The Perkins 2506C-E15TAG3 is a 15.2 L, six-cylinder ElectropaK diesel engine for 1800 rpm / 60 Hz generator-set projects. The standard Perkins TAG3 performance sheet publishes 468 kWe / 585 kVA prime power and 517 kWe / 646 kVA standby power.
This EU 97/68/EC Stage II and U.S. EPA Tier 2 engine combines mechanically actuated unit injectors, full-authority electronic control, turbocharging and air-to-air charge cooling. Engine supply, permitted duty and replacement parts must be confirmed from the complete model designation, Build List, Engine Serial Number, emissions label and destination requirements.
- 15.2 L vertical inline six-cylinder diesel engine
- Turbocharged and air-to-air charge cooled
- 1800 rpm / 60 Hz generator-set configuration
- 468 kWe / 585 kVA prime output
- 517 kWe / 646 kVA standby output
- EU 97/68/EC Stage II / U.S. EPA Tier 2 emissions position
- ElectropaK package for generator integration
- MGDF8084 / MGD8084 references require complete Build List and ESN verification
Typical Lead Time: 3–4 weeks, subject to stock and final configuration.
Quotation: Configuration-based quote within 24 hours.
Supply Channel: Genuine Perkins products supported by first-tier distributor channels.
Export Experience: Supplied to customers in more than 30 countries.
Warranty: 12 months or the manufacturer-specified operating-hour limit, whichever occurs first, subject to contract terms.
Perkins 2506C-E15TAG3 Technical Specifications
| Parameter | Specification | Selection Note |
|---|---|---|
| Package | ElectropaK generator-drive engine | Engine package only; not a complete diesel generator set. |
| Configuration | 6 cylinders, vertical inline, four-stroke | Designed for constant-speed electric-power generation. |
| Displacement | 15.2 L (927 in³) | Commonly identified as the Perkins 15-litre platform. |
| Bore × stroke | 137 × 171 mm | Internal parts still require Build List and ESN verification. |
| Compression ratio | 16.0:1 | Do not use compression ratio alone to identify overhaul components. |
| Aspiration | Turbocharged and air-to-air charge cooled | Cooling must be checked for altitude, ambient temperature and enclosure airflow. |
| Combustion system | Direct injection | Fuel-system components must match the approved engine configuration. |
| Rotation | Anti-clockwise, viewed from flywheel end | Confirm coupling and alternator rotation during replacement projects. |
| Lubricating capacity | 62 L (16.4 US gal) | Use the applicable Operation and Maintenance Manual for service intervals. |
| Coolant capacity | 58 L (15.3 US gal) | Final installed-system volume may vary with radiator and piping. |
| Rated speed | 1800 rpm | TAG3 is the 60 Hz rating node covered by this page. |
| Emissions | EU 97/68/EC Stage II / U.S. EPA Tier 2 | Destination acceptance and supplied compliance documents must be confirmed. |
1800 rpm / 60 Hz Power Output
The standard TAG3 performance data includes both prime and standby ratings. A Build List supplied with stationary-emergency or ESE documentation may have additional operating restrictions, so the permitted duty must be confirmed from the emissions label and compliance certificate.
| Duty | Engine Power — Gross | Engine Power — Net | Typical Generator Output | Application |
|---|---|---|---|---|
| Prime | 534 kWm (approximately 716 hp) | 509 kWm (approximately 683 hp) | 468 kWe / 585 kVA | Variable-load generation where prime operation is permitted by the supplied certification. |
| Standby | 587 kWm (approximately 787 hp) | 562 kWm (approximately 754 hp) | 517 kWe / 646 kVA | Emergency power during failure of the normal utility supply. |
Generator output is typical and depends on alternator efficiency, power factor, controller settings, cooling, altitude and ambient derating.
Prime, Standby and ESE Duty Selection
| Duty / Classification | Operating Basis | Purchasing Control |
|---|---|---|
| Prime power | Variable load; published prime rating with an average load factor not exceeding 80%. A 10% overload is permitted for one hour in every 12 hours. | Use only where the supplied engine certification and destination regulations permit prime operation. |
| Standby power | Emergency operation during normal-power failure; up to 500 hours per year, of which up to 300 hours may be continuous. No overload is permitted. | Do not use the 646 kVA standby rating as a continuous production rating. |
| Stationary Emergency / ESE | A certification and market classification that may limit operation to emergency standby service. | Confirm the emissions label, compliance certificate, Build List and destination before describing MGDF8084 as ESE-only. |
The engine model and the permitted legal duty are not always identical. A standard TAG3 data sheet can publish prime and standby performance while a specific certified build is restricted to emergency operation.
