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12_2fe07d28-2948-4235-90a4-efb487e83eee - Northline Parts

A/C Air Compressor 20Y-979-6121 for Komatsu PC300 PC450 PC600 PC650 10S15C 24V

Alligator_819_x_200_px - Northline Parts

The Aftermarket Parts Specialists

$372.99
Sale price  $372.99 Regular price 

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Ships Nationwide in 2–4 business days.
This A/C Air Compressor is a high-quality aftermarket replacement part compatible with Komatsu PC300 PC450 PC600 PC650 and matches OEM Part# 20Y-979-6121.

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I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks

Edward H. — Verified customer

Product Overview

This heavy-duty 24V A/C compressor is engineered for Komatsu excavators to maintain consistent cabin cooling in demanding environments. Built for durability, it offers a reliable alternative to original equipment to ensure operator comfort during long shifts.

Key Features & Performance

  • Precision-machined internal components for smooth operation and efficiency.
  • High-strength housing designed to withstand the vibrations of heavy machinery.
  • Direct replacement for 10S15C series compressors for a seamless fit.

Fitment & Compatibility

  • Komatsu PC300
  • Komatsu PC450
  • Komatsu PC600
  • Komatsu PC650

Technical Specifications

  • Part Number(s): 20Y-979-6121
  • Model Type: 10S15C
  • Voltage: 24V

Frequently Asked Questions

Q: Is this unit compatible with 12V systems? A: No, this compressor is specifically designed for 24V electrical systems common in heavy-duty Komatsu equipment.

Q: Does this compressor come with the clutch assembly? A: Yes, the unit includes the clutch and pulley as part of the complete assembly.

Compatibility may vary by serial number. Verify fitment before purchase.

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Service was professional and easy to work with. They kept me updated on my order and recommended a different part when the one I originally picked wasn’t going to work. Everything showed up as expected and the process was smooth overall.

- Customer, Chris D.

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