The SEAFLO Manual Powered Stabilizing Jack (Set of 2) gives you reliable, hands-on control to level and stabilize your RV or trailer. Each leg operates independently, letting you make precise adjustments on uneven surfaces. The included hex crank handle allows smooth and effortless lifting. Built with corrosion-resistant steel, these jacks withstand harsh outdoor conditions and provide steady support wherever you park.
Features:
• Manual crank operation for full control
• Independent leg adjustment for precision leveling
• Supports up to 4,000 lbs safely
• Extends from 4” to 25” for versatile setups
• Corrosion-resistant finish for long-term durability
• Heavy-duty steel construction
Specs:
• Load Capacity: 4,000 lbs
• Height Range: 4”–25”
• Operation: Manual crank (hex handle included)
• Material: Corrosion-resistant steel
• Included Components: 2 jacks + hex crank handle
Before You Order
Verify part number SFSJM-4000-600-01 exactly Match the listed product details to the part you are replacing before ordering. Compare dimensions, specifications and fitment information with your RV or component.
Frequently Asked Questions
What part number should I verify before ordering?
Verify SFSJM-4000-600-01 on your existing part, documentation or equipment label before ordering.
How should I confirm this part fits?
Compare the listed part number, dimensions, specifications and fitment details with your existing component. Do not rely on appearance alone.

