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SPECS SUMMARY

Gross Input Power3300 BHP (2461 bkW)
Gross Peak Input Torque9350 ft-lb (12677 N·m)
Rated Input Speed1900 r/min (1900 r/min)
Gears7F/0R
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.TH55-E70 transmissions are ideal for pressure pumping applications. TH55-E70 transmissions are optimized for use with Cat 3512C (HD), Cat 3516C (HD), Cummins QSK 50, Cummins, QSK 60, MTU 12V4000. and MTU 16V4000 engines.Cat transmissions are backed by the worldwide network of Cat dealers ready to support your operation with technical support, service, parts, and warranty.Cat TH55-E70 oilfield transmission. Gross input power: 2461 bkW (3300 bhp).

Specifications

Gross Input Power3300 BHP (2461 bkW)
Gross Peak Input Torque9350 ft-lb (12677 N·m)
Rated Input Speed1900 r/min (1900 r/min)
Gears7F/0R
1F Gear Ratio6.25
2F Gear Ratio4.59
3F Gear Ratio3.38
4F Gear Ratio2.48
5F Gear Ratio1.83
6F Gear Ratio1.36
7F Gear Ratio1.00

Standard Equipment

  • Cat C3512C (HD)
  • Cat 3516C (HD)
  • Cummins QSK50
  • Cummins QSK60
  • MTU 12V4000
  • MTU 16V4000
  • Input rotation — counterclockwise
  • Output rotation — counterclockwise(as viewed from rear)
  • Integral torque converter
  • Series — TC64442-ESLF
  • Stall torque ratio — 2.23
  • Clutches — electro-hydraulic fully modulated, oil cooled, multidisc
  • Clutch modulation control — Cat Electronic Clutch Pressure Control (ECPC)
  • 2 oil cooler lines
  • 1 electrical connector
  • 1 pump
  • Cat Transmission/Drive Train Oil-4 (TDTO)
  • Sump oil temperatures
  • Hydraulic fill capacity — Approx. 189 L (50 gal), subject to cooler size, lines, and installation.
  • Filter Type — 6 micron synthetic, cartridge remote mount
  • Input connection (flywheel) — SAE #0
  • Output connections (flange)
  • Structural application subject to Caterpillar approval
  • Electronic Control Unit (ECU)
  • Electronic data link, SAE J1939
  • Electrical system 24V
  • Location
  • Mounting type
  • Rated power