Case IH True-Tandem 375

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True-Tandem Disk Harrow 375 Highlights

  • Available in 6 single fold sizes: 22 ft, 25 ft, 28 ft, 31 ft, 34 ft, and 37 ft
  • Also available in 2 double fold sizes: 42 ft and 47 ft
  • 24 inch Earth Metal Blades that are 30% stronger than other industry blades
  • Industry exclusive shallow concavity blades on the front gang maximize productivity and ground penetration; Optional Standard Concavity front blades also available for a blacker output
  • New gang mounting design. Crimped center blades provide increased strength and tighter fit with cast iron nodular spools
  • Stubble Resista​nt Tire Options


Agronomic Design™ Features
True-Tandem disk harrow technology combines uniformly distributed pull forces with exclusive Earth Metal blades for optimal tillage performance, even in the roughest of fields. Built on proven Agronomic Design principles, our disk harrows help you effectively manage soil and residue without compaction. Slice through tough residue, uproot root balls and level the soil to create the best possible seedbed for your crop.

Crop Residue Management

  • Control residue size and distribution to promote faster breakdown and nutrient cycling
  • Ultimate disk harrow technology to manage residue from a multitude of crops
  • The Crumbler puts the final touches on the seedbed
  • Precise depth adjustment allows for greater control over soil residue cover at planting to fit a wide range of soil types, topographies and management objectives


Soil Tilth

  • Break through crusty, sealed-over soils to achieve the proper balance of minerals, air and water
  • The 18-degree gang angle matches blade concavity for thorough soil mixing and leveling
  • Promote a better seedbed finish without the excessive compaction typical of heavier disks
  • Helps reduce residue hair-pinning, resulting in better seed-to-soil contact and stand establishment


Seedbed Conditioning

  • Put the finishing touches on fields by sizing clods and increasing the soil’s contact with residue for maximum decomposition
  • Provide a uniform seedbed depth and temperature, contributing to early, even plant emergence


Durable True-Tandem Frame

Improve balance and stability in the field with the True-Tandem frame design. The combination of mirror-matched gangs and a rugged, low-maintenance pull-through frame eliminate drift and accommodate higher ground speeds compared with the traditional double-offset frame. LED lights and a high-quality powder coat paint finish keep you in the field longer and your equipment looking good for years to come.

Mainframe and Wings

  • Provide exceptional center of gravity and balance
  • Designed with gusset plates to maximize strength and stress distribution
  • Deliver more uniform weight per blade
  • Increased length over competitive equipment improves overall balance and fore and aft leveling
  • Overlapping weld design and welded cylinders improve durability while reducing maintenance and the chance of leaking


Greaseless Bearings

  • Featured on wing pivots, rockshafts and the Crumbler
  • Reduces routine maintenance, keeping you in the field longer


Durable Design Attributes

  • LED lights are brighter and longer-lasting than incandescent lamps
  • The Class 3 powder coat paint finish retains color longer and is more scratch resistant


Level the Growing Field
Work the soil you want to work. The lineup of True-Tandem disk harrows engages soil to your intended depth without disrupting soil density below the operating depth. It’s a system that’s proven to provide more consistency, even as soil types change across the field. And thanks to an intuitive depth adjustment system, you easily can adjust depth control and leveling to meet the needs of your conditions and fields.

Single-point Hydraulic Depth Control

  • Easily adjust operating depth with a single hand crank conveniently located at the front of the machine
  • Helps adjust to adverse conditions, such as wet, muddy soil
  • The system holds a constant blade operating depth to provide a uniform seedbed depth temperature, contributing to early, even plant emergence
  • Optional hydraulic front-to-back leveling allows quick operator reaction to changes in field conditions
  • View the gauge from the cab to easily return to your pre-adjusted position


Make Case IH Case IH
Model True-Tandem 375, Single-Fold 3-Section True-Tandem 375, Double-Fold 5-Section
Disk harrow type, Tandem or Offset Tandem Tandem
Folding (Multi-Section) or Non-Folding Single-fold Double-fold
Dimensions and Weights    
Working width, minimum, ft-in (m) 22' 4" (6.81) 42' 4" (12.90)
Working width, maximum, ft-in (m) 36' 6" (11.13) 46' 7" (14.20)
Transport width, minimum, ft-in (m) 14' 6" (4.42) 18' 6" (5.64)
Transport width, maximum, ft-in (m) 18' 0" (5.49) 18' 6" (5.64)
Transport height, minimum, ft-in (m) 11' 2" (3.40) 13' 1" (4.0)
Transport height, maximum, ft-in (m) 15' 4" (4.67) 13' 1" (4.0)
Total weight, minimum, lb (kg) 13,383 (6083) 28,500 (12927)
Total weight, maximum, lb (kg) 21,227 (9649) 29,650 (13449)
Sizes available, number of widths 6 2
Disk Blades    
Disk blade spacing, in (mm) 9 (229) 9 (229)
Disk blade diameter, in (mm) 24 (610) 24 (610)
Disk blade thickness, in (mm) 0.197 or 0.256 (5.0 or 6.5) 0.197 or 0.256 (5.0 or 6.5)
Blade edge profile Solid Solid
Optional blade edge profile No optional edge profile No optional edge profile
Blade concavity Shallow front, Standard rear; Standard concave opt. front np
Disk Gang Mounting and Angles    
Gang mounting to frame Rigid or C-Spring Cushion C-Spring Cushion
Frame left to right flexibility, rigid or flexible Flexible Flexible
Front gang angle, degrees 18 18
Rear gang angle, degrees 18 18
Disk Gang Components    
Disk bearings Greasable Greasable
Gang arbor bolts, in (mm) 1.5 (38) square 1.5 (38) square
Disk spool description, in (mm) 6.0 (152) nodular cast iron 6.0 (152) nodular cast iron
Disk blade scraper, type Spring steel, rigid arm Spring steel, rigid arm
Wheels and Tires    
Transport wheel mounting Walking tandem Walking tandem
Transport tires 12.5Lx15 or 340/55-16 for up to 28' 12.5Lx15 FI
Optional transport tires 380/60 R16.5 for 31' to 37' 16.5x16.1 FI up to 440/55 R18
Wing wheel mounting Walking tandem Walking tandem
Wing tires 11L x 15 8 ply std.; or 380/60 R16.5 opt. 12.5Lx15 FI up to 440/55 R18
Hookup to tractor, mounted or pull-type Pull-type Pull-type
Depth and Level Adjustment    
Typical operating depth, in (mm) 1 to 6 (25 to 152) 1 to 6 (25 to 152)
Depth control Single point hydraulic, crank adjust Single point hydraulic, crank adjust
Fore/aft leveling Mechanical std.; hydraulic opt Hydraulic
Tractor Power Requirements    
Required power, hp/ft (kw/m) 10 to 13 (24 to 32) 10 to 13 (24 to 32)
Optional Attachments    
Rolling basket, reel or chopper Double-edge reel bars, hydraulic down force 14" dia., 8-bars, hydraulic down force
Coil tine harrow 3 bar coil tine 3 bar coil tine for U.S. Delta rice only
Spike tooth harrow No spike tooth option No spike tooth option
Rear hitch Optional, without harrow Optional, without harrow
Sales Literature    
Literature Number CIH03061501 Manual 47934934
Literature Date 3/1/2015 9/1/2016
Other Documentation    
Document Number Manual 47986458 SP-4061-17
Document Date 12/1/2016 6/1/2017
Status and Entry Dates    
Manufacturing Status Current Current
First Entry Date 8/17/2015 11/30/2017
Revision Date 11/30/2017 --
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