Parts for 55HDT51M — Hitachi

We found 11 parts confirmed to fit the Hitachi 55HDT51M.

Compatibility table

All 11 confirmed parts, ordered so parts that fit fewer models (more specific to this appliance) appear first.
Part #PartAlso fitsReference price
QD37801Frame AssemblyThis model only— · Amazon
KS07221KFrnt FiltrThis model only$794.76 · Amazon
NA71911Bracket Front3 models— · Amazon
CH01042MDiode3 models$3.10 · Amazon
ME03381PCB Cover3 models$4.43 · Amazon
NA71931PCB FIX METAL3 models— · Amazon
FN00141Fuse5 models$7.04 · Amazon
HP00773Switch Box5 models$48.43 · Amazon
QJ01092Avc3 Foot10 models$8.26 · Amazon
CH00051Record Bridge43 models$5.16 · Amazon
AN01443SCapacitor56 models$2.16 · Amazon

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 55HDT51M: QD37801 (Frame Assembly), KS07221K (Frnt Filtr), CH01042M (Diode), NA71931 (PCB FIX METAL), FN00141 (Fuse), HP00773 (Switch Box), QJ01092 (Avc3 Foot), CH00051 (Record Bridge).

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 55HDT51M: NA71911 (Bracket Front), ME03381 (PCB Cover).

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 55HDT51M: AN01443S (Capacitor).

Before you buy

Match 55HDT51M 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.

Still not sure?

Use the model lookup tool to search by model or part number, or start from the symptom your appliance is showing.