Multiquip 71429522580 Piston with Ring OS=0.5 L48V/86D - OEM Replacement Part

This oversized piston and ring assembly is a precision-engineered replacement component for the Yanmar L48V6 diesel engine used in Multiquip tamping rammers. Designed with a 0.5mm oversize specification, this piston is used during engine rebuilds when cylinder bore wear exceeds standard tolerances, restoring proper compression and engine performance.

The Yanmar L48V6 engine in the MT-76D2 and MT-86D2 rammers is an air-cooled 4-stroke diesel with 13.3 cubic inch (219cc) displacement, operating at a maximum governed speed of 3,300 RPM. This piston assembly maintains the engine's 3,600 lbs. impact force per blow at 700 blows per minute. Common symptoms indicating piston replacement include loss of compression, excessive blow-by, decreased engine power, difficulty starting, or increased oil consumption. The oversized design compensates for cylinder wear, allowing proper piston-to-cylinder wall clearance to be restored during professional engine rebuilds.

Compatible with the following Multiquip tamping rammer models:

• MT-76D2
• MT-86D2

Genuine Multiquip OEM part, sold by an authorized dealer.