Mercury 0.5 mm Oversize Piston Ring Set (39-835000)

Mercury 0.5 mm Oversize Piston Ring Set (39-835000)

The Mercury 0.5 mm Oversize Piston Ring Set (39-835000) is a critical internal engine part used in Mercury marine engines during engine overhauls to restore cylinder-piston fit and optimize combustion efficiency. In Mercury engines, piston rings maintain compression, prevent combustion gas escape, and contribute to stable engine operation by controlling oil levels. The 0.5 mm oversize size allows for the correct clearances to be achieved for honed or enlarged cylinders.

This piston ring set, coded 39-835000, is made of durable alloys designed to maintain their shape under high temperatures and pressures. The correct ring size and surface quality reduce compression loss, balance oil consumption, and ensure quieter engine operation. Worn or incorrectly sized rings can lead to problems such as power loss, smoke, and increased fuel consumption, making it crucial to select the correct set during the overhaul process.

Mercury Piston Ring Set Specifications

The 39-835000 Mercury 0.5 mm oversize piston ring set, with its precise dimensions, balanced sealing performance, and reliable oil control, helps the engine return to its original running characteristics. Correct installation and proper break-in increase compression, reduce friction, and extend engine life. Using genuine Mercury spare parts provides a significant advantage in terms of part compatibility and long-term engine safety.