< Back

Financing & Insurance
See our Offers
View Product Downloads
Yes, I would like to receive future marketing communications (such as email) from Caterpillar Inc., its affiliates and subsidiaries worldwide and the Caterpillar dealer network. Regardless of whether you decide to receive these marketing communications, Caterpillar will continue to send service/transactional messages, including those that have to do with any accounts that you may have with us.


Your operation depends on the power driving it. And your transmission is as crucial to your power solution as the engine. Cat transmissions are proven in the oil and gas industry and widely known for their exceptional power, leading durability, ease of operation, and shifting options.Ideal applications for Cat CX31-P600 transmissions include workover rigs, kill mud pumps, coil tubing pump support, nitrogen units, acidizing units, and cementing units. CX31-P600 transmissions are optimized for use with C9 ACERT, C11 ACERT, C13 ACERT, C15 ACERT, and C18 ACERT engines (A and B ratings).Cat CX31-P600 oilfield transmission. Gross input power: 447 bkW (600bhp). Configurations available include integral pump drives, integral drop box, and side power take-off.

Transmission Specifications

Gross Input Power 600.0 BHP 447.0 bkW Less
Gross Peak Input Torque 2025.0 ft-lb 2746.0 N·m Less
Rated Input Speed 2100.0 r/min 2100.0 r/min Less
Maximum Turbine Torque 2600.0 ft-lb 3525.0 N·m Less
Minimum Input Speed 2500.0 r/min 2500.0 r/min Less
Retarder Rating 535.0 HP 399.0 kW Less
Retarder Rating Speed 2400.0 r/min 2400.0 r/min Less
Electrical System 24.0 V 12.0 V Less
Gear Type Planetary Spur Planetary Spur Less
Gears 6F/1R 6F/1R Less
1F Gear Ratio 4.40 4.40 Less
2F Gear Ratio 2.33 2.33 Less
3F Gear Ratio 1.53 1.53 Less
4F Gear Ratio 1.00 1.00 Less
5F Gear Ratio 0.72 0.72 Less
6F Gear Ratio 0.61 0.61 Less
1R Gear Ratio -3.97 -3.97 Less
Overall Gear Ration 7/21 7/21 Less

CX31-P600 Standard Equipment

Cat Engines for Optimized Power Train
  • C9 ACERT, C11 ACERT, C13 ACERT, C15 ACERT, C18 ACERT (A and B ratings)

Transmission Rotation
  • Input rotation — counterclockwiseOutput rotation — counterclockwise(as viewed from rear)

Torque Converter
  • Lock-up clutch, torque converter drive in all gears integral to transmission
  • Stall torque ratio

  • Clutches — electro-hydraulic fully modulated, oil cooled, multidisc
  • Clutch modulation control — Cat Electronic Clutch Pressure Control (ECPC)

Installation Connections
  • 2 oil cooler lines
  • 1 electrical connector

Oil System
  • Cat Transmission/Drive Train Oil-4 (TDTO) sump oil temperatures
  • Maximum converter outlet oil temperature — 250°F (121°C)
  • Hydraulic fill capacity — 6.5 gal (25 L) subject to cooler size, lines, and installation — initial fill may be greater
  • Direct mount filter

  • Input (flywheel) — SAE #1 dry flywheel housing
  • Side supports — two SAE #2 pads
  • Output — 1710 yoke, 1810 yoke, 1810 companion flange, ISO 8667-T180 flange

Power Take-Off Drives
  • Location
  • 8 bolt mounting type
  • Rated torque
  • Rotation: same as engine
  • Ratio, 1:1

CX31-P600 Optional Equipment

Oil system
  • Remote mount oil filter

  • Remote mount ECU
  • Remote mount filter option

Integral Power Take-Off
  • Location: 1 o'clock and 11 o'clock as viewed from rear
  • Mounting type
  • Rated torque
  • Rotation: same as engine
  • Ratio - 1.09:1

Rear Power Take-Off
  • Location: 5 o'clock as viewed from rear
  • Mounting type: 8 bolt
  • Rated torque: 1000 lb-ft (1360 N•m)
  • Rotation: Opposite of engine
  • Ratio - 1.25:1