Suzuki K12B engine
Engines

Suzuki K12B engine

Specifications of the 1.2-liter gasoline engine K12B or Suzuki Swift 1.2 Dualjet, reliability, resource, reviews, problems and fuel consumption.

The 1.2-liter 16-valve Suzuki K12B engine was produced in Japan from 2008 to 2020, first in the regular version, and since 2013 in the Dualjet version with two nozzles per cylinder. In the Chinese market, this unit was installed on the Changan model under the JL473Q index.

The K-engine line also includes internal combustion engines: K6A, K10A, K10B, K14B, K14C and K15B.

Technical characteristics of the engine Suzuki K12B 1.2 liter

Regular version with MPi injection
Exact volume1242 cm³
Supply systemdistribution injection
Internal combustion engine power86 - 94 HP
Torque114 - 118 Nm
Cylinder blockaluminum R4
Block headaluminum 16v
Bore73 mm
Piston stroke74.2 mm
Compression ratio11
Features of the internal combustion engineDOHC
Hydraulic compensator.no
Timing drivechain
Phase regulatorinlet and outlet
Turbochargingno
What kind of oil to pour3.1 liters 5W-30
fuel typeAI-95
Ecologist. classEURO 4/5
Exemplary. resource280 000 km

Modification with Dualjet injection
Exact volume1242 cm³
Supply systemdistribution injection
Internal combustion engine power90 - 94 HP
Torque118 - 120 Nm
Cylinder blockaluminum R4
Block headaluminum 16v
Bore73 mm
Piston stroke74.2 mm
Compression ratio12
Features of the internal combustion engineDOHC
Hydraulic compensator.no
Timing drivechain
Phase regulatoron both shafts
Turbochargingno
What kind of oil to pour3.1 liters 5W-30
fuel typeAI-95
Ecologist. classEURO 5
Exemplary. resource250 000 km

Engine number K12B is located in front at the junction with the box

Fuel consumption internal combustion engine Suzuki K12V

Using the example of a 2015 Suzuki Swift with a manual transmission:

City6.1 liters
Track4.4 liters
Mixed5.0 liters

Which cars were equipped with the K12B 1.2 l engine

Suzuki
Ciaz 1 (VC)2014 – 2020
Only 2 (MA15)2010 – 2015
Splash 1 (EX)2008 – 2014
Swift 4 (NZ)2010 – 2017
Opel
Eagle B (H08)2008 – 2014
  

Disadvantages, breakdowns and problems of the internal combustion engine K12V

This is a simple design and reliable motor, without any serious weaknesses.

The main breakdowns are associated with throttle contamination and ignition coil failures.

Saving on oil often results in clogging of phase regulator valves

Also, the owners complain about the rather long warm-up of the engine in the winter.

There are no hydraulic lifters and valve clearances need to be adjusted every 100 km


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