Specifications, Service and Repair of Farm and Lawn Tractors

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New Holland T8.420 Tractor Specs

New Holland T8.420 Engine Specifications

Engine Make - New Holland FPT
Engine Model - Cursor 9L, F2C
Number of Cylinders - 6
Advertised Engine Power, Rated, hp (kW) - 367 (270)
Maximum Engine Power, hp (kW) - 419 (308)
Rated Engine Speed, rpm - 2000
Power Boost, hp (kW) - 52 (38)
Fuel Tank capacity, gal (L) - 152 (575)
Diesel Exhaust Fluid (DEF) tank capacity, gal (L) - 23.6 (89)
Displacement, cu in (L) - 531 (8.7)
Engine Bore, in (mm) - 4.61 (117)
Engine Stroke, in (mm) - 5.31 (135)
Block Design, Replaceable Liners - Wet liners
Aspiration, Turbocharged or Naturally Aspirated - eVGT Turbocharged, charge air cooled
Fuel System Description - High Pressure Common Rail
Fuel System Control, Electronic or Mechanical - Electronic
Fuel Injection to combustion chamber, Direct or Indirect - Direct
Emission Level, US EPA Tier - Tier 4A (Interim)
Selective Catalytic Reduction (SCR) w/Diesel Exhaust Fluid (DEF) - SCR w/ DEF
Exhaust Pipe, Vertical stack or Horizontal - Vertical stack
Cooling System Fan Drive Type - BorgWarner Visctronic
Electrical System Rating, Volts - 12
Alternator Rating, Amps - 200

New Holland T8.420 Tractor Power Take Off

PTO Horsepower, Basic / Optional Transmission, hp (kW) - 305 (227)
PTO Speeds, rpm - 540 / 1000
PTO operational Type (Independent; Live; Continuous) - Independent

Basic Transmission Configuration

Manufacturer's Description - Auto Command CVT
Transmission Type - Continuously variable
Number of Forward / Reverse Speeds - Infinite, 4 ranges
Maximum Speed Forward, mph (kph) - 25 (40)
Creeper Range Available - Standard in CVT
Shuttle (Forward-Reverse) Available - Yes

New Holland T8420 Optional Transmission 1

Manufacturer's Description - Auto Command CVT, 31 mph/50 kph
Transmission Type - Continuously variable
Number of Forward / Reverse Speeds - Infinite, 4 ranges

Wheels Configuration

Drive Wheels - 4WD
Steering Configuration - Front Steer

New Holland T8420 Rear Axle Assembly

Final Drive Location and Description - Inboard / Planetary
Axle Output End, Flange or Bar - Bar
Axle Bar Diameter, in (mm) - 5.0 (127)

Front Axle

Suspended Front Axle Available - Optional

Brakes

Service Brake Type - Wet disc

New Holland T8.420 Hydraulic System

Hydraulic System Type - Closed Center Load Sensing
Main Hydraulic Pump Type - Variable Displacement
Implement Pump Flow, gpm (Lpm) - 44 (166)
Optional Pump Flow, gpm (Lpm) - 75 (282)
Number of Standard Remote Valves - 4 std; 5 or 6 opt

NH T8.420 Tractor 3-Point Hitch Features

3-Point Hitch Category - Category 4N / 3
Draft Sensing or Lift Control - Electronic, lower link
Draft Link Ends Telescopic - Adjustable quick coupler
Standard Lift Capacity 24 Inches behind pin, lb (kg) - 17,500 (7938)
Optional Lift Capacity 24 Inches behind pin, lb (kg) - 19,500 (8845)

Drawbar

Drawbar Description - Category 4, Swinging

Wheelbase

Wheelbase, MFD/4WD or Track, in (mm) - 140 (3556)

Length, Width and Weight

Length, MFD/4WD or track, incl. Hitch/Drawbar, in (mm) - 255 (6477)
Overall Width, with standard wheels or tracks, in (mm) - 120 (3048) bar axle ends
Weight w/Tires, MFD/4WD or Tracks w/Cab, without ballast, lb (kg) - 31,190 (14148)

Tire Size

Front Tire Size orTrack Width, MFD/4WD or Track - 420/85, R34, R1W
Rear Tire Size or Track Width - 480/80 R50, R1W Duals

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