Reference Fuel Consumption at 1800 rpm
| Load Point | Specific Fuel Consumption | Reference Fuel Flow | Selection Note |
|---|---|---|---|
| Standby power | 199 g/kWh | Approximately 135 L/h | Short-duration emergency rating; no overload permitted. |
| 100% prime power | 207 g/kWh | Approximately 128 L/h | Use only when prime operation is allowed for the supplied build. |
| 75% prime load | 212 g/kWh | Approximately 99 L/h | Useful for preliminary fuel-storage and operating-cost estimates. |
| 50% prime load | 201 g/kWh | Approximately 65 L/h | Actual field consumption varies with load profile and installation conditions. |
Fuel-consumption figures are reference values under standard test conditions. Do not size the fuel tank from the standby figure alone; use the expected load profile, required runtime and usable tank volume.
ElectropaK Equipment and Installation Data
| System | Standard Reference Equipment | Project Check |
|---|---|---|
| Air inlet | Mounted air filter | Confirm rain hood or alternative intake requirements. |
| Fuel system | Mechanically actuated electronically controlled unit injectors, fuel cooler, primary filter/water separator and Ecoplus elements | Confirm fuel quality, return-line arrangement and filtration scope. |
| Governing | ISO 8528-5 Class G3 with isochronous capability | Confirm controller communication and load-acceptance requirements. |
| Cooling | Gear-driven pump, belt-driven fan and loose-supplied radiator with air-to-air charge cooler | Validate enclosure airflow, altitude and ambient temperature. |
| Electrical | 24 V starter, 24 V 70 A charging alternator, engine-mounted ECM, looms and sensors | Verify starter quantity, charging circuit and panel interfaces. |
| Protection | Three-level engine protection system | Confirm shutdown, alarm and remote-monitoring integration. |
| Flywheel | SAE J620 size 14 high-inertia flywheel and SAE 1/2 housing | Verify coupling, alternator adaptor and torsional compatibility. |
| Lubrication | Wet sump, full-flow Ecoplus filter and integral oil cooler | Confirm service access and approved oil specification. |
Reference Package Dimensions
| Dimension | Reference Value | Project Note |
|---|---|---|
| Height | 1718 mm (68 in) | Final dimensions depend on selected options and installation equipment. |
| Length | 2657 mm (105 in) | Allow space for radiator, coupling, service access and lifting. |
| Width | 1120 mm (44 in) | Check enclosure ventilation and transport restrictions. |
| Dry weight | 1633 kg (3600 lb) | Confirm final shipping weight, crate and lifting plan before dispatch. |
Build List, ESN and ESE Verification
The Build List and Engine Serial Number control the fitted components, calibration, emissions record and parts matching. A generic model name is not sufficient for replacement-engine or major-parts approval.
| Identification Item | Reference | Why It Matters |
|---|---|---|
| Engine model | 2506C-E15TAG3 | Identifies the family and 1800 rpm TAG3 power node. |
| Build List | Complete code from the engine dataplate | Controls the exact production configuration and parts record. |
| Build List references in current records | MGDF8084 / MGD8084 | Must be checked against the actual dataplate; do not assume universal interchangeability. |
| Engine Serial Number | Complete ESN | Required to verify production date, supersessions and service parts. |
| Rated speed | 1800 rpm | Confirms the 60 Hz TAG3 configuration. |
| Emissions / duty label | Stage II / Tier 2 and any ESE wording | Determines destination acceptance and permitted operating duty. |
MGDF and MGD Build List References
| Reference | How to Use It | Control Required |
|---|---|---|
| MGDF8084 | Build List reference appearing in the supplied product record. | Confirm directly from the engine dataplate and Perkins parts record. |
| MGD8084 | Related reference that may appear in later or alternate records. | Do not describe it as identical solely because the numeric suffix matches. |
| MGDF5002 or other TAG3 records | May identify a different certification, market or configuration. | Never mix parts, duty claims or documentation without ESN verification. |
Before marketing the engine as EPA Stationary Emergency or ESE, obtain the emissions label photograph and the applicable compliance document. The model name alone does not prove emergency-only certification.
