ZT-3100®

Our entry-level commercial-grade transaxle.

ZT-3100®

Our entry-level commercial-grade transaxle.

Hydro-Gear’s entry-level commercial transaxle is designed to give you reliable and quiet performance every time you turn the key. The ZT-3100® features a high-efficiency 10cc pump and 16cc motor, 1” axle shaft, and external oil filter for fast, easy maintenance. The Performance Package takes it up another notch with shock valves to extend system life, durable cut steel gears, and a charge pump.

  • Included shock valves to protect the systemand extend its life
  • External oil filter for easy maintenance
  • Optional internal expansion tank for easier installation
  • Performance package – Shock valves, Cut steel gears, and Charge pump

Product Specs

Transmission Model
ZJ
ZL
ZM

Overall Transaxle Reduction
20.69:1
24.74:1
27.23:1

Pump Displacement
0.61 in3 /rev [10 cc/rev]
0.61 in3 /rev [10 cc/rev]
0.61 in3 /rev [10 cc/rev]

Motor Displacement
0.97 in3 /rev [16 cc/rev]
0.97 in3 /rev [16 cc/rev]
0.97 in3 /rev [16 cc/rev]

Input Speeds
Max Hi-Idle (no load)
Min (loaded)
3600 rpm
1800 rpm
3600 rpm
1800 rpm
3600 rpm
1800 rpm

Output Torque
up to 350 lb-ft [up to 474 Nm]
up to 350 lb-ft [up to 474 Nm]
up to 350 lb-ft [up to 474 Nm]

Speed
up to 9 mph [up to 14 kph]
up to 9 mph [up to 14 kph]
up to 9 mph [up to 14 kph]

Gross Vehicle Weight
up to 1200 lbs [up to 544 kg]
up to 1200 lbs [up to 544 kg]
up to 1200 lbs [up to 544 kg]

Axle Shaft Diameter
1.0 in [25.4 mm]
1.0 in [25.4 mm]
1.0 in [25.4 mm]

Axle Shaft End Options
Tapered
4-bolt Flange
5-bolt Flange
Tapered
4-bolt Flange
5-bolt Flange
Tapered
4-bolt Flange
5-bolt Flange

Weight of Unit
32.5 lbs [14.7 kg]
32.5 lbs [14.7 kg]
32.5 lbs [14.7 kg]