WhichTractor
  • Articulated
  • WhichTractor size: Standard-size
  • Lab tested ×1
  • 2000–2005

It sits on the standard-size/high-power boundary, so either size is a fair description. WhichTractor size, not the maker’s category

Case-IH STX 275 Engine specs

19 engine values on record for the STX 275.

Engine power, claimed · gross or net not stated

271.3 hp

202.3 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Case-IH STX 275”, claimed

This is the maker’s own figure, measured at the engine. Power at the PTO is lower — by how much, for this machine, nobody has measured.

What engine is in the diesel STX 275?

The diesel STX 275 has a CUMMINS 6 TAA-8304, a 6-cylinder 8.27 L diesel engine. Fitted to STX 275.

Engine — CUMMINS 6 TAA-8304 specifications
Make & modelCUMMINS 6 TAA-8304Source 3
FuelDieselSource 3
Cylinders6Source 3
Displacement504.5 ci · 8.27 LSource 3
CoolingLiquid-cooled
Maximum torque954 lb·ft · 1,293 N·m
Maximum torque speed1,100 rpm
Air cleanerNelson dry air filter with pre-separator
Cylinders6
Displacement8.7 qt · 8.3 L
Bore4.5 in · 114 mm
Stroke5.3 in · 135 mm
Rated engine speed2,000 rpm
Torque rise52 %

Source · Traktorenlexikon, “Case-IH STX 275”

What engine is in an STX 275?

An STX 275 has a Case 6TAA-8304, a 6-cylinder 8.27 L engine. Fitted to STX 275 (Articulated 4 WD with dual wheels).

Engine — Case 6TAA-8304 specifications
Make & modelCase 6TAA-8304
Cylinders6
Displacement504.5 ci · 8.27 L
AspirationSupercharged

Source · OECD test report 1975, 2002

How much fuel does an STX 275 use?

On OECD Test 1975, the STX 275 used 15.02 gal/h (56.9 L/h) at maximum power.

OECD Test 1975 — STX 275 as tested, configuration as printed: “Articulated 4 WD with dual wheels”
Fuel consumption, at maximum power15.02 gal/h · 56.9 L/hSource 2
Fuel consumption, at rated engine speed13.61 gal/h · 51.5 L/hSource 2
Fuel consumption, at standard PTO speed13.61 gal/h · 51.5 L/hSource 2
Engine speed, at maximum power1,800 rpmSource 2
Engine speed, at rated engine speed2,000 rpmSource 2
Engine speed, at standard PTO speed2,000 rpmSource 2
Maximum torque954 lb·ft · 1,293.0 N·mSource 2
Torque rise51.9%Source 2

Source · OECD test report 1975, 2002

Sources and how this page was built

19 engine values from Traktorenlexikon, “Case-IH MX255”; Traktorenlexikon, “Case-IH STX 275”; and OECD test report 1975, 2002.

Sources checked

14 SEP 2026

Spotted an error?

Sources

Facts taken from these documents, units converted. Numbers beside a figure refer to this list. Licences and attribution

  1. OECD Code 2 test report 2/1 975: Case IH STX 275 — Licence not stated by the publisher; facts cited, OECD-1975 · published 2002-02-28 · retrieved 2026-09-14. OECD. Original document
  2. OECD Code 2 test report 2/1 975: New Holland TJ 275 — Licence not stated by the publisher; facts cited, OECD-1975 · published 2002-02-28 · retrieved 2026-09-14. OECD. Original document
  3. Traktorenlexikon: Case-IH MX255 — CC BY-SA 4.0, WIKIBOOKS-TL-90521 · revision 983929. Wikibooks contributors (Traktorenlexikon). Original document
  4. Traktorenlexikon: Case-IH STX 275 — CC BY-SA 4.0, WIKIBOOKS-TL-115861 · revision 985160. Wikibooks contributors (Traktorenlexikon). Original document