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Komatsu Heavy Equipment Parts

Komatsu Heavy Equipment Parts

New Aftermarket, Used and Rebuilt Komatsu Parts

AMS Parts is proud to be an industry leading supplier of new OEM surplus, used and rebuilt parts for Komatsu machines. Whether you're looking for a D31A dozer engine or an undercarriage for one of the newer PC290LC-10 excavators, we have you covered. Our goal is to become your go-to Komatsu parts supplier by developing a relationship of trust, qual...moreity and savings. Since its establishment in 1921, Komatsu has become the world's second largest supplier of earth moving equipment and they bring a wealth of experience, quality and trust to the construction equipment industry. As a Komatsu machine owner, it is important that you not only find the replacement part you're looking for, but also a quality part for an excellent price. Give us a call today and let's begin a relationship of trust, quality and savings! If we don't have a part in stock or don't carry it, we'll track it down for you at the best price possible.


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1-800-255-6253

Select Komatsu Machine Type

All Komatsu Parts

Bearing 421-12-12220

Bearing

  • Part #: 421-12-12220
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Trunnion 421-14-11121

Trunnion

  • Part #: 421-14-11121
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Trunnion 421-14-11151

Trunnion

  • Part #: 421-14-11151
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Washer 421-15-12360

Washer

  • Part #: 421-15-12360
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Bearing 421-15-13380

Bearing

  • Part #: 421-15-13380
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Spider & Bearing Kit 421-20-12620

Spider & Bearing Kit

  • Part #: 421-20-12620
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Coupling 421-20-13532

Coupling

  • Part #: 421-20-13532
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Spider Assy 421-20-32621

Spider Assy

  • Part #: 421-20-32621
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Spider 421-20-A1230

Spider

  • Part #: 421-20-A1230
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Carrier Assy 421-22-12101

Carrier Assy

  • Part #: 421-22-12101
  • Fits Machine(s): WA450-3L
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Shim 421-22-12170

Shim

  • Part #: 421-22-12170
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Retainer 421-22-12220

Retainer

  • Part #: 421-22-12220
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Hub 421-22-12340

Hub

  • Part #: 421-22-12340
  • Fits Machine(s): WA450L-3
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Spacer 421-22-12350

Spacer

  • Part #: 421-22-12350
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Hub 421-22-12742

Hub

  • Part #: 421-22-12742
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Bearing 421-22-12770

Bearing

  • Part #: 421-22-12770
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Bearing 421-22-12790

Bearing

  • Part #: 421-22-12790
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Shaft 421-22-13230

Shaft

  • Part #: 421-22-13230
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Coupling 421-22-31231

Coupling

  • Part #: 421-22-31231
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Seal 421-22-31771

Seal

  • Part #: 421-22-31771
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Part Sales Account Executive