HOME >> TRANSMISSIONS
COMPANY PROFILE
POWER GENERATION
ENGINES
TRANSMISSIONS
JOB OPPORTUNITIES
PARTS & SERVICES
CUSTOMER SERVICE
INFO REQUEST
LOCATIONS
TRAINING
EXTRANET
MD 3066(P)(R) Specification Sheet

SPECIFICATIONS
General Purpose Truck Rating
Net input power 340 hp (254 kW)
Gross input power1,2 360 hp (268 kW)
Net input torque 1050 lb-ft (1424 N·m)
Gross input torque1 1085 lb-ft (1471 N·m)
Vehicle weight N/A

Refuse Packer and Refuse Hauler Rating
Net input power 300 hp (224 kW)
Gross input power1,2 320 hp (239 kW)
Net input torque 900 lb-ft (1220 N·m)
Gross input torque1 930 lb-ft (1261 N·m)
Vehicle weight 60,000 lbs (28,123 kg) GVW

Shorthaul, Tractor Trailer, P&D and Beverage Rating
Net input power 340 hp (254 kW)
Gross input power1,2 360 hp (268 kW)
Net input torque 1050 lb-ft (1424 N·m)
Gross input torque1 1085 lb-ft (1471 N·m)
Vehicle weight 80,000 lbs (36,287 kg) GVW

Emergency Vehicle Rating
Net input power 340 hp (254 kW)
Gross input power1,2 360 hp (268 kW)
Net input torque 1150 lb-ft (1559 N·m)
Gross input torque1 1200 lb-ft (1627 N·m)
Vehicle weight N/A
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


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


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


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


SIZE
MD 3066P MD 3066
Length (Engine housing to output flange face)
33.2 in (843 mm) 29.0 in (736 mm)
Weight (dry without retarder)
575 lbs (260 kg) 535 lbs (245 kg)
Weight (dry with retarder)
655 lbs (300 kg) 615 lbs (280 kg)
Depth (below transmission centerline) 12.8 in (325 mm) standard deep sump
11.1 in (281 mm) optional shallow sump


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


Today's engine and axle options have made specifying a truck more demanding. We can help. Whether you're looking for enhanced fuel economy, increased productivity or high performance, we have the tools to help you select an Allison Transmission that will match your specific application needs. Call 1-800-252-5ATD. You'll get the right transmission for your job.
 

Copyright © 1998 - 2008, Atlantic Detroit Diesel-Allison, LLC.. All rights reserved.
180 Route 17 South, Lodi, NJ 07644. Phone: (201) 489-5800 Fax: (201) 368-1071 Email: rmangs@atlanticdda.com.

Detroit Diesel®, Allison Transmissions®, MTU® and Carrier Transicold®, are the registered trademarks of Detroit Diesel Corporation, General Motors Corporation, MTU Friedrichshafen GmbH and Carrier Corporation, respectively.
These and other trademarks of those companies are used in this Web-site with permission.

Website Design By Revolutionary Systems, LLC.