Engine Suzuki K12B

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.

Engines of the K-series: K6A, K10A, K10B, K12B, K14C, K14B, K15B.

Specifications

Production years 2008-2020
Displacement, cc 1242
Fuel system distributed injection
Power output, hp 86 – 94 (MPI)
90 – 94 (Dualjet)
Torque output, Nm 114 – 118 (MPI)
118 – 120 (Dualjet)
Cylinder block aluminum R4
Block head aluminum 16v
Cylinder bore, mm 73
Piston stroke, mm 74.2
Compression ratio 11.0 (MPI)
12.0 (Dualjet)
Features DOHC
Hydraulic lifters no
Timing drive chain
Phase regulator on both shafts
Turbocharging no
Recommended engine oil 5W-30
Engine oil capacity, liter 3.1
Fuel type petrol
Euro standards EURO 4/5
Fuel consumption, L/100 km (for Suzuki Swift 2015)
— city
— highway
— combined
6.1
4.4
5.0
Engine lifespan, km ~280 000

The engine was installed on:

  • Suzuki Ciaz 1 (VC) in 2014 – 2020;
  • Suzuki Solio 2 (MA15) in 2010 – 2015;
  • Suzuki Splash 1 (EX) in 2008 – 2014;
  • Suzuki Swift 4 (NZ) in 2010 – 2017;
  • Opel Agila B (H08) in 2008 – 2014.

Disadvantages of the Suzuki K12B engine

  • 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 100,000 km.

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