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Vehicle specifications

Opel Diplomat B

Compare all 2 engine versions of the Opel Diplomat Diplomat B, then open the technical data for the exact drivetrain and production year.

Vehicle history report

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Opel Diplomat Diplomat B View larger
Photo: Gwafton, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons

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Opel Diplomat Diplomat B

Photo: Gwafton, CC BY-SA 3.0 <https://creativecommons.org/licenses/by-sa/3.0>, via Wikimedia Commons

Choose a drivetrain

Engine versions

Select a row to update the key figures and detailed specifications below.

2 versions · 2 Gasoline

Engine Fuel Power Production
2.8 E (165 KM) Selected Gasoline 165 KM 1969–1975
5.3 V8 (230 KM) Automatic Selected Gasoline 230 KM 1969–1978

Selected engine version

2.8 E (165 KM)

Gasoline · 1969–1975

Engine power
165 KM
Torque
229 Nm
Engine displacement
2,784 cm³
Fuel type
Gasoline
Acceleration 0-100 km/h
10.5 s
Maximum speed
190 km/h
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Basic version information

Brand
Opel
Model
Diplomat
Version
Diplomat B
Engine
2.8 E (165 KM)
Engine type
Combustion engine
Number of doors
4
Start of production
1969
End of production
1975
Body type
Sedan
Number of seats
5
Fuel type
Gasoline

Performance

Maximum speed
190 km/h
Acceleration 0-100 km/h
10.5 s

Engine

Engine model / code
28E
Engine displacement
2784 cm³
Fuel injection system
Multi-point injection
Engine type
Naturally aspirated engine
Valvetrain
SOHC
Engine configuration
Inline
Number of cylinders
6
Cylinder bore
92 mm
Piston stroke
69.8 mm
Compression ratio
9.5
Number of valves per cylinder
2
Engine oil capacity
4.5 l
Power
165 KM @ 5600 obr./min
Torque
229 Nm @ 4100-4600 obr./min

Volume and weight

Fuel tank
80 l
Aerodynamic drag coefficient (Cx)
0.45
Minimum trunk capacity
475 l
Curb weight
1530 kg
Gross weight
2030 kg
Braked trailer load (12% slope start)
1400 kg
Trailer load without brakes
700 kg

Vehicle dimensions

Length
4920 mm
Width
1852 mm
Height
1450 mm
Wheelbase
2850 mm
Front track
1510 mm
Rear track
1512 mm
Ground clearance
150 mm
Turning circle
11.8 m

Drivetrain, Brakes and suspension

Drive
Rear-wheel drive
Number of gears
4
Front brakes
Ventilated disc
Rear brakes
Ventilated disc
ABS
no

Selected engine version

5.3 V8 (230 KM) Automatic

Gasoline · 1969–1978

Engine power
230 KM
Torque
427 Nm
Engine displacement
5,354 cm³
Fuel type
Gasoline
Acceleration 0-100 km/h
8.5 s
Maximum speed
205 km/h
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Basic version information

Brand
Opel
Model
Diplomat
Version
Diplomat B
Engine
5.3 V8 (230 KM) Automatic
Engine type
Combustion engine
Number of doors
4
Start of production
1969
End of production
1978
Body type
Sedan
Number of seats
5
Fuel type
Gasoline

Performance

Maximum speed
205 km/h
Acceleration 0-100 km/h
8.5 s

Engine

Engine model / code
54S
Engine displacement
5354 cm³
Fuel injection system
Carburetor
Engine type
Naturally aspirated engine
Valvetrain
OHV
Engine configuration
V-shaped
Number of cylinders
8
Cylinder bore
101.6 mm
Piston stroke
82.55 mm
Compression ratio
10.5
Number of valves per cylinder
2
Engine oil capacity
5.4 l
Power
230 KM @ 4700 obr./min
Torque
427 Nm @ 3000-3200 obr./min

Volume and weight

Fuel tank
80 l
Aerodynamic drag coefficient (Cx)
0.45
Minimum trunk capacity
475 l
Curb weight
1690 kg
Gross weight
2200 kg

Vehicle dimensions

Length
4920 mm
Width
1852 mm
Height
1450 mm
Wheelbase
2850 mm
Front track
1510 mm
Rear track
1512 mm
Ground clearance
150 mm
Turning circle
11.8 m

Drivetrain, Brakes and suspension

Drive
Rear-wheel drive
Number of gears
3
Front brakes
Ventilated disc
Rear brakes
Ventilated disc
ABS
no