Parts for HCSW42 — Thermador
We found 17 parts confirmed to fit the Thermador HCSW42.
Compatibility table
Prices shown are an informational reference range only, not an offer or an Amazon price — RepairKitHub does not sell parts directly. Each part links to an Amazon search so you can compare current listings yourself.
Common failure areas on this model
The confirmed parts above group into a handful of failure areas. Here is what each points to and how to check it before you order anything.
General hardware and mounting parts
Symptom: A small mechanical or mounting part has failed, cracked, or gone missing.
Check: Compare the physical shape and mounting points to the original piece, and confirm the exact part number against your model plate before ordering.
Parts in this group on HCSW42: 00487444 (Control Switch (Black)), 3505005 (Thermador Filter), 3505154 (Thermador Slider (Blk) (Part Is Not Normally Stocked Because Of Lo), 3505139 (Thermador Slider (Wht) (Part Is Not Normally Stocked Because Of Lo), 3505022 (Thermador Plastic Transition), 3505136 (Thermador Fuse Holder Plate (Part Is Not Normally Stocked Because), 00415271 (Range Hood Fuse), 00369009 (Range Hood Grease Filter), 3505128 (Thermador Transformer Box (Part Is Not Normally Stocked Because Of).
Storage, trim and cosmetic hardware
Symptom: A cracked shelf, broken door bin, worn hinge, or missing trim piece -- cosmetic and storage wear rather than a functional breakdown.
Check: Match the physical dimensions and mounting tabs of the old part before ordering; these pieces are often model-specific even between visually similar models.
Parts in this group on HCSW42: 3505035 (Thermador Duct Cover, Lower, White), 3505156 (Thermador Housing Bracket, Part Of Motor Assembly), 3505067 (Thermador Duct Cover Ceiling Bracket), 3505028 (Thermador Duct Cover, Lower, White), 3505127 (Thermador Fuse Cover (Part Is Not Normally Stocked Because Of Low), 3505123 (Thermador Plug And Screw (Part Is Not Normally Stocked Because Of).
Interior lighting
Symptom: The interior light doesn't turn on when the door opens.
Check: Confirm power is reaching the socket, then check the door-activated light switch before assuming the bulb itself is at fault.
Parts in this group on HCSW42: 00415273 (Range Hood Halogen Light Assembly).
Controls, timers and wiring
Symptom: A cycle that doesn't advance, an unresponsive display, or the unit not starting at all.
Check: Look for burn marks or a burnt smell near the board or terminals, and check whether buttons and knobs respond -- a unit that powers on but won't cycle often traces back to this group.
Parts in this group on HCSW42: 3505130 (Thermador Capacitor Box (Blk)).
Before you buy
Match HCSW42 exactly against the model and serial plate on the appliance itself before ordering anything — a single mismatched character can point to a different production run with different parts. Then check the part number printed or stamped on the part you are replacing against the part numbers in the table above; the printed number is the most reliable way to confirm fitment when a model has gone through multiple production runs. RepairKitHub does not sell parts directly — every part link above routes to an Amazon search for that part number so you can compare current listings and sellers yourself.
How to confirm this is your model
Check inside a door opening, on a back or side panel, or behind a removable panel or drawer for a label printed with the model and serial number. Match every character exactly, including letters and dashes at the end — appliance model numbers often have similar prefixes but different suffixes for different production runs.
Other models with this exact parts list
Each model below is confirmed to share the identical compatible-parts list with this one.
Still not sure?
Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.