Description
Challenger 6498k377-2.0 Air Lock Release Cylinder – Challenger 44030 4-Post Hoist
Replace the air lock release cylinder when the actuator fails to pull the locking mechanism open, leaks air, or the cylinder shaft is bent or seized. This cylinder pulls the safety locks open simultaneously on large 40-series Challenger, Magnum, and Mac Tool 4-post chain hoists. This listing is for the air actuator only – most of the time the existing fitting and end yoke can be reused. If you need the fitting, clevis end, or pin, they are sold separately.
Product Information
- Brand / Equipment: Challenger / Magnum / Mac Tool 4-Post Chain Hoist
- Manufacturer / Reference Part Number: 6498k377-2.0
- Store SKU: CHR77-2.0
- Component: Air Lock Release Cylinder (Actuator)
- Listed Application: Challenger 44030, 44030E, 44030X; also found on 4-post whip chain hoists 25-30k capacity
Fitment & Ordering Notes
Confirm your lift model and verify the part number against your lift serial tag or parts manual before ordering. Some sources list a related part as reference 6498K337-2.00 – verify the correct number for your specific lift. Contact us at 866-902-6060 for fitment assistance.



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