1500 rpm and 1800 rpm Family Compatibility
TAG1 / TAG2 and TAG3 / TAG4 Configurations
| Configuration | Typical Frequency | Selection Control |
|---|---|---|
| TAG1 / TAG2 | 1500 rpm / 50 Hz | Use the correct 1500 rpm model and calibration rather than converting a TAG3 by controller setting alone. |
| TAG3 / TAG4 | 1800 rpm / 60 Hz | Confirm required prime and standby output, certification, alternator and cooling configuration. |
| 2506A / 2506C / 2506D | Different emissions generations | Do not assume the same injectors, pistons, ECM, calibration or emissions documentation. |
Engine replacement requires more than matching displacement and mounting envelope. Verify flywheel housing, coupling, ECM, wiring, cooling, exhaust, alternator, controller, voltage and emissions acceptance.
Replacement Parts and Fitment Control
The following numbers are references from the supplied product records. They are useful for inquiry preparation but must not be treated as a universal parts list for every 2506C-E15TAG3.
Reference Part Numbers from Existing Records
| Item | Part | Reference Part Number | Fitment Status |
|---|---|---|---|
| 1 | Main bearing kit | KRP3122 | Reference only — verify by complete Build List and ESN |
| 2 | Thrust washer kit | KRP3206 | Reference only — verify by complete Build List and ESN |
| 3 | Cylinder liner | CH11180 | Reference only — verify by complete Build List and ESN |
| 4 | Exhaust valve | CH11022 | Reference only — verify by complete Build List and ESN |
| 5 | Intake valve | CH11021 | Reference only — verify by complete Build List and ESN |
| 6 | Valve guide | CH10724 | Reference only — verify by complete Build List and ESN |
| 7 | Outer valve spring | CH12798 | Reference only — verify by complete Build List and ESN |
| 8 | Inner valve spring | CH11489 | Reference only — verify by complete Build List and ESN |
| 9 | Connecting rod assembly | CH11507 | Reference only — verify by complete Build List and ESN |
| 10 | Big-end bearing kit | KRP3022 | Reference only — verify by complete Build List and ESN |
| 11 | Piston kit | T401923 | Reference only — verify by complete Build List and ESN |
| 12 | Piston ring kit | KRP3029 | Reference only — verify by complete Build List and ESN |
| 13 | Lift pump | KRP1721 | Reference only — verify by complete Build List and ESN |
| 14 | Starter motor | CH12807 / CH11089 / CH12045 | Reference only — verify by complete Build List and ESN |
| 15 | Drive belt | CH11950 | Reference only — verify by complete Build List and ESN |
| 16 | Oil filter assembly | KRP1719 | Reference only — verify by complete Build List and ESN |
| 17 | Charging alternator | CH12876 | Reference only — verify by complete Build List and ESN |
| 18 | Turbocharger gasket | CH11471 | Reference only — verify by complete Build List and ESN |
| 19 | Fuel filters | CH10930 / CH10931 | Reference only — verify by complete Build List and ESN |
Provide the complete Build List and ESN before ordering bearings, pistons, rings, starters, charging alternators, fuel-system parts or electronic components. Production changes and superseded numbers can affect fitment.


