PACCAR MX-13 Coach & Bus engine
The 12.9 Litre PACCAR MX-13 engine uses state of the art technologies, fi rst class materials, extensive function integration and a heavy duty foamed wire loom to achieve highest reliability and durability. Excellent torque at low engine speeds and a high performance is available over a wide rev. range. The best engine has become even better.
A well-controlled and further optimized combustion process using smart dosing controls and modulating fuel line pressure assures highest effi ciency and lowest fuel consumption ever. Repair & Maintenance costs have been cut as well by extending intervals and increased uptime. The engine is available in Euro 6, Euro 5 and Euro 3 versions. To meet the Euro 6 emission levels it features exhaust gas recirculation, SCR and an active soot filter.
PACCAR MX-13 coach & bus engine
| Engine Type |
Performance | Torque | Emission level |
| MX-13 315 | 315 kW / 428 hp at 1600 rpm |
2.300 Nm at 900-1125 rpm |
Euro 6 |
| MX-13 355 | 355 kW / 483 hp at 1600 rpm |
2.500 Nm at 900-1125 rpm |
Euro 6 |
| MX-13 390 | 390 kW / 530 hp at 1675 rpm |
2.700 Nm at 900-1125 rpm |
Euro 6 |
| MX-13 ENGINE | |
| No. of cylinders and cylinder | 6 in line, vertical |
| Valves | 4 |
| Bore x Stroke [mm] | 130 x 162 |
| Piston displacement [dm3] | 12.9 |
| Compression ratio |
18,5 : 1 |
| Aspiration | Turbocharged with charge cooling |
| Idle speed [rpm] | 550 +50 -25 |
| High idle speed [rpm] | 2200 |
| Max. speed during engine brake [rpm] | 2100 |
| Firing order | 1-5-3-6-2-4 |
General description
- Compact Graphic Iron (CGI) cylinder block with improved cooling and vertical rips for max. strength & low noise
- One piece CGI cylinder head with integrated air intake manifolds
- Forged steel crankshaft without contra weights
- High strength and wear wet liners with anti-polishing ring
- Oil cooled pistons with 3 piston rings each
- Low noise rear mounted distribution drive
- 2500 bar common rail fuel injection with block integrated high pressure unit pumps
- Wide angle fuel injectors with variable needle opening pressure
- Electronic controlled single stage (VTG) turbo charging system
- SCR/DPF exhaust after treatment module together with cooled EGR technology
- Electronically driven Crankcase Ventilation System
Lubrication system
- Pressure feed lubrication by a variable vane -type oil pump. Full flow main oil filter and a centrifugal by-pass filter (optional).
Cooling system
- Water cooled thermostatically controlled and full variable water pump
Electrical / electronic system
- Voltage: 24V
- Starter motor: 6.2 kW
- Alternators: 2 x 150 A, LIN controlled
Standard equipment
- Flywheel: suitable for manual gearbox
- Flywheel housing: SAE 1
- Stainless steel oil cooler module thermostatically controlled
- Electrically controlled back pressure valve (BPV)
- Inlet and exhaust manifolds
- Integrated fuel filter / water separator
- Flat oil sump Alu
- Exhaust After treatment System (EAS) incl. Ad-Blue tank and control units
- Low energy air compressor with power saving system, 561cc displacement
- Steering pump, 25cc 17,5 l/min, variable displacement
- Engine mountings support, 3 bracket system
- Oil level sensor for daily check
Options
- Gear driven rear engine PTO’s
- Belt driven front engine PTO
- Steering pump variants
- Engine mounting vibration dampers
- Engine mountings support, 4 bracket system
- Flywheels suitable for ZF and Allison automated/automatic gear boxes
- Integrated engine compression brake with enhanced braking power max. 360kW
- Air compressor with power saving system, 636cc
- Adblue tank variants
- SCR/DPF module variants
- Extended Service Interval
- Engine and chassis installation parts on request