Duramax: LB7, LLY, LBZ, LMM, LML (2001-2016)
Features: OEM design with washers. Thread length increased to accommodate washer thickness. Two screws are 5 mm longer to accommodate the downpipe mounting bracket. Our design preserves thread engagement whereas other companies do not.
All 12 screws will be alloy steel 12-point screws in black oxide finish, class 12.9.
(10) M10 x 1.5 x 32 bolt and washer
(12) M10 washers
(2) M10 x 1.5 x 37 bolt and washer
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