Multiquip 71428421710 Crankshaft Assembly L40ADRM - OEM Replacement Part

The crankshaft assembly is the central rotating component that converts the piston's linear motion into rotational energy, driving the ramming action in Multiquip tamping rammers. This critical engine component directly affects the operating amplitude and striking force of the rammer, making it essential for proper compaction performance.

When troubleshooting rammer issues such as non-uniform amplitude or failure to strike, technicians should verify crankshaft integrity alongside clutch operation and spring condition. According to Multiquip service procedures, if the engine rotates but the rammer does not produce consistent amplitude or fails to strike properly, the crankshaft assembly may require inspection or replacement after ruling out clutch slippage, spring failure, and improper engine speed settings. This L40ADRM crankshaft assembly is precision-manufactured to OEM specifications to restore full operational performance.

Compatible with the following Multiquip rammer models:

• MT-86D
• MT76D

Genuine Multiquip OEM part, sold by an authorized dealer.