The top 5 exterior brands enthusiasts actually trust for the New HD Frame — LML Duramax (2011-2016) GMC Sierra 2500HD/3500HD (Duramax) — ranked by community reputation and fitment reliability.
2011-2016 GMC Sierra 2500HD/3500HD (Duramax) · Exterior
InstantFetched 3d ago · Refreshes in 57d
Ranch Hand
Heavy-duty bumper fitment, durability for work trucks.
Sold direct through Ranch Hand and authorized dealers.
Bushwacker
Fender flares fit reliably, proven longevity in field.
Widely available through major performance and truck retailers.
Go Industries
Grille guards engineered for Duramax platform fitment.
Widely available through major performance and truck retailers.
Westin
Running boards, nerf bars trusted for truck duty.
Widely available through major performance and truck retailers.
Lund
Tonneau covers, bed accessories popular with diesel owners.
Widely available through major performance and truck retailers.
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