PILOT FILTER BODY
Oil Filter for Caterpillar CAT 120K

Oil Filter for Caterpillar CAT 120K

OEM Part No. 3925357
Compatible With CAT 120K
Availability ✓ In Stock
Oil Filter Base Cat 120K – HIGH-CAPACITY ENGINE PROTECTION FILTER | OEM: 3925357
✓ Genuine Quality ✓ Pan India Shipping ✓ Expert Support

Product Specifications

BrandCompatible Model(s)OEM Part NumberPart TypeAvailability
Caterpillar (CAT)CAT 120K3925357PILOT FILTER BODY✓ In Stock

Product Description

OEM Part Numbers: 3925357

Machine ModelPart Number
CAT 120K3925357

The 3925357 oil filter base cat 120k safeguards the engine system of the CAT 120K by filtering abrasive particles and contaminants before they reach critical engine and injection components. Filter failure exposes critical engine components to unfiltered fluid, accelerating wear on injectors, pistons, and bearings — significantly shortening engine service life. Built to OEM specification 3925357 for direct fitment on the CAT 120K with no modification required.

Key Features:

  • High-Efficiency Filtration: Removes harmful particles from the fluid circuit to maintain clean, protected engine internals.
  • Direct OEM Fitment: Built to reference 3925357 for direct installation on the CAT 120K without modification.
  • Routine Maintenance Essential: A low-cost part that provides critical protection against expensive contamination-related engine damage.

The 3925357 oil filter base cat 120k is a key maintenance component for extending engine service life through effective fluid filtration on the CAT 120K.

What Does This Pilot Filter Body Do?

Houses the pilot hydraulic filter element that removes contaminants from the low-pressure pilot oil circuit. Clean pilot oil is critical for precise operation of the pilot control valves that direct the main hydraulic control valve spools in response to operator joystick inputs.

Possible Pilot Filter Body Problem Symptoms

If your machine is showing any of the following, a faulty pilot filter body may be the cause:

  • Sluggish or imprecise response to boom, arm, or bucket control inputs
  • Hydraulic controls feeling stiff or requiring more lever force than normal
  • Pilot filter clog indicator or warning light activating on the monitor
  • Erratic or jerky movement in one or more hydraulic functions

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.