Multiquip 912212102 Engine Assembly (JP) - OEM Replacement Part for Tamping Rammers

This complete engine assembly is the powerplant for the MT77HFR tamping rammer, delivering 3.6 horsepower at 3,600 rpm through a Honda GXR120RT-KRB6 air-cooled 4-stroke gasoline engine with 121cc piston displacement. The assembly provides the power needed to generate 644-695 blows per minute and 2,653-3,080 lbf of impact force for soil compaction. Engine power is transmitted through a centrifugal clutch that engages at increased engine speeds, operating at a maximum governed speed of 3,800-4,100 rpm under no load conditions.

This engine assembly features a 0.3 quart (0.28 liter) oil capacity and is designed specifically for the MT77HFR's demanding compaction applications. Common symptoms indicating engine replacement needs include failure to maintain proper operating RPM, inability to engage the centrifugal clutch causing erratic rammer jumping, or complete engine failure. The engine works in conjunction with the rammer's oil bath lubrication system and must maintain correct throttle lever positioning for optimal performance.

Compatible with the following Multiquip models:

• MT77HFR Tamping Rammer

Genuine Multiquip OEM part, sold by an authorized dealer.