Suzuki K-series engines
Content
The Suzuki K-series family of gasoline engines has been assembled by the Japanese concern since 1994 and is installed on almost the entire model range of the company from the Alto baby to the Vitara crossover. This line of motors is conditionally divided into three different generations of power units.
- First generation
- Second generation
- third generation
First generation Suzuki K-series engines
In 1994, Suzuki introduced the first powertrain of its new K family. They have multiport fuel injection, an aluminum cylinder block with cast iron liners and an open cooling jacket, a DOHC head without hydraulic lifters, and a timing chain drive. There were three or four cylinder engines, as well as turbocharged modifications. Over time, most of the engines in the line received a VVT phase regulator on the intake shaft, and the latest versions of such units were used as part of a hybrid power plant.
The first line included seven different engines, two of which had supercharged versions:
| K6A ( 37 - 54 hp / 55 - 63 Nm ) | Suzuki Alto 5 (HA12), Wagon R 2 (MC21) |
| K6AT ( 60 – 64 hp / 83 – 108 Nm ) | Suzuki Jimny 2 (SJ), Jimny 3 (FJ) |
| K10B (68 hp / 90 Nm) | Suzuki Alto 7 (HA25), Splash 1 (EX) |
| K10A ( 65 – 70 hp / 88 Nm ) | Suzuki Wagon R Solio 1 (MA63) |
| K10AT ( 100 HP / 118 Nm ) | Suzuki Wagon R Solio 1 (MA63) |
| K12A ( 69 hp / 95 Nm ) | Suzuki Wagon R Solio 1 (MA63) |
| K12B (91 hp / 118 Nm) | Suzuki Splash 1 (EX), Swift 4 (NZ) |
| K14B (92 – 101 hp / 115 – 130 Nm) | Suzuki Baleno 2 (EW), Swift 4 (NZ) |
| K15B (102 – 106 hp / 130 – 138 Nm) | Suzuki Ciaz 1 (VC), Jimny 4 (GJ) |
Second generation Suzuki K-series engines
In 2013, the Suzuki concern introduced an updated internal combustion engine of the K line, and two types at once: the Dualjet atmospheric engine received a second injection nozzle and an increased compression ratio, and the Boosterjet supercharged unit, in addition to the turbine, was equipped with a direct fuel injection system. In all other respects, these are the same three-four-cylinder engines with an aluminum block, DOHC cylinder head without hydraulic lifters, timing chain drive and VVT inlet dephaser. As always, it was not without hybrid modifications of the internal combustion engine, which are very popular in Europe and Japan.
The second line included four different engines, but one of them in two versions:
| K10C ( 68 hp / 93 Nm ) | Suzuki Celerio 1 (FE) |
| K10CT ( 99 - 111 hp / 150 - 170 Nm ) | Suzuki SX4 2 (JY), Vitara 4 (LY) |
| K12B (91 hp / 118 Nm) | Suzuki Splash 1 (EX), Swift 4 (NZ) |
| K12C ( 91 hp / 118 Nm ) | Suzuki Baleno 2 (EW), Swift 5 (RZ) |
| K14C ( 136 – 140 hp / 210 – 230 Nm ) | Suzuki SX4 2 (JY), Vitara 4 (LY) |
Third generation Suzuki K-series engines
In 2019, new K-series motors appeared under the strict Euro 6d environmental standards. Such units already exist only as part of a 48-volt hybrid installation of the SHVS type. As before, both naturally aspirated Dualjet engines and Boosterjet turbo engines are offered.
The third line so far includes only two motors, but it is still in the process of expansion:
| K12D ( 83 hp / 107 Nm ) | Suzuki Ignis 3 (MF), Swift 5 (RZ) |
| K14D ( 129 hp / 235 Nm ) | Suzuki SX4 2 (JY), Vitara 4 (LY) |
