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Four Seasons 58251 A/C Compressor
Reliable A/C Compressor for Pontiac Fiero
The Four Seasons New Compressor 58251 is designed specifically for the Pontiac Fiero, providing efficient and dependable air conditioning performance. This new A/C compressor is engineered to meet the exact specifications required for optimal HVAC system operation in your vehicle.
- Compatible with R134a refrigerant
- Includes oil pre-filled with PAG 150 compatible refrigerant oil
- Equipped with a high-pressure pressure switch
- Features a single-groove V-belt pulley with a 5.75-inch diameter
- Includes clutch assembly with a maximum diameter of 5.75 inches
- 12-volt coil with a 10 o'clock clock position
- Type II metric thread mounting for secure installation
- Sealing washer type discharge and suction ports with included O-rings
- Spade terminal type for electrical connections
- New compressor unit, not remanufactured
Four Seasons New Compressor Product Line
The Four Seasons New Compressor line offers brand-new, factory-quality A/C compressors designed to restore your vehicle's air conditioning system to original performance. This product line focuses on delivering reliable, direct-fit replacements that include essential components such as the clutch and pressure switch, ensuring compatibility and ease of installation. The 58251 model is part of this line, tailored for the Pontiac Fiero with precise engineering to match OEM specifications.
Detailed Product Description
This Four Seasons New Compressor 58251 is an HR6 type compressor designed for use with R134a refrigerant and pre-filled with PAG 150 oil to ensure proper lubrication and longevity. The compressor includes a clutch assembly and a high-pressure pressure switch, both critical for safe and efficient operation. The pulley system features a single groove V-belt design with a 5.75-inch diameter, matching the original equipment for the Pontiac Fiero. The mounting uses Type II metric threads, and the coil operates at 12 volts with a coil clock position at 10 o'clock, facilitating proper alignment and electrical connection. The discharge and suction ports use sealing washers with included O-rings to prevent leaks and maintain system integrity.
Common Issues Addressed by This Compressor
- Loss of A/C cooling due to compressor failure
- Clutch engagement problems affecting air conditioning operation
- Refrigerant leaks from worn or damaged compressor seals
- Electrical issues related to coil or pressure switch malfunction
- Noise or vibration caused by worn compressor components
