Multiquip 1612340101 Piston EC12D - OEM Replacement Part

This piston assembly is a critical engine component for the Robin EC12-G two-stroke gasoline engine that powers Multiquip MT-series tamping rammers. The EC12-G engine features 6.96 cubic inch (114cc) piston displacement and delivers 4.5 horsepower at 4,000 rpm, providing the power necessary to generate 2,865 lbs of impact force per blow at 690 blows per minute. Regular inspection and replacement of worn pistons is essential to maintain proper compression, engine performance, and the rammer's designed operating speed of 4,000 rpm.

Common symptoms indicating piston replacement may be needed include loss of compression, difficulty starting, reduced power output, excessive smoke, or inability to maintain proper operating speed. The two-stroke design of the EC12-G engine means the piston plays a direct role in both compression and exhaust port timing, making its condition critical for optimal rammer performance.

This piston is compatible with the following Multiquip tamping rammer models:

• MT-75H
• MT-85H
• MT75HS
• MT85HS

Genuine Multiquip OEM part, sold by an authorized dealer.