Parts for TMH451 — Thermador Cooktop
We found 28 parts confirmed to fit the Thermador Cooktop TMH451.
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.
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 TMH45-1: 1451337 (Terminal Block).
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 TMH45-1: 145137706 (Thermador Main Top, Porcelain, Avocado (1) **), 145137740 (Thermador Main Top, Porcelain, Golden Wheat (1) **), 1451355 (Thermador Reflector (1)), 1451344 (Element 6"), 00411208 (Lamp Control), 1429188 (Thermador Element), 142919111 (Thermador Rod), 00411399 (Rod), 1411878 (Thermador Fiberglass Sleeve 6), 141917411 (Thermador Rod), 00415311 (Cooktop Nameplate), 145131511 (Drip Bowl), W10335147A (Refrigerator FreshFlow Air Filter W10335147A), 435111 (Husqvarna Lawn Tractor Blade Clutch Cable), ADQ73214404 (LG Refrigerator Air Filter ADQ73214404).
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 TMH45-1: 1451457 (Thermador Griddle Pan), 1409886 (Thermador Knob - Infinite Control (4)), 145151903 (Thermador Cover Switch (1)), 00484595 (Cooktop Element Trim Ring, 8-in), 145131811 (Cooktop Trim Ring), 1451364 (Thermador Bracket - Pull Down (See Detail A) (2)), 141911511 (Thermador Handle), 145150811 (Thermador Hinge Assembly), 147101403 (HINGE ASSEMBLY, H FRAME (2)), 1419998 (Thermador Handle).
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 TMH45-1: 1492042 (Thermador Grommet - Light Lens (Not Illustrated) (4)), 1429443 (Thermador Pilot Light).
Before you buy
Match TMH451 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.
Neighbouring Thermador Cooktop models
These model numbers sort next to this one in the catalog and are usually the same product family.
Still not sure?
Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.