• Rigid chassis
  • WhichTractor size: Utility
  • No lab test on file
  • 1991–1997

It was ranked on an engine power figure whose source does not say gross or net. WhichTractor size, not the maker’s category

AGCO-ALLIS 6690 Engine specs

13 engine values on record for the 6690.

Engine power, claimed · gross or net not stated

88.8 hp

66.2 kW as stated by the source

No lab test on file

Claimed · standard not stated by the source

Source · Traktorenlexikon, “AGCO-Allis 6690”, 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 a 6690?

A 6690 has a S.L.H. 1000.4 AT, a 4-cylinder 4.00 L diesel engine.

Engine — S.L.H. 1000.4 AT specifications
Make & modelS.L.H. 1000.4 AT
FuelDiesel
Cylinders4
Displacement244.1 ci · 4.00 L
CoolingAir-cooled
Fuel injectionDirect injection
Maximum torque224 lb·ft · 304 N·m
Maximum torque speed1,355 rpm
Air cleanerDonaldson dry air filter
Cylinders4
Displacement4.2 qt · 4.0 L
Bore4.1 in · 105 mm
Stroke4.5 in · 115.5 mm
Rated engine speed2,500 rpm
Torque rise28 %

Source · Traktorenlexikon, “AGCO-Allis 6690”

Sources and how this page was built

13 engine values from Traktorenlexikon, “AGCO-Allis 6690”.

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. Traktorenlexikon: AGCO-Allis 6690 — CC BY-SA 4.0, WIKIBOOKS-TL-122653 · revision 1085984. Wikibooks contributors (Traktorenlexikon). Original document