Perkins 2806A-E18TAG3 ElectropaK Genset Engine – 600–750 kVA

The Perkins 2806A-E18TAG3 is an 18.1-litre, six-cylinder ElectropaK diesel engine for prime and standby generator sets. Within the wider Perkins generator-drive engine range, it uses parallel turbocharging, air-to-air charge cooling and direct injection to deliver 600–750 kVA across separate 1500 rpm and 1800 rpm factory configurations.

The 1500 rpm build is rated at 600 kVA prime and 650 kVA standby for 50 Hz applications. The 1800 rpm build is rated at 681 kVA prime and 750 kVA standby for 60 Hz applications. Both use the JGDF5006 / JGD5006 Build List family, but they are not field-switchable speed settings. The required frequency, rated speed, Build List and complete Engine Serial Number (ESN) should be confirmed before ordering.

Perkins 2806A-E18TAG3 Technical Specifications

Power Ratings at 1500 rpm and 1800 rpm

Generator output depends on the selected factory-rated speed. The following table separates gross engine power, net engine power and generator output so buyers can verify the correct 50 Hz or 60 Hz build before quotation.

Selecting the Correct Frequency and Rated Speed

The 1500 rpm version is intended for the specified 50 Hz configuration, while the 1800 rpm version is intended for 60 Hz generator systems. Although both versions belong to the same model and Build List family, they have different power ratings, fuel-consumption characteristics and factory calibrations. Changing the generator frequency does not make the two engine builds interchangeable.

At 1500 rpm prime duty, the stated fuel consumption is approximately 197–204 g/kWh across 50–110% load. At 1800 rpm prime duty, the stated range is approximately 202–210 g/kWh. The actual project assessment should consider expected load profile, annual operating hours, generator efficiency and the approved prime or standby duty.

Buyers evaluating an adjacent 2806A output level can compare the Perkins 2806A-E18TAG2 generator-drive engine. The TAG2 and TAG3 models should not be treated as direct substitutes without checking the complete Build List, ESN, rated speed and generator requirements.

Build List Identification and Model Matching

JGDF5006 and JGD5006 refer to the same 2806A-E18TAG3 engine specification. JGDF5006 is the original Perkins designation assigned in 2009, while JGD5006 is the updated designation used for engines from later production batches. The change identifies the production period; parts compatibility remains the same across these two designations.

2806A/C-E18TAG3 Generation Index

The “A” prefix identifies the Fuel Optimised, non-emissions-regulated version. The “C” prefix identifies the regulated Tier 2 / EU Stage II version described in the supplied product information. The TAG3 suffix represents the power level, but ECM calibration, fuel-system settings and other configuration details can differ between the A and C variants. Build List and ESN verification is therefore required before confirming an engine or component replacement.

Information to Record from the Engine Nameplate

The Build List is stamped on the engine nameplate, normally mounted on the rocker cover or timing case. Record the following information before requesting a quotation:

• Build List: JGDF5006 or JGD5006
• Complete Engine Serial Number (ESN)
• Required rated speed: 1500 rpm or 1800 rpm
• Required generator frequency: 50 Hz or 60 Hz
• Prime or standby operating requirement

The model name identifies the engine family, but the Build List and ESN identify the exact factory specification. Ordering by “2806A-E18TAG3” alone may not be sufficient to confirm calibration, wiring, injector, piston, bearing or other configuration-specific components.

Generator-Set Integration and Published kVA Ratings

The 2806A-E18TAG3 is listed for use in FG Wilson P750-1 and P750-3 generator sets in the 681.3–750 kVA range and may also be integrated by other generator-set manufacturers. The engine model alone does not define the complete genset output because alternator efficiency, alternator design, cooling conditions and the OEM rating method can affect the published kVA value.

When replacing an engine in an existing generator set, confirm the genset manufacturer, model, alternator, frequency, rated voltage, control system, original Build List and ESN. The generator OEM data sheet and the engine technical specification should be reviewed together before approving a replacement.

