ENGINE
CURSOR 13 turbo intercooler diesel injection/cycle with electronic unit injection pumps. 6 in-line cylinders. Single block head, four valves per cylinder, light alloy pistons. Total displacement: 12.882 cm3. Bore for stroke: 135 x 150 mm.Water cooling. Viscostatic cooling fan. Dry air filter with safety cartridge. Vertical muffler. Emissions according to Euro 5 regulation norms SCR (Selective Catalytic Reduction) system composed of catalytic muffler, AdBlue-tank, injection and control system.
PERFORMANCE
Manual gear ZF 16 S 2220 TO for HD9 84.41 / HD9 84.44 and ZF 16 S 2520 TO for HD9 84.48 / HD9 84.52 / HD9 84.56 with servoshift, 16 synchronised forward speeds + 2 reverse
On request: ASTRONIC automatic gearbox ZF 12AS2330 OD only for HD9 84.44 – HD9 84.48.
| gear | gear ratio | speed (km/h) |
| 1 | 13.80 | 6,7 |
| 2 | 11.54 | 8,0 |
| 3 | 9.49 | 9,7 |
| 4 | 7.93 | 11,7 |
| 5 | 6.53 | 14,2 |
| 6 | 5.46 | 16,9 |
| 7 | 4.57 | 20,2 |
| 8 | 3.82 | 24,2 |
| 9 | 3.02 | 30,6 |
| 10 | 2.53 | 36,5 |
| 11 | 2.08 | 44,4 |
| 12 | 1.74 | 53,1 |
| 13 | 1.43 | 64,6 |
| 14 | 1.20 | 77,0 |
| 15 | 1.00 | 92,4 |
| 16 | 0.84 | 110,0 |
| 1 RM | 12.92 | 7,2 |
| 2 RM | 10.80 | 8,6 |
(*) Max speed 90 km/h. Other speeds available, subject to the Astra technical office approval
TRANSMISSION
Manual gear ZF 16 S 2220 TO for HD9 64.41 / HD9 64.44 and ZF 16 S 2520 TO for HD9 64.48 / HD9 64.52 / HD9 64.56 with servoshift, 16 synchronised forward speeds + 2 reverse
On request:
ASTRONIC automatic gearbox ZF 12AS2330 OD only for HD9 64.44 – 64.48
AXLES
FRONT
Steering, hot moulding in high tensile steel. Wheel stud protection.
REAR
Double drive axles. Double reduction: crown wheel and pinion centrally and epicyclical group in wheel hubs. 2nd axle with torque distributor to the two rear axles. Lockable differentials by pneumatic control from driver’s seat. Tandem assembled to the chassis by reaction rods with silentblock.
On request:
Rear-axle ratio 1:4,229
Rear-axle ratio 1:5,009
Rear-axle ratio 1:5,558
Rear-axle ratio 1:6,095
Rear-axle ratio 1:6,588