Parts for 51AE45 — Carrier Air Conditioner
We found 20 parts confirmed to fit the Carrier Air Conditioner 51AE45.
Same parts list as 51AE4 (Carrier Air Conditioner). 51AE45 shares an identical confirmed parts list with 51AE4 (Carrier Air Conditioner). That page is the canonical version of this parts list — use it if you want the primary reference, or stay here since the list below is exactly the same for 51AE45.
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.
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 51AE45: AL56AU216 (#10 OZ X 1/2 LG. SCREW (QTY 22) (51AE45)), AL56AU218 (#1OB X 3/4 LG. PAN HEAD SCREW (QTY 4) (51AE45)), 51AE4104 (BASE PAN ASSEMBLY (51AE4) (51AE45)), 51AE4583 (CAPILLARY AND STRAINER ASSEMBLY (INCLUDES :40)), 51AE4293 (COMPRESSOR PLASTIC COVER), KA56TR015 (MOUNTING GROMMET (QTY 5)), 51AE41761 (WINDOW MOUNTING BRACKET ,BEIGE), 51AE41771 (WINDOW MOUNTING BRACKET, WHITE (51AE4, 51AE45)).
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 51AE45: 51AE41751 (BALL STUD (2)), 51AP2243 (CORD AND PLUG ASSEMBLY , WHITE(51AE4) (51AE45)), 51AP2103 (Condenser Coil Assembly), HR64DA051 (Control Switch), 51AE41671 (ESCUTCHEON (1)), LA21AA056 (EVAPORATOR BLOWER WHEEL), 51AE461452 (FAN MOTOR CUP (51AE46)), 51AE4703 (MOTOR-COMPRESSOR ASSEMBLY-1HP-115V-1 PH-60 CYCLE TECUMSEH MODEL-AU14 (INCLUDES:14)), 51AE46213 (OUTER WRAPPER ASSEMBLY (INCLUDES KEYS 2,3,4) BEIGE (51AE4)), AT25AB201 (Wing Nut).
Door and drum seals
Symptom: A door or drum seal that has lost its grip, letting water or conditioned air escape past it.
Check: Inspect the seal for tears, flattening, or gaps, and check it against your model's part number before ordering.
Parts in this group on 51AE45: 51AE41221 (SEAL GASKET, WING PANEL , WHITE (51AE4, 51AE45)).
Heat control (thermostats, fuses, heating element)
Symptom: The appliance runs but heats or cools inconsistently, or shuts off partway through a cycle.
Check: With the appliance unplugged, check continuity across the part with a multimeter -- no continuity means it has failed.
Parts in this group on 51AE45: HH22UB056 (Thermostat).
Before you buy
Match 51AE45 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 Carrier Air Conditioner 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.