ZVM-39081 SIVER 4×4
ZVM-39081 SIVER 4×4 is a heavy off-road vehicle based on the GAZ Sadko NEXT chassis, designed to transport people, equipment, and cargo over difficult terrain. At its core are an all-wheel-drive chassis, portal axles with in-house-designed wheel reduction gears, high ground clearance, and large-diameter wheels.
In 2026, the model received an updated all-metal body with increased interior volume and improved ergonomics. SIVER is offered in cargo, cargo-passenger, and passenger versions, allowing the vehicle to be adapted to various industrial and expedition tasks.
1. Portal Axles — The Foundation of Mobility
The main design feature of SIVER is its portal axles with in-house-designed wheel reduction gears. This arrangement allows the axle housing to be positioned higher relative to the wheel axis, increasing ground clearance.
A ground clearance of 650 mm helps overcome deep ruts, terrain irregularities, snow drifts, and other obstacles typical of off-road conditions. The wheel reduction gears also provide additional torque reduction transmitted to the wheels, which is important when driving a heavy vehicle under load.
2. Wheels for Difficult Terrain
Depending on the configuration, SIVER is equipped with tyres of various sizes: 1400×540, 1700×750 mm.
Large-diameter wheels and a well-developed tread pattern help the vehicle maintain traction with the ground and overcome sections with difficult terrain. The specific version is selected according to operating conditions and assigned tasks.
3. Reinforced Design Based on GAZ Sadko NEXT
At the heart of the vehicle is the GAZ Sadko NEXT chassis, adapted for operation outside public roads. The all-wheel-drive 4×4 layout, combined with portal axles and high ground clearance, allows the vehicle to be used on routes inaccessible to conventional cargo transport.
The design is intended for transporting the crew, equipment, and industrial cargo. The vehicle's gross weight, depending on the version, is 7,000–7,200 kg.
4. YaMZ Diesel Engine
SIVER is equipped with a YaMZ-53443 diesel engine with a power output of 150 hp and a maximum torque of 490 N·m.
The power unit provides the traction needed to move a heavy vehicle under load over cross-country terrain. The diesel engine is suitable for prolonged operation as part of industrial and expedition teams.
5. Updated All-Metal Body
The 2026 version features a welded all-metal insulated body with increased interior volume. Its design is adapted to the SIVER chassis and allows more convenient accommodation of the crew, equipment, and the necessary working gear.
Three-door and five-door versions are available. Large door openings make it easier to get in and out, and the updated cabin layout makes the vehicle more comfortable on long trips and during daily operation.
Depending on the configuration, the vehicle may be equipped with sound and thermal insulation, an autonomous heater, climate control equipment, anatomical seats, a multimedia system, a rear-view camera, LED lighting, USB ports, and 12/24 V power outlets.
6. Three Layout Options
Cargo
Two-seat cabin and a cargo platform for transporting equipment and materials.
Cargo-Passenger
Five-seat version for delivering a work crew and the necessary equipment.
Passenger
All-metal body with a capacity of up to 10 people, including the driver.
This choice allows a single platform to be used for various tasks: from delivering specialists to remote facilities to transporting equipment and organizing a mobile work site.
7. Equipment for Operating Conditions
The SIVER configuration may include an electric winch, a central tyre inflation system, an autonomous heater, a searchlight, a roof rack, protective structural elements, a snorkel, and GLONASS/GPS satellite navigation.
For operation in cold climates, engine preheating and fuel system heating solutions are available.
The equipment composition is selected according to routes, climate, the nature of the cargo transported, and the vehicle's operating schedule.
8. For Work Where There Are No Ordinary Roads
ZVM-39081 SIVER 4×4 is suitable for tasks requiring the delivery of people, equipment, and cargo to hard-to-reach areas:
Geological Exploration and Field Research
Transportation of research teams across hard-to-reach territories.
Oil, Gas, and Energy Facilities
Servicing remote infrastructure outside the road network.
Remote Production Sites
Delivery of personnel and equipment to facilities far from roads.
Emergency, Rescue, and Special Operations
Access to areas cut off from conventional transport.
Expeditions and Environmental Activities
Transportation of people and gear along routes without infrastructure.
Mobile Workshops and Communication Points
Organizing work sites directly on location.
High ground clearance, portal axles, and a cargo-capable base make SIVER a working tool for enterprises that need to deliver people and equipment beyond the developed road network.
