Multiquip 2742010131 Crankshaft CP EH09 - OEM Replacement Part for Tamping Rammers

The crankshaft is the primary rotating component in the Robin EH-09 engine, converting the piston's reciprocating motion into rotational power to drive the rammer's centrifugal clutch and compaction mechanism. This genuine OEM crankshaft is engineered specifically for the air-cooled 4-stroke gasoline engine that powers the MT-54F tamping rammer, which delivers 2.4 hp at 3,600 rpm and operates at 4,000 rpm under load to produce 690 impacts per minute.

Crankshaft failure or wear can cause erratic jumping, loss of power transmission, or complete engine seizure. Common symptoms include excessive vibration, unusual knocking sounds from the crankcase, or inability to maintain the factory-set operating RPM. The MT-54F's fuel-lubrication oil spraying system lubricates the crankshaft during operation, but wear from extended use in demanding compaction applications—including road work, embankments, and pipeline backfilling—eventually necessitates replacement.

This crankshaft is precision-manufactured to OEM specifications for the 5.20 cubic inch (86cc) Robin EH-09 engine. Proper installation ensures the rammer maintains its rated 2,250 lbs. impact force per blow and prevents damage to the centrifugal clutch springs and foot assembly that can occur from improper engine operation.

Compatible with the following Multiquip rammer models:

• MT54F

Genuine Multiquip OEM part, sold by an authorized dealer.