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Water Pump 6204-61-1303 for Komatsu 4D95 D20 D21 Dozers – Northline Parts

Water Pump 6204-61-1303 for Komatsu 4D95 D20 D21 Dozers

SKU: NLT2T00161
$264.59 In Stock
$264.59
Sale price  $264.59 Regular price 
Ships for free in 2–4 business days.
This replacement water pump uses part number #6204-61-1303 on select Komatsu D20 and D21 dozers with compatible 4D95 engines. It circulates coolant to keep the engine at a controlled temperature.
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
  • Komatsu D20-6
  • Komatsu D21-6
  • Komatsu D20-7
  • Komatsu D21-7
  • Komatsu 4D95 engine applications

Product Overview

A pump with a leaking seal or worn bearing can lose coolant and eventually overheat the engine. Check the fan drive and radiator at the same time to identify the root cause of poor cooling.

Coolant loss at shaft seal, water pump noise, overheating. Match the housing shape, pulley, gasket, and 4D95 engine suffix before purchase.

Key Features & Performance

  • Water pump for 4D95 engine variants
  • Primary part identification: 6204-61-1303
  • Application: Komatsu D20-6; Komatsu D21-6; Komatsu D20-7 and other listed matching models
  • Common service situations: coolant loss at shaft seal, water pump noise, overheating

Replaces / Cross-References

  • 6204-61-1303

What Is Included

Includes one water pump 6204-61-1303.

Fitment Notes

Match the housing shape, pulley, gasket, and 4D95 engine suffix before purchase.

Frequently Asked Questions

Is this a genuine OEM part?
No. This listing describes a replacement part unless the product is explicitly identified as genuine OEM. Brand and part numbers identify intended applications.

What should I check before ordering?
Match the housing shape, pulley, gasket, and 4D95 engine suffix before purchase.

Will this part fix every related symptom?
Not necessarily. Several different faults can cause similar symptoms, so test the affected system and compare the original component first.

Part Summary

Keywords: Water Pump 6204-61-1303, Komatsu D20-6, Komatsu D21-6, Komatsu D20-7, Komatsu D21-7, Komatsu 4D95 engine applications, 6204-61-1303, water pumps.

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.

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