Case-IH STX 440 Hydraulics & PTO specs

An STX 440 lifts 24,617 lb (11,166 kg) at the lower-link ends.

An STX 440 has a 1000 rpm rear PTO.

On OECD Test 1957, the STX 440 delivered 454.2 hp (338.7 kW) at the PTO shaft, at maximum power.

20 hydraulics and PTO values on record for the STX 440.

Engine power, claimed · gross or net not stated

434.0 hp

323.6 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “Case-IH STX 440”, 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.

How much will an STX 440 lift?

An STX 440 lifts 24,617 lb (11,166 kg) at the lower-link ends.

Hydraulics & hitch — STX 440 Hydraulics & hitch
Hydraulic centre	Closed centre^{Source 1}
Pump flow	41.0 gpm · 155.2 L/min
Hydraulic pressure	3,002 psi · 207 bar
Three-point hitch category	Category 4
Lift capacity at ball ends	24,617 lb · 11,166 kg
Hitch control	Position, draft and mixed control

Source · Traktorenlexikon, “Case-IH STX 440”

An STX 440 has a 1000 rpm rear PTO.

PTO — STX 440 PTO
Rear PTO drive, optional	Engine-driven
Rear PTO independence, optional	Independent
PTO engages under load, optional	Yes
Rear PTO speeds	1000 rpm
Rear PTO shaft	1 3/4"- 20 teilig (Form-3)

Source · Traktorenlexikon, “Case-IH STX 440”

On OECD Test 1957, the STX 440 delivered 454.2 hp (338.7 kW) at the PTO shaft, at maximum power.

OECD Test 1957 — STX 440 as tested, configuration as printed: “Articulated 4 WD”
PTO power, at maximum power	454.2 hp · 338.7 kWAt 851 PTO rpmAt 1,700 engine rpm
PTO power, at rated engine speed	400.7 hp · 298.8 kWAt 1,001 PTO rpmAt 2,000 engine rpm
PTO power, at standard PTO speed	400.7 hp · 298.8 kWAt 1,001 PTO rpmAt 2,000 engine rpm
PTO shaft speed, at maximum power	851 rpm
PTO shaft speed, at rated engine speed	1,001 rpm
PTO shaft speed, at standard PTO speed	1,001 rpm
Hydraulic power, at maximum power	50.8 hp · 37.9 kW
Hydraulic pump delivery, at maximum power	35.6 gpm · 134.8 L/min
Three-point lift force	21,492 lbf · 95.6 kN

Source · OECD test report 1957, 2001

20 hydraulics and PTO values from OECD test report 1957, 2001; and Traktorenlexikon, “Case-IH STX 440”.

Sources checked

14 SEP 2026

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

OECD Code 2 test report 2/1 957: Case IH STX 440 — Licence not stated by the publisher; facts cited, OECD-1957 · published 2001-05-31 · retrieved 2026-09-14. OECD. Original document
Traktorenlexikon: Case-IH STX 440 — CC BY-SA 4.0, WIKIBOOKS-TL-115864 · revision 985168. Wikibooks contributors (Traktorenlexikon). Original document