Multiquip 71429522720 Piston with Rings - OEM Replacement Part for Diesel Rammer Engines

This piston and ring assembly is a critical engine component for Yanmar L48V6 diesel engines used in Multiquip tamping rammers. The piston converts combustion pressure into mechanical force, while the rings maintain compression, control oil consumption, and transfer heat to the cylinder wall. In the L48V6 engine (13.3 cu. in./219 cc displacement), the piston operates at speeds up to 3,300 rpm under demanding compaction conditions.

Replace this component when troubleshooting engine performance issues such as loss of power, excessive oil consumption, hard starting, or reduced compression. The L48V6 uses API Classification "CC" or "CD" grade diesel engine oil for lubrication. Symptoms of piston or ring wear include blue exhaust smoke, increased crankcase pressure, and difficulty maintaining operating speed. These diesel rammers deliver 700 blows per minute with 3,600 lbs. of impact force, placing significant demands on engine components.

Compatible with the following Multiquip tamping rammer models:

• MT-76D2
• MT-86D2

Genuine Multiquip OEM part, sold by an authorized dealer.