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ATC M-3 Terratrac vs International Harvester 3434
Verdict: ATC M-3 Terratrac vs International Harvester 3434
The ATC M-3 Terratrac and the International Harvester 3434 are both industrial tractors — here is how they stack up on the figures that matter. Both are rated at the same 43 hp. ATC M-3 Terratrac is the lighter machine (2,866 kg vs 6,190 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. International Harvester 3434 is the newer design (1966 vs 1953). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.
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Fit & specs
ATC
62
Fit score
Best match
Clear
International Harvester
62
Fit score
Best match
Clear
Rated power
43 hp
43 hp
Confidence
40%
40%
Guide price
—
—
Overview
Manufacturer
ATCReference
International HarvesterReference
liquid-cooledReference
liquid-cooledReference
Drive
crawlerReference
—
Engine
Engine
31.7 kWReference
32.1 kWReference
Displacement
2.7 LReference
2.5 LReference
Bore/Stroke
87 x 111 mmReference
89 x 102 mmReference
Power
31.7 kWReference
32.1 kWReference
Rated RPM
1850Reference
2000Reference
Torque
168.6 NmReference
162.7 NmReference
Torque RPM
1200Reference
1300Reference
Starter
electricReference
—
Starter volts
6Reference
12Reference
Fuel system
—
indirect injectionReference
Pre-heating
—
glow plugsReference
Transmission
Type
gearReference
gearReference
Gears
3 forward and 1 reverseReference
8 forward and 2 reverseReference
Dimensions
Weight
2866 kgReference
4263 kgReference
Operating weight
2866 kgReference
—
Ground clearance
35 cmReference
—
Gauge
152 cmReference
—
Wheelbase
—
187 cmReference
Length
—
498 cmReference
M-3 Serial Numbers
1953
M3-001Reference
—
1954
M3-006Reference
—
1955
M3-062Reference
—
1956
M3-178Reference
—
Final
M3-299Reference
—
ATC M-3 Tracks
Width
30 cmReference
—
Length on ground
144 cmReference
—
Area on ground
0.9 m²Reference
—
Ground pressure
0.3 barReference
—
Variants
434
—
utility tractorReference
3434
—
industrial tractorReference
PTO & Hydraulics
Pump flow
—
73.1 lpmReference
Rear Type
—
II/IReference
Rear PTO
—
transmissionReference
Rear PTO Type
—
540 (1.375)Reference
International Harvester 3434 attachments
Attachment overview
International B-1 Backhoe
Backhoe type
—
International 43-2 Side-Shift BackhoeReference
Transport height
—
330 cmReference
Digging depth
—
342 cmReference
Reach from pivot
—
447 cmReference
Loading height
—
322 cmReference
Swing Arc
—
180°Reference
International 43-2 Side-Shift Backhoe
Bucket width
—
60 cmReference
Bucket force
—
3027 kgReference
Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.