Cummins 300-6314-01 PowerCommand Display-Control Assembly
Overview
The Cummins 300-6314-01 is a genuine PowerCommand display-control assembly used on Cummins/Onan industrial and standby diesel generator sets, providing the operator interface for engine and generator monitoring, alarm annunciation, and control functions. Despite the generic “Engine” label sometimes attached to this part number, the 300-6314-01 is not an engine component itself – it is the symbol-and-text control display panel (Display-Cntrl, SYM, ENG T) that reads engine and generator status from the genset control module and presents it to the operator at the control panel, and it has been discontinued by Cummins as an OEM part, now supplied through the aftermarket parts network.
Seven Star LLC supplies the Cummins 300-6314-01 PowerCommand display-control assembly as an authorized-partner channel to standby power operators across Oman and the GCC, supporting hospitals, data centres, oil and gas facilities, and commercial buildings that run Cummins/Onan diesel generator sets equipped with this control panel. Because the 300-6314-01 has been discontinued and superseded across several PowerCommand HMI generations, our team can help confirm whether the direct replacement or a compatible successor display is the correct fit for your specific genset control panel before ordering.
Measurement and Operating Principle
The 300-6314-01 display does not measure engine parameters directly; it receives digitized engine and generator data – oil pressure, coolant temperature, battery voltage, RPM, fault codes, and generator output parameters – from the genset’s engine control module (ECM) and generator control module over the internal control bus, then renders that information on its symbol-and-text LCD for the operator standing at the control panel. The display also provides the local interface for alarm acknowledgment, control mode selection (auto/manual/off), and menu navigation into diagnostic and configuration screens.
Because the display is the operator’s primary window into genset health, its accuracy and responsiveness directly affect how quickly a facility engineer can identify a developing fault – low oil pressure, high coolant temperature, or a charging system fault – before it escalates into an unplanned shutdown. A failed or unreliable 300-6314-01 display can leave a generator effectively unmonitored at the panel level even while the engine control module continues to function normally in the background.
Engineering Design
The Cummins 300-6314-01 display-control assembly is built to the PowerCommand control panel form factor used across a range of Cummins/Onan industrial genset control panels, with a keyed connector and mounting footprint designed for direct swap into the existing panel enclosure. The unit weighs approximately 0.72 kg (1.59 lbs) and is classified within Cummins’ electrical products range under the power generator control subcategory, reflecting its role as a control and monitoring component rather than a mechanical engine part.
As a discontinued OEM part, the 300-6314-01 is now sourced through the Cummins/Onan aftermarket parts network, where genuine remanufactured and new-old-stock units are available as direct-fit replacements. Facilities running older PowerCommand-equipped gensets rely on this continued parts availability to keep legacy control panels in service without a full panel retrofit.
Cummins 300-6314-01 Key Features
- Genuine Cummins/Onan PowerCommand display-control assembly, part number 300-6314-01
- Symbol-and-text LCD interface for engine and generator status, alarms, and control mode selection
- Direct-fit replacement for the existing genset control panel display footprint
- Reads engine and generator data from the ECM and generator control module over the internal control bus
- Supports local alarm acknowledgment and diagnostic menu navigation
- Compact, lightweight assembly (approximately 0.72 kg) designed for panel-mounted installation
- Sourced through the Cummins/Onan aftermarket network following OEM discontinuation
- Critical to maintaining operator visibility on standby and prime power generator sets
Industrial Applications for the Cummins 300-6314-01
The Cummins 300-6314-01 display-control assembly is used on standby and prime power diesel generator sets serving hospitals, data centres, oil and gas facilities, telecommunications sites, and commercial buildings across Oman where uninterrupted power is critical. It is typically replaced when the existing panel display fails, becomes unreadable, or loses communication with the genset control module, restoring full local monitoring and control capability without needing to replace the entire control panel.
