• The newest generation of HTE, HTJ and HTG is here.
  • HTJ Series Expansion

    Expanded HTJ Series now offers a 10cc and 12cc pump size

  • HT Series Demo Video

    See the HT series transmission in action.

The newest generation of HTE, HTJ and HTG Hydrostatic Transmissions is here

New, enhanced HTJ10 & HTJ12 Series Hydrostatic Transmissions means more propulsion choices for broader market applications

The newest generation of HT Series Transmissions offers a wide variety of propulsion options to handle the broad range of commercial market applications while still providing increased design and manufacturing efficiency with a common four bolt mounting across the product range.

  • Machine weights to 2500 pounds
  • Tire sizes to 26 inch
  • Drive speeds to 15 MPH
  • Axle shaft diameters to 1¼ inches
  • Common four bolt mounting across product line
HT Series Video Demo
HT Series video demo

See the latest video demo of the HT Series, featuring the enhanced HTJ.

HTJ Series Enhancements
New enhanced HTJ10 and HTJ12 series transmissions

The HTJ now comes with a choice of 10cc or 12cc pump.

Propelled by Parker Drive System
Rugged power and high operating efficiency throughout the entire HT Series line of transmissions

More power to the deck and cooler running temperatures make the HT series more efficient, with smooth quiet operation.

HT Series Ratings

HTE SeriesHTJ Series – New, more propulsion optionsHTG Series
HTE SeriesHTE Series

The HTE Series transmission is the ideal choice for lighter machine applications such as residential “estate” or entry commercial operator mowers. It matches the proven Parker 10cc pump with six sizes of the rugged, field-proven TE Torqmotors for the most effective integrated transmission available in its class.

Motor Displacement (cc/rev) Continuous Output Torque Rating (lb-in) Minimum Starting Torque (lb-in) Maximum Output Torque Rating (lb-in) Output Speed (rpm)*
130 1580 2420 3115 265
165 1980 2990 3845 212
195 2415 3635 4675 177
228 2710 3635 4555 152
260 3140 3975 4870 133
293 3560 3940 5180 118

*At 3600 rpm input speed/no-load condition

HTJ Series – New, more propulsion optionsHTJ Series

The HTJ Series transmission now comes with a choice of a 10cc or 12cc pump, providing design flexibility for expanded market applications. The HTJ Series transmission is similar to the HTE transmission, except it integrates with the field-proven TJ Series Torqmotor with a larger 1¼ inch output shaft (versus 1 inch), a higher capacity bearing for greater side loads capability, and a heavy duty motor drive train for higher torque, heavier weight machine capability, and higher speeds.

Pump Displacement (cc) Motor Displacement (cc/rev) Continuous Output Torque Rating (lb-in) Minimum Starting Torque (lb-in) Maximum Output Torque Rating (lb-in) Output Speed (rpm)*
10 130 1580 2420 3115 265
10 165 1980 2990 3845 212
10 195 2415 3635 4675 177
10 228 2710 3635 4555 152
10 260 3140 3975 4870 133
10 293 3560 3940 5180 118
12 130 1823 2792 3594 303
12 165 2285 3450 4437 241
12 195 2787 4194 5394 202
12 228 3127 4194 5256 173
12 260 3623 4587 5619 151
12 293 4108 4546 5977 134

*At 3600 rpm input speed/no-load condition

HTG SeriesHTG Series

The HTG Series has become the industry standard for the truly professional, commercial zero turn radius mowers. The robust, industry standard TG Series Torqmotor, integrated with 14cc and 16cc pumps provides the greatest power for the toughest turf applications.

Pump Displacement (cc/rev) Motor Displacement (cc/rev) Continuous Output Torque Rating (lb-in) Minimum Starting Torque (lb-in) Maximum Output Torque Rating (lb-in) Output Speed (rpm)*
14 240 3090 5150 5990 200
14 280 3590 5970 7040 171
14 310 4250 6880 8180 154
16 240 2680 5150 5990 228
16 280 3110 5970 7040 195
16 310 3680 6880 8180 177

*At 3600 rpm input speed/no-load condition