The Perkins 4012-46TAG3A is a 12-cylinder, 45.842L turbocharged and air-to-air chargecooled diesel engine within the Perkins 4000 Series, engineered for the power generation standby market sector. Individual 4-valve cylinder heads and unit fuel injectors deliver optimised gas flow and fine fuel atomisation, supporting Prime, Standby and Continuous duty ratings up to 1880kVA. As part of the 4000 Series family, the engine shares component commonality with other 4000 Series models, supporting reduced stocking levels for fleet operators.
4012-46TAG3A Engine Technical Specifications
| Parameter | Value |
|---|---|
| Configuration | Electro unit and ElectropaK |
| Cylinders | 12, 60° vee |
| Displacement | 45.842 L (2979 in³) |
| Aspiration | Turbocharged and air-to-air chargecooled |
| Bore × Stroke | 160 × 190 mm (6.3 × 7.5 in) |
| Combustion System | Direct injection |
| Compression Ratio | 12.8:1 |
| Fuel Injection Control | Actuator + electronic governor (no engine ECM) |
| Exhaust Aftertreatment | N/A |
| Rotation | Anti-clockwise, viewed from flywheel end |
| Total Lubricating Oil Capacity | 157.5 L (41.6 US gal) |
| Cooling System | Watercooled |
| Total Coolant Capacity | 233 L (61.6 US gal) |
4012-46TAG3A Engine Power Output
| Speed | Rating | Engine Power (Gross) | Engine Power (Net) | Generator Output (kVA) | Generator Output (kWe) |
|---|---|---|---|---|---|
| 1500 rpm | Prime | 1521 kW (2040 hp) | 1440 kW (1931 hp) | 1710 | 1368 |
| 1500 rpm | Standby | 1664 kW (2231 hp) | 1583 kW (2123 hp) | 1880 | 1504 |
Build List & Different Versions
4012-46TAG3A Build List
| Build List | Notes |
|---|---|
| DGDM6134 / DGDM0083 / DGDM1419 | Original designation assigned by Perkins (2008) |
| DGD6134 / DGD0083 / DGD1419 | Updated designation for engines produced in later batches |
Both Build Lists refer to the same engine specification. The difference is production batch only — parts compatibility is identical across both designations.
4012-46TAG3A Engine - Different Versions
| Model | Build List | 1500 rpm (50 Hz) | 1800 rpm (60 Hz) | Prime / Standby (kVA) | Prime / Standby (kVA) |
|---|---|---|---|---|---|
| 4012-46TAG3A(E/U) (1500rpm) | DGDM6134 / DGDM0083 / DGDM1419 | ✓ | 1710 / 1880 | ||
| 4012-46TAG3A(E/U) (1500rpm) (India) | DGDM6134S / DGDM0083S / DGDM1419S | ✓ | |||
| 4012-46TAG3A(India) (1800rpm) | DGDM6059S / DGDM1068S | ✓ | |||
| 4012-46TAG3A(E/P) (1800rpm) | DGDM6051 | ✓ |
ZEB Power currently offers complete engines and parts for these models in the G3 power range.
Build List Identification Guide
The Build List is stamped on the engine nameplate, mounted on the rocker cover or timing case. Locate the nameplate and read the alphanumeric string beginning with DGD or DGDM.
Nameplate fields to record before ordering:
· Build List (e.g. DGDM6134 or DGD6134)
· Engine Serial Number (ESN)
· Rated speed (1500 rpm)
Provide both the Build List and ESN when requesting a quote. This allows us to confirm exact specification match before order commitment.
4012-46TAG3A Common Replacement Parts
| Item | Part Name | Part Number | Quality |
|---|---|---|---|
| 1 | Intake And Exhaust Valve | SE7AJ/14 | Original Perkins |
| 2 | Small End Bush | SE91B/7 or Y01/00023 | Original Perkins |
| 3 | Valve Guide | T401899 | Original Perkins |
| 4 | Valve Spring | 365/472 | Original Perkins |
| 5 | Valve Collet | HW7B/18 | Original Perkins |
| 6 | Fuel Filter | SE429B/4 or 4759205 | Original Perkins |
| 7 | Exhaust Manifold | 12SE15U,12SE15Y,12SE15AA,12SE15W | Original Perkins |
| 8 | Air Filter Assembly | SEV551N | Original Perkins |
| 9 | Connecting Rod Assembly | SEV91Q | Original Perkins |
| 10 | Big End Bearing Kit | SE91AA/3M | Original Perkins |
| 11 | Piston And Ring Kit | SE901BA | Original Perkins |
| 12 | Piston Ring Kit | 359/552 | Original Perkins |
| 13 | Starter Motor | 701/137 | Original Perkins |
| 14 | Alternator Belt | 541/398 | Original Perkins |
| 15 | Injector | 858/35 | Original Perkins |
| 16 | Oil Pump | SEV116S or SEV116AC | Original Perkins |
| 17 | Oil Filter | 4324909 | Original Perkins |
| 18 | Water Pump Kit | SE145AY | Original Perkins |
Full parts availability for Build List DGD / DGDM6134. Provide ESN for exact part number confirmation.
