- WhichTractor size: Utility
- Lab tested ×1
- 2005–2007
WhichTractor size, not the maker’s category
Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is
Claas Ares 657 ATZ Full specifications
John Deere DPS 6068TRT71. The manufacturer claimed 123.2 horsepower. The only laboratory test on record is of one version: OECD Test 2294 measured 114.0 hp at the PTO of the Ares 657 ATZ (4 WD).
Engine power, claimed · gross or net not stated
123.2 hp
91.9 kW as stated by the source
Not independently tested
Claimed · standard not stated by the source
Source · Traktorenlexikon, “Claas Ares 657 ATZ”, claimed
- Weight
- 11,089 lb
- Top speed
- 24.9 mph
Claas Ares 657 ATZ specs: key facts
The Claas Ares 657 ATZ was built from 2005 to 2007.
Only one version of the Claas Ares 657 ATZ has a laboratory test on record: the Ares 657 ATZ (4 WD) produced 85.0 kW (114.0 hp) at the PTO, measured on OECD Test 2294.Source 1
The Claas Ares 657 ATZ has a claimed engine power (gross or net not stated) of 91.9 kW (123.2 hp); it has no measured PTO figure.
The Claas Ares 657 ATZ is four-wheel drive (4WD).Source 1
The Claas Ares 657 ATZ weighs 5,030 kg (11,089 lb) unladen.
The Claas Ares 657 ATZ has a rear PTO running at 540/1000 rpm.Source 1
Source · Traktorenlexikon, “Claas Ares 657 ATZ”

How much horsepower does an Ares 657 ATZ have?
The only laboratory test on record is of one version. OECD Test 2294 measured 114.0 hp at the PTO of the Ares 657 ATZ (4 WD). For the Ares 657 ATZ as a whole the figure is the 123.2 hp claimed for the engine, which is not power at the shaft.
Sources · Traktorenlexikon, “Claas Ares 657 ATZ”; OECD test report 2294, 2005
How much will an Ares 657 ATZ lift?
Hydraulic and PTO specifications for the Ares 657 ATZ are below.
| Pressure | 2,901 psi · 200 barSource 2 |
|---|---|
| Rear PTO | 540/1000 rpm |
| PTO shaft | 34.9 mm, 6 splines / 34.9 mm, 21 splines |
Source · OECD test report 2294, 2005
What transmission does an Ares 657 ATZ have?
Transmission specifications for the Ares 657 ATZ are below.
| Top speed | 24.9 mph · 40 km/h |
|---|
Source · Traktorenlexikon, “Claas Ares 657 ATZ”
How much does an Ares 657 ATZ weigh?
An Ares 657 ATZ weighs 11,089 lb (5,030 kg) unladen.
| Unladen weight | 11,089 lb · 5,030 kg |
|---|---|
| Maximum permissible mass | 19,401 lb · 8,800 kg |
| Wheelbase | 111.0 in · 2,820 mm |
| Length | 203.1 in · 5,160 mm |
| Width | 100.4 in · 2,550 mm |
| Height | 118.5 in · 3,010 mm |
| Front track | 79.5 in · 2,020 mmWikibooks gives one track for both axles |
| Rear track | 79.5 in · 2,020 mmWikibooks gives one track for both axles |
Source · Traktorenlexikon, “Claas Ares 657 ATZ”
How much fuel does an Ares 657 ATZ burn per hour?
Measured on OECD Test 2294 (tested as the Ares 657 ATZ (4 WD)), at each condition the laboratory recorded.
Cost per hour = fuel used per hour × your fuel price (per litre, or per US gallon for the gal/h figure).
| Test condition | Fuel per hour |
|---|---|
| Maximum PTO powerPTO 85.0 kW (114.0 hp) at 975 rpm | 27.02 L/h 7.14 gal/h |
| Rated engine speedPTO 78.7 kW (105.5 hp) at 1,100 rpm | 27.88 L/h 7.37 gal/h |
| Standard PTO speedPTO 84.7 kW (113.6 hp) at 1,000 rpm | 27.87 L/h 7.36 gal/h |
| 75% load, 50% load | Not on record for this test |
Source · OECD Test 2294
Which tractors compare with an Ares 657 ATZ?
Within 10% of its 123.2 hp of claimed engine power, the same type, and first built within 15 years of it.
- New Holland T 6050 Plus123.2 hp engine, claimed · 2007–2012Side by side with the Ares 657 ATZ →
- New Holland T 6050 Elite123.2 hp engine, claimed · 2008–2012Side by side with the Ares 657 ATZ →
- New Holland TM 135123.2 hp engine, claimed · 1999–2002Side by side with the Ares 657 ATZ →
- Case-IH CS 130123.2 hp engine, claimed · 1997–2003Side by side with the Ares 657 ATZ →
- VALMET 8150123.2 hp engine, claimed · 1995–2004Side by side with the Ares 657 ATZ →
- Landini 130 DT123.2 hp engine, claimed · 1993–1997Side by side with the Ares 657 ATZ →
Everything else people ask
Is an Ares 657 ATZ two-wheel drive or four-wheel drive?
The Claas Ares 657 ATZ is four-wheel drive (4WD).
What PTO does an Ares 657 ATZ have?
An Ares 657 ATZ has a 540/1000 rpm rear PTO on a 34.9 mm, 6 splines / 34.9 mm, 21 splines shaft.
Where this page comes from
Compiled from OECD tractor test report 2294; and Traktorenlexikon, “Claas Ares 657 ATZ”.
Sources
Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution
- OECD Code 2 test report 2/2 294: Claas Ares 657 ATZ — Licence not stated by the publisher; facts cited, OECD-2294 · published 2005-11-29 · retrieved 2026-09-14. OECD; testing station Cemagref, Antony, France. Original document
- Traktorenlexikon: Claas Ares 657 ATZ — CC BY-SA 4.0, WIKIBOOKS-TL-103023 · revision 1042128. Wikibooks contributors (Traktorenlexikon). Original document