The Perkins 2806A-E18TAG1A is an 18.1-litre, six-cylinder ElectropaK diesel engine for prime and standby generator sets. Within the broader Perkins generator-drive engine range, it is built on the Perkins 2800 Series industrial platform with parallel turbocharging, air-to-air aftercooling and direct injection.
Two separate rated-speed versions are available under Build List JGAF5004 / JGA5004: 1500 rpm for 50 Hz applications and 1800 rpm for 60 Hz applications. The 1500 rpm build is rated at 600 kVA prime and 660 kVA standby, while the 1800 rpm build is rated at 625 kVA prime and 687 kVA standby. These versions are not field-switchable, so rated speed, Build List and Engine Serial Number (ESN) should be confirmed before ordering.
Perkins 2806A-E18TAG1A Technical Specifications
| Parameter | Value |
|---|---|
| Configuration | ElectropaK |
| Cylinders | 6, vertical in-line |
| Displacement | 18.1 L (1104 in³) |
| Bore × Stroke | 145 × 183 mm |
| Aspiration | Parallel turbocharged, air-to-air aftercooled |
| Combustion System | Direct injection |
| Compression Ratio | 14.5:1 |
| Rotation (Viewed from Flywheel) | Anti-clockwise |
| Total Lubricating Oil Capacity | 62 L (16.4 US gal) |
| Cooling System | Watercooled |
| Total Coolant Capacity | 61 L (16.1 US gal) |
| Dry Weight | 2050 kg (4520 lb) |
| Dimensions (H × L × W) | 1808 × 2545 × 1536 mm |
| Wiring Harness to Single Customer Interface | Not integrated — connector wiring to ECM only |
Rated Output at 1500 rpm and 1800 rpm
Output depends on the selected factory-rated speed. The table separates gross engine power, net engine power and generator output so buyers can confirm the correct 50 Hz or 60 Hz configuration before quotation.
| Speed | Rating | Engine Power (Gross) | Engine Power (Net) | Generator Output (kVA) | Generator Output (kWe) |
|---|---|---|---|---|---|
| 1500 rpm | Prime | 540 kW (724 hp) | 522 kW (700 hp) | 600 | 480 |
| 1500 rpm | Standby | 593 kW (795 hp) | 574 kW (770 hp) | 660 | 528 |
| 1800 rpm | Prime | 568 kW (762 hp) | 543 kW (728 hp) | 625 | 500 |
| 1800 rpm | Standby | 623 kW (835 hp) | 598 kW (802 hp) | 687 | 550 |
Build List Identification and Model Matching
JGAF5004 and JGA5004 refer to the same 2806A-E18TAG1A engine specification. JGAF5004 is the original Perkins designation assigned in 2009, while JGA5004 is the updated designation used on later production batches. The designation change reflects the production batch; parts compatibility remains identical across the two Build Lists.
| Build List | Identification Notes |
|---|---|
| JGAF5004 | Original designation assigned by Perkins (2009) |
| JGA5004 | Updated designation used for engines produced in later batches |
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. Before requesting an engine or replacement-parts quotation, record:
- Build List: JGAF5004 or JGA5004
- Complete Engine Serial Number (ESN)
- Rated speed: 1500 rpm or 1800 rpm
Providing both the Build List and ESN allows the supplied configuration and part numbers to be checked against the original engine record before order commitment. Buyers can review the wider Perkins engine parts range as a category reference, but the ESN remains necessary for exact part-number confirmation.
2806A/C-E18TAG1A Generation Index
| Model | Build List | 1500 rpm (50 Hz) | 1800 rpm (60 Hz) | 50 Hz Prime / Standby (kVA) | 60 Hz Prime / Standby (kVA) |
|---|---|---|---|---|---|
| 2806A-E18TAG1A | JGA / JGAF5004 | ✓ | ✓ | 600 / 660 | 625 / 687 |
| 2806C-E18TAG1A | JGA / JGAF5087 | ✓ | — | — | — |
| 2806C-E18TAG1A (E/U) | JGA / JGAF8027 | ✓ | ✓ | 591 / 650 | 625 / 687 |
ZEB Power offers complete engines and replacement parts for the three G1-range models shown above. The exact engine model, Build List and ESN must be matched before confirming interchangeability or parts supply.
