Description
An aFe Front & Rear Diff GUARD Differential Cover Package With Oil for the 2011-2012 GM 6.6L Duramax. A cast aluminum cover with cooling fins and added fluid capacity.
Fits: 2011-2012 GM 6.6L Duramax; 2011-2016 GM 6.6L Duramax LML; 2017-2019 GM 6.6L Duramax L5P