Oil and Gas:

CX35-P800 Oilfield Transmission

Overall Gear Ration
Gross Input Power
800 BHP
Gross Peak Input Torque
2700 ft-lb
Rated Input Speed
2100 r/min

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 CX35-P800 transmissions include workover rigs, hydraulic fracturing, kill mud pumps, coil tubing pump support, nitrogen units, acidizing units, and cementing units. CX35-P800 transmissions are optimized for use with C15 ACERT, C18 ACERT, and C27 ACERT engines (A ratings).Cat CX35-P800 oilfield transmission. Gross input power: 597 bkW (800 bhp). Configurations available include basic and integral pump drives.

Product Specs

  • Transmission Specifications

  • Overall Gear Ration
  • Engine Specifications

  • Gross Input Power
    Gross Peak Input Torque
    Rated Input Speed
    Maximum Turbine Torque
    Minimum Input Speed
    Electrical System
    Gear Type
    Planetary Spur
    1F Gear Ration
    2F Gear Ration
    3F Gear Ration
    4F Gear Ration
    5F Gear Ration
    6F Gear Ration
    7F Gear Ration
    8F Gear Ration
    1R Gear Ration
    Overall Gear Ration


  • Cat Engines For Optimized Power Train
    • C15 ACERT, C18 ACERT, and C27 ACERT (A ratings).
  • Transmission Rotation
    • Input rotation — counterclockwise
    • Output rotation — counterclockwise(as viewed from rear)
  • Torque Converter
    • Lock-up clutch, torque converter drive in all gears integral to transmission
    • Stall torque ratio - 1.962
  • Clutches
    • 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 — 9 gal (34 L), 16 gal 61L) initial fill
    • Direct mount filter
  • Mountings
    • Input (flywheel) — SAE #1 dry flywheel housing
    • Side supports — two SAE #2 pads
    • Output — 1810 yoke, 1810 companion flange, SPL 250 yoke, ISO 8667-T180 flange
  • Power Take-off Drives
    • Location
    • Mounting type: 10 bolt
    • Rated torque
    • Rotation: same as engine
    • Ratio, 1:1
  • Oil System
    • Remote mount oil filter
  • Mountings
    • 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 - 1:1
  • Rear Power Take-off
    • Location: 5 o'clock as viewed from rear
    • Mounting type: 8 bolt (SAE pump adapters and drive flanges available from third party suppliers.
    • Rated torque: 1000 lb-ft (1360 Nm)
    • Rotation: Opposite of engine
    • Ratio - 1.25:1

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