ROCK BREAKER PARTS
Hby Seal With Backup Ring Mb1200

Hby Seal With Backup Ring Mb1200

OEM Part No. 120 X 135 X 5.6
Compatible With WITH BACKUP RING MB1200
Availability ✓ In Stock
Hby Seal With Backup Ring Mb1200 – PRECISION SEALING PART | OEM: 120 X 135 X 5.6
✓ Genuine Quality ✓ Pan India Shipping ✓ Expert Support

Product Specifications

Compatible Model(s)OEM Part NumberPart TypeAvailability
WITH BACKUP RING MB1200120 X 135 X 5.6ROCK BREAKER PARTS✓ In Stock

Product Description

OEM Part Numbers: 120 X 135 X 5.6

Machine ModelPart Number
WITH BACKUP RING MB1200120 X 135 X 5.6

The 120 X 135 X 5.6 hby seal with backup ring mb1200 is a precision sealing component for the WITH BACKUP RING MB1200, preventing fluid leakage between engine or hydraulic system components and maintaining system pressure integrity. Seal failure results in fluid leakage that reduces system pressure, contaminates surrounding components, and can lead to rapid fluid loss and component damage. Engineered to OEM standard 120 X 135 X 5.6 for exact installation on the WITH BACKUP RING MB1200 and immediate restoration of system fluid integrity.

Key Features:

  • Complete Fluid Sealing: Prevents fluid leakage between components, maintaining system pressure and preventing contamination.
  • OEM Dimensional Accuracy: Manufactured to specification 120 X 135 X 5.6 for precise fitment on the WITH BACKUP RING MB1200 with no leakage.
  • Material Compatibility: Constructed from materials rated for the specific fluid, pressure, and temperature environment of the application.

The 120 X 135 X 5.6 hby seal with backup ring mb1200 ensures leak-free fluid containment and system pressure integrity on the WITH BACKUP RING MB1200.

What Does This Rock Breaker Parts Do?

Rock breaker (hydraulic hammer) components — including chisels, moil points, blank rods, retaining pins, through bolts, diaphragms, and accumulator assemblies — are the wear and sealing parts of the attachment. They convert hydraulic flow from the excavator into high-frequency percussive force for demolition and rock breaking.

Possible Rock Breaker Parts Problem Symptoms

If your machine is showing any of the following, a faulty rock breaker parts may be the cause:

  • Reduced breaker impact energy or blow frequency compared to normal operating performance
  • Chisel or moil point wearing excessively fast or showing abnormal tip deformation
  • Hydraulic oil leaking from the breaker body, through bolts, or front head area
  • Breaker not firing at all despite correct hydraulic flow and pressure being supplied by the excavator

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.