Stabilus 4B-1504BO Deck Lid Lift Support

Stabilus 4B-1504BO Gas Spring for BMW E30 Applications

The Stabilus 4B-1504BO is a gas spring built for specific BMW E30 and Cabrio applications that require controlled lift and support. With a 150 N force rating and OE-style metal blade connections, it matches the dimensions needed for proper fitment on listed BMW 325i, 318i, 325is, 325iX, M3, 325e, and 325es models.

Key Features

• Part number: 4B-1504BO
• Force rating: 150 N / 34 lb
• Extended length: 500 mm (19.685 in)
• Compressed length: 295.5 mm (11.634 in)
• Rod diameter: 8 mm (0.315 in)
• Tube diameter: 18 mm (0.709 in)
• Rod and tube connections: metal blade
• Rod end and tube end attachment diameter: 8.3 mm (0.327 in)
• Direct-fit dimensions for listed BMW trunk, hatch, or lift support applications

Detailed Description

Stabilus 4B-1504BO is an OE-style gas strut engineered around the specified length, force, and attachment geometry needed for select BMW applications. The 500 mm extended length, 295.5 mm compressed length, and 150 N output help maintain consistent support and controlled movement where the original lift support has weakened. This part cross-references URO 51248103118 for the same application. Fits 1984-1985 BMW 318i, Cabrio (2pc application); Fits 1984-1987 BMW 325e, Cabrio (2pc application); Fits 1986-1987 BMW 325es, Cabrio (2pc application); Fits 1987-1993 BMW 325i, Cabrio (2pc application); Fits 1987 BMW 325is, Cabrio (2pc application); Fits 1988-1991 BMW 325iX, Cabrio (2pc application); Fits 1988-1991 BMW M3, Cabrio (2pc application); Fits 1988-1990 BMW 325is, E30 Chassis; Fits 1991-1992 BMW 318i, E30 Chassis; Fits 1991 BMW 318is, E30 Chassis; Fits 1991 BMW 325is, Cabrio (2pc application).

What It Helps Fix

• Weak or failing lift support that no longer holds position
• Hatch, trunk, or panel drop after opening
• Uneven or inconsistent opening effort
• Noise or binding caused by worn gas spring hardware interfaces
• Loss of controlled motion in BMW E30 Cabrio and related applications

Installation Notes and Tips

Verify the compressed length, extended length, force rating, and metal blade attachment style before installation. Compare the rod and tube end diameters to the original support to confirm proper seating on the vehicle. Replace only with the correct application-specific gas spring for the listed BMW models and chassis notes.

Quality Assurance

Stabilus is a recognized OE supplier for gas springs and lift supports, and this part follows the dimensional and force specifications required for the listed BMW applications.