Saurer 4K 4FA

The Saurer 4K 4FA is an Austrian armoured personnel carrier with caterpillar tracks. It was later replaced by the Steyr 4K 7FA G 127. It went into production in 1961.

Saurer 4K 4FA
Class Vehicle
Type Armoured Fighting Vehicle
Manufacturer Saurer
Origin Austria
Country Name Origin Year
Austria 1961
Country Name Operational Year Retirement Year
Austria View
Bolivia View
Greece View
Nigeria View
ManufacturerName Production From Production To Quantity
Saurer View


4K 4FA-G2 (Grenadier-Schützenpanzer)

This is similar to the basic 4K 4FA-G1 but is fitted with an Oerlikon Contraves GAD-AOA one-person turret which is armed with a 20 mm Oerlikon Contraves cannon Model 204 GK. This is belt-fed and can be used in both the ground and anti-aircraft roles. The weapon is provided with 100 rounds of ready use ammunition and the empty cartridge cases and links are ejected outside the turret. The 20 mm cannon has an elevation of +70° and a depression of -12°, turret traverse is 360°. Although its company designation is the 4K 4FA-G2 its Austrian Army designation is the MK66SPz Schützenpanzer/Maschinenkanone 66.

4K 4FA-San (Ambulance)

Full designation is 4K 4FA-San (Sanitätspanzer). This model is unarmed and has a crew of two, the driver and the medical orderly, and it can carry four sitting and two stretcher patients. The stretchers are carried in the left side of the hull with the four sitting patients on the bench seat down the right side of the hull, strapped in with waist and shoulder straps.

4K 4F GrW1 81 mm Mortar Carrier (Granatwerfer-SPz)

Mounted in the rear of the troop compartment, firing forwards, is an 81 mm mortar. A 120 mm self-propelled mortar was developed to the prototype stage (GrW2) but never entered service. The vehicle is armed with an 8.1 cm mGrW 82 (Mittelschwere Granatwerfer 82). Minimum range of the mortar is 180 m with maximum range being 5,850 m, normal rate of fire is 6 rounds per minute with maximum rate of fire being 18 to 25 rounds per minute.

81 mm Multiple Rocket Launcher

This is the basic APC with an Oerlikon Contraves 81 mm rocket launcher mounted on a turntable over the rear troop compartment. It is understood[by whom?] that these vehicles have now been phased out of service.

Schützenpanzer A1/LWT

This is the section vehicle for the MBDA Mistral man-portable surface-to-air missile systems in the Pz1FAL batteries.

ELVO Leonidas

Version of the vehicle used by the Greek Army and the Cypriot National Guard with a few modifications. It is armed with an M2 Browning Machine Gun and powered by a 320 hp engine. It was produced from Greek vehicle manufacturer ELVO from 1981. ELVO developed an upgrade called Leonidas 2 which entered production in 1986. All vehicles in Greek service have been upgraded to that standard.

In 1956, the contractor Osterreichische Saurer-Werke from Vienna (which was taken over by Steyr-Daimler-Puch AG in 1970) started development of an armoured personnel carrier. The first prototype, the 3K 3H, was completed in 1958 and the second, the 4K 3H, the following year. They are both powered by a Saurer 3H 200 hp diesel engine.

The next model, the 4K 2P, had a different hull layout, a new torsion bar suspension and was powered by a 250 hp Saurer 2P diesel engine. In appearance it was similar to the first production vehicles which were completed in 1961 and designated 4K 4F. Later production vehicles were the 4K 3FA (230 hp) and the 4K 4FA (250 hp), which differed only in minor details such as their Sauer engines.

A total of 445 production vehicles was delivered to the Austrian Army in the following versions: 30 4K 4F, 211 4K 3FA, 38 4K 3FA-FS, 12 4K 4FA-Fü/FIA, 15 4K 4FA-San, 76 4K 4FA-G2, 60 4K 4FA FüA 1 to 4 series, three 4K 3FA Fül and a number of 4K 3FA GrW1 81 mm mortar carriers which were conversions of earlier vehicles. Production was finally completed in 1969. The vehicle was succeeded in production by a new model, described in detail in a separate entry, called the 4K 7FA which uses the same automotive components as the SK-105 Kürassier light tank also manufactured by Steyr-Daimler-Puch. Production of the 4K FA and SK 105 are complete and all marketing of these has ceased.

In mid-1999, the Austrian MoD awarded Steyr-Daimler-Puch a contract for the supply of 112 ASCOD Ulan infantry fighting vehicles for the Austrian Army. These were delivered from 2002 to 2004 and has now replaced at least part of the current Saurer 4K 4FA APC fleet of the Austrian Army. The 4K 4FA series will remain in service with Austria for some time.

Type Armoured personnel carrier
Place of origin Austria
Service history
Used by View in "Operators"
Production history
Manufacturer Saurer-Werk
Weight 4K 4FA-G2: 15 tonnes
4K 4FA-G1: 12.5 tonnes
Length 5.4 m (17 ft 9 in)
Width 2.5 m (8 ft 2 in)
Height 2.1 m (6 ft 11 in)
Crew 2
Passengers 8
Armour steel
4K 4FA-G2: 20 mm Oerlikon Contraves cannon Model 204 GK
4K 4FA-G1: 12.7 mm M2 Browning machine gun
Engine 6-cylinder Saurer diesel engine
250 hp (184 kw)
Suspension torsion bar, 5 road wheels
370 km (230 mi)
Speed 65 km/h (40 mph)

End notes