Engine Liner Sleeve for T-80UD
Wet-type cylinder liner designed for 6TD-series opposed-piston diesel engines used in the T-80UD main battle tank.
Key Features:
✔️ Compatible with 6TD-1 and 6TD-2 opposed-piston diesel engines
✔️ Wet-type cylinder liner with direct coolant contact for efficient heat transfer
✔️ Designed for horizontally opposed, two-stroke engine architecture
✔️ Incorporates intake and exhaust ports for two-stroke operation
✔️ Maintains cylinder bore stability under high thermal loads
✔️ Supports consistent compression and reduced bore wear
✔️ Manufactured to match original 6TD-series engine dimensions
✔️ Suitable for standard overhaul and engine rebuild procedures
✔️ Compatible with 5TDF-derived engine maintenance practices
✔️ Used in depot-level maintenance and scheduled fleet overhauls
Engine Liner Sleeve for T-80UD
The Engine Liner Sleeve for T-80UD is a wet-type cylinder liner. It fits the 6TD-1 and 6TD-2 diesel engines that power the T-80UD main battle tank. The engine uses a horizontally-opposed, two-stroke, opposed-piston layout. Two pistons travel toward each other inside a single bore. The liner houses the intake and exhaust ports for this two-stroke cycle. This port design sets it apart from liners in standard four-stroke diesel engines. Coolant contacts the sleeve’s outer surface directly. This forms part of the coolant jacket instead of relying on the block metal alone for cooling.
This direct coolant contact handles the heat load from two-stroke combustion. Two-stroke engines fire twice as often per revolution as four-stroke engines do. The sleeve keeps the cylinder bore stable across repeated piston strokes. It supports steady compression and limits uneven wear along the bore wall. The sleeve matches the internal dimensions of the 6TD-series block. Technicians install it using standard rebuild procedures for opposed-piston engines. These procedures apply across 6TD and related 5TDF-derived powerplants.
Maintenance crews install the Engine Liner Sleeve for T-80UD during scheduled engine overhauls. Tanks with extended operating hours in harsh terrain need this work most often. Armored corps workshops use this component during T-80UD fleet maintenance. Depot-level units in army logistics commands also stock it for rebuild cycles. The sleeve fits both 6TD-1 and 6TD-2 variants. This means one part number covers multiple production batches of the tank.
Reliable engine parts for legacy Soviet-designed platforms can be hard to find. Original supply chains for these components often slow down or change over time. Tactical Supply Pakistan keeps parts like this in stock for maintenance teams. This helps fleet readiness continue without delays over a single missing component.
Does this liner sleeve require modification to fit both 6TD-1 and 6TD-2 engines, or is it a direct fit for both?
The sleeve shares the same bore dimensions across both 6TD-1 and 6TD-2 blocks. It installs as a direct fit for either engine variant during a standard rebuild.
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