ZF 3HP22 transmission

The 3HP 22 is a three-speed automatic transmission from ZF Friedrichshafen AG for passenger cars. Introduced in 1973, it was produced through 1990, and has been used in a variety of cars from Alfa Romeo, BMW, Citroën, Peugeot, and Fiat.

3HP 22
Overview
ManufacturerZF Friedrichshafen
Production1973 – 1990
Model years1973 – 1990
Body and chassis
Class3-Speed Longitudinal Automatic Transmission
Chronology
PredecessorZF 3HP 12
SuccessorZF 4HP 22 transmission Family

Specifications

Torque

The ZF 3HP 22 can handle up to 320 N⋅m (236 lbf⋅ft) of input torque.

Weight

Weight: 45 kg gearbox with converter

Control

Control: mechanical / hydraulic

Technical data

Gear Teeth and Ratios Planetary Gearset: Teeth Count Total Avg.
Simpson
Model
Type
First
Delivery
Sun 1
Ring 1
Sun 2
Ring 2
Brakes
Clutches
Ratio
Span
Gear
Step
Gear R 1 2 3
3HP 22
A · Big Engines
1973 35
73
35
73
3
2
2.4795 1.5746
Ratio 2.0857 2.4795 1.4795 1.0000
3HP 22
B · Small Engines
1973 35
73
41
73
3
2
2.7331 1.6532
Ratio 2.0857 2.7331 1.5616 1.0000

See also

References

  • "ZF North America application chart (automatic)". ZF.com. Retrieved 22 November 2013.
  • "BMWE21.net". BMWe21.net. Retrieved 24 November 2013.
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