T-54A produced under license in Czechoslovakia.
Because it was of higher quality when compared to the Soviet produced T-54A, it became a hit on the export market.
Unlike the Soviet produced T-54A, it had a redesigned engine access plates, three plates fitted to the hull to reduce track shedding and oval engine grills in the engine decks.

T-54AK produced in Czechoslovakia under license.
It was fitted with a base plate on the turret roof for the radio mast.

T-54AR "Rieka" (Rieka - river) - T-54 modernization with a fording snorkel.
It is similar to soviet T-54AM.

T-54AM - T-54B produced under license in Poland and Czechoslovakia.

T-54AMK - T-54BK command tank produced in Czechoslovakia.

T-55AMB - Czechoslovak upgraded T-55A with Czechoslovakia-produced laser rangefinder, fire control system and wind sensor mast with thickened center section mounted on rear of turret roof.

T-55AM1 - Czechoslovakian version of the T-55AM with Czechoslovak-produced "Kladivo" fire control system with a ballistic computer, a laser range finder (different from the Russian KTD-1) on top of the gun and a cross-wind sensor mast mounted on rear of turret roof.

T-55AM1K3 - Command tank version of the T-55AM1.

T-55AM2 - T-55AM1 fitted with the passive BDD appliqué armour for turret (horseshoe shape) and hull front (fitted to upper glacis plate), sideplates fitted with extensions protecting catwalk fuel tanks, the improved V-55U engine with an integral supercharger delivering 620 hp and the R-173P radio system.
The BDD armour panels consist of armoured steel boxes filled with Penpolyurethane.
In addition there are cavities which can be filled with water or sand for additional protection.
The BDD armour panels consist of armoured steel boxes filled with Penpolyurethane and thin HHS steel plates.
The BDD semi-reactive armor adding 120mm of protection against APDS and 200-250mm of protection against HEAT ammunition, thus these tanks had similar protection as early versions of T-72.
There is also a cluster of 8 smoke-grenade launchers on the right-hand-side of turret.
T-55AM2 is fitted with additional headlights on the front fenders.

T-55AM2 Dyna-1 - T-55AM2 fitted with new armour array.

T-55AM2B - T-55AM2 with the ability to fire the laser-guided 9M117 "Bastion" (AT-10 Stabber) ATGM via the main gun.
The T-55AM2B is fitted with the 1K13 BOM gunner's sight in place of the original TPN-1M-22.

T-55AM2K1 - command tank for company commanders with an additional radio set R-173.

T-55AM2K2 - command tank for battalion commanders with an additional radio set R-173.

T-55AM2K3 - regiment commander's version with radio sets R-173 and R-143T2, a generator NS1250B and a slim 10m antenna mast.
Carries 12 rounds less than a standard tank.

VT-55A (vyprošťovací tank - recovery tank) - Czechoslovak ARV built on T-55A hull and fitted with a crane with 15 tonnes capacity, a main winch with 44 tonnes capacity and a secondary winch with 800 kg capacity.
It was first called MT-55 but this designation was given to the bridge laying tank and therefore the designation had to be changed.

VT-55KS (kapitalistické státy) - Export version for non-Warsaw Pact countries like Iraq and Syria.
A total of 2,321 was produced between 1967 and 1983.

ZS-55A (ženijní stroj) - VT-55A fitted with dozer blade BTU-55.

MT-55A (Mostni Tank - bridge layer tank) - Czechoslovakian redesigned version of MT-55.
According to some Western sources there are two models, namely the basic model - also known as MT-55K - and the MT-55L with a longer bridge.
Between 1969 and 1983, 1,278 MT-55A's were built by TS Martin.

MT-55KS (kapitalistické státy) - Export version for non-Warsaw Pact countries like India, Iraq and Syria.
183 vehicles built from 1971.

PM-55L (přepravník mostu) - Lightweight version that uses a Tatra T-813 truck as carrier and launch platform.

JVBT-55A (jeřábový vyprošťovací buldozerový tank) - Czechoslovakian crane tank, fitted with a big 15t crane, a winch and a BTU-55 dozer blade.
Combat weight is 42 tons.
From 1967, 508 were produced.

