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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 TH48-E80 transmissions include pressure pumping, kill mud pumps, coil tubing pump support, nitrogen units, and acidizing units. TH48-E80 transmissions are optimized for use with Cat 3512B, Cat 3512C, and Cummins QSK50 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 TH48-E80 oilfield transmission. Gross input power: 1715 bkW (2300 bhp).

Engine Specifications

Gross Input Power 2300.0 bhp 1715.0 bkW Less
Gross peak input torque 66556.0 ft-lb 9024.0 N·m Less
Rated input speed 1900.0 RPM 1900.0 RPM Less
Gear type Straight spur planetary Straight spur planetary Less
Gears 8F/0R 8F/0R Less
1F gear ration 3.34 3.34 Less
2F gear ration 2.45 2.45 Less
3F gear ration 2.20 2.20 Less
4F gear ration 1.81 1.81 Less
5F gear ration 1.62 1.62 Less
6F gear ration 1.36 1.36 Less
7F gear ration 1.19 1.19 Less
8F gear ration 1.00 1.00 Less


Width 33.85 in 859.9 mm Less
Height 46.34 in 1177.0 mm Less
weight 4878.0 lb 2213.0 kg Less
Length 78.13 in 1984.4 mm Less

TH48-E80 Standard Equipment

Cat Engines for Optimized Power Train
  • Cat 3512B
  • Cat 3512C
  • Cummins QSK45
  • Cummins QSK50

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

Torque Converter
  • Integral torque converter
  • Series — TC58927-ESLF
  • Stall torque ratio - 2.20

  • 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
  • 1 pump

Oil System
  • Cat Transmission/Drive Train Oil-4 (TDTO)
  • Sump oil temperatures
  • Hydraulic fill capacity — Approx. 152 L (40 gal), subject to cooler size, lines, and installation.
  • Filter Type — 10 micron synthetic, cartridge remote mount

  • Input connection (flywheel) — SAE #0
  • Output connections (yoke) — GWB 390.60/GWB 390.65
  • Structural application subject to Caterpillar approval

Control System
  • Electronic Control Unit (ECU)
  • Electronic data link, SAE J1939
  • Electrical system 24V

Power Take-Off Drives
  • Location
  • Mounting type: SAE 8 bolt (J704)
  • Rated power

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Oil & Gas Financing Solutions

We understand the unique challenges of the oil and gas industry and how to help you succeed.

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