Specifications, Service, and Repair of Farm and Lawn Tractors

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New Holland TT45A Specs

NH TT45A Engine Specifications

Advertised Engine Power, Rated, hp (kW) - 40 (28.8)
Maximum Engine Power, hp (kW) - Same as Advertised
Rated Engine Speed, rpm - 2600
Power Boost, hp (kW) - No boost
Fuel Tank capacity, gal (L) - 13.2 (49.96)
Diesel Exhaust Fluid (DEF) tank capacity, gal (L) - No DEF
Engine Make - Shibaura
Engine Model - N844
Number of Cylinders - 4
Displacement, cu in (L) - 121.7 (2.0)
Engine Bore, in (mm) - 3.31 (84)
Engine Stroke, in (mm) - 3.54 (90)
Block Design, Replaceable Liners - Parent bore
Aspiration, Turbocharged or Naturally Aspirated - Naturally aspirated
Fuel System Description - In-Line Pump System
Fuel System Control, Electronic or Mechanical - Mechanical
Fuel Injection to combustion chamber, Direct or Indirect - Indirect
Emission Level, US EPA Tier - Tier 2
Selective Catalytic Reduction (SCR) w/Diesel Exhaust Fluid (DEF) - No
Exhaust Gas Recirculation (EGR) - No
Cleanup Catalyst (CUC) - No
Diesel Oxidation Catalyst (DOC) - No
Diesel Particulate Filter (DPF) - No
Exhaust Pipe, Vertical stack or Horizontal - Horizontal
Cooling System Fan Drive Type - Belt
Electrical System Rating, Volts - 12
Alternator Rating, Amps - 40

Power Take-Off

PTO Horsepower, Basic / Optional Transmission, hp (kW) - 35 (26.1)
PTO Speeds, rpm - 540
PTO operational Type (Independent; Live; Continuous) - Fully independent

New Holland TT45A Transmission

Manufacturer's Description - Constant mesh
Transmission Type - Constant mesh
Number of Forward / Reverse Speeds - 8F / 2F
Maximum Speed Forward, mph (kph) - 18.9 (30.43)
Creeper Range Available - No
Shuttle (Forward-Reverse) Available - No

Wheels and Tires

Drive Wheels or Tracks; 2WD, 4WD, 2WD / 4WD, 2 Tracks or 4 Tracks - 2WD
Steering Configuration: Front Steer, Frame Articulated, or Track-type Steer - Front Steer
Front Tire Size, 2WD - 6.0 x 16, 6PR (F2)
Front Tire Size orTrack Width, MFD/4WD or Track - No MFD/4WD
Rear Tire Size or Track Width - 12.4 x 28, 6PR (F2)
Wheelbase, 2WD, in (mm) - 77.8 (1975)
Wheelbase/Trackbase, MFD/4WD or Track, in (mm) - No MFD/4WD

NH TT45A Axles and Brakes

Final Drive Location and Description - Bull Gear / Outboard
Axle Output End, Flange or Bar - Flange
Axle Bar Diameter, in (mm) - No bar axle
Suspended Front Axle Available - No
Service Brake Type - Wet disc

Hydraulic System

Hydraulic System Type - Open center
Main Hydraulic Pump Type - Gear
Implement Pump Flow, gpm (Lpm) - 9.8 (37)
Optional Pump Flow, gpm (Lpm) - No option
Number of Standard Remote Valves - 0

New Holland TT45A Hitch

3-Point Hitch Category - Category 1 / 2
Optional Hitch Category - No option
Draft Sensing or Lift Control - Mechanical, lower link
Draft Link Ends Telescopic - Fixed
Optional Lift Capacity 24 Inches behind pin, lb (kg) - No option
Standard Lift Capacity at lift pin, lb (kg) - 2,550 (1160)
Optional Lift Capacity at lift pin, lb (kg) - No option
Drawbar Description - Swinging, extendable

NH TT45A Dimensions and Weight

Length, 2WD, incl. Hitch/Drawbar, in (mm) - 121 (3075)
Length, MFD/4WD or track, incl. Hitch/Drawbar, in (mm) - No MFD/4WD
Height to Top of Cab, in (mm) - No Cab
Height to Top of ROPS raised, in (mm) - 95 (2415)
Weight, 2WD w/ROPS, lb (kg) - 3,600 (1633)
Weight, MFD/4WD w/ROPS, lb (kg) - No MFD/4WD
Weight, 2WD w/Cab, lb (kg) - No Cab
Weight, MFD/4WD or Tracks w/Cab, without ballast, lb (kg) - No MFD/4WD

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