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

Derived by WhichTractor from a sourced three-point linkage. How we decide what a machine is

Case-IH STX 275 specs: hp, weight, years

CUMMINS 6 TAA-8304 six-cylinder diesel or Case 6TAA-8304. The manufacturer claimed 271.3 horsepower. The only laboratory test on record is of one version: OECD Test 1975 measured 274.1 hp at the PTO of the STX 275 (Articulated 4 WD with dual wheels). Compared at the engine's rated speed, where the brochure figure is quoted, the shaft gave 239.0 hp — 11.9% below the claim.

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.

Weight
31,795 lb
3-point lift
19,335 lb
Hyd. flow
58.0 gpm
Top speed
18.6 mph

Case-IH STX 275 specs: key facts

  • The Case-IH STX 275 was built from 2000 to 2005.

  • Only one version of the Case-IH STX 275 has a laboratory test on record: the STX 275 (Articulated 4 WD with dual wheels) produced 204.4 kW (274.1 hp) at the PTO, measured on OECD Test 1975.Source 1

  • The Case-IH STX 275 has a claimed engine power (gross or net not stated) of 202.3 kW (271.3 hp); it has no measured PTO figure.

  • The Case-IH STX 275 was built in four-wheel drive (4WD) and four-wheel drive with equal-size wheels versions, depending on configuration.Source 1

  • The Case-IH STX 275 has a CUMMINS 6 TAA-8304 engine, a 6-cylinder 8.27 L diesel unit.Source 2

  • The Case-IH STX 275 weighs 14,422 kg (31,795 lb) unladen.

  • The Case-IH STX 275 has a rear PTO running at 1000 rpm.

  • The three-point hitch of the Case-IH STX 275 lifts 8,770 kg (19,335 lb) at the lower-link ends.

  • The hydraulic pump of the Case-IH STX 275 delivers 219.6 L/min (58.0 gpm).

Source · Traktorenlexikon, “Case-IH STX 275”

How does the STX 275 compare with its class?

  • Strength:

    A hydraulic pump flow of 220 L/min is high for its class — 83% above the median of 120 L/min across the 47 machines within 10% of its power that hold this figure.

  • Worth knowing:

    An unladen mass of 14,422 kg is high for its class — 41% above the median of 10,260 kg across the 63 machines within 10% of its power that hold this figure.

Derived by WhichTractor from 63 comparable records. How we work this out

Illustration of the 2000–2005 Case-IH STX 275, a 271 hp farm tractor, a drawing generated from its specification record
Illustration — not a photograph

How much horsepower does an STX 275 have?

The only laboratory test on record is of one version. OECD Test 1975 measured 274.1 hp at the PTO of the STX 275 (Articulated 4 WD with dual wheels). For the STX 275 as a whole the figure is the 271.3 hp claimed for the engine, which is not power at the shaft.

Engine, claimed (gross/net not stated)
271.3 hp

Sources · Traktorenlexikon, “Case-IH STX 275”; OECD test report 1975, 2002

What engine is in an STX 275?

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

Engine — STX 275 engine specifications
Make & modelCUMMINS 6 TAA-8304
Cylinders6, liquid-cooledSource 3
Displacement504.5 ci · 8.27 L
Max torque954 lb·ft · 1,293 N·m @ 1,100 rpmSource 3
Electrical system12 VSource 3

Source · Traktorenlexikon, “Case-IH MX255”

How much will an STX 275 lift, and what is its hydraulic flow?

An STX 275 lifts 19,335 lb (8,770 kg) at the lower-link ends of its Category 4 three-point hitch.

Hydraulics & PTO — STX 275 hydraulics and PTO specifications
Pump flow58.0 gpm · 219.6 L/min
Pressure2,698 psi · 186 bar
Hitch categoryCategory 4
Lift at ends19,335 lb · 8,770 kg
Rear PTO1000 rpm
PTO shaft1 3/4"- 20 teilig (Form-3)

Source · Traktorenlexikon, “Case-IH STX 275”

What transmission does an STX 275 have?

Transmission specifications for the STX 275 are below.

Transmission — STX 275 transmission specifications
BrakesPedal-operated hydraulic wet disc brake acting on the rear axle
SteeringHydrostatic Eaton steering series 20 two integrated double-acting steering cylinders
Top speed18.6 mph · 30 km/h

Source · Traktorenlexikon, “Case-IH STX 275”

How much does an STX 275 weigh?

An STX 275 weighs 31,795 lb (14,422 kg) unladen.

Weights & dimensions — STX 275 weights and dimensions
Unladen weight31,795 lb · 14,422 kg
Maximum permissible mass33,069 lb · 15,000 kg
Wheelbase139.0 in · 3,531 mm
Length276.0 in · 7,010 mm
Width120.0–152.0 in · 3,048–3,861 mm
Height137.0 in · 3,480 mm
Front track61.0–130.0 in · 1,549–3,302 mmWikibooks gives one track for both axles
Rear track61.0–130.0 in · 1,549–3,302 mmWikibooks gives one track for both axles

Source · Traktorenlexikon, “Case-IH STX 275”

What oil does an STX 275 take, and how much?

An STX 275 engine takes 25.1 qt (23.8 L). Single source, not independently verified — always confirm against the operator’s manual for your machine.

STX 275 fluid capacities, grades and service intervals
SystemCapacity
Engine oil25.1 qt · 23.8 LSource: Traktorenlexikon, “Case-IH STX 275” · single source, not independently verified
Transmission54.0 qt · 51.1 LSource: Traktorenlexikon, “Case-IH STX 275” · single source, not independently verified
Hydraulic188.1 qt · 178.0 LSource: Traktorenlexikon, “Case-IH STX 275” · single source, not independently verified
Cooling system45.5 qt · 43.1 LSource: Traktorenlexikon, “Case-IH STX 275” · single source, not independently verified

Always confirm against the operator’s manual for your machine before service.

How much fuel does an STX 275 burn per hour?

Measured on OECD Test 1975 (tested as the STX 275 (Articulated 4 WD with dual wheels)), 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).

Fuel use measured on OECD Test 1975
Test conditionFuel per hour
Maximum PTO powerPTO 204.4 kW (274.1 hp) at 901 rpm56.85 L/h 15.02 gal/h
Rated engine speedPTO 178.2 kW (239.0 hp) at 1,001 rpm51.51 L/h 13.61 gal/h
Standard PTO speedPTO 178.2 kW (239.0 hp) at 1,001 rpm51.51 L/h 13.61 gal/h
75% load, 50% loadNot on record for this test

Source · OECD Test 1975

Which tractors compare with an STX 275?

Within 10% of its 271.3 hp of claimed engine power, the same type, and first built within 15 years of it.

Common questions about the Case-IH STX 275

Is an STX 275 two-wheel drive or four-wheel drive?

The Case-IH STX 275 was built in four-wheel drive (4WD) and four-wheel drive with equal-size wheels versions, depending on configuration.

What PTO does an STX 275 have?

An STX 275 has a 1000 rpm rear PTO on a 1 3/4"- 20 teilig (Form-3) shaft.

Sources and how this page was built

Compiled from OECD tractor test report 1975; Traktorenlexikon, “Case-IH STX 275”; and Traktorenlexikon, “Case-IH MX255”.

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. Traktorenlexikon: Case-IH MX255 — CC BY-SA 4.0, WIKIBOOKS-TL-90521 · revision 983929. Wikibooks contributors (Traktorenlexikon). Original document
  3. Traktorenlexikon: Case-IH STX 275 — CC BY-SA 4.0, WIKIBOOKS-TL-115861 · revision 985160. Wikibooks contributors (Traktorenlexikon). Original document