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Diplomat VIN and Tag Decoding
Diplomat Model Years
Basic Diplomat Specs
Diplomat Electrical Specs
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Basic Diplomat Specs

 

Contents of this page:

AVAILABLE POWERTRAINS
INTERIOR DIMENSIONS
EXTERIOR DIMENSIONS
FLUID CAPACITIES
RECOMMENDED SAE OIL VISCOSITY GRADES
TIRE INFORMATION
VEHICLE LOADING CAPACITIES
VEHICLE SAFETY CERTIFICATION LABEL

Some content of this page is noted as general information for Mopars, not necessarily specific to the "M" Body line.

cone.gif (114 bytes)AVAILABLE POWERTRAINS   (back to top)

225 Slant Six (85-90 hp) with 4-speed manual transmission and 1 or 2-bbl carb
225 Slant Six (85-90 hp) with 3-speed TorqueFlite automatic transmission and 1 or 2-bbl carb
318 V-8 (120-140 hp) with 4-speed manual transmission and 2-bbl carb
318 V-8 (120-140 hp) with 3-speed TorqueFlite automatic transmission and 2-bbl carb
318HD V-8 (160 hp) heavy duty with 3-speed TorqueFlite automatic transmission and 4-bbl carb
360 V-8 (?? hp) with 3-speed TorqueFlite automatic transmission and 4-bbl carb

cone.gif (114 bytes)EXTERIOR DIMENSIONS  (back to top)

Wheelbase - 112.7 in. - 286 cm
Wheelbase (2 Doors 80-81 only) - 108.7 in. - 276 cm
Track, Front - 60.0 in. - 152 cm
Track, Rear - 59.5 in. - 151 cm
Overall Length, 2 Door - 204.0 in. - 518 cm
Overall Length, 4 Door - 205.7 in. - 523 cm (Chrysler add 1")
Height, 2 Door - 53.3 in. - 135 cm
Height, 4 Door - 55.3 in. - 141 cm
Width, 2 Door - 73.5 in. - 187 cm
Width, 4 Door - 74.2 in. - 189 cm
Turn Radius - 23 ft. - 8.4 m
Approx. Curb Weight - 3600 lb. - 1634 kg
Approx. Fuel Capacity - 18 gal. - 68 l

cone.gif (114 bytes)INTERIOR DIMENSIONS  (back to top)

Effective Head Room Front 2 Door - 37.4 in. - 95 cm
Effective Head Room Rear 2 Door - 36.2 in. - 92 cm
Effective Head Room Front 4 Door - 39.2 in. - 100 cm
Effective Head Room Rear 4 Door - 37.5 in. - 95 cm
Shoulder Room Front - 55.2 in. - 140 cm
Shoulder Room Rear 2 Door - 56.0 in. - 142 cm
Shoulder Room Rear 4 Door - 55.2 in. - 140 cm
Legroom Room Front - 42.5 in. - 108 cm
Legroom Room Rear 2 Door - 34.1 in. - 87 cm
Legroom Room Rear 4 Door - 36.6 in. - 93 cm
Rear Knee Room 2 Door - -0.6in. - -2 cm
Rear Knee Room 4 Door - 1.2 in. - 3 cm
Hip Room Front 2 Door - 55.6 in. - 141 cm
Hip Room Rear 2 Door - 52.8 in. - 134 cm
Hip Room Front 4 Door - 56.8 in. - 144 cm
Hip Room Rear 4 Door - 56.6 in. - 144 cm
Trunk Capacity 4 Door - 17 cu. ft. - .481 cu. m

cone.gif (114 bytes)FLUID CAPACITIES  (back to top)

Cooling System
Engine
CID / Litres
Capacity
Quarts / Litres / Imperial Quarts
225 / 3.7 12.5 / 11.8 / 10.5
318 / 5.2 (w/o AC) 15.0 / 14.1 / 12.5
318 / 5.2 (w/ AC) 16.5 / 15.6 / 13.7
360 / 5.9 15.0 / 14.1 / 12.5
All capacities shown include 1 quart (0.9 litre) for the front heater
 and approximately one pint for the coolant reserve tank.
Other Capacities
Item