Common Replacement Parts for JGA/JGAF5004
The following original Perkins replacement-part references are listed for the 2806A-E18TAG1A Build List JGA/JGAF5004. Full parts support is available for this Build List, but the ESN should be supplied to confirm the exact part number for the individual engine. For top-end repair planning, the Perkins KRP1546 top overhaul kit is a related 2806 TAG1/TAG2 reference; applicability to a specific JGA/JGAF5004 engine must still be verified by model and ESN.
| Item | Part Name | Part Number |
|---|---|---|
| 1 | Intake Valve | CH11021 |
| 2 | Exhaust Valve | CH11022 |
| 3 | Valve Spring Inner | CH11489 |
| 4 | Valve Spring Outer | CH12798 / CH11487 |
| 5 | Valve Collet | CH10019 |
| 6 | Camshaft Bush | CH11228 |
| 7 | Main Bearing Kit | KRP3122 / KRP3118 |
| 8 | Thrust Washer Kit | KRP3206 |
| 9 | Connecting Rod Assembly | CH11507 |
| 10 | Big End Bearing Kit | KRP3022 |
| 11 | Piston Kit | KRP3026 / KRP3032 |
| 12 | Piston Ring Kit | KRP3021 KRP3033 |
| 13 | Starter Motor | CH11441 |
| 14 | Belt | CH12789 |
| 15 | Injector | CH12071 / CH12341 |
| 16 | Oil Pump | CH10860 |
| 17 | Oil Filter | CH10929 |
| 18 | Water Pump Kit | KRP1715 |
Procurement, Export and Delivery
Engine supply is based on the required rated speed, Build List, quantity and delivery terms. Availability should be confirmed at the time of inquiry because the typical lead time is 3–4 weeks.
| Procurement Item | Details |
|---|---|
| Supply Source | Genuine Perkins through a first-tier authorised distributor |
| Quotation | Within 24 hours based on configuration, quantity and delivery terms |
| Typical Lead Time | 3–4 weeks after order confirmation |
| Export Documentation | Commercial invoice, packing list, bill of lading and certificate of origin available as standard |
| Shipping | FCL or LCL from Shenzhen, Guangzhou or Shanghai; crating and export packaging included |
| Pre-Shipment Verification | ESN and nameplate verification completed before dispatch; engine test report available on request |
| Supply Experience | Exported to more than 30 countries |
Warranty and After-Sales Support
The stated warranty period is 12 months or the manufacturer-specified operating hours from the date of commissioning, whichever comes first.
Warranty Exclusions
- Damage caused by incorrect installation, improper commissioning or failure to follow the Perkins Operation and Maintenance Manual for JGA/JGAF5004.
- Normal-consumption items, including filters, belts, coolant and lubricants.
- Damage caused by contaminated fuel, an incorrect lubricant specification or neglected cooling-system maintenance.
- Modifications or repairs completed by non-authorised personnel during the warranty period.
- Transit damage not reported within three working days of delivery. Shipments should be inspected on receipt, and visible damage should be documented before the delivery receipt is signed.
Warranty Claim Process
- Document the fault: Record the ESN, operating hours, fault symptoms and photographs of the affected area.
- Submit the claim within the warranty period: Send the documentation by email or WhatsApp and include the ESN in the subject line.
- Technical review: The engineering team reviews the submission within two business days and advises on the probable cause and next steps.
- 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 JGA/JGAF5004: 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, note 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-E18TAG1A FAQ
What is the difference between the 1500 rpm and 1800 rpm versions?
Both versions use Build List JGAF5004 / JGA5004, but they are separate factory builds and cannot be switched between rated speeds in the field. The 1500 rpm version is rated at 600 kVA prime and 660 kVA standby; the 1800 rpm version is rated at 625 kVA prime and 687 kVA standby.
What does the “A” prefix mean in 2806A-E18TAG1A?
The “A” prefix identifies the Fuel Optimised, non-emissions-regulated version of the engine, distinguishing it from regulated emissions variants intended for other markets.
Why does the engine use parallel turbocharging?
The parallel turbocharging system, combined with air-to-air aftercooling, supports high power density and more consistent output at altitude than a comparable single-turbo arrangement.
What is the fuel consumption of the 2806A-E18TAG1A?
At prime rating, stated fuel consumption is approximately 199–203 g/kWh across 50–110% load at 1500 rpm and approximately 201–210 g/kWh at 1800 rpm.
Is a single customer-interface wiring harness included?
No. The standard ElectropaK configuration includes connector wiring to the engine ECM only. A wiring harness integrated to a single customer interface is not included as standard.
How should the correct Build List and configuration be confirmed?
Provide the Build List, JGAF5004 or JGA5004, together with the complete ESN and required rated speed. These identifiers can be checked against the original build record before the quotation is finalised.
Is an Electro unit version available?
No Electro unit variant is offered under Build List JGAF5004. This model is supplied in ElectropaK configuration.
Request a Configuration-Based Quote
To confirm the correct engine specification, availability, export documents and delivery terms through the contact and quotation page, provide:
- Build List: JGA5004 or JGAF5004
- Complete Engine Serial Number when replacing an existing engine
- Required rated speed: 1500 rpm or 1800 rpm
- Required quantity and delivery terms
- Destination port and required export documentation
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