Seven Star LLC, as an authorized partner supporting Cummins/Onan standby power equipment in Oman and the GCC, helps facility engineers in Muscat, Sohar, Duqm, and Salalah source the correct display-control assembly for their genset control panel generation, minimizing downtime during scheduled maintenance or emergency panel repairs.
Cummins 300-6314-01 Technical Specifications
| Model | Cummins 300-6314-01 |
|---|---|
| Description | PowerCommand Display-Control Assembly (SYM, ENG T) |
| Function | Genset engine/generator status display and local control interface |
| Weight | Approximately 0.72 kg (1.59 lbs) |
| Category | Electrical / power generator control component |
| Compatible Systems | Cummins/Onan PowerCommand-equipped industrial diesel generator sets |
| Status | Discontinued OEM part – supplied through aftermarket parts network |
| Also Identified As | PowerCommand HMI 220 operator panel |
| Alternate Part Number Format | 0300-6314-01 |
| Associated Control Platform | Cummins PowerCommand 2.2 (PCC 2.2) generator set controller |
| Manufacturer | Cummins Inc. (Onan) |
Identification: The PowerCommand HMI 220 Operator Panel
Cummins’ own PowerCommand 2.2 and 2.3 service literature identifies part number 0300-6314-01 as the HMI 220 operator panel for the PowerCommand 2.2 generator set controller, which is the single most useful piece of information a buyer can carry into a sourcing enquiry for this item. The same assembly is catalogued in both the leading-zero form 0300-6314-01 and the abbreviated 300-6314-01, and both refer to the same display-control assembly. Confirming the HMI 220 designation and the PCC 2.2 control platform before ordering removes most of the ambiguity created by the generic “Display-Cntrl, SYM, ENG T” catalogue description, and it is the quickest way to establish whether an offered unit is the correct generation for a given panel.
In the PowerCommand 2.2 architecture the operator panel is one of several devices that can monitor, manage and control the generator set. The service manual documents the operator panel connections at the base board along with an optional remote HMI operator panel, and the wider control supports Modbus communication and the AUX101 and AUX102 auxiliary input and output boards for additional discrete and analogue points. This matters when planning a replacement: the panel display is a node on a control system, not a standalone gauge, and a fault that presents as a blank or unresponsive display can originate at the base board, the interconnecting harness, or the panel itself.
Replacement and Commissioning Practice
Before condemning a Cummins 300-6314-01 display, the standard diagnostic sequence is to verify control power and battery voltage at the panel, inspect the operator panel harness and connectors for corrosion or backed-out pins, and confirm whether the base board is still responding to a service tool or remote connection while the local display is dark. Generator control panels in Omani coastal and desert installations accumulate salt and fine dust at the enclosure seals, and connector corrosion is a more common root cause of display failure than the display electronics themselves.
When a genuine replacement assembly is fitted, the genset should be exercised through a full no-load and on-load test after installation so that engine parameters, alternator output values, fault annunciation and the auto/manual/off mode selection are all confirmed to read and act correctly before the set is returned to standby duty. Seven Star LLC supports facility engineers across Oman and the GCC in confirming the correct panel generation, part number format and control platform for their genset before a replacement display is ordered.
Request a Quote
Contact Seven Star LLC for pricing and availability on the Cummins 300-6314-01 PowerCommand display-control assembly for your standby generator maintenance program in Oman and the GCC.
Seven Star LLC keeps the Cummins 300-6314-01 available for quick sourcing to Oman-based standby power maintenance teams needing a fast panel display replacement.
Related Products
Cummins Inc., founded in 1919 and headquartered in Columbus, Indiana, is a global leader in power-technology solutions including diesel and natural-gas engines, generators, filtration systems, turbochargers, and electric powertrains deployed across industrial, marine, mining, oil & gas, and power-generation sectors. With operations in over 190 countries and networks of distributors and dealers worldwide, the brand delivers reliable, high-performance equipment designed for demanding applications and evolving energy-transition needs. Seven Star LLC supplies genuine Cummins products for industrial projects across Oman and the Middle East.
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