The 1.2-liter 16-valve Suzuki K12B engine was produced in Japan from 2008 to 2020, initially in the standard version and from 2013 in the Dualjet version with two injectors per cylinder. In the Chinese market, this engine was used in Changan models with the JL473Q index. The K engine line also includes: K6A, K10A, K10B, K14B, K14C, and K15B.
| Exact capacity | 1242 cm³ |
| Power system | distributed injection |
| Engine power | 86 - 94 HP |
| Torque | 114 - 118 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 73 mm |
| Piston stroke. | 74.2 mm |
| Compression ratio | 11 |
| Engine features | DOHC |
| Hydraulic compensator. | there is no |
| Timing drive | chain |
| Timing phase adjuster | on intake and exhaust. |
| Turbocharging | there is no |
| What oils to use | 3.1 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 4/5 |
| Approximate life expectancy | 280 000 HP |
| Exact capacity | 1242 cm³ |
| Power system | distributed injection |
| Engine power | 90 - 94 HP |
| Torque | 118 - 120 nm |
| Engine block | aluminum R4 |
| Block head | aluminum 16v |
| Cylinder diameter | 73 mm |
| Piston stroke. | 74.2 mm |
| Compression ratio | 12 |
| Engine features | DOHC |
| Hydraulic compensator. | there is no |
| Timing drive | chain |
| Timing phase adjuster | on both ramparts |
| Turbocharging | there is no |
| What oils to use | 3.1 liters 5W-30 |
| Fuel type | 95 |
| Environmental class | EURO 5 |
| Approximate life expectancy | 250 000 HP |
| City | 6.1 litry |
| Route | 4.4 litry |
| Mixed | 5.0 litry |
The weight of the K12B engine assembly is 80 kg. The engine number K12B is located at the front, at the junction with the gearbox. It is a simple and reliable motor without any serious weak points. The main breakdowns are related to throttle contamination and ignition coil failures. Saving on oil often leads to valve phaser clogging. Owners also complain about the engine taking quite a long time to warm up in winter. There are no hydraulic compensators, and valve clearances need to be adjusted every 100,000 km.
| Ciaz 1 (VC) | 2014 - 2020 |
| Solio 2 (MA15) | 2010 - 2015 |
| Splash 1 (EX) | 2008 - 2014 |
| Swift 4 (NZ) | 2010 - 2017 |
| Agila B (H08) | 2008 - 2014 |
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The 1.2-liter 16-valve Suzuki K12B engine was produced in Japan from 2008 to 2020, initially in the standard version and from 2013 in the Dualjet version with two injectors per cylinder. In the Chinese market, this engine was used in Changan models with the JL473Q index. The K engine line also includes: K6A, K10A, K10B, K14B, K14C, and K15B.
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