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Perkins 4012TAG Generator Set

The Perkins 4012TAG is a 1121 kW (1401 kVA) Diesel standby generator set powered by a Perkins 4012TAG engine. It operates at 50 Hz. It holds about 177.6 L (46.9 gal) of oil and 200 L (52.8 gal) of coolant. The set measures 3815×1890×2306 mm (150.2×74.4×90.8 in) and weighs about 5280 kg (11640 lb).

1121 kW
Standby
45.842 L
Displacement
177.6 L
Oil capacity
4
Document types

How to read your Perkins serial & model number →

Typical fuel consumption for 1120–1125 kW Diesel generators →

Compare with other 1120–1125 kW Diesel generators →

Specifications

FuelDiesel
Frequency50.0 Hz
Standby power1121 kW
Standby kVA1401
Prime power1019 kW
Oil capacity177.6 L
Dimensions (L×W×H)3815×1890×2306 mm
Dry weight5280 kg

Engine

Perkins 4012TAG
Oil capacity177.6 L
Coolant capacity200.0 L
Displacement45.842 L
AspirationTurbocharged air to air charge cooled
Rated speed1500 rpm

Filters & service parts

model family
ItemSpecCapacityPart #Interval
Air filter250 hr
Fuel filter250 hr
Oil filter250 hr
Battery250 hr
Belt1.5 mm (1/16") deflection250 hr
Coolant50/50 mixture of Shell Safe Premium antifreeze and water250 hr
Coolant filter
Hydraulic filter
OilAPI CD or CCMC D4250 hr
Spark plug250 hr

Compiled from this model's family documentation — may include parts for closely-related variants. Confirm the exact part for your serial number.

Service intervals

2
ItemActionHoursMonthsNotes
oil and filterChange450 hr1300 Series EDi - oil and filter changes at 450 hours reduce down time
service intervalOther500 hr1100C range - 500 hour service intervals

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Recommended fluids

FluidGradeStandardAmbientCapacityNotes
Engine oilAPI CH4/ACEA E51100 Series (1103C/1104C)
Engine oil15W40ACEA E3 or API CG41300 Series EDi
Engine oilmulti-grade oilAPI-CH4/CI41106D-E66TAG
Engine oilsingle or multigrade oilACEA E1 E2 or CD/SD1000 Series
FuelBS 2869 Part 2 1998 Class A2 or ASTM D975 D21000/1300 Series

Extracted from the manufacturer documentation linked to this model. Values are copied as printed; confirm against your unit's manual and serial number.

Common questions

What size generator is the Perkins 4012TAG?

The Perkins 4012TAG is rated 1121 kW standby (1401.0 kVA).

What engine does the Perkins 4012TAG use?

The Perkins 4012TAG is powered by the Perkins 4012TAG engine.

Is the Perkins 4012TAG diesel or gas?

The Perkins 4012TAG runs on Diesel.

What's the oil capacity on a Perkins 4012TAG?

The Perkins 4012TAG engine in the Perkins 4012TAG has an oil capacity of 177.6 liters.

Parts

3
Part #DescriptionQtySystem
4012TAGService part / kit Amazon eBay FridayParts $64.80
4012TAG1Service part / kit Amazon eBay $60.42 FridayParts $38.98
4012TAG2Service part / kit Amazon eBay $927.40 FridayParts $25.41

Service, wear & replacement parts referenced for this model and its engine — confirm the exact part for your serial number. See the full parts catalog to search and cross-reference.

Available documents

Engine spec — 4012TAG spec (Perkins)Engine spec — perkins (Perkins)Reference — Generating A Better Future (pn1398-02-05) (Perkins)Owner's manual — TSL4186S (Perkins)Service manual — 4012TAG - TAG1 - TAG2 (Perkins)Service manual — TSL4186E (Perkins)