Nilight Fog Lights Assembly (2003-2006, 2007 Classic), Pair
Fits 2003-2007 (2007 Classic body) 6.6L Duramax V8 (LB7) · 6.6L Duramax V8 (LLY) · 6.6L Duramax V8 (LBZ)
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Price tracked 8 times since Aug 16, 2026 at the stores we check daily, not eBay: low $49.99, high $59.99, currently $49.99.
where to buy · 3 retailers tracked
A pair of replacement fog lights for the older GMT800-body Sierra 2500HD/3500HD, covering the 2003-2006 model years plus the 2007 "Classic" trucks that kept the old body style alongside that year's redesign.
why this one — At $49.99 it is the only fog light we found sourced specifically for this older HD generation. One catch: Nilight's own compatibility list starts at 2003, so 2001-2002 trucks (the first LB7 diesel model years) are not confirmed to fit, and it explicitly does not fit Denali or C3 trims.
Compliance/DOT status not stated on manufacturer page - verify before representing as street legal.
No published gain figure for this part, and nothing here is a guarantee. Price is a list price and can lag the retailer; confirm at checkout. See how we check a price and our affiliate disclosure.