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Water Pump 129263-42000 for Yanmar 3TNE84 3TNE88 4TNV88 4TNV84 TK486 4TNE84

Water Pump 129263-42000 for Yanmar 3TNE84 3TNE88 4TNV88 4TNV84 TK486 4TNE84

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$136.99
Sale price  $136.99 Regular price 

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Usually ships in 2–4 business days.
This water pump is an aftermarket replacement for select Yanmar 3TNE, 4TNE, and 4TNV compact diesel engines.
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Product Overview

The water pump circulates coolant through the engine block and radiator so heat can be carried away. This replacement is suited for pumps that leak from the weep hole, develop bearing noise, or no longer maintain proper coolant flow.

This part replaces #129263-42000. Compare the casting, bolt pattern, hub, and hose connections before installation.

Key Features & Performance

  • Restores engine-coolant circulation
  • Helps correct overheating caused by pump wear
  • Direct-fit design for compatible Yanmar engines
  • Suitable for compact equipment and industrial applications

Fitment & Compatibility

Compatible with select Yanmar 3TNE84, 3TNE88, 4TNE84, 4TNV84, 4TNV88, and TK486 engine applications.

Technical Specifications

  • Product Type: Engine Water Pump
  • Compatible Brand: Yanmar
  • Part Number: 129263-42000
  • Condition: New

Frequently Asked Questions

Q: What are common signs of a failing water pump? A: Coolant leakage, shaft play, grinding noise, or overheating can point to pump failure, although the full cooling system should be inspected.

Q: Is this an original OEM part? A: This is an aftermarket replacement; brand names and part numbers are used only to identify compatibility.

Compatibility may vary by serial number, production date, or equipment configuration. Verify fitment before purchase.

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