An assembly for an excavator includes a bucket having coupling flanges spaced apart from each other. The coupling flanges extend upwardly from a top wall of the bucket and laterally between side plates of the bucket. Each coupling flange has an aperture. The assembly also includes a linkage assembly coupled to the bucket and configured to tilt the bucket relative to an arm of the excavator. The linkage assembly includes: a top mount configured to be fixedly releasably coupled to the arm of the excavator; a shaft fixedly coupled to the top mount and received in each of the apertures such that the bucket is pivotally coupled to the shaft; a drive lug coupled to and depending from the shaft between the coupling flanges; and a linear actuator coupled to the bucket and the drive lug to pivot the bucket about the shaft.