On Thursday, January 22, 2026, the 3rd Regional Logistics Base (3. RBLog.) in Kraków published a notice announcing the launch of a tender procedure, conducted under a restricted competitive process, for services involving the overhaul of two types of diesel engines powering Soviet-designed tanks and infantry fighting vehicles.
BWP-1 / Photo: MILMAG Archive
The procurement procedure has been divided into two lots:
- Overhaul services for UTD-20 765-01Z2 W-2 diesel engines;
- Overhaul services for W-46-SU12 W-2 diesel engines.
The deadline for submitting applications to participate in the procedure is February 23, 2026, at 08:00. The sole contract award criterion will be price (100%). The contract will be valid for 190 days for the base order and up to 210 days for the optional order, counted from the date of contract signature, but in any case no later than November 27, 2026. The place of performance will be the Gałkówek Depot near Łódź, operated by the 3rd Regional Logistics Base.
Before signing the contract, the contractor will be required to hold and provide proof of civil liability insurance for business operations, including product liability coverage, with a minimum insured amount of 1.2 million PLN for the entire duration of the contract.
Analysis
The UTD-20 765-01Z2 W-2 engine is a variant of the UTD-20 powerplant used in Polish BWP-1 infantry fighting vehicles and BWR-1D/S reconnaissance vehicles. The most recent contract for overhauling these engines was signed on May 15, 2025, with the company RSY of Iława, and was valued at 4,153,600 PLN.
The UTD-20 is a six-cylinder, four-stroke, naturally aspirated diesel engine, liquid-cooled and arranged in a V configuration, with a displacement of 15,800 cm³. It produces 300 hp at 2,600 rpm. Power is transmitted to the drive wheels via a mechanically and hydraulically controlled mechanical transmission system, which enables reverse movement, braking, and steering. The gearbox is a five-speed unit (five forward gears plus reverse). Total fuel capacity is 462 liters.
The W-46-SU12 W-2 engine, in turn, is a variant of the W-46 family used to power T-72–series tanks and the PT-91 Twardy main battle tank. It is a four-stroke, V12, 12-cylinder, liquid-cooled diesel engine with direct fuel injection, a displacement of 38.88 liters, and a maximum output of 780–850 hp, depending on the variant and year of production. Maximum torque ranges from 2,800 to 3,200 Nm.
