi Compact Track Loaders: TL130, TL220, TL230, TL240
  • Yanmar Engines: 3TNV70, 3TNV76, 3TNV82, 3TNV84, 3TNV88, 4TNV84, 4TNV88, 4TNV94, 4TNV98

Key Notes:

  • Part Number: Y129240-77200
  • Interchange: 119836-77200, 101211-1380 (Denso), LRA03547 (Lucas), 12772 (Lester), 400-52094, AND0573
  • Voltage: 12V
  • Amperage: 40A
  • Rotation: Clockwise (CW)
  • Type: Permanent magnet — Denso style
  • Regulator: Internal
  • Fan: Internal
  • Pulley: 1-groove solid V-belt, 69mm OD
  • Output Stud: M6-1.0
  • Mounting: Upper ear M8-1.25 threaded — lower ear 10.4mm unthreaded
  • Weight: 7.46 lbs
  • Note: Verify your OEM part number from the machine's original alternator before ordering — some sources indicate this alternator does not fit TB2xx-series machines (TB216, TB225, etc.) despite being listed for those models in some catalogs.
  • Condition: Aftermarket replacement part

Common Use Case or Symptoms: Use when the alternator fails to charge the battery, warning light illuminates on the instrument panel, electrical system voltage drops under load, or the alternator produces noise from worn bearings — a failed alternator on applicable Takeuchi Yanmar-powered compact excavators and track loaders will drain the battery and eventually prevent the machine from starting.

Why Choose Broken Tractor:

  • ✅ Broad Takeuchi Yanmar Coverage: Y129240-77200 is the correct 40A Denso-style alternator for the Yanmar 3TNV/4TNV engine family used across Takeuchi TB125–TB250 compact excavators and TL130–TL240 compact track loaders.
  • ✅ Multiple Interchange Numbers Confirmed: Cross-references to Denso 101211-1380, Lucas LRA03547, and Lester 12772 — verify your OEM part number before ordering.
  • ✅ Fast Shipping from a U.S.-Based Team: In-stock and ready to ship from our U.S. warehouses.
$671.87 $284.00
(You save $387.87)

Shipping calculated at checkout. If any item in your order is temporarily unavailable, we'll contact you to arrange a back-order or refund — whichever you prefer.

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Product: Category: Brand: Head Title: Alternator | Broken Tractor | Y129240-77200