CCEC Cummins NTA855-G2A 310 kW Generator Drive Engine

The NTA855-G2A belongs to the NTA855 series — Cummins' established 14-liter platform for mid-range generator applications in the 200–400 kW band. The "NTA" designation confirms turbocharged + water-air aftercooled configuration (distinct from the NTAA855 series which uses air-air intercooling). Genset builders commonly pair the G2A with Stamford HCI444 or Leroy-Somer LSA 46.3 alternators for complete 375 kVA sets.

Typical Application Scenarios

Hospital & Critical Facility Standby Power

Hospitals running continuous 24/7 critical loads — operating theaters, ICUs, life-safety systems — require an engine that accepts full rated load in a single step without frequency dip. The NTA855-G2A's mechanical governor and 1974 N.m of torque at 1500 RPM deliver stable transient response under sudden load pickup. The 343 kW standby rating provides the mandatory headroom above prime load that most hospital electrical codes require. Paired with a PowerCommand-equipped genset controller, it meets NFPA 110 Level 1 compliance out of the box.

Mining & Remote Site Prime Power

Off-grid mining operations, quarries, and remote construction camps demand an engine that runs continuously under high load factors in dusty, high-ambient environments. The NTA855-G2A's standard cooling package is rated for operation up to 50°C (122°F) ambient — a specification that eliminates the need for additional cooling upgrades in tropical and desert deployments. The PT fuel system's mechanical simplicity reduces dependency on electronic diagnostics in locations where specialist technicians are scarce. With an overhaul interval exceeding 20,000 hours under normal load factors, scheduled maintenance aligns with typical site rotation cycles.

Commercial Building & Industrial Facility Backup

Office towers, data centers, and manufacturing facilities in the 300–375 kVA demand bracket represent the G2A's most common deployment. The engine's Euro II emission rating meets import requirements across Southeast Asia, the Middle East, and Africa — the primary markets for this power class. At 310 kW prime, the G2A runs comfortably at 70–80% load factor in typical building backup duty, which is the sweet spot for engine longevity. The 14-liter displacement and mature parts ecosystem mean service contractors can source consumables locally in most major markets without waiting on import clearance.

Technical Specifications

Series Comparison — NTA855 G-Drive Engine Variants

TC = Turbocharged · AC = Water-Air Aftercooled · AAC = Air-Air Aftercooled

Replacement Compatibility

The NTA855-G2A is a direct replacement candidate for gensets originally fitted with the NTA855 D093517DX02 configuration family. Before ordering a replacement engine, verify the following:

· CPL code on your existing engine nameplate — G2A corresponds to CPL CQ130
· SAE flywheel housing size — confirm SAE No. with your genset OEM before ordering
· Mounting footprint — cross-check against your baseframe drawing
· Frequency — G2A is 1500 RPM (50 Hz); do not substitute for 1800 RPM installations

Genset brands known to use NTA855-series engines in the 300–375 kVA range include Cummins Power Generation, FG Wilson, Olympian (CAT), and SDMO. If you can provide your genset model number, we can confirm compatibility before shipment.

Parts & Service

The NTA855 platform has been in continuous production since the 1995s and maintains one of the widest parts distribution networks in the industrial diesel segment.

· OEM parts sourcing via CCEC authorized channels — filters, injectors, overhaul kits
· CPL CQ130 parts catalog available on request
· Common service intervals: oil & filter every 250 hrs, fuel filter every 500 hrs, full overhaul at 20,000+ hrs depending on load factor
· Technical documentation: Operation & Maintenance Manual, Parts Catalog, and Troubleshooting Guide supplied with each engine

Our engineering team provides remote technical support for installation, commissioning, and fault diagnosis.

Procurement & Logistics

· Origin: Chongqing Cummins Engine Co. (CCEC), Chongqing, China
· Lead Time: 15–30 working days (stock subject to confirmation)
· Payment Terms: T/T, L/C
· Packing: Export wooden crate, fumigation certificate available
· Shipping: FOB Shenzhen / CIF to major ports; full container or LCL both available
· Export Documents: Commercial Invoice, Packing List, Bill of Lading, CO, Fumigation Certificate; Form E (ASEAN) available on request
· Transit protection: Insurance arrangement available; pre-shipment inspection available upon request

Warranty & After-Sales

Standard warranty: 12 months from date of delivery, covering manufacturing defects under normal operating conditions. Warranty applies to the engine unit as supplied; exclusions include wear parts, improper installation, and operation outside rated parameters.
Post-warranty support includes spare parts supply, overhaul services, and technical consultation. Warranty claims are processed with documentation: fault description, photos, and engine serial number.

