Air Lift LoadLifter 5000 Ultimate Rear Air Spring Kit w/ Internal Jounce Bumper
Fits 2011-2019 6.6L Duramax V8 (LML) · 6.6L Duramax V8 (L5P)
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Price tracked 6 times since Jul 25, 2026 across the stores we check daily: low $459.54, high $663.95, currently $459.54.
Requires: Air Lift own site names GMC Sierra 2500 & 3500 for this SKU but does not publish Sierra-specific model years; confirm year before ordering.
where to buy · 2 retailers tracked
Rear air springs that mount alongside the factory leaf springs and add up to 5,000 lbs of load-leveling support for towing and hauling, with an internal jounce bumper and no drilling required.
why this one — The Ultimate version adds an internal jounce bumper over the base LoadLifter 5000, so the air spring doubles as the bump stop and the truck rides better unloaded. Honest downsides: the listed price moved between two checks this session so treat it as unconfirmed, and Air Lift own page names Sierra without stating Sierra-specific years, so confirm your exact year before ordering.
Load-support air spring kit, not a power-related part.
Questions about this category
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.