BMP-3 IFV spearhead of Russian mechanized infantry adopts new engine upgrade.

As part of its ongoing efforts to modernize its fleet of light armored vehicles, the industrial consortium affiliated with the Russian state-owned defense corporation conducted preliminary testing on August 1, 2025, of a new generation of diesel engines developed for BMP-3 infantry fighting vehicles. This experimental powerplant, designated UTD-32T, is designed to deliver improved performance while maintaining full compatibility with existing platforms.
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The introduction of the UTD-32T engine, equipped with a turbocharger and fan-driven cooling system, aims to increase torque and power output while keeping the weight gain to a minimal 7 percent  (Picture source: Rostec)

The BMP-3, which entered service in 1990, is a tracked, amphibious infantry fighting vehicle intended to support mechanized units across various terrains, including aquatic environments, due to its swimming capabilities. Its modular design and operational versatility have made it a core asset in Russian mechanized assault doctrines, capable of engaging in frontline operations or providing close support. The vehicle accommodates a crew of three and up to seven dismounted infantry. Its main armament includes a 100 mm gun capable of firing both explosive shells and anti-tank guided missiles, a coaxial 30 mm cannon, and three 7.62 mm machine guns. The aluminum welded armor, reinforced at the front, provides protection against small arms fire and shell fragments. An integrated fire control system, night vision devices, and compatibility with active or reactive protection systems enhance its effectiveness in high-intensity engagements.

The introduction of the UTD-32T engine, equipped with a turbocharger and fan-driven cooling system, aims to increase torque and power output while keeping the weight gain to a minimal 7 percent. This upgrade addresses a key operational requirement: preserving an optimal power-to-weight ratio despite the vehicle’s increasing combat load from additional systems such as extra armor, jammers, remotely operated weapon stations, or modular payloads. In contemporary operational environments characterized by dense threat layers (mines, drones, indirect fire), tactical mobility plays a decisive role in survivability. A modernized powertrain improves the vehicle’s responsiveness, acceleration, obstacle-crossing ability, and payload capacity.

Operational experience in Syria, Ukraine, and in marshy or desert regions has highlighted the limitations of the original engine, especially in difficult terrain or extreme climates. The new UTD-32T addresses these challenges by providing increased power reserves while remaining mechanically compatible with existing chassis. This compatibility allows for retrofit upgrades without requiring the development of entirely new hulls, representing a notable logistical and financial advantage.

The start of serial production of the UTD-32T engine will enable the industrial group to supply power units not only for the modernization of in-service BMP-3s but also for future tracked vehicle designs currently in development. This effort supports the consolidation of domestic expertise in tactical engine manufacturing and strengthens industrial capacity in a critical segment.

In conclusion, testing of the UTD-32T engine reflects a broader strategy of adapting existing platforms to evolving battlefield conditions. By extending the operational lifespan of the BMP-3 while enhancing its mobility and load-bearing capacity, this upgrade seeks to maintain the platform’s relevance across multiple theaters. Tactical mobility, now increasingly determined by available engine power and the ability to carry additional systems, remains central to land combat effectiveness. With its revised propulsion system, the BMP-3 remains a flexible and capable platform suited to modern operational demands.