9M1328 Bushing, self aligning End Fits CAT D4H XL, D4H LGPOne New Aftermarket Replacement Self Aligning Equalizer Beam End Bushing for Caterpillar (Cat) Track Type Dozers This spherical self aligning bushing fits the end of the equalizer beam on Caterpillar (Cat) D series crawler dozers. Two bushings are used per machine. The spherical bearing design allows the end bushing to self align, reducing stress on the beam assembly during operation. Compatible Models Caterpillar Track Type Dozers: D4H, D4H XL, D4H