U.S. / Metric / Imperial

Fuel, 6 cyl except wagons 18 gal / 68.2 litres / 15 gal
Fuel, 8 cyl and all wagons 19� gal / 74.0 litres / 15.4 gal
Engine Oil * 4 qt / 4 litres / 3� qt
Power Steering 2� pt / 1.2 litres / 2 pt
Rear Axle 7� 2 pt / 0.9 litres / 1� pt
Rear Axle 8� 4� pt / 2.1 litres / 3� pt
Overdrive-4 Transmission 7 pt / 3.3 litres / 5� pt
Transmission 7.7 pt / 3.6 litres / 6� pt
Txmsn w/ Torque Conv 8.6 pt / 4.1 litres / 7 pt
* Add 1 quart (� Imp Qt) with filter change.

cone.gif (114 bytes)RECOMMENDED SAE OIL VISCOSITY GRADES  (back to top)

Viscosity Grade Recommended temperature range
20W-40, 20W-50, 30 32� F and up, 0� C and up
10W-30, 10W-40, 10W-50 -10� F and up, -23� C and up
10W -10� to 80� F, -23� to 27�C
5W-30, 5W-40 up to 80� F, up to 27� C
5W-20 up to 10� F, up to -12� C

SAE 5@-20 is not recommended for sustained high-speed vehicle operation

cone.gif (114 bytes)TIRE INFORMATION  (back to top)

Allowable Tire and Wheel size - Tire: FR78-15, Wheel: 5�JJ, 6JJ
Adequate chain clearance only with SAE type "S" chains.

Stock tires in 1979:
Goodyear Polysteel Radial Custom FR78-15
Load Range B
Max Load 1500 LBS
Tread 4 Plies -2 polyester cord -2 steel cord
Sidewall 2 plies -polyester cord

cone.gif (114 bytes)VEHICLE LOADING CAPACITIES  (back to top)

Rated Vehicle Load Load Limits for:
Model Rated
Vehicle
Capacity
lbs - kg
Front
Seat
Occupants
Second
Seat
Occupants
Luggage
lbs - kg
Front
Seat
Occupants
Second
Seat
Occupants
Luggage Reduced
Vehicle
Load
lbs - kg
4 Door 1100
500
3 3 200 - 90 2 2 0 600
270
Station Wagon 1100
500
3 3 200 - 90 0 0 0 0
2 Door 950
430
3 2 200 - 90 2 1 0 4500
200

cone.gif (114 bytes)VEHICLE SAFETY CERTIFICATION LABEL  (back to top)

Attached to the rear face of the Driver's door, this label provides a wealth of information including:

Date of Manufacture
Gross Vehicle Weight Rating (GVWR)
Gross Axle Weight Rating (GAWR) front and rear
VIN
Month/Day/Hour (MDH) Manufacturing Control Point

The label looks something like this:

MFG BY       CHRYSLER CORP DATE OF
MANUFACTURE
GVWR GAWR
FRONT
GAWR
REAR
THIS VEHICLE CONFORMS TO ALL APPLICABLE FEDERAL MOTOR VEHICLE SAFETY
STANDARDS IN EFFECT ON THE DATE OF MANUFACTURE SHOWN ABOVE
VEHICLE
IDENTIFICATION
NUMBER
VEHICLE TYPE  PASSENGER CAR
CAUTION - DO NOT USE WEIGHT RATING DATA PROVIDED ABOVE FOR DETERMINING MAXI-
MUM VEHICLE PASSENGER AND/OR CARGO LOAD CAPACITY.  FOR DETERMINING MAXIMUM
PASSENGER AND/OR CARGO LOAD CAPACITY, USE THE VALUES PROVIDED ON THE TIRE
PRESSURE PLACARD AFFIXED ELSEWHERE ON THIS VEHICLE.
MDH

MADE IN U.S.A

3759156

 

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Diplomat VIN and Tag Decoding
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Dodge Diplomat
See the terms of service. • Copyright © 1997- 2006 Frank Billington IV • © 2011-2017 Allpar, LLC unless otherwise noted.
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  (Valiant, Duster, and Dart)