Replacement Parts for JGD/JGDF5006

The table lists original Perkins replacement-part references provided for the 2806A-E18TAG3 Build List JGD/JGDF5006. Other Perkins engine parts can be reviewed by category, but the complete ESN should be supplied before any part number is confirmed for an individual engine.

Full parts support is stated for Build List JGD/JGDF5006. Because pistons, injectors, bearings and other internal components can be Build-List-specific, the part references should be checked against the complete ESN before purchase.

Procurement, Export and Delivery

Engine availability and final pricing depend on the selected rated-speed configuration, quantity and delivery terms. The typical lead time is 3–4 weeks, while the stated quotation time is within 24 hours after the required technical and commercial information has been received.

Warranty and After-Sales Support

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

Warranty Exclusions

1. Damage caused by incorrect installation, improper commissioning or failure to follow the Perkins Operation and Maintenance Manual applicable to JGD/JGDF5006.
2. Normal-consumption items, including filters, belts, coolant and lubricants.
3. Damage caused by contaminated fuel, an incorrect lubricant specification or neglected cooling-system maintenance.
4. Modifications or repairs completed by non-authorised personnel during the warranty period.
5. Transit damage not reported within three working days of delivery. The shipment should be inspected on receipt, and visible damage should be recorded before the delivery receipt is signed.

Warranty Claim Process

1. Document the fault: Record the complete ESN, operating hours, fault symptoms and photographs of the affected area.
2. Submit the claim within the warranty period: Send the documentation by email or WhatsApp and include the ESN in the subject line.
3. Technical review: The engineering team reviews the submitted information within two business days and advises on the probable cause and next steps.
4. Confirm the resolution: Depending on the assessment, the response may include replacement parts, coordinated repair support or an engine exchange. The proposed resolution is confirmed in writing before action is taken.

Technical and Parts Support

• Technical inquiries by email or WhatsApp: response within one business day
• Parts identification for JGD/JGDF5006: available on request
• Operation and Maintenance Manual and wiring diagrams: available on request
• Remote fault diagnosis: available by email or video call

Transit Damage Procedure

Photograph visible damage before unpacking, record it on the delivery receipt before signing and notify the supplier within three working days with supporting photographs. Do not commission a damaged engine before the damage report has been completed.

Perkins 2806A-E18TAG3 FAQ

What generator output can the 2806A-E18TAG3 support?

The 1500 rpm version is rated at 600 kVA prime and 650 kVA standby. The 1800 rpm version is rated at 681 kVA prime and 750 kVA standby. The correct version depends on the required frequency, operating duty and complete generator-set configuration.

What does Fuel Optimised mean?

The “A” designation identifies a non-emissions-regulated build intended for markets without mandatory exhaust-emissions certification. It is not intended for markets requiring EU Stage, U.S. EPA Tier or another regulated emissions standard unless the project requirements confirm otherwise.

What is the difference between the 2806A-E18TAG3 and 2806C-E18TAG3?

The supplied information identifies the A version as Fuel Optimised and the C version as Tier 2 / EU Stage II compliant. Although they share the 2800 Series core and TAG3 output level, calibration and configuration details can differ. They should not be treated as interchangeable without Build List and ESN verification.

Why can two generator manufacturers publish different kVA ratings for this engine?

Different alternator efficiencies, cooling arrangements and OEM rating methods can produce different published generator outputs from the same base engine. Use the generator manufacturer’s data sheet together with the engine specification when confirming a replacement.

What information is required to order replacement parts?

Provide the complete engine model, Build List JGDF5006 or JGD5006 and the full ESN. A photograph of the engine nameplate can also help confirm the correct piston, injector, bearing, gasket and other configuration-specific parts.

Request a Configuration-Based Quote

Submit the following information through the contact and quotation page to confirm the correct engine build, availability, export documents and delivery terms:

• Build List: JGD5006 or JGDF5006
• Complete Engine Serial Number when replacing an existing engine
• Required rated speed: 1500 rpm or 1800 rpm
• Required frequency: 50 Hz or 60 Hz
• Prime or standby operating requirement
• Required quantity and delivery terms
• Destination port and required export documentation