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 8 times since Jul 26, 2026: low $459.54, high $663.95, currently $459.54.
where to buy · 2 retailers tracked
Rear air springs (bags) that install alongside the factory leaf springs to add up to 5,000 lbs of load-leveling support for towing/hauling, with an internal jounce bumper for stability, and no-drill installation.
why this one — Specifically the "Ultimate" trim of Air Lifts LoadLifter 5000 line (adds the internal jounce bumper over the base LoadLifter 5000), sourced with a real 2011-2019 2500HD/3500HD 2WD/4WD fitment confirmation rather than assumed from the base product line.
Load-support air spring kit, not a power-related part.
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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 our affiliate disclosure.