ZF 4HP14 transmission

The ZF 4HP14 is a four-speed automatic transmission for passenger cars from ZF Friedrichshafen AG. Introduced in 1984, and produced through 2001, it was used in Citroën, Peugeot, and Daewoo front-wheel drive cars.

Specifications

Technical data

Gear Teeth

and Ratios

Ravigneaux planetary gearset

Teeth

Count Total Avg.
Model Version

First Delivery

Sun 1.1

Ring 1.1

Sun 1.2

Ring 1.2

Brakes

Clutches

Ratio

Span

Gear

Step

Gear R 1 2 3 4
4HP 14 1984 29[lower-alpha 1]

82

34

29

2

3

3.2647 1.4835
Ratio - 2.8376 2.4118 1.3688 1.0000 0.7387
4HP 18 FLE

1991

34[lower-alpha 1]

98

38

34

2

3

3.4737 1.5145
Ratio - 2.8824 2.5789 1.4067 1.0000 0.7424
  1. inner and outer sun gear of the Ravigneaux planetary gearset are inverted


Applications

See also

References

  1. "Peugeot 309 1987 Automatic brochure". Peugeot.
  2. "Vraagbaak Volvo 440/460/480 Benzinemodellen" by P.H. Olving, April 2011, ISBN 9789021534091
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