The tractor reference that shows its working
Which
tractor?
Tractor specifications with the measured power at the shaft beside the number on the brochure — because they are not the same quantity. Every figure carries its source.
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Illustration — not a photograph Case-IH MX 100
86.1 hpClaimed at the PTO
Photo: JoachimKohler-HB, CC BY-SA 4.0 via Wikimedia Commons John Deere 6910
Photo: Bene Riobó, CC BY-SA 4.0 via Wikimedia Commons Massey Ferguson MF 165
52.3 hpClaimed at the PTO
Illustration — not a photograph Renault Ceres 345
79.0 hpMeasured at the PTO
Illustration — not a photograph Fendt Farmer 309
Illustration — not a photograph New Holland T 7030
Illustration — not a photograph Deutz-Fahr Agrotron TTV 610
148 hpClaimed at the PTO
Photo: Bene Riobó, CC BY-SA 4.0 via Wikimedia Commons Claas Arion 640
On record
How much power at the shaft?
The bars count 1441 of the 3,138 tractors on record by horsepower at the PTO shaft: 38 measured by a laboratory, 1403 as claimed. 1697 with only an engine figure are not counted — engine power is a different quantity.
- <25 hp at the PTO:126 tractors
- 25–40 hp at the PTO:182 tractors
- 40–60 hp at the PTO:373 tractors
- 60–100 hp at the PTO:412 tractors
- 100–175 hp at the PTO:227 tractors
- 175–300 hp at the PTO:92 tractors
- 300+ hp at the PTO:29 tractors
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84 makes on record
- Aebi1 model
- Agco37 models
- AGCO-ALLIS39 models
- AGRIFULL24 models
- Allgaier2 models
- ALLIS-CHALMERS22 models
- BOLINDER-MUNKTELL15 models
- Brandenburger Traktorenwerke1 model
- Bührer10 models
- BUKH5 models
- Case-IH128 models
- CASE-INTERNATIONAL12 models
- Case-Steyr13 models
- Claas10 models
- County1 model
- Daimler-Benz1 model
- David Brown29 models
- Deuliewag1 model
- Deutz (KHD)37 models
- DEUTZ-ALLIS24 models
- Deutz-Fahr207 models
- Dexheimer3 models
- Doppstadt1 model
- Eicher23 models
- Ensinger Fahrzeugbau Michelstadt1 model
- Fahr44 models
- Fendt133 models
- Ferguson1 model
- Fiat167 models
- Ford116 models
- Fordson7 models
- Fordson County1 model
- Güldner36 models
- Hanomag11 models
- HELA4 models
- Hermann Lanz12 models
- Hermann Zanker KG1 model
- Hürlimann114 models
- IMR-RAKOVICA3 models
- IMT13 models
- International Harvester168 models
- J. Bautz AG1 model
- J.I. Case85 models
- John Deere156 models
- John Deere-LANZ4 models
- Josef Krümpel1 model
- Kramer22 models
- Lamborghini100 models
- Landini40 models
- Lanz21 models
- Leyland10 models
- MAN15 models
- Massey Ferguson214 models
- MASSEY-HARRIS14 models
- Massey-Harris-Ferguson1 model
- Mercedes-Benz6 models
- New Holland117 models
- New Holland-Fiat3 models
- Nuffield14 models
- OLIVER19 models
- Porsche-Diesel9 models
- Primus1 model
- Renault184 models
- RÖHR3 models
- SAME99 models
- Schlüter32 models
- SOMECA82 models
- Steyr76 models
- Steyr-Case4 models
- U.T.B SR Rumänien1 model
- URSUS32 models
- UTB20 models
- UZINA TRACTORUL2 models
- VALMET74 models
- Volvo21 models
- VOLVO-BM14 models
- VOLVO-BM-VALMET8 models
- Warchalowski13 models
- WARCHALOWSKI-MC CORMICK3 models
- WHITE63 models
- Wolfenbütteler Traktoren GmbH1 model
- Yanmar1 model
- ZETOR73 models
- Zickler1 model
Measured. Not marketed.
Why believe these numbers?
Because each one says where it came from. Where an independent laboratory has tested a tractor, its page leads with the power measured at the PTO shaft and names the test report — 232 reports on file for 38 of the 3,138 tractors on record. Where no test exists, the figure is labelled as the manufacturer’s claim, never as measured.
100%
Every figure names where it came from
153,788 stored values, drawn from 3,544 sources, each with the work, the page and the date it was read. A value with no source is not written down at all.
38of 3,138
Measured is never mixed with claimed
That many have a figure measured at the PTO shaft by a laboratory. On the rest, the power figure is labelled the manufacturer’s claim — on the figure itself, not in the small print.
232
The gap is printed, not hidden
Laboratory test reports are on file. Where one exists the page shows the brochure number struck through beside the measured one, because the difference between them is the thing a buyer is actually asking about.