Wholesale & Distribution

We supply CCEC Cummins generator engines directly from the Chongqing plant with agent-level pricing. Volume pricing tiers and supply scheduling are available for traders, genset OEMs, and regional distributors. Export documentation packages for re-export and third-country trade are provided as standard.
Authorized distributor arrangements are evaluated on a case-by-case basis. Contact us with your annual volume requirements and target markets.

FAQ

Q1: What is the fuel consumption of the NTA855-G2A at full load?

Fuel consumption data at rated output is available in the C-173E performance curve; as a reference, 14-liter Cummins engines in this power class typically consume 62–68 liters per hour at prime load. Contact us for the official performance curve document.

Q2: What is the engine oil capacity of the NTA855-G2A?

Oil sump capacity data should be confirmed against the official Operation & Maintenance Manual for CPL CQ130; we supply the O&M manual with every engine. Contact us and we will pull the exact figure from the documentation before your order.

Q3: What genset kVA output corresponds to the NTA855-G2A?

At 0.8 power factor, 310 kW prime equals approximately 375 kVA. At standby rating (343 kW), the equivalent is approximately 430 kVA. Most OEMs build this engine into 375 kVA prime / 413 kVA standby genset packages.

Q4: Can the NTA855-G2A start in cold weather?

Without auxiliary starting aids, the minimum cold-start temperature is -12°C (10°F). For installations in colder climates, engine block heaters and fuel heaters are standard options available from genset OEMs.

Q5: How does the NTA855-G2A compare to the NTA855-G4 (317 kW)?

Both run at 1500 RPM but use different configuration codes (G2A: D093517DX02 / G4: D093613DX02). The G4 produces 7 kW more prime power. The G2A has wider deployment history and broader parts availability in most markets; the G4 suits applications where maximum prime power output is the primary selection criterion.

Q6: What is the difference between CCEC (Chongqing Cummins) and XCEC (Xi'an Cummins)?

CCEC produces the NT/NTA/NTAA855 and KT/KTA series; XCEC produces the ISM, ISX, and QSX series. The NTA855-G2A is exclusively manufactured at CCEC Chongqing. They are separate joint ventures with independent parts inventories — parts are not cross-compatible between plants.

Q7: Is this a genuine Cummins engine or a Chinese copy?

CCEC (Chongqing Cummins Engine Co.) is a formal Cummins joint venture with 50% shareholding by Cummins USA. Engines carry Cummins branding, are manufactured to Cummins specifications, and are covered under Cummins' authorized warranty framework. They are not grey-market or reverse-engineered products.

Q8: What is the CPL number for the NTA855-G2A, and why does it matter?

The CPL (Control Parts List) number is CQ130. It is the master reference code Cummins uses to identify the exact build specification of your engine — every authorized parts order, warranty claim, and service bulletin references the CPL. When ordering replacement parts or requesting technical support, always provide the CPL number alongside the engine serial number.

Q9: Is the NTA855-G2A suitable as a direct drop-in replacement for my existing engine?

Compatibility depends on your CPL code, SAE flywheel housing interface, and mounting footprint. Provide your existing engine serial number or nameplate data and we will confirm fitment before you place an order — this is a free pre-sale service we provide for all replacement orders.

Q10: What documents are included with each engine shipment?

Standard documentation package: Operation & Maintenance Manual, Parts Catalog, engine test report, commercial invoice, packing list, bill of lading, certificate of origin, and fumigation certificate. Form E (ASEAN preferential tariff) and third-party inspection certificates are available on request.

Cummins QSB5.9-G2 G-Drive Diesel Engine (96 kW @ 1500 RPM)

The QSB5.9-G2 is a generator drive engine manufactured by Dongfeng Cummins Engine Co., Ltd. (DCEC), produc…

DCEC Cummins QSB6.7-G3 Generator Drive Engine

A proven 6-cylinder, 6.7-liter diesel engine engineered for continuous generator set operation — backed by B…

Cummins QSM11-G3 Generator Drive Engine