9. Technical Specifications
| Model | ZVM-39081 SIVER |
| Wheel configuration | 4×4 |
| Base chassis | GAZ Sadko NEXT |
| Engine | YaMZ-53443, diesel |
| Maximum power | 150 hp |
| Maximum torque | 490 N·m |
| Number of seats including driver | 2, 5, 10 |
| Axle type | Portal, with wheel reduction gears |
| Tyre size, mm | 1400×540, 1700×750 |
| Ground clearance | 650 mm |
| Weight of transported cargo, driver, and passengers | 2,000 / 1,850 / 1,500 kg |
| Gross weight | 7,000 / 7,000 / 7,200 kg |
| Length | 6,460 / 6,460 / 6,550 mm |
| Width | 2,730 mm |
| Height | 3,100 mm |
| Front track | 2,150 mm |
| Rear track | 2,120 mm |
| Wheelbase | 3,770 mm |
| Maximum speed | 70 km/h |
| Gradability at full load | 35° |
| Permissible lateral roll without cargo | 20° |
| Fording depth | 1.5 m |
| Minimum turning radius | 11.5 m |
The weight of transported cargo in the table is indicated together with the driver and passengers. The actual payload depends on the version and the number of people on board.
Did You Know?
Why does a heavy off-road vehicle need portal axles?
In a conventional axle, the final drive housing is located relatively close to the wheel axis. In a portal design, wheel reduction gears are used, which allow the axle housing to be positioned higher relative to the wheel center.
This increases ground clearance without the need to fit extremely large-diameter wheels. The additional reduction in the wheel gears helps transmit traction to the wheels when driving under load.
For heavy off-road machinery, this design is especially important: it helps combine high clearance, traction capabilities, and the ability to transport people and equipment over difficult terrain.
Configure SIVER for Your Tasks
Cargo platform, cargo-passenger layout, or a spacious all-metal body — choose the version and equipment for your operating conditions.
Contact ZVM specialists to select the ZVM-39081 SIVER 4×4 configuration for your routes and production tasks.
国际合作伙伴联系方式
俄罗斯全地形车辆制造厂（ZVM）欢迎与海外企业、经销商及最终客户开展合作。
电话：+7 920 058-28-40
电子邮箱：sales@zvm-nn.ru
微信（WeChat）：wxid_dhdqihdmcn5w22
Photo and Video
ZVM-39081 SIVER 4×4
ZVM-39081 SIVER 4×4 is a heavy off-road vehicle based on the GAZ Sadko NEXT chassis, designed to transport people, equipment, and cargo over difficult terrain. At its core are an all-wheel-drive chassis, portal axles with in-house-designed wheel reduction gears, high ground clearance, and large-diameter wheels.
In 2026, the model received an updated all-metal body with increased interior volume and improved ergonomics. SIVER is offered in cargo, cargo-passenger, and passenger versions, allowing the vehicle to be adapted to various industrial and expedition tasks.
1. Portal Axles — The Foundation of Mobility
The main design feature of SIVER is its portal axles with in-house-designed wheel reduction gears. This arrangement allows the axle housing to be positioned higher relative to the wheel axis, increasing ground clearance.
A ground clearance of 650 mm helps overcome deep ruts, terrain irregularities, snow drifts, and other obstacles typical of off-road conditions. The wheel reduction gears also provide additional torque reduction transmitted to the wheels, which is important when driving a heavy vehicle under load.
2. Wheels for Difficult Terrain
Depending on the configuration, SIVER is equipped with tyres of various sizes: 1400×540, 1700×750 mm.
Large-diameter wheels and a well-developed tread pattern help the vehicle maintain traction with the ground and overcome sections with difficult terrain. The specific version is selected according to operating conditions and assigned tasks.
3. Reinforced Design Based on GAZ Sadko NEXT
At the heart of the vehicle is the GAZ Sadko NEXT chassis, adapted for operation outside public roads. The all-wheel-drive 4×4 layout, combined with portal axles and high ground clearance, allows the vehicle to be used on routes inaccessible to conventional cargo transport.
The design is intended for transporting the crew, equipment, and industrial cargo. The vehicle's gross weight, depending on the version, is 7,000–7,200 kg.
4. YaMZ Diesel Engine
SIVER is equipped with a YaMZ-53443 diesel engine with a power output of 150 hp and a maximum torque of 490 N·m.
The power unit provides the traction needed to move a heavy vehicle under load over cross-country terrain. The diesel engine is suitable for prolonged operation as part of industrial and expedition teams.
5. Updated All-Metal Body
The 2026 version features a welded all-metal insulated body with increased interior volume. Its design is adapted to the SIVER chassis and allows more convenient accommodation of the crew, equipment, and the necessary working gear.
Three-door and five-door versions are available. Large door openings make it easier to get in and out, and the updated cabin layout makes the vehicle more comfortable on long trips and during daily operation.
Depending on the configuration, the vehicle may be equipped with sound and thermal insulation, an autonomous heater, climate control equipment, anatomical seats, a multimedia system, a rear-view camera, LED lighting, USB ports, and 12/24 V power outlets.
6. Three Layout Options
Cargo
Two-seat cabin and a cargo platform for transporting equipment and materials.
Cargo-Passenger
Five-seat version for delivering a work crew and the necessary equipment.
Passenger
All-metal body with a capacity of up to 10 people, including the driver.
This choice allows a single platform to be used for various tasks: from delivering specialists to remote facilities to transporting equipment and organizing a mobile work site.
