Multiquip 71429522500 Ring Set Piston L48V /86D - OEM Replacement Part

This piston ring set maintains proper compression and oil control in the Yanmar L48V6 diesel engine, which powers tamping rammers operating at 3,300 rpm and delivering 700 blows per minute. The L48V6 engine features 13.3 cu. in. (219cc) piston displacement in an air-cooled 4-stroke configuration, making these rings critical for maintaining the 3,600 lbs. of impact force required for effective soil compaction.

Worn or damaged piston rings result in loss of compression, excessive oil consumption, decreased engine performance, and reduced tamping effectiveness. Symptoms include difficulty starting, reduced operating speed, and irregular amplitude during operation. The engine's API Classification "CC" or "CD" Grade lubrication system depends on proper ring sealing to prevent oil contamination and maintain optimal performance in demanding compaction applications including road work, embankments, and utility backfilling.

This ring set is engineered specifically for the L48V6 diesel engine configuration used in Multiquip/Mikasa rammers. Proper installation ensures the engine maintains the governed speed of 3,300 rpm necessary for resonance-free tamping action.

Compatible with the following Multiquip tamping rammer models:

• MT-76D2
• MT-86D2

Genuine Multiquip OEM part, sold by an authorized dealer.