Pump Coupling for JCB JS 81 Excavator
Product Specifications
| Brand | Compatible Model(s) | OEM Part Number | GCO Code | Part Type | Availability |
|---|---|---|---|---|---|
| JCB | JS 81 | 30A | G01.13 | PUMP COUPLING / CLUTCH DISC DAMPNER | ✓ In Stock |
Product Description
OEM Part Numbers: 30A
| Machine Model | Part Number |
|---|---|
| JS 81 | 30A |
Built for the JS 81, the 30A pump coupling js 81 delivers steady, pressurised fluid to the engine's fuel or hydraulic system — a critical function for maintaining power output and operational efficiency. A failing pump results in loss of power, hard starting, rough running, and eventual engine shutdown — making prompt replacement essential to avoid extended downtime. Built to OEM reference 30A for accurate, no-modification installation on the JS 81 with full flow and pressure restored from day one.
Key Features:
- Sustained Flow Rate: Provides steady, reliable fluid delivery to prevent power loss and maintain engine performance.
- OEM Grade Build: Manufactured to reference 30A for direct, compatible fitment on the JS 81.
- Long Service Life: Designed for extended operational life under the continuous demands of heavy excavation and construction work.
The 30A pump coupling js 81 is a critical engine system component for restoring full fluid delivery performance on the JS 81.
What Does This Pump Coupling / Clutch Disc Dampner Do?
The pump coupling connects the engine flywheel to the hydraulic pump drive shaft, transmitting rotational power while absorbing shock loads and vibration caused by pump pressure spikes. The clutch disc damper uses rubber elements or spring-loaded damping rings to smooth out torsional vibration between the engine and drivetrain.
Possible Pump Coupling / Clutch Disc Dampner Problem Symptoms
If your machine is showing any of the following, a faulty pump coupling / clutch disc dampner may be the cause:
- Vibration or shudder felt through the machine frame when hydraulic functions are operated under load
- Knocking or clunking noise from the pump/engine connection point during load changes
- Hydraulic pump running but producing reduced output pressure due to slipping coupling
- Visible rubber deterioration, cracks, or missing segments in the coupling spider or damper ring
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.
Over 27 years of experience in the earthmoving parts industry.
Our team helps you confirm the right part before you order.
Proper GST invoices on every order for your accounting needs.
Fast dispatch from Jalandhar to all states across India.
Volume pricing available for fleet owners, dealers and distributors.
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:
- 1Machine Model & Year
E.g. Komatsu PC200-8, CAT 320D, JCB JS205 — include the model suffix if known.
- 2Machine Serial Number
Found on the machine's chassis plate. Helps confirm the exact production variant.
- 3OEM 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 hoursDisclaimer: 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.
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