7. Equipment for Operating Conditions
The SIVER configuration may include an electric winch, a central tyre inflation system, an autonomous heater, a searchlight, a roof rack, protective structural elements, a snorkel, and GLONASS/GPS satellite navigation.
For operation in cold climates, engine preheating and fuel system heating solutions are available.
The equipment composition is selected according to routes, climate, the nature of the cargo transported, and the vehicle's operating schedule.
8. For Work Where There Are No Ordinary Roads
ZVM-39081 SIVER 4×4 is suitable for tasks requiring the delivery of people, equipment, and cargo to hard-to-reach areas:
Geological Exploration and Field Research
Transportation of research teams across hard-to-reach territories.
Oil, Gas, and Energy Facilities
Servicing remote infrastructure outside the road network.
Remote Production Sites
Delivery of personnel and equipment to facilities far from roads.
Emergency, Rescue, and Special Operations
Access to areas cut off from conventional transport.
Expeditions and Environmental Activities
Transportation of people and gear along routes without infrastructure.
Mobile Workshops and Communication Points
Organizing work sites directly on location.
High ground clearance, portal axles, and a cargo-capable base make SIVER a working tool for enterprises that need to deliver people and equipment beyond the developed road network.
9. Technical Specifications
| Model | ZVM-39081 SIVER |
| Wheel configuration | 4×4 |
| Base chassis | GAZ Sadko NEXT |
| Engine | YaMZ-53443, diesel |
| Maximum power | 150 hp |
| Maximum torque | 490 N·m |
| Number of seats including driver | 2, 5, 10 |
| Axle type | Portal, with wheel reduction gears |
| Tyre size, mm | 1400×540, 1700×750 |
| Ground clearance | 650 mm |
| Weight of transported cargo, driver, and passengers | 2,000 / 1,850 / 1,500 kg |
| Gross weight | 7,000 / 7,000 / 7,200 kg |
| Length | 6,460 / 6,460 / 6,550 mm |
| Width | 2,730 mm |
| Height | 3,100 mm |
| Front track | 2,150 mm |
| Rear track | 2,120 mm |
| Wheelbase | 3,770 mm |
| Maximum speed | 70 km/h |
| Gradability at full load | 35° |
| Permissible lateral roll without cargo | 20° |
| Fording depth | 1.5 m |
| Minimum turning radius | 11.5 m |
The weight of transported cargo in the table is indicated together with the driver and passengers. The actual payload depends on the version and the number of people on board.
Did You Know?
Why does a heavy off-road vehicle need portal axles?
In a conventional axle, the final drive housing is located relatively close to the wheel axis. In a portal design, wheel reduction gears are used, which allow the axle housing to be positioned higher relative to the wheel center.
This increases ground clearance without the need to fit extremely large-diameter wheels. The additional reduction in the wheel gears helps transmit traction to the wheels when driving under load.
For heavy off-road machinery, this design is especially important: it helps combine high clearance, traction capabilities, and the ability to transport people and equipment over difficult terrain.
Configure SIVER for Your Tasks
Cargo platform, cargo-passenger layout, or a spacious all-metal body — choose the version and equipment for your operating conditions.
Contact ZVM specialists to select the ZVM-39081 SIVER 4×4 configuration for your routes and production tasks.
国际合作伙伴联系方式
俄罗斯全地形车辆制造厂（ZVM）欢迎与海外企业、经销商及最终客户开展合作。
电话：+7 920 058-28-40
电子邮箱：sales@zvm-nn.ru
微信（WeChat）：wxid_dhdqihdmcn5w22
Specifications
| Modifications | ZVM-39081G | ZVM-39081GP | ZVM-39081 |
|---|---|---|---|
| Base chassis | GAZ Sadko NEXT | ||
| Engines | |||
| model | YaMZ-53443 | ||
| type | diesel | ||
| max power, kW (hp) | 110 (150) | ||
| max torque, N·m | 490 | ||
| Number of seats in the cabin, including driver | 2 | 5 | 10 |
| Tyre model | agricultural Voltyre Agro 21.3 R24 (1400×540) | ||
| Weight of transported cargo, driver and passengers, kg | 2,000 | 1,850 | 1,500 |
| Maximum permissible gross weight, kg | 7,000 | 7,000 | 7,200 |
| Overall dimensions, mm | |||
| length | 6,460 | 6,460 | 6,550 |
| width | 2,730 | ||
| height | 3,100 | ||
| Track, mm | |||
| front wheels | 2,150 | ||
| rear wheels | 2,120 | ||
| Wheelbase, mm | 3,770 | ||
| Ground clearance, mm | 650 | ||
| Maximum speed, km/h | 70 | ||
| Obstacles negotiated on firm ground | |||
| gradient (fully loaded), deg | 35 | ||
| side slope (unloaded), deg | 20 | ||
| fording depth, m | 1.5 | ||
| Minimum turning radius (outer front wheel track), m |
11.5 | ||
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