Cummins KTA38-G2B Generator Drive Engine

The KTA38-G2B is CCEC's mid-high output generator drive variant — rated 711 kW prime at 1500 RPM, positioned between the KTA38-G1 (634 kW) and KTA38-G5 (880 kW), and the standard engine choice for 800–1,000 kVA genset builds. Its 159×159 mm square-bore V12, Cummins PT fuel system, and turbocharged & aftercooled configuration maintain consistent thermal efficiency across variable load cycles in both prime and standby duty.

Commonly paired with Stamford HCI634 or Leroy Somer LSA 49.1 alternators by OEMs including FG Wilson and Himoinsa, the engine operates without derating at up to 40°C ambient and 1,500 m altitude — suitable for mining, oil & gas, and tropical deployments. Each unit ships from CCEC-authorized inventory with configuration number D233020DX02, genuine PT fuel system components, and full export documentation.

KTA38-G2B Technical Specifications

Governor note: Some genset OEMs install an external electronic governor (e.g. GAC EFC) on top of the mechanical base to achieve tighter speed regulation (±0.25%) and parallel operation capability. This is a genset-level addition — the engine itself is mechanically governed.

Volumetric figures calculated at diesel density 0.85 kg/L. Some sources quote 191 L/h as a single figure — this corresponds to 60 Hz standby load only, not prime or 50 Hz operation.

KTA38 Series: Which Engine Is Right for Your Generator Set?

The KTA38 family shares the same 38L V12 block architecture. Power output differences are driven by aspiration configuration, compression ratio, and rated speed — not displacement. Use the table below to confirm the KTA38-G2B is the correct selection for your kVA requirement.

KTA38 Generator Drive Engine Series — Full Comparison

Selection logic: If your target genset output falls between 800–1,000 kVA at 50 Hz, the KTA38-G2B is the correct platform. Stepping down to the G1 sacrifices ~77 kW of prime output on the same block; stepping up to the G5 adds ~170 kW but increases procurement cost and may exceed your alternator's frame capacity.

KTA38-G2B vs. Competing Engines in the 700–900 kW Range

For buyers evaluating multiple engine brands at the same power tier, the table below provides an objective reference. The KTA38-G2B competes primarily against the following platforms:

KTA38-G2B competitive advantage: Lowest acquisition cost per kW in this power tier. Largest installed base in Asia, Middle East, and Africa ensures widest parts availability and longest field service track record. Cummins PT fuel system components are available from multiple authorized distributors globally, reducing single-source dependency risk.

Limitation to disclose: Euro II emission rating limits deployment in markets requiring Stage IIIA / Tier 4 compliance (EU, USA new installations). Verify local emission requirements before specifying.

KTA38-G2B Replacement & Upgrade Compatibility Guide

This section is intended for operators replacing an existing engine in a generator set. Incorrect engine selection at replacement stage is one of the most common and costly procurement errors — dimensional mismatch, SAE interface incompatibility, or CPL code differences can result in installation rework or rejected warranty claims.

Direct Replacement: Same Series

The KTA38-G2B is a direct dimensional replacement for the following models sharing the same 38L block:

CPL Code: Each KTA38-G2B unit carries a specific CPL (Control Parts List) code that governs which spare parts are interchangeable. Before placing a replacement order, confirm the CPL code from your existing engine's dataplate. Provide this to your supplier to ensure parts compatibility is maintained post-installation.

Cross-Brand Replacement Considerations

If you are replacing a non-Cummins engine with a KTA38-G2B, the following interface points require verification before committing to the engine:

If you are unsure of your existing engine's SAE flywheel housing size or alternator coupling specification, send us the nameplate data or genset model number. We will confirm compatibility before order placement.

Genset Brands Known to Use KTA38-G2B

The following generator set manufacturers have used or currently use the KTA38-G2B as a standard drive engine in their 800–1,000 kVA product lines:
FG Wilson · Himoinsa · Olympian (Caterpillar) · Broadcrown · Jubaili Bros · Sdmo · Various CCEC-authorized Chinese OEMs
If your existing genset carries one of these badges and was built in the 800–1,000 kVA range, the KTA38-G2B is the high-probability correct replacement engine. Confirm by matching the engine dataplate model number before ordering.

KTA38-G2B Spare Parts & Service Support

Parts Supply: Three Tiers

Tier 1 — Genuine CCEC/Cummins OEM: Original specification, carry Cummins part numbers, warranty-eligible.
Tier 2 — OEM-equivalent (Licensed): Acceptable for non-warranty repairs — confirm supplier authorization.
Tier 3 — Aftermarket: Acceptable for low-criticality consumables only. Not recommended for fuel system, turbocharger, or governor components.
We supply Tier 1 genuine parts. Orders accepted independently of engine purchase — provide CPL code and part number for fastest response.

