Perkins 4006-23TAG3A Genset Engine – 800–900 kVA

The Perkins 4006-23TAG3A is a 22.921-litre, six-cylinder diesel engine for 1500 rpm / 50 Hz generator sets requiring 800 kVA prime or 900 kVA standby output. It belongs to the heavy-duty Perkins 4000 Series and uses turbocharging, air-to-air charge cooling, individual four-valve cylinder heads and unit fuel injectors.

The principal specification on this page is linked to Build Lists DGDF6034, DGDF0021 and DGDF1392. All three are identified as the same 1500 rpm engine configuration. Regional, TA Luft and 1800 rpm versions also exist under the 4006-23TAG3A model name, but their Build Lists and approved ratings must be checked separately.

800–900 kVA at 1500 rpm

The published generator-set ratings for the main 4006-23TAG3A configuration are 800 kVA prime and 900 kVA standby at 1500 rpm. No 1800 rpm output is provided for the principal DGDF6034 / DGDF0021 / DGDF1392 specification.

Prime and Standby Are Different Operating Duties

The 800 kVA prime rating is intended for the approved variable-load operating profile of the complete generator set. The 900 kVA standby rating is the higher emergency-power level and is not a substitute for a prime rating in applications requiring regular operation.

Final genset output also depends on the selected alternator, voltage, power factor, cooling configuration, site conditions and the generator-set manufacturer’s approved package rating.

Where TAG3A Sits Above TAG2A

The Perkins 4006-23TAG2A and TAG3A share the same basic six-cylinder, 22.921-litre 4006 architecture. Their published output positions are different.

At 1500 rpm, TAG3A adds 50 kVA of prime output and 75 kVA of standby output over the published TAG2A rating. This output increase does not make TAG3A an automatic replacement for TAG2A.

Build List, fuel-system calibration, radiator, alternator coupling, exhaust position, control system and package dimensions should be reviewed before proposing an upgrade from TAG2A to TAG3A.

Main Build Lists: DGDF6034, DGDF0021 and DGDF1392

DGDF6034, DGDF0021 and DGDF1392 are listed as original Perkins Build List designations assigned in 2008. DGD6034, DGD0021 and DGD1392 are the corresponding shortened designations used for engines from later production batches.

The supplied information treats these original and updated designations as the same engine specification with identical stated parts compatibility. The complete Engine Serial Number remains necessary because it identifies the production record of the individual engine.

Information to Record from the Nameplate

• Complete engine model: 4006-23TAG3A
• Build List beginning with DGD or DGDF
• Complete Engine Serial Number
• Rated speed
• Original generator-set manufacturer and model
• Cooling configuration when known

The nameplate is normally located on the rocker-cover or timing-case area. A clear photograph of the complete plate is preferable to a manually copied serial number.

Not Every TAG3A Build List Has the Same Application

The 4006-23TAG3A name covers several regional, speed and emissions-specific configurations. Ratings from the main DGDF6034 / DGDF0021 / DGDF1392 specification should not be transferred to another Build List without supporting Perkins documentation.

A quote for DGDF8140S, DGDF6034S or DGDF6386 should be based on the documentation for that exact Build List. The 800/900 kVA rating should not be assumed for those versions merely because the base engine model is 4006-23TAG3A.

TA Luft Status Must Be Confirmed by Build List

The supplied version table identifies DGDF8140S as a TA LUFT configuration for India at 1500 rpm. It does not establish that every 4006-23TAG3A engine carries the same emissions status.

Emissions documentation should be confirmed against the exact Build List, manufacturing record and destination requirements. The model name alone is not sufficient evidence for customs, tender or regulatory approval.

Mechanical Platform and Installation Envelope

The 4006-23TAG3A is a large industrial engine package weighing 2524 kg dry. Foundation design, lifting equipment, enclosure dimensions, radiator airflow and maintenance clearances should be established before the engine is released for a new genset or replacement project.

Individual Four-Valve Cylinder Heads

Each cylinder has an individually mounted four-valve cylinder head. This design supports gas flow through the engine and allows cylinder-level head service without treating the complete in-line engine as one cylinder-head assembly.

Although the 4000 Series uses shared design principles across its 6-, 8-, 12- and 16-cylinder platforms, component commonality should not be interpreted as universal interchangeability. Individual parts must still be checked by model, Build List and ESN.

Unit Fuel Injectors and Combustion Control

The engine uses unit fuel injectors for fuel atomisation and controlled combustion. The injector reference listed for the main TAG3A Build List family is 858/25, which differs from the injector reference shown for the TAG2A.

Injector selection should therefore not be based on the shared 4006 engine architecture. The Build List and complete ESN should be checked before an injector, fuel-system component or calibration-related part is released.

Temperate and Tropical Cooling Options

The engine is offered with temperate and tropical cooling configurations. The supplied information states that cooling systems are available for ambient temperatures up to 50°C.

A tropical cooling package should not be assumed from the model name. The included radiator and its ambient capability must be confirmed in the final engine configuration.

Digital Governing and Genset Control

The supplied information identifies digital governing to ISO 8528-5 Class G2 with isochronous capability. This establishes the stated governing direction but does not complete the control-system design of the generator set.

