John Deere DH12 Series Disk Harrows » Harvest Equipment and Theriault Equipment, Maine and Vermont

John Deere DH12 Series Disk Harrows

Model Photo


Optional rolling basket for improved field conditions

Optional rolling basket Optional rolling basket

Operators can add the optional 35.56-cm (14-in.) diameter rolling basket to help break up clods for improved levelness and uniformity of field finish. A wrench can be used to adjust the down pressure of the rolling basket to suit the operator’s needs.

Sealed bearings increase life and reduce maintenance

Sealed gang bearings for extended life Sealed gang bearings for extended life

The Frontier™ DH Series Disk Harrows have self-aligning, sealed bearings to keep dirt out for dependable, maintenance-free performance and longer life.

Notched or spherical blades

Notched blade for aggressive cutting Notched blade for aggressive cutting
Spherical blade for a smoother finish Spherical blade for a smoother finish

Choose notched or spherical blades with cast spools for the Frontier DH11, DH12, and DH13 Series Disk Harrows.


Notched blades aggressively cut and mulch, while spherical blades slice and mix residue for a smoother finish.


There are three blade configurations:

  • Front notched gang and rear spherical gang
  • Spherical blades only
  • Notched blades only

Easy-to-adjust disk gangs match changing soil conditions

Gang angle adjustments for varying soil Gang angle adjustments for varying soil

Disk gangs are easily adjustable to match changing soil conditions. Use a more aggressive angle to tear up and penetrate rough and uneven soil. Reduce the angle for smoother final seedbed preparation.

iMatch™ quick-hitch compatible for quick assembly

iMatch system for a super-quick connection iMatch system for a super-quick connection

The iMatch system converts the tractor's 3-point hitch to fixed hooks and attaching points for a super-quick connection.



  1. The iMatch kit is sold separately.
  2. The machine is AutoHitch compatible, however, it may require auto-hitch release pins to be removed for certain disk harrow configurations.

Furrow filler field-installed kits for DH12, DH13, DH15, and DH16 Series Disks

Furrow filler field-installed kits provide an additional smaller-diameter disk blade to the outside of each rear gang, helping to fill in the furrow left by the outermost disk blade.

Scraper field conversion kits for DH12 Series Disks

The scraper kit removes soil buildup from disk blades in wet, sticky soil types.

Field-installed middle breaker kit for disks

The middle breaker removes the center balk of dirt left between the front disk gangs.


Working width 2.03 m
6.67 ft


Operating 333.4 kg
735 lb
Shipping 371.9 kg
820 lb

Tractor requirements

Horsepower range Max: 33.6 kW
45 hp


Type Integral
Category Cat. 1
Quick coupler compatibility


Spacing Front
19.1 cm
7.5 in.
19.1 cm
7.5 in.
Size 18 (45.7)
Thickness 3 Nm
0.1181 in.
Quantity 20
Type Notched (front) / Notched (rear)
Smooth (front) / Smooth (rear)
Notched (front) / Smooth (rear)

Gang axle

Diameter 25.4 mm
1 in.
Type Square
Material Steel

Gang angles

Front 2, 9, 13, 24 degree (angle)
Rear 5, 11, 20, 27 degree (angle)


Frame 76.2x76.2x3 mm
3x3x0.1196 in.
and 76.2x76.2x4.8 mm
3x3x0.1875 in.
Gang 76.2x76.2x4.8 mm
3x3x0.1875 in.

Bearing hanger

Material Reinforced formed steel plate
Size 12.7 mm
0.5 in.
U-bolt size 15.9 mm
0.625 in.
Bearing type Self-aligning sealed ball bearing in pre-riveted flange

Depth control


Lighting and safety

Transport lights
Safety chain


Cylinder size
Hose length



Set-up time

Labor hours 0.25


Time period 1 year

Additional information

Date collected

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