JVBT-55KS (kapitalistické státy) - Export version of JVBT-55
T-54A produced under license in Czechoslovakia. Because it was of higher quality when compared to the Soviet produced T-54A, it became a hit on the export market. Unlike the Soviet produced T-54A, it had a redesigned engine access plates, three plates fitted to the hull to reduce track shedding and oval engine grills in the engine decks.
T-54AK produced in Czechoslovakia under license. It was fitted with a base plate on the turret roof for the radio mast.
T-54AR "Rieka" (Rieka - river) - T-54 modernization with a fording snorkel. It is similar to soviet T-54AM.
T-54AM - T-54B produced under license in Poland and Czechoslovakia.
T-54AMK - T-54BK command tank produced in Czechoslovakia.
T-55AMB - Czechoslovak upgraded T-55A with Czechoslovakia-produced laser rangefinder, fire control system and wind sensor mast with thickened center section mounted on rear of turret roof.
T-55AM1 - Czechoslovakian version of the T-55AM with Czechoslovak-produced "Kladivo" fire control system with a ballistic computer, a laser range finder (different from the Russian KTD-1) on top of the gun and a cross-wind sensor mast mounted on rear of turret roof.
T-55AM1K3 - Command tank version of the T-55AM1.
T-55AM2 - T-55AM1 fitted with the passive BDD appliqué armour for turret (horseshoe shape) and hull front (fitted to upper glacis plate), sideplates fitted with extensions protecting catwalk fuel tanks, the improved V-55U engine with an integral supercharger delivering 620 hp and the R-173P radio system. The BDD armour panels consist of armoured steel boxes filled with Penpolyurethane. In addition there are cavities which can be filled with water or sand for additional protection. The BDD armour panels consist of armoured steel boxes filled with Penpolyurethane and thin HHS steel plates. The BDD semi-reactive armor adding 120mm of protection against APDS and 200-250mm of protection against HEAT ammunition, thus these tanks had similar protection as early versions of T-72. There is also a cluster of 8 smoke-grenade launchers on the right-hand-side of turret. T-55AM2 is fitted with additional headlights on the front fenders.
T-55AM2 Dyna-1 - T-55AM2 fitted with new armour array.
T-55AM2B - T-55AM2 with the ability to fire the laser-guided 9M117 "Bastion" (AT-10 Stabber) ATGM via the main gun. The T-55AM2B is fitted with the 1K13 BOM gunner's sight in place of the original TPN-1M-22.
T-55AM2K1 - command tank for company commanders with an additional radio set R-173.
T-55AM2K2 - command tank for battalion commanders with an additional radio set R-173.
T-55AM2K3 - regiment commander's version with radio sets R-173 and R-143T2, a generator NS1250B and a slim 10m antenna mast. Carries 12 rounds less than a standard tank.
VT-55A (vyprošťovací tank - recovery tank) - Czechoslovak ARV built on T-55A hull and fitted with a crane with 15 tonnes capacity, a main winch with 44 tonnes capacity and a secondary winch with 800 kg capacity. It was first called MT-55 but this designation was given to the bridge laying tank and therefore the designation had to be changed.
VT-55KS (kapitalistické státy) - Export version for non-Warsaw Pact countries like Iraq and Syria. A total of 2,321 was produced between 1967 and 1983.
ZS-55A (ženijní stroj) - VT-55A fitted with dozer blade BTU-55.
MT-55A (Mostni Tank - bridge layer tank) - Czechoslovakian redesigned version of MT-55. According to some Western sources there are two models, namely the basic model - also known as MT-55K - and the MT-55L with a longer bridge. Between 1969 and 1983, 1,278 MT-55A's were built by TS Martin.
MT-55KS (kapitalistické státy) - Export version for non-Warsaw Pact countries like India, Iraq and Syria. 183 vehicles built from 1971.
PM-55L (přepravník mostu) - Lightweight version that uses a Tatra T-813 truck as carrier and launch platform.
JVBT-55A (jeřábový vyprošťovací buldozerový tank) - Czechoslovakian crane tank, fitted with a big 15t crane, a winch and a BTU-55 dozer blade. Combat weight is 42 tons. From 1967, 508 were produced.
JVBT-55KS (kapitalistické státy) - Export version of JVBT-55
T-54/T-55 operators and variants