Controller compatibility, start and stop logic, protection thresholds, speed signals, synchronization, load sharing and alarm mapping should be confirmed with the generator-set control panel before commissioning.

Parallel Operation

Generator sets powered by the 4006-23TAG3A can operate in parallel when the complete units have compatible controllers, alternators, automatic voltage regulators, synchronization equipment, protection settings and load-sharing functions.

Parallel capability is a property of the complete generator system rather than the engine model alone. The maximum load step, synchronization sequence and operating logic should be verified during commissioning.

Prime Fuel Consumption

At 1500 rpm prime power, the supplied fuel-consumption reference is approximately 172 L/hr or 210 g/kWh. These are two ways of expressing the stated consumption at the same operating point.

Actual site consumption depends on fuel properties, alternator efficiency, ambient conditions, engine condition and delivered electrical load. The published value should be used as a rating reference rather than a guaranteed fuel-use figure for every installation.

Maintenance Baseline

The stated standard oil-change interval is 500 operating hours. This interval applies to standard operating conditions and may need adjustment for severe loads, high dust exposure, poor fuel quality, prolonged low-load operation or abnormal oil-analysis results.

Original Perkins Parts for the Main TAG3A Build List

The following references are listed as original Perkins components for the DGD/DGDF6034 Build List family. Additional Perkins engine parts can be reviewed by component category, but final confirmation should be based on the exact Build List and complete ESN.

Several components have more than one listed reference. Do not select between alternatives by appearance or dimensions alone. Exact part numbers and quantities should be released only after Build List and ESN verification.

Procurement and Export Release

The stated lead time is normally 3–4 weeks, subject to availability confirmation at the inquiry stage. The supplied information identifies FOB Shanghai as the stated shipping term for the standard offer.

Warranty and Technical Claim Review

The stated warranty period is 12 months or the manufacturer-specified operating hours from the commissioning date, whichever occurs first.

Conditions Outside Warranty Coverage

• Incorrect installation or improper commissioning
• Failure to follow the applicable Perkins Operation and Maintenance Manual
• Normal consumption of filters, belts, coolant and lubricants
• Damage caused by contaminated fuel or an incorrect lubricant specification
• Cooling-system neglect
• Unauthorised modifications or repairs during the warranty period
• Transit damage not reported within three working days of delivery

Information Required for Technical Review

• Complete Build List and ESN
• Current operating hours
• Fault description and operating conditions
• Available fault codes
• Photographs of the affected area
• Relevant commissioning and maintenance records

The stated technical-review period is within two business days after the required information has been received. Depending on the assessment, the proposed response may include replacement parts, coordinated repair support or an engine exchange.

Transit Damage Procedure

Inspect the shipment before signing the delivery receipt. Photograph visible damage before unpacking, record it on the receipt and notify the supplier within three working days. Do not commission a visibly damaged engine before the damage report has been reviewed.

Perkins 4006-23TAG3A FAQ

Is the principal TAG3A configuration a 50 Hz or 60 Hz engine?

The main DGDF6034 / DGDF0021 / DGDF1392 configuration is listed at 1500 rpm for 50 Hz generator sets. A separate 1800 rpm Build List, DGDF6386, exists, but its output is not provided in the supplied page.

Are DGDF6034, DGDF0021 and DGDF1392 interchangeable?

The supplied information identifies all three as the same 1500 rpm engine specification. Their shortened DGD designations are also listed for later production batches. The complete ESN is still required for final verification.

What is the difference between TAG3A and TAG2A?

At 1500 rpm, TAG3A is rated at 800 kVA prime and 900 kVA standby, compared with 750 and 825 kVA for TAG2A. The two models have different Build List families and should not be treated as automatic replacements.

Is every TAG3A engine TA Luft rated?

No general claim should be made from the model name alone. The supplied version table identifies DGDF8140S as a specific TA LUFT and India configuration.

Can the engine be supplied for high ambient temperatures?

Temperate and tropical cooling configurations are available, and the supplied information refers to cooling systems for ambient temperatures up to 50°C. The exact radiator must be confirmed in the engine configuration.

What is the fuel consumption at prime power?

The supplied reference at 1500 rpm prime power is approximately 172 L/hr or 210 g/kWh. Actual site consumption depends on the complete generator-set operating conditions.

What is the standard oil-change interval?

The stated standard interval is 500 operating hours under standard conditions. Severe-duty operation or oil-analysis results may require a different interval.

What information is required for an engine or parts quotation?

Provide the complete model, Build List, ESN, rated speed, required duty, cooling configuration, original generator-set information and destination requirements.

Request a 4006-23TAG3A Configuration Review

Submit the following through the engine inquiry and quotation page:

• Build List beginning with DGD or DGDF
• Complete ESN or a clear nameplate photograph
• Required rated speed and generator frequency
• Prime or standby duty requirement
• Temperate or tropical cooling requirement
• Maximum site ambient temperature and altitude
• Alternator, voltage and power-factor requirements
• Generator-set manufacturer and model for a replacement project
• Required quantity, delivery terms and destination port
• Required emissions, export and test documentation