Buying HVAC replacement parts motors becomes difficult when the choices combine a specified motor with a piston engine, an oil repair part, and a knob. The useful payoff is simple: start with the exact component designation, then use price as a secondary decision point. The Carrier HVAC HD42AQ253 is the clearly motor-specific entry, while the 36446757000, Z4205542, and 336901-401 names point to substantially different component descriptions.
Quick take
For a motor request centered on HD42AQ253, the Carrier HVAC HD42AQ253 REPLACEMENT PARTS HP: 1/3 50/60 Hz-New is the focused choice because its description names horsepower, voltage, rotation, frame, and RPM. The 36446757000 For Air Conditioner Piston Engine Repair Parts is directed by its piston-engine model number. The 1PC Z4205542 Oil Central Air Conditioner Repair Parts #zc is identified by its oil repair-parts wording, while the Carrier Hvac 336901-401 Genuine OEM Replacement Part is described as a knob. These are not interchangeable simply because they sit in the same shopping category.
Listed price comparison
| Listed part | Component cue | Listed price | Relative position |
|---|---|---|---|
| 36446757000 For Air Conditioner Piston Engine Repair Parts 364-46757-000 | Piston Engine; Model 364-46757-000 | USD 359.78 | |
| 1PC Z4205542 Oil Central Air Conditioner Repair Parts #zc | Oil central air conditioner repair parts | USD 135.65 | |
| CARRIER HVAC HD42AQ253 REPLACEMENT PARTS HP: 1/3 50/60 Hz-New | 1/3 HP; 208/230 V; HD42AQ253 | USD 265.00 | |
| Carrier Hvac 336901-401- Genuine OEM Replacement Part | Genuine OEM replacement part described as a knob | USD 21.98 |
The listed range is wide because the component types differ. A knob, a motor with operating specifications, an oil repair part, and a piston engine should be sorted by their identifying wording before their position on the price bar.
Decision matrix
- Choose the Carrier HVAC HD42AQ253 route when the requirement is a motor identified by HD42AQ253, 1/3 HP, 208/230 V, and 1050 RPM.
- Focus on the 36446757000 entry when 364-46757-000 and Piston Engine are the required identifiers.
- Keep the 1PC Z4205542 Oil Central Air Conditioner Repair Parts #zc in view for a request using the Z4205542 oil repair-parts designation.
- Select the Carrier Hvac 336901-401 only when the needed component is the 336901-401 knob described in its title and description.
Product notes
36446757000 For Air Conditioner Piston Engine Repair Parts 364-46757-000

Choose the 36446757000 For Air Conditioner Piston Engine Repair Parts when the repair calls specifically for 364-46757-000 and piston-engine wording. Both the Model and MPN use that same identifier, and the package description names one piston engine. Its appeal is therefore the exact designation rather than a generic motor comparison. The trade-off is price placement: USD 359.78 is the highest shown. It is also labelled Piston Engine, so its component role is distinct from the 1/3 HP Carrier HD42AQ253 motor and from the 336901-401 knob.
1PC Z4205542 Oil Central Air Conditioner Repair Parts #zc

The 1PC Z4205542 Oil Central Air Conditioner Repair Parts #zc makes sense for a request that expressly uses the Z4205542 and oil central air conditioner repair-parts wording. It is listed as new and retains its #zc designation in the title, giving shoppers a concrete textual reference point among repair-part names. Its limitation is the component framing: it is presented as an oil central air conditioner repair part rather than as the model-numbered motor described by HD42AQ253. At USD 135.65, it sits between the knob and the two higher-priced component entries, but the Z4205542 wording should remain the deciding factor.
CARRIER HVAC HD42AQ253 REPLACEMENT PARTS HP: 1/3 50/60 Hz-New

Carrier HVAC HD42AQ253 REPLACEMENT PARTS HP: 1/3 50/60 Hz-New is the direct pick for a motor request that names HD42AQ253. It has the clearest collection of operating identifiers here: 1/3 HP, 50/60 Hz, PH1, CCW rotation, 208/230 V, Frame 48, and 1050 RPM. Its Carrier model and MPN both read HD42AQ253, while the description also identifies a ball bearing. Those details give it a defined motor profile. The limitation is specificity rather than broad substitution: its CCW rotation and stated voltage focus attention on the HD42AQ253 specification set, not on the piston-engine, oil-part, or knob descriptions.
Carrier Hvac 336901-401- Genuine OEM Replacement Part

Carrier Hvac 336901-401- Genuine OEM Replacement Part is the choice for an item identified by the 336901-401 number and knob wording. It is called a genuine OEM replacement part in the title, and the description directly calls it a Carrier Hvac knob. The MPN is 336901-401 and the condition is New, creating a consistent identifier for that component. Its constraint in a motors search is clear: its Type is FOOD_SERVICE_SUPPLY and it is described as a knob, whereas the Carrier HD42AQ253 explicitly provides horsepower and electrical operating details. At USD 21.98, it is the lowest listed price, but component role should determine the selection.
Final recommendation by use case
Start with Carrier HVAC HD42AQ253 when the job calls for a motor with the stated HD42AQ253 operating profile. Choose the 36446757000 piston-engine entry when its exact 364-46757-000 designation leads the repair. Let the Z4205542 name and oil repair-parts wording direct the choice toward the 1PC Z4205542 entry. Select the Carrier Hvac 336901-401 when the needed item is specifically a Carrier Hvac knob. Across this four-item range, matching the named component is more useful than treating price as the primary filter.