
Common Rail Assembly Zaxis 270 / Sumitomo
Product Specifications
| Brand | Compatible Model(s) | OEM Part Number | GCO Code | Part Type | Availability |
|---|---|---|---|---|---|
| Hitachi | COMMON RAIL ASSEMBLY ZAXIS 270 / SUMITOMO | 4HK1 8973060632 / 8973060634 | A13.6 | COMMON RAIL ASSEMBLY | ✓ In Stock |
Product Description
OEM Part Numbers: 4HK1 8973060632 / 8973060634
Machine Compatibility
| Machine Model | Type | Part Number |
|---|---|---|
| COMMON RAIL ASSEMBLY ZAXIS 270 | 4HK1 8973060632 | |
| SUMITOMO | 8973060634 |
Designed for the COMMON RAIL ASSEMBLY ZAXIS 270 / SUMITOMO, the 4HK1 8973060632 common rail assembly zaxis 270 / sumitomo is an OEM-specification replacement component built to restore the original performance, reliability, and safety of the machine. Worn or failed components cause machine performance to degrade, leading to increased downtime, higher operating costs, and risk of secondary damage to associated parts. Manufactured to OEM reference 4HK1 8973060632 for accurate installation on the COMMON RAIL ASSEMBLY ZAXIS 270 / SUMITOMO with full performance restored.
Key Features:
- Precision Manufactured: Built to OEM tolerances for accurate fitment and reliable performance on the COMMON RAIL ASSEMBLY ZAXIS 270 / SUMITOMO.
- Compatible Replacement: Manufactured to reference 4HK1 8973060632 for direct, compatible installation on the COMMON RAIL ASSEMBLY ZAXIS 270 / SUMITOMO.
- Performance Restoration: Returns the machine system to original OEM performance levels on installation.
The 4HK1 8973060632 common rail assembly zaxis 270 / sumitomo is a genuine quality replacement component for maintaining machine performance and reliability on the COMMON RAIL ASSEMBLY ZAXIS 270 / SUMITOMO.
What Does This Common Rail Assembly Do?
The common rail is a high-pressure fuel accumulator that stores fuel at the injection pressure (typically 1,000–2,000 bar) and distributes it to each injector simultaneously on demand. By decoupling fuel pressure generation from the injection event, it enables precise control of injection timing, quantity, and multiple injection events per cycle.
Possible Common Rail Assembly Problem Symptoms
If your machine is showing any of the following, a faulty common rail assembly may be the cause:
- Hard starting or complete failure to start when rail pressure cannot be built
- Significant loss of power and rough running under any load condition
- White or black smoke from the exhaust caused by poor injection quality
- High-pressure fuel leak at the rail body, pressure sensor port, or injector feed pipes
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.


