Bus chassis comparison

Vehicle
Model
IBC 1636
CBC 1725/ 59 Automatic Transmission
OH 1521
Description
IBC 1636 bus chassis (4x2 / GVW 18,500kg) with rear engine and full air suspension
CBC 1725/ 59 bus chassis with rear engine and full air suspension - Automatic Transmission
OH 1521/60 bus chassis with rear engine and spring suspension
Engine
Model
Mercedes-Benz OM 457LA. II/33
Mercedes-Benz OM 906 LA. II
Mercedes-Benz OM 366 LA.II/23
Type
6 cylinders, vertical in-line, turbo-charged and intercooled
6 cylinders, in-line, turbo-charged and intercooled
6 cylinders, vertical in-line, turbo-charged and intercooled
Exhaust emission confirming to
Euro II
Euro II
Euro II
No. of valves per cylinder
4
4
2
Maximum output
265 KW ( 355 HP) @ 1,750/ min
180 KW ( 245 HP) @ 2,300/ min
155 KW ( 208 HP) @ 2,600/ min
Maximum torque
1650 Nm ( 168 mkgf ) @ 1,050/ min
900 NM ( 92 mkgf ) @ 1,200-1,500/ min
660 NM ( 67 mkgf ) @ 1,400/ min
Total displacement (cm3)
11967 cc
6374
5958
Injection system
Direct Injection with electronic management
Direct Injection with electronic management
-
Injection unit
Individual unit pump with electronic control
Individual unit pump with electronic control
-
Injection pump
-
-
Bosch, multiplunger with timing advance type P3000
Specific fuel consumption
185 g/ KW.h (136 g/ HP.h) @ 1,400/ min
190 g/ KW.h (140 g/ HP.h) @ 1,300/ min
197 g/ KW.h (145 g/ cvh) @ 1,950/ min
Alternator ( V / A )
2 x ( 28/140 )
3 x ( 28/80 )
1 x ( 28/80 )
Battery ( V / Ah )
2 x ( 12/ 150 )
2 x ( 12/ 150 )
2 x ( 12/ 150 )
Transmission
Gearbox
-
Automatic gearbox ZF Ecomat 2 Plus ZF6HP 502 NMOT with retarder
DC G 60 - 6 SPL 100
Clutch
MFZ 430 mm, single disc, dry plate
-
-
Gearbox Type
DC GO 190-6 + servo shift 
-
-
No. of Speed
6
6
6
Forward gear
8.17/ 4.65/ 2.79/ 1.81/ 1.25/ 1.0
3.43/2.01/1.42/1.00/0.83/0.59
9.201/ 5.2301/ 3.145/ 2.034/ 1.374/ 1.000
Reverse gear
7.683
4.84
8.649
Axles
Front
DC VO 4 /13 DL - 7 forged steel " I " beam
MB VO 4 / 13 DL - 7 forged steel " I " beam
DC VL 3/7 D-5 forged steel " I " beam
Rear
DC HO 4 / 09 DL - 11.5 integral housing with pressed-in axle steel tubes
MB HO 4/09 DL 11,5 integral center housing with pressed-in axle steel tubes
MB HH 4/05 D-10 center housing with pressed-in axle steel tubes
Rear 1st
-
DC HO 4 / 09 DL - 11.5 integral housing with pressed-in axle steel tubes
-
Rear 2nd
-
NR 4 / 59 DL - 5 auxiliary rear axle
-
Final gear ratio
i = 3,333 ( 40:12 )
i = 5.857 (41:7)
i = 2.666 ( 8:3 )
Service brake
System
Drums on the front and rear wheels with ABS
Drum brake front and rear axle
Drum brake front and rear axle
Type
Dual circuit, full air system  
Dual circuit, full air system  
Dual circuit full air system  
Parking brake type
Spring loaded rear brake chamber with air release
Spring loaded rear brake chamber with air acting on rear wheels
Spring loaded rear brake chamber with air acting on rear wheels
Auxilliary brake
Type
Exhaust brake and Top brake actuated by electro pneumatic and Voith Retarder 115
ABS, bus stop brake and retarder
Exhaust brake
Chassis dimension
Wheelbase
3,000mm
5,950 mm
6,050 mm
JPJ approved wheelbase
5,950 mm
-
-
Overall length
11,870 mm
11,800 mm
11,058 mm
Overall width
2,472 mm
2,472 mm
2,435 mm
Chassis height
728 mm
825 mm
825 mm
Front track
2,025 mm
2,101 mm
1,971 mm
Rear track
1,821 mm
1,821 mm
1,821 mm
Front overhang
2,570 mm
2,375 mm
1,893 mm
Rear overhang
3,350 mm
3,250 mm
2,986 mm
Vehicle turning circle
21.51 m
21.5 m
23 m
Front clearance
204 mm
171 mm
278 mm
Rear clearance
234 mm
234 mm
234 mm
Tyre size
295/80R 22.5 PR16 x 7pcs
295/80R 22.5 PR16 x 7pcs
11R 22.5 16PR x 7pcs
Suspensions
Steering
ZF 8097 Power steering
ZF 8097
ZF 8063
Front
Air suspension with two air bellows and stabilizer and Four telescopic and double-acting
Air suspension with two air bellows and Four telescopic and double-acting with stabilizer
Semi-elliptical leaf springs and Double-acting telescopic absorbers with stabilizer
Rear
Air suspension with four air bellows,two longitudinal bars and two leveling valves and stabilizer and Four telescopic and double acting shock absorber
Air suspension with four air bellows, two longitudinal bars and two leveling valves and Four telescopic and double-acting with stabilizer
Semi-elliptical leaf springs and Double-acting telescopic absorbers with stabilizer
1st rear axle
-
-
-
2nd rear axle
-
-
-
Chassis weight
Front axle
1,005 kg
1,560 kg
1,420 kg
Rear axle
5,305 kg
4,240 kg
3,280 kg
Kerb weight
6,310 kg
5,800 kg
4,700 kg
Front axle permissible load
7,000 kg
7,000 kg
5,150 kg
Rear axle permissible load
11,500 kg
11,000 kg
10,000 kg
1st Rear axle permissible load
-
-
-
2nd Rear axle permissible load
-
-
-
Gross vehicle weight ( GVW )
18,500 kg
18,500 kg
15,000 kg
Fuel capacity
300 liters plastic
300 liters
210 liters
Accessories
Accessories
Speed limiter, Cruise control, Air horn, Electronic daily tachograph
-
-

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