HOWO A7 6X4 Tractor Truck

Chassis Model

ZZ4257N3241N1,ZZ4257N3241N1

Driving Type

6X4

Cabin 

A7-P, with one sleeper and two seats, double arm windscreen wiper system with three speeds, damped adjustable driver's seat, with heating and ventilating system, exterior sun visor, safety belts, adjustable steering wheel, air horn, air conditioner, with transverse stabilizer, with four piont support floating suspension+shock absorber.
A7-G high roof cabin. Basic configuration is with double sleeper. and others is similar to the A7-P.

Engine 

Make: SINOTRUK 
Diesel 4-stroke direct injection diesel engine 
Engine model: WD615.47, 371 HP;WD615.87,290HP;WD615.69,336HP;D12.42-20,420HP;
Emission ：Euro 2 
6-cylinder in-line with water cooling, turbo-charging and intercooling 
Displacement: 9.726 L 

Transmission 

HW19712, 12F & 2R 

Steering 

ZF power steering, modol ZF8118, hydraulic steering with power assitance;

HF9, 1x9000 KGS 

Steering with doubleT-cross section beam 

Rear Axle 

HC16, 2x16000 KGS  
Pressed axle housing, central single reduction with hub reduction,with differential locks between wheels and axles.  
Ratio:4.42

Propeller Shaft 

Double universal joint propeller shaft with gear-shaped coupling flange

Chassis 

Frame: Uprofile parallel ladder frame with section of 300x80x8mm,reinforced subframe all cold riveted cross members
Front suspension:10 semi elliptic leaf spring, hydraulic telescopic double-action shock absorbers and stabilizer
Rear suspension:12 leaf semi elliptic springs, bogie spring and stabilizer

Brake 

Service brake: dual circuit compressed air brake 
Parking brake (emergency brake): spring energy, compressed air operating on front shaft and rear wheels 
Auxiliary brake: engine exhaust brake

Electrics 

Operating voltage: 24 V, negative grounded
Starter: 24 V, 5.4 Kw
Alternator: 3-phase, 28 V, 1500 W
Batteries: 2 x 12 V, 165 Ah
Cigar-lighter, horn, headlamps, fog lights, brake lights, indicators and reverse light

Tyres

12.00R20(11), one spare tyre

Fuel Tank

400L

Fifth Wheel

90#

Overall Dimension  

6950*2550*3650mm