Short Description: Restore your engine's compression and smooth power delivery with this high-precision replacement piston. Engineered for maximum durability, it is essential for reviving the performance and reliability of your Dnepr MT-11.

Technical Specifications:

• Compatibility: Dnepr MT-11 (and compatible KM3 series models)
• Manufacturer Code / SKU: KM3-8.15501237-P1
• Part Type: Engine / Crank Gear

Purpose and Role in the Motorcycle (based on the original manual):
The piston is a central component of the Dnepr MT-11's 649cc double-cylinder engine, responsible for converting the energy of the expanding combustion gases into mechanical work. This specific piston consists of a crown, skirt, and bosses, featuring four precision-machined grooves: two upper grooves for compression rings to ensure airtightness and two lower grooves for oil scraper rings to prevent excessive oil consumption. A critical engineering feature of this part is the 1.5 mm displacement of the piston pin hole axis from the longitudinal center plane; this offset reduces mechanical impact and ensures the piston moves smoothly within the cylinder at the Upper Dead Centre (TDC). Signs that it is time to replace this part include an increase in oil consumption (exceeding 0.25 l per 100 km), a significant loss of engine power, or the engine "missing" due to a worn-out cylinder-piston group.

Benefits of Buying:

• Exact OEM Specifications: Manufactured to match the strict technical requirements of the MT-11, including the critical 1.5 mm pin offset for reduced engine wear.
• Optimized Combustion Efficiency: Precision-machined ring grooves ensure a perfect seal for compression rings, maximizing horsepower and fuel efficiency.
• Enhanced Engine Longevity: Using a high-quality replacement piston reduces vibration and prevents premature wear on the cylinder walls and connecting rod bushings.