The piston is the "combustion chamber power converter" of the engine, whose core function is to withstand high pressure from combustion in the cylinder, push the crankshaft to rotate through reciprocating motion, and convert thermal energy into mechanical energy. Meanwhile, it needs to cooperate with piston rings to seal the combustion chamber, preventing high-pressure gas from leaking into the crankcase, ensuring sufficient compression pressure in the cylinder to provide a basis for efficient combustion. If the piston has issues such as top cracks or ring groove wear, it will cause gas leakage and reduced compression efficiency, with the engine showing difficulty in starting and insufficient power. Long-term operation may also accelerate wear of cylinder liners and pistons due to poor lubrication.
Cummins Piston 4944477 is designed for the combustion chamber structure and working pressure of corresponding models, using high-strength alloy materials that can withstand high-temperature and high-pressure environments. The top shape adapts to fuel injection and combustion paths, reducing carbon deposition. Its skirt adopts an optimized guide structure, fitting tightly with the cylinder liner inner wall to reduce vibration and noise during reciprocating motion. Whether in long-distance driving of heavy trucks or intermittent operations of engineering equipment, it can stably transmit power and ensure continuous and efficient operation of the engine.
Ningbo Qiuning Trading Co., Ltd., as the supplier of this piston, provides two product options: original and auxiliary to meet different maintenance needs of users. Original products strictly match original standards in material strength and dimensional accuracy, while auxiliary products offer more flexibility in cost. Users can choose suitable products according to equipment usage intensity and maintenance budget.
If you want to know the specific applicable models, common fault judgment or replacement precautions of this piston, please feel free to consult. Contact information: WeChat/WhatsApp: +8615888032469; E-mail: allen@perkins-rx.com.
KTA19-G3，KTA19-G4，VTA28-G5，VTA28-G6，KTA38-G5，KTA38-G9，KTA50-G3，KTA50-G8，QSK60-G3，QSK60-G4
4B3.9-G1,4BT3.9-G1,4BTA3.9-G2,6BT5.9-G1,6BTA5.9-G2,6CTA8.3-G2,6CTA8.3-G3,6LTAA8.9-G2
NT855-GA，NTA855-G1A，MTAA11-G3，NTA855-G2A，NTAA855-G7A，KTA19-G3，KTA19-G4，KTAA19-G5，KTAA19-G6A，KTA38-G2，KTA38-G2A，KTA38-G5，KTA38-G9，KTA50-G3,KTA50-G8,KTA50-GS8,KTA50-G9,KTA50-G15
46KVA 4BTA3.9-G1-60Hz