Procurement & Logistics
· Supply source: Genuine Perkins via first-tier authorised distributor
· Stock status: Confirm availability at inquiry — lead time typically 3–4 weeks
· Export documentation: Commercial invoice, packing list, bill of lading, certificate of origin available as standard
· Shipping: FCL/LCL from Shenzhen/Guangzhou/Shanghai; crating and export packaging included
· Pre-shipment: ESN + nameplate verification completed before dispatch; engine test report available on request




Warranty & After-Sales
Warranty: 12 months or manufacturer-specified hours from date of commissioning, whichever comes first
What the Warranty Does Not Cover
1.Damage resulting from incorrect installation, improper commissioning, or failure to follow the Perkins Operation and Maintenance Manual for DGD /DGDM6134
2.Wear items consumed during normal operation: filters, belts, coolant, lubricants
3.Damage caused by contaminated fuel, incorrect lubricant specification, or coolant system neglect
4.Modifications or repairs carried out by non-authorized personnel during the warranty period
5.Transit damage not reported within 3 working days of delivery — inspect all shipments on receipt and document any damage before signing
Warranty Claim Process
① Document the fault — Record engine serial number, operating hours, fault symptoms, and photographs of the affected area.
② Notify us within warranty period — Submit documentation via email or WhatsApp. Include engine serial number in the subject line.
③ Technical review — Our engineering team reviews the submission within 2 business days and advises on root cause and next steps.
④ Resolution — Depending on fault assessment: replacement parts dispatched, repair support coordinated, or engine exchange arranged. Resolution path confirmed in writing before any action is taken.
After-Sales Support
- Technical enquiries: Email / WhatsApp — 1 business day response
- Parts identification (DGD /DGDM6134): Available on request
- O&M Manual & wiring diagrams: Available on request
- Remote fault diagnosis: Email or video call
Transit Damage Protocol
Photograph damage before unpacking · Note on delivery receipt before signing · Notify us within 3 working days with photos · Do not commission a damaged unit before completing the damage report.
FAQ
Q1: What is the difference between Prime and Standby power rating for the 4012-46TAG3A?
Prime power (1710kVA) supports variable loads with an average load factor not exceeding 80% over 24 hours, with 10% overload permitted for 1 hour in every 12. Standby power (1880kVA) is for use during main power network failure, limited to 500 hours annual usage with no overload permitted.
Q2: How often does the 4012-46TAG3A require oil and fuel filter service?
As standard, service intervals for oil and fuel are set at 500 hours under all operating conditions.
Q3: Does the 4012-46TAG3A come in a 1800rpm version, and is it interchangeable with this 1500rpm build?
The 4012-46TAG3A model designation exists in both 1500rpm and 1800rpm variants across the Perkins 4012 range, but they are separate engine builds and not field-interchangeable. This page covers the confirmed 1500rpm configuration (Build List DGDM6134/DGDM0083/DGDM1419).
Q4: What Build List numbers apply to the 4012-46TAG3A and are they interchangeable?
The confirmed Build Lists for this 1500rpm configuration are DGDM6134, DGDM0083 and DGDM1419, which are compatible equivalents. Always verify the exact Build List against your engine dataplate before ordering parts.
Q5: What information is required to confirm compatibility before placing an order?
Provide the Build List, ESN, required rated speed and destination port. This allows exact configuration and parts compatibility to be confirmed prior to quotation.
Q6: Is the 4012-46TAG3A a fully electronically controlled (ECM) engine?
No — the engine ECM and wiring harness to ECM are listed as N/A in the standard equipment specification. Speed and fuel delivery are managed through electronic governor and actuator control rather than a full engine-mounted ECM.
Q7: What is the difference between the temperate and tropical cooling package for this engine?
The temperate package measures 2269 x 3915 x 2200mm with a dry weight of 5690kg, while the tropical package measures 2614 x 3919 x 2200mm at 5860kg, reflecting the larger radiator required for higher ambient conditions.
Q8: Can the 4012-46TAG3A be paired with fuel oil cooling, and is it a standard or optional feature?
Fuel oil cooling is available as an option on the 4012 range cooling package, alongside the choice of temperate or tropical radiator. Confirm fuel oil cooling requirements at time of inquiry as specification data for this option is pending.
Request a Quote
Provide the following for fastest response:
· Build List (DGD6134 or DGDM6134)
· Engine Serial Number (if replacing existing unit)
· Required rated speed: 1500 rpm / 1800 rpm
· Destination port and required documentation