CATERPILLAR CAT320C / CAT320D2
Swing Device Pinion Shaft for Caterpillar CAT 320D3 Excavator

Swing Device Pinion Shaft for Caterpillar CAT 320D3 Excavator

OEM Part No. 5703872
Compatible With CAT 320D3
Availability ✓ In Stock
Swing Device Pinion Shaft Cat 320D3 – OEM GRADE MACHINE REPLACEMENT PART | OEM: 5703872
✓ Genuine Quality ✓ Pan India Shipping ✓ Expert Support

Product Specifications

BrandCompatible Model(s)OEM Part NumberPart TypeAvailability
Caterpillar (CAT)CAT 320D35703872CATERPILLAR CAT320C / CAT320D2✓ In Stock

Product Description

OEM Part Numbers: 5703872

Machine ModelPart Number
CAT 320D35703872

The 5703872 swing device pinion shaft cat 320d3 is a genuine quality replacement component for the CAT 320D3, engineered to restore full machine performance and reliability when the original part reaches the end of its service life. Component wear and failure leads directly to reduced machine productivity, increased fuel consumption, and the risk of more extensive damage if replacement is delayed. Engineered to OEM standard 5703872 for exact fitment on the CAT 320D3.

Key Features:

  • OEM Grade Quality: Manufactured to the same specification as the original part for reliable, long-term performance.
  • Direct Fitment: Built to OEM reference 5703872 for accurate installation on the CAT 320D3 without modification.
  • Operational Reliability: Restores the machine's original performance and dependability for sustained heavy-duty operation.

The 5703872 swing device pinion shaft cat 320d3 is an OEM-specification replacement part for restoring full operational capability on the CAT 320D3.

Why Buy From GCO Products?

Gautam & Company has been supplying earthmoving machinery spare parts since 1999. Here is why contractors, fleet operators, and dealers across India trust us.

Supplying Since 1999

Over 27 years of experience in the earthmoving parts industry.

Technical Support

Our team helps you confirm the right part before you order.

GST Billing

Proper GST invoices on every order for your accounting needs.

Pan-India Supply

Fast dispatch from Jalandhar to all states across India.

Bulk & Wholesale

Volume pricing available for fleet owners, dealers and distributors.

OEM & Aftermarket

Both genuine OEM and quality aftermarket options available.

How to Confirm Compatibility

To ensure this part is the correct fit for your machine, have the following ready when you contact us:

  • 1
    Machine Model & Year

    E.g. Komatsu PC200-8, CAT 320D, JCB JS205 — include the model suffix if known.

  • 2
    Machine Serial Number

    Found on the machine's chassis plate. Helps confirm the exact production variant.

  • 3
    OEM Part Number

    From your parts manual, the old part itself, or the machine's service documentation.

Not sure if this part fits your machine?

WhatsApp Us to Confirm Typically replies within a few hours

Disclaimer: This is an aftermarket replacement part supplied by GCO Products (Gautam & Company) and is not manufactured by, affiliated with, or endorsed by the original equipment manufacturer (OEM). All brand names, model numbers, and OEM part numbers referenced on this page are used solely for the purpose of identifying compatibility and describing the application of this part. All trademarks, registered marks, and brand identifiers remain the exclusive property of their respective owners. GCO Products claims no association with, sponsorship by, or endorsement by any OEM brand mentioned herein.