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New Holland Workmaster 40C vs Thieman Harvester Theiman
Verdict: New Holland Workmaster 40C vs Thieman Harvester Theiman
The New Holland Workmaster 40C and the Thieman Harvester Theiman are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 40 hp. New Holland Workmaster 40C is the newer design (2026 vs 1936). 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
New Holland
62
Fit score
Best match
Clear
Thieman Harvester
62
Fit score
Best match
Clear
Rated power
40 hp
40 hp
Confidence
40%
40%
Guide price
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Overview
Manufacturer
New Holland (a part of CNH)Reference
Thieman HarvesterReference
liquid-cooled inlineReference
The engine from the Ford model A was available with the Thieman although other engines could be used.Reference
Steering
—
manualReference
Variants
Farmall 40A
similar CaseIH modelReference
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Engine
Fuel tank
47.7 LReference
—
Engine
29.8 kWReference
29.8 kWReference
Displacement
1.9 LReference
3.3 LReference
Bore/Stroke
88 x 103 mmReference
98 x 108 mmReference
Power
29.8 kWReference
29.8 kWReference
Starter
electricReference
—
Starter volts
12Reference
—
Compression
—
5.9:1Reference
Rated RPM
—
2200Reference
Transmission
Type
hydrostaticReference
gearReference
Gears
infinite forward and reverse (3-range)Reference
3 forward and 1 reverseReference
PTO & Hydraulics
Rear Type
IReference
—
Rear lift (at ends)
937 kgReference
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Rear PTO
independentReference
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Rear PTO Type
540 (1.375)Reference
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Workmaster 40C Serial Numbers
Location:
Serial number decal on the left side of the tractor frame, above the front axle.Reference
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Electrical
Ground
negativeReference
—
Charging system
alternatorReference
—
Battery volts
12Reference
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Links
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.