The YaMZ-7E846 engine is a diesel, turbocharged, V-shaped, 8-cylinder four-stroke engine for sports trucks produced by the Yaroslavl Motor Plant since 1994. In 2014, it was discontinued at the Yaroslavl Motor Plant. Continued to produce serially improved versions of the YaMZ-7E846 at TMZ (Tutaev, Yaroslavl region) under the designation TMZ-7E846 and TMZ-7E846.10-07, respectively.
Specifications
| Also called | YAMZ-7E846 | YAMZ-7E846.10-07 |
| Manufacturer | JSC «Autodiesel» | |
| Engine’s type | diesel | |
| Displacement | 17 241 cm3 | 18 472 cm3 |
| Max power output | 750 hp at 2500 rpm | 850 hp at 2500 rpm |
| Max torque output | 2700 Nm, at 1200-1400 rpm | 3100 Nm, at 1200-1400 rpm |
| Configuration | V | |
| Number of cylinders | 8 | |
| Valves | 32 | |
| Euro standards | Euro 2 | Euro 3 |
| Piston stroke | 140 mm | 150 mm |
| Cylinder bore | 140 mm | 140 mm |
| Compression ratio | 17,5 | |
| Fuel system | low pressure fuel priming pump and high pressure fuel pump, direct injection | |
| Cooling | water | |
| Valvetrain | OHV | |
| Cylinder block alloy | cast iron | |
| Cylinder head material | cast iron | |
| Engine lifespan | 30 thousand km | |
| Strokes of engine | 4 | |
| Firing order | 1-5-4-2-6-3-7-8 | |
| Fuel type | diesel | |
Motors of KAMAZ-master trucks
The YaMZ-7E846 engine was serially installed on the KamAZ-49221, KamAZ-4911 “Extreme”, KamAZ-4326-9 sports trucks, took part in the Dakar rally and many other truck competitions.
KamAZ-4911 Extreme with a YaMZ-7E846 engine is capable of speeds up to 180 km/h, accelerating to 100 km/h in just 16 seconds. Fuel consumption when driving at full load off-road and a speed of 120 km / h per 100 km is an impressive 100 liters.
| Machine | Years | Engine | Configuration | Volume | Power | Torque |
| KAMAZ 4310 S | 1988-1995 | KAMAZ-7403 | Diesel, turbo, V8 | 10.85 l | 305 hp | 1050 Nm |
| KAMAZ 49251 | 1994-1995 | Cummins N14-500E | Diesel, turbo, L6 | 14.01 l | 520 hp | 1700 Nm |
| KAMAZ 49252 | 1994-2003 | YAMZ 7E846 | Diesel, turbo, V8 | 17.24 L | 750 hp | 2700 Nm |
| KAMAZ 49255 | 1997-1998 | YAMZ 3E847 | Diesel, turbo, V12 | 25.86 L | 1050 hp | 3724 Nm |
| KAMAZ 49256 | 2001-2002 | YAMZ 7E846.10 | Diesel, turbo, V8 | 17.24 L | 830 hp | 2700 Nm |
| KAMAZ 4911 | 2002-2007 | YAMZ 7E846.10 | Diesel, turbo, V8 | 17.24 L | 850 HP | 2700 Nm |
| KAMAZ 4326 | 2007-2013 | YAMZ / TMZ 7E846.1007 | Diesel, turbo, V8 | 18.47 L | 850 HP | 2700 Nm |
| KAMAZ 4326/2013 | 2013-present | Liebherr D9508 | Diesel, turbo, V8 | 16.16 l | 920 hp | 4200 Nm |
| GKP * | 2015-2016 | Caterpillar C13 (Buggyra) | Diesel, turbo, L6 | 12,5 l | 980 hp | 4000 Nm |
| KAMAZ 4326/2017 | 2017-present | Cummins ISZ-13 | Diesel, turbo, L6 | 13 l | 980 hp | 4300 Nm |
