Parts for KDL40BX450 — Sony
We found 21 parts confirmed to fit the Sony KDL40BX450.
Compatibility table
| Part # | Part | Also fits | Reference price |
|---|---|---|---|
| 440985303 | BEZEL (40A | This model only | $79.20 · Amazon |
| 440985301 | Bezel Assembly | This model only | $51.54 · Amazon |
| 191010599 | CABLE,14P | This model only | $8.74 · Amazon |
| 191010601 | CABLE,14P | This model only | $14.61 · Amazon |
| 191010598 | Cable,4p | This model only | $11.47 · Amazon |
| 189519411 | INVERTER MT BOARD | This model only | $108.42 · Amazon |
| 440985611 | Rear Cover | This model only | $93.51 · Amazon |
| X25834631 | Television Stand Assembly | This model only | $104.14 · Amazon |
| 430080301 | COVER,AC | 2 models | $3.54 · Amazon |
| 329907105 | FLYER,SAFE | 2 models | $2.90 · Amazon |
| 430079701 | FRAME,BOTT | 2 models | $51.54 · Amazon |
| 189518311 | MOUNTED PWB H | 2 models | $63.51 · Amazon |
| 189518211 | PCB | 2 models | $380.81 · Amazon |
| 189518911 | PCB Timing Control Board | 2 models | $130.18 · Amazon |
| 416612621 | Support Pa | 2 models | $7.19 · Amazon |
| 430080511 | BRACKET SIDE (APOF) | 3 models | $11.02 · Amazon |
| 430080701 | Bracket | 3 models | $4.59 · Amazon |
| 183993831 | Power Cord | 3 models | $25.09 · Amazon |
| 258060811 | SCREW +PSW M5X16 | 12 models | $31.64 · Amazon |
| 316455410 | Range Oven Control Board 316455410 | 512 models | $115.74 · Amazon |
| ULTRAWF | Frigidaire PureSource Ultra Refrigerator Water Filter ULTRAWF | 966 models | $86.77 · 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.
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 KDL-40BX450: 440985303 (BEZEL (40A), 440985301 (Bezel Assembly), 440985611 (Rear Cover), 430080301 (COVER,AC), 416612621 (Support Pa), 430080511 (BRACKET SIDE (APOF)), 430080701 (Bracket), 258060811 (SCREW +PSW M5X16).
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 KDL-40BX450: 191010599 (CABLE,14P), 191010601 (CABLE,14P), 191010598 (Cable,4p), 189519411 (INVERTER MT BOARD), X25834631 (Television Stand Assembly), 329907105 (FLYER,SAFE), 430079701 (FRAME,BOTT), 189518311 (MOUNTED PWB H), 189518211 (PCB), 183993831 (Power Cord), ULTRAWF (Frigidaire PureSource Ultra Refrigerator Water Filter ULTRAWF).
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 KDL-40BX450: 189518911 (PCB Timing Control Board), 316455410 (Range Oven Control Board 316455410).
Before you buy
Match KDL40BX450 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.