Supply, Logistics and Warranty
| Commercial Item | Typical Arrangement | Confirmation Required |
|---|---|---|
| Supply source | Genuine Perkins product supported through first-tier distributor channels | Confirm actual stock source and supplied documentation in the quotation. |
| Lead time | Typically 3–4 weeks | Subject to inventory, Build List, configuration and destination. |
| Quotation response | Within 24 hours after receiving complete requirements | Incomplete nameplate or shipping information may delay the quotation. |
| Export experience | Supply experience across more than 30 countries | Confirm destination-specific import and emissions requirements. |
| Documents | Commercial invoice, packing list, bill of lading and available origin documents | Certification and inspection documents must be listed in the order. |
| Shipping | FCL or LCL from an agreed China port with export crating | Confirm Incoterm, destination port, crate dimensions and final weight. |
| Pre-shipment check | Dataplate, ESN and configuration verification | Request test reports and photographs before dispatch when required. |
Warranty Records and Claim Information
| Warranty Item | Requirement | Important Exclusion |
|---|---|---|
| Coverage period | 12 months or the manufacturer-specified operating-hour limit, whichever occurs first | Final coverage follows the signed sales contract and supplied condition. |
| Commissioning records | Record installation date, ESN, operating hours, controller data and startup checks | Incorrect installation or commissioning can invalidate a claim. |
| Maintenance records | Keep oil, filter, coolant and service evidence | Normal wear items and neglected maintenance are not covered. |
| Fuel and fluids | Use approved fuel, lubricating oil and coolant | Contaminated fuel or incorrect fluids are excluded. |
| Claim submission | Provide ESN, hours, fault codes, photographs and diagnostic evidence | Do not dismantle or modify the engine before receiving written instructions. |
| Transit damage | Photograph before unpacking and report within three working days | Do not commission a visibly damaged unit. |


Information Required for a Quotation
| Information | Example / Requirement | Purpose |
|---|---|---|
| Engine model | 2506C-E15TAG3, including any E/U or ESE wording shown on the plate | Prevents loss of suffix and certification information. |
| Build List | Complete MGDF or MGD code | Confirms exact production configuration. |
| Engine Serial Number | Complete ESN and clear dataplate photograph | Required for parts and replacement-engine verification. |
| Required duty | Prime, standby or stationary-emergency/ESE | Ensures the offered configuration is legal and technically suitable. |
| Required output | 585 kVA prime or 646 kVA standby | Confirms the correct TAG rating and alternator selection. |
| Frequency and speed | 60 Hz / 1800 rpm | Prevents confusion with TAG1 or TAG2 1500 rpm products. |
| Existing installation | Alternator, controller, voltage, mounts, coupling and cooling photographs | Supports replacement compatibility review. |
| Destination | Country, port, emissions requirement and required documents | Controls certification, shipping and quotation terms. |
| Commercial terms | Quantity, Incoterm, required delivery date and inspection scope | Allows a complete configuration-based offer. |
Frequently Asked Questions
What output does the Perkins 2506C-E15TAG3 provide?
At 1800 rpm, the standard TAG3 performance sheet publishes 468 kWe / 585 kVA prime power and 517 kWe / 646 kVA standby power.
Is the 2506C-E15TAG3 a standby-only engine?
Not automatically. The standard Perkins TAG3 specification includes both prime and standby ratings. A particular Build List may have stationary-emergency or ESE restrictions, which must be confirmed from its emissions label and compliance documentation.
Which emissions standards apply?
The family specification is EU 97/68/EC Stage II and U.S. EPA Tier 2 for constant-speed applications. Market acceptance and any stationary-emergency classification must be checked for the supplied engine.
Can the engine be operated at 1500 rpm?
TAG3 is the 1800 rpm / 60 Hz rating node. For 1500 rpm / 50 Hz projects, verify the correct TAG1 or TAG2 model instead of relying on a controller-only speed change.
Are MGDF8084 and MGD8084 automatically interchangeable?
No. A matching numeric suffix does not prove that the complete configurations, calibrations, certifications and service parts are identical. Confirm the actual dataplate, complete Build List and ESN.
Can parts be ordered using only “2506C-E15TAG3”?
The model is not sufficient for controlled fitment. Submit the complete Build List and ESN, especially for pistons, bearings, injectors, ECM-related parts, starters and charging alternators.
What fuel and lubricating oil should be used?
The reference specification lists fuel meeting BS 2869 Part 2 Class A2 or ASTM D975 D2 and 15W-40 lubricating oil meeting API CI-4. Follow the applicable Operation and Maintenance Manual and local fuel requirements.
What does ElectropaK include?
ElectropaK is a generator-drive engine package with engine-mounted systems and a loose-supplied radiator. It is not a complete generator set; the AC alternator, base, controller, breaker, enclosure and project accessories must be confirmed separately.
Is the typical lead time three to four weeks?
Three to four weeks is the typical commercial reference, but final timing depends on stock, complete identification, configuration, inspection requirements and destination.
What warranty is provided?
The commercial reference is 12 months or the applicable manufacturer-specified operating-hour limit, whichever occurs first. The signed quotation and contract define the final coverage.
Request a 2506C-E15TAG3 Configuration Check
Send the engine dataplate, complete Build List, ESN, required duty, quantity and destination. For replacement projects, include photographs of the existing engine, alternator, controller, mounts, coupling and connection points.