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Replace Sub-Zero Model 642 with Classic Series Model BI-42S or BI-42SID


  • Are the opening size and electrical requirements the same for model 642 and Classic Series (BI) model BI-42S or BI-42SID?
  • Are the water location and panels the same for model 642 and model BI-42S or BI-42SID?
  • Do panels transfer from an old unit to a new unit?
  • Can old panels go on a new unit?
  • 642 compatibility




Opening SizeElectrical RequirementsWater RequirementsItems to Verify
  • No change.
  • No change.
  • No change.
  • Whether the original unit had a reduced height grille (to reduce overall unit height to 83") or an extended grille (to increase overall height above 84"). If so, order a new reduced height or extended height grille for the new model. See Classic Series Grille Height Options.
  • Whether the new model door clearance fits if installed near an island. See the Sub-Zero Design Guide for details.


  • The panels from model 642 will fit model BI-42S or BI-42SID with the purchase of a retrofit kit.
  • Side panels cannot be reused.

BI-42S or BI-42SID Sales Accessories

Accessory Framed Overlay
Retrofit Kit


See also, Classic Framed Retrofit Kits.


See also, Classic Series Overlay Retrofit Kits.

Grille 7014851 (louvered if desired)

Reduce overlay grille panel height by 1" if reusing the grille panel from model 642.


7014890 (full-length standard set)

7003465 (full-length extended set)

Reuse existing handles or mount any custom handles to the door/drawer panels.

See also:

Refer to the Sub-Zero Design Guide for design specifications and the product Installation Guide for further installation information.


Need further assistance? Contact Customer Care at 800.222.7820 or provide your information below and request a Customer Care representative contact you.

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