Short Description: Restore your engine to factory performance with this comprehensive top-end overhaul kit. Designed for maximum durability and compression, this set is essential for anyone performing a capital repair to ensure reliability and power on the road.

Technical Specifications:

• Compatibility: Dnepr MT-11 (and compatible KM3-8.155 series)
• Manufacturer Code / SKU: MT8012-3, MT801238, MT801301
• Part Type: Engine / Crank Gear

Purpose and Role in the Motorcycle (based on the original manual):
This kit comprises the core components of the engine's combustion process. The bimetallic cylinders—featuring a cast iron sleeve within an aluminum jacket—are engineered for optimal heat dissipation and wear resistance. Inside, the pistons utilize a specialized 1.5 mm offset pin axis to ensure smooth movement and minimize impact at the upper dead center. The four-ring configuration (two compression rings for airtightness and two oil scraper rings for lubricant control) prevents "blow-by" and maintains the integrity of the combustion chamber. A failure in these components is typically signaled by excessive oil consumption (exceeding 0.25 l per 100 km), a significant drop in compression, or the presence of heavy carbon deposits that cause engine knocking. Replacing these parts restores the engine's efficiency and protects the crankshaft and connecting rods from premature wear.

Benefits of Buying:

• Exact Factory Fit: Manufactured to precise technical specifications, including the critical 0.25–0.5 mm ring gap and correct bimetallic cylinder composition.
• Enhanced Thermal Management: The aluminum-jacket design ensures efficient cooling, reducing the risk of overheating during heavy-duty sidecar operation.
• Complete Restoration: By replacing the cylinders, pistons, and rings as a matched set, you eliminate mismatched tolerances and significantly extend the service life of your engine.