High-Demand Parts — KTA38-G2B

Service Intervals (Reference)

· Oil & Filter: every 250–500 hours · Fuel Filter: every 500 hours or annually
· Coolant: every 2 years · PT Pump Calibration: at major service or on fuel anomaly
· Major Overhaul: ~20,000–25,000 hours under prime duty
Always follow the Cummins O&M Manual specific to your engine's CPL code.

Technical Support

· Pre-sale: dataplate matching, CPL verification, SAE interface confirmation
· Parts: serial number + CPL code required for accurate part number lookup
· Post-sale: O&M manual, installation guidance, warranty claim initiation

Procurement & Logistics

Supply Scope Options

Order & Lead Time

· Standard lead time: 15–30 business days from order confirmation and deposit receipt
· Ex-stock units: Available subject to inventory — confirm availability at inquiry stage
· Parts orders: 7–15 business days depending on part category and volume

Export Documentation Package

Standard documentation included with every engine shipment:

· Commercial Invoice · Packing List · Bill of Lading
· Certificate of Origin (CO) · Engine Test Report
· CCEC Factory Inspection Certificate
· Operation & Maintenance Manual (English)

Additional documentation (Form A / GSP Certificate, SONCAP, PVOC, SGS Pre-shipment Inspection) available on request. Specify requirements at order placement — documentation amendments after shipment dispatch are not possible.

Shipping & Trade Terms

Freight & Import Considerations for Buyers

· Customs HS Code: 8408.90 (compression-ignition internal combustion engines, for industrial use) — verify with your local customs authority before import
· Import Duty: Varies by destination country. CIF value is the standard duty calculation base — we provide CIF invoice on request
· Transit Damage: All units are photographed pre-shipment. Marine cargo insurance is strongly recommended. We can arrange insurance on CIF terms or provide documentation to support buyer-arranged cover
· Port Inspection: If your country requires pre-shipment inspection (SGS, BV, Intertek), advise at order stage — minimum 5 business days additional lead time required

Warranty & After-Sales

Standard Warranty Terms

Warranty Period: 12 months or 1,500 operating hours — whichever occurs first
Coverage: Manufacturing defects in materials and workmanship
Claim Channel: Via supplier → CCEC authorized service network

Coverage Scope

Covered: Engine block, cylinder head, crankshaft, fuel system component defects · Turbocharger premature failure under normal operation · PT fuel pump and injector manufacturing defects.
Not Covered: Incorrect installation or commissioning · Normal wear items (filters, belts, seals) · Operation outside rated parameters · Damage from improper storage or transit handling · Engines fitted with non-genuine parts post-delivery.
Note: Warranty claims require engine serial number, CPL code, dated commissioning record, and service log. Establish a service log from day one.

Claim Process

Step 1 — Document: Photograph the fault. Record engine hours, conditions, and symptoms.
Step 2 — Notify within 7 days: Submit via email or WhatsApp with serial number, CPL code, and photos. Do not disassemble before acknowledgement.
Step 3 — Assessment: Remote diagnosis coordinated with CCEC technical support.
Step 4 — Resolution: Parts replacement or engine exchange — 15–30 business days from claim approval.

After-Sales Support

· O&M Manual supplied in English with every engine — additional languages on request
· Genuine parts supply post-warranty, no minimum order on standard items
· Technical consultation via email or WhatsApp — no charge pre- or post-sale
· Remote commissioning checklist provided · On-site support available in select regions

Wholesale & Distribution

Volume Pricing Structure

Exact pricing is not published. Request a formal quotation with order volume, destination port, and trade terms. Response within 1 business day.

Supply Stability

· Buffer stock maintained across KTA38-G series — confirm ex-stock availability at inquiry
· Established buyers receive priority allocation during supply constraints
· Mixed K38 series orders accepted in one shipment — reduces per-unit freight cost
· Framework agreement buyers receive forward inventory planning support

Documentation for Resale

· Manufacturer's / CCEC Factory Certificate · Form A / GSP Certificate of Origin
· Neutral outer crate packing on request · Back-to-back L/C accepted for established relationships
· Pre-shipment inspection (SGS / BV / Intertek) coordinated at buyer's cost

Distribution Arrangements

No formal published distributor program. Regional exclusivity considered case-by-case, subject to minimum annual volume commitment, territory agreement, and demonstrated market presence. Contact us directly — NDA framework provided before commercial terms are discussed.

FAQ

Q1: What is the prime power output of the Cummins KTA38-G2B?

The KTA38-G2B is rated at 711 kW (953 BHP) prime power at 1500 RPM (50 Hz) and 830 kW (1,112 BHP) at 1800 RPM (60 Hz). Standby ratings are 789 kW @ 1500 RPM and 920 kW @ 1800 RPM.

Q2: What generator set size does the KTA38-G2B support?

At 50 Hz with a 0.8 power factor, 711 kW prime output corresponds to approximately 888 kVA — making this engine the standard drive unit for 800–1,000 kVA generator sets. At 60 Hz, the 830 kW prime rating supports up to approximately 1,038 kVA.

Q3: Is the KTA38-G2B a genuine Cummins engine?

Yes — the KTA38-G2B is manufactured by Chongqing Cummins Engine Co., Ltd. (CCEC), a 50:50 joint venture between Cummins USA and Chongqing Machinery Group, established in 1995. Each unit carries a genuine Cummins engine serial number and CPL code traceable through the Cummins global parts system.

Q4: What is the difference between KTA38-G2B and KTA38-G2?

The KTA38-G2B is an updated variant of the KTA38-G2, sharing the same 38L V12 block but with revised configuration parameters. When ordering as a replacement, confirm the CPL code from your existing engine's dataplate to ensure parts interchangeability is maintained.

Q5: What is the difference between KTA38-G2B, KTA38-G1, and KTA38-G5?

All three share the same 38L V12 platform — the G1 produces 634 kW, the G2B 711 kW, and the G5 880 kW at 1500 RPM. The G2B sits in the mid-high output position, optimal for 800–1,000 kVA genset builds where the G1 is underpowered and the G5 exceeds alternator frame requirements.

Q6: Why do different websites show different KTA38-G2B specifications?

The KTA38-G2B has been in production for decades and appears across hundreds of supplier listings, many of which copy and propagate errors — particularly for compression ratio (correctly 14.5:1, not 15:1), fuel consumption (frequently misquoted unit or load point), and governor type. All specifications on this page have been verified against CCEC official documentation.

Q7: What fuel consumption should I expect from the KTA38-G2B?

At 50 Hz prime load (711 kW), fuel consumption is approximately 142 kg/h (~167 L/h). At 60 Hz standby load (920 kW), consumption rises to approximately 191 kg/h (~225 L/h). The widely cited "191 L/h" figure applies specifically to 60 Hz standby operation — not prime or 50 Hz running.

Q8: What is the KTA38-G2B compression ratio?

The compression ratio is 14.5:1 — confirmed across multiple CCEC official sources. Some supplier listings incorrectly state 15:1, which is the figure for the naturally aspirated KT38-G variant.

Q9: Does the KTA38-G2B meet emissions requirements in my country?

The KTA38-G2B is rated Euro II / EPA Tier II, which is accepted in most markets across Asia, the Middle East, Africa, and Latin America. It does not meet EU Stage IIIA, EU Stage V, or US EPA Tier 4 Final requirements — buyers in EU member states or North America should verify local stationary engine emission regulations before specifying.

Q10: Can I add an electronic governor to the KTA38-G2B?

The engine itself is mechanically governed (≤5% steady-state regulation). Many genset OEMs install an external electronic governor — such as the GAC EFC series — at the genset level to achieve tighter speed regulation (±0.25%) and enable parallel operation. This is a genset-level modification and does not affect the engine's base specification or warranty, provided installation follows Cummins guidelines.

Q11: What alternator is compatible with the KTA38-G2B?

Common pairings include the Stamford HCI634 series and Leroy Somer LSA 49.1 series for 800–1,000 kVA applications. Confirm flywheel housing (SAE No. 0 or SAE No. 00) and SAE flywheel size with your alternator supplier before finalizing the coupling specification.

Q12: What is the minimum cold start temperature for the KTA38-G2B?

Without auxiliary starting equipment, the engine cold-starts reliably to −12°C. Below this threshold, an engine block heater or pre-heating system is required — options are available as accessories.

Q13: How long does it take to receive a KTA38-G2B after ordering?

Standard lead time is 15–30 business days from order confirmation and deposit receipt. Ex-stock units ship faster — confirm current inventory availability at inquiry stage.

Q14: What documents are included with the engine shipment?

Standard documentation includes: Commercial Invoice, Packing List, Bill of Lading, Certificate of Origin, CCEC Factory Test Report, and English O&M Manual. Additional certifications (Form A, SGS inspection, SONCAP) are available on request — specify at order placement.

Q15: Can I order KTA38-G2B spare parts without buying an engine?

Yes — genuine CCEC/Cummins parts are available independently of engine orders, with no minimum order requirement on standard items. Provide your engine serial number and CPL code for accurate part number identification.

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