An aftertreatment system comprises a housing including a housing mounting surface and a mounting aperture defined therein. A frame has a frame first surface, a frame second surface opposite the frame first surface and defines a frame throughhole therethrough. The housing mounting surface is in contact with the frame first surface such that the frame throughhole is axially aligned with the mounting aperture. A biasing member includes a biasing member proximal end contacting the frame second surface proximate to the frame throughhole. A sleeve has a sleeve proximal end which is inserted through the frame throughhole. A sleeve distal end first surface of the sleeve is in contact with a biasing member distal end. A fastener including a fastener proximal end is inserted through the sleeve channel into the mounting aperture and removably coupled to the mounting aperture so that the biasing member is at least partially compressed.
