Multiquip 2682190101 Crankshaft EH12-2D - OEM Replacement Part for Tamping Rammers

The crankshaft is the primary rotating component in the Robin EH12-2D engine that converts the reciprocating motion of the piston into rotational force to drive the tamping mechanism. This genuine OEM crankshaft is engineered specifically for the 3.5 HP, 121cc air-cooled four-stroke gasoline engine that powers Multiquip tamping rammers, delivering 3,100 lbs of impact force at 640-680 impacts per minute.

The EH12-2D engine operates at 3,600 rpm maximum output and uses an oil bath lubrication system with 0.4 liter capacity. A worn or damaged crankshaft can cause excessive vibration, loss of power, unusual engine noise, or complete failure to start. Signs of crankshaft failure include knocking sounds, difficulty maintaining throttle position, reduced tamping efficiency, or inability to reach the optimal 4,000 rpm operating speed required for proper clutch engagement and foot impact rate.

This crankshaft is critical for maintaining the circular motion that creates the powerful compacting force essential for soil compaction in road construction, embankments, pipeline backfilling, and cable installation applications.

Compatible models:

• MT74FAF Tamping Rammer

Genuine Multiquip OEM part, sold by an authorized dealer.