Stabilus 4B-752621

Stabilus 4B-752621 Gas Strut Overview

The Stabilus 4B-752621 gas strut is an OE-style lift support built for controlled opening and closing action on select Audi applications. With a 450 N (101 lb) force rating, 500 mm extended length, and 295 mm compressed length, it is sized for direct replacement use where consistent support and smooth motion are required.

• Brand: Stabilus
• Part number: 4B-752621
• Force rating: 450 N / 101 lb
• Extended length: 500 mm (19.685 in)
• Compressed length: 295 mm (11.614 in)
• Rod diameter: 8 mm (0.315 in)
• Tube diameter: 18 mm (0.709 in)
• Rod and tube connections: plastic socket
• Rod end attachment diameter: 10 mm (0.394 in)
• Tube end attachment diameter: 10 mm (0.394 in)

Vehicle Fitment

Compatible with 2000-2002 Audi S4 and 2000-2001 Audi A4 Quattro. It also fits 1998-1999 Audi A4 Quattro, w/o Reduced Flap Opening Angle. Search terms such as Audi A4 Quattro lift support, Audi S4 gas strut, and Stabilus 4B-752621 replacement strut match this application.

This part cross-references AMS Automotive 6526 and Focus Auto Parts 86526 for the same application.

Product Details

Use this Stabilus lift support when replacing a worn strut that no longer holds position, opens too quickly, or loses damping. The plastic socket ends and OE-style dimensions support a direct-fit replacement approach for the listed Audi models, including Audi A4 Quattro and Audi S4 applications.

Common Issues This Part Addresses

• Hatch, lid, or panel drops instead of staying open
• Slow or uneven opening and closing motion
• Weak support from a worn gas strut
• Noise or binding caused by a fatigued lift support
• Incorrect hold force from an aging replacement strut

Installation Notes and Tips

Verify the compressed length, extended length, and 10 mm end attachment diameter before installation. Compare the existing support to part number 4B-752621 and confirm the vehicle configuration, especially on 1998-1999 Audi A4 Quattro models noted without Reduced Flap Opening Angle. Inspect mounting points for wear before snapping the plastic socket ends into place.

Quality Assurance

Stabilus is a recognized OE supplier for gas springs and lift supports, and this replacement follows the dimensional and force specifications needed for the listed Audi fitments. Confirm part number 4B-752621 against the original support before ordering.