The Blum AVENTOS HL 21L3900.01 SERVO-DRIVE lever arm set is designed for original-generation AVENTOS HL parallel-lift installations with cabinet heights from 450 to 580 mm. It guides a single-piece front upwards while keeping it parallel to the cabinet, helping provide clear access to the cabinet interior.

This is a component set for a correctly specified SERVO-DRIVE installation; it does not create powered opening on its own. Compatible lift mechanisms, electrical SERVO-DRIVE parts, front fixings, covers and stabiliser components must be selected separately for the cabinet and front.

Pack contents

• 1 x left SERVO-DRIVE lever arm
• 1 x right lever arm
• 2 x oval cross-stabiliser cover caps

Lift mechanism selection

For a cabinet height of 450–580 mm, select the lift mechanisms using the total front weight, including the handle. The matching original AVENTOS HL ranges are:

Where weight ranges overlap, Blum recommends the more powerful lift mechanism. Confirm cabinet height, front weight and the complete component list before ordering.

Compatibility and ordering notes

• For original AVENTOS HL SERVO-DRIVE systems with 450–580 mm cabinet height
• Suitable for correctly configured cabinets up to 1800 mm wide
• Use the separate 20Q1061UA oval cross-stabiliser rod, cut to the required size
• For internal cabinet widths of 1190 mm and above, use the separate 20Q153ZA connecting set
• Not the standard 20L3900.06 lever arm set and not compatible with AVENTOS HL top 22L/22Q as a direct substitute

Product details

• Brand: Blum
• Range: Original AVENTOS HL SERVO-DRIVE
• Movement: Parallel lift for a single-piece front
• Cabinet-height application: 450–580 mm
• Manufacturer part number: 21L3900.01
• Blum article ID: 06781239
• Hart SKU: HI21L3900
• Barcode: 9002617868654
• Complete kit: No — additional AVENTOS HL and SERVO-DRIVE components are required

Browse the Blum AVENTOS lift systems and components or use the Blum Product Configurator below to check the full installation specification.