SINOTRUK BRAND
HOWO TOWING TRUCK             Driving Type 6×4  
Model
ZZ4257S3241W
Engine
Make:SINOTRUK
Engine model: : WD615.47, Euro II emission standard
4 stroke direct injection diesel engine
6 cylinder in-line with water cooling, turbo-charging & intercooling
Clutch
diameter 430mm
Gear Box
Transmission, model HW19710, 10 forward and 2 reverse
Option:HW19710T,  HW20716  HW19712
Propeller Shaft
Double universal joint propeller shaft with gear-shaped coupling flange
Front Axle
Steering with double T-cross section
Rear Axles
Pressed axle housing, central single reduction with planetary wheel reduction (hub reduction),  and differential locks between wheels and axles
Ratio: 4.42 Option:  4.22   4.80  3.7  4.11
Chassis
Fuel tank: with one 400 L fuel tank with locking fuel cap
Spare wheel carrier: with one spare tire
Fifth wheel size: 2.0 inch or 3.5 inch  
Steering
ZF8118, hydraulic steering with power assistance
Ratio: 22.2-26.2:1
Brakes
Service brake: dual circuit compressed air brake
Option: ABS