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B 300(P)(R) Specification Sheet

SPECIFICATIONS
Transit, Tour and Shuttle Bus Rating
Net input power 250 hp (185 kW)
Gross input power 1,2 275 hp (205 kW)
Net input torque 685 lb-ft (930 N·m)
Gross input torque 1 705 lb-ft (956 N·m)
GVW 38,000 lbs (17,236 kg)
1 Gross Power and Torque Ratings are included for reference only.
2 Gross Power Ratings as defined by SAE J1995.


ENGINE INTERFACE
Acceptable full-load engine governed speed 2000-2800 rpm
Acceptable engine idle speed range
(with transmission in drive)
500-800 rpm
Maximum output shaft speed at 65 mi/hr (105 km/hr) - retarder equipped models only 3600 rpm


MOUNTING
Engine SAE No. 2
Chassis Rear support available
(required for some installations)


TORQUE CONVERTER STALL TORQUE RATIO Kp-FACTOR* AT STALL
TC-411 2.71 114.1 (98.0)
TC-413 2.44 85.4 (73.3)
TC-415 2.35 79.4 (68.2)
TC-417 2.20 70.5 (60.5)
TC-418 1.98 71.2 (61.1)
TC-419 2.02 64.0 (55.0)
TC-421 1.77 55.8 (47.9)
Includes standard integral damper which is operational in lockup
*Kp-Factor defines torque converter capacity. Kp = the ratio of converter pump speed [rpm] divided by the square of pump torque [lb-ft (N·m)].


MECHANICAL RATIOS (RANGE)*
First
3.49:1
Second
1.86:1
Third
1.41:1
Fourth
1.00:1
Fifth
0.75:1
Sixth
0.65:1
Reverse
-5.03:1


RATIO COVERAGE
Forward
5.34
*Gear ratio does not include torque converter multiplication.


CONTROL SYSTEM
Description Electronic, closed loop, adaptive with stand-alone Electronic Control Unit (ECU)
Driver-to-Transmission Interface Cab-mounted shift selector, push button or lever
Communication Protocol ? Engine/Vehicle Interface SAE J1939, SAE J1587, ISO 9141


OPTIONAL ENGINE-DRIVEN POWER TAKEOFF PROVISION
PTO Drive Engine-driven helical gear
PTO Mounting Pads Ten-bolt
PTO Mounting Locations (as viewed from rear)
Side/Side PTO Option Top/Side PTO Option
4 o'clock and 8 o'clock position 2 o'clock and 8 o'clock position
PTO Drive Gear
68-tooth 83-tooth
PTO Drive Gear Rating (continuous operation)
Using One PTO
458 lb-ft (657 N·m) 458 lb-ft (657 N·m)
Using Two PTOs
685 lb-ft (928 N·m) 685 lb-ft (928 N·m)
PTO Drive Gear Ratio
1.00 x engine speed 1.00 x engine speed


SPEEDOMETER PROVISION
Description Non-zero-crossing square wave
8 or 16 pulses per revolution of transmission output shaft
Location Electronic output from transmission ECU


TACHOGRAPH PROVISION
Tone Wheel 4 or 6-tooth
Mounting M18 x 1.5 metric thread
Location Retarder housing (standard)
Transmission rear cover (optional)


OPTIONAL RETARDER PROVISION
Output
Integral, hydraulic
Capacity
Torque Power
High
1600 lb-ft (2170 N·m) 600 hp (447 kW)
Medium
1300 lb-ft (1760 N·m) 500 hp (373 kW)
Low
1100 lb-ft (1490 N·m) 400 hp (298 kW)


OIL SYSTEM
Oil type Dexron® III, C4
Capacity (excluding external circuits) standard shallow sump 26 qts (25 liters)
Capacity (excluding external circuits) optional deep sump 29 qts (27 liters)
Filters ? main and cooler Replaceable element, integral


SIZE
B 300 B 300P
Length (engine housing to output flange face)
29.0 in (736 mm) 33.2 in (843 mm)
Weight (dry without retarder)
535 lbs (245 kg) 575 lbs (260 kg)
Weight (dry with retarder)
615 lbs (280 kg) 655 lbs (300 kg)
Depth (below transmission centerline) 11.1 in (281 mm) standard shallow sump
12.8 in (325 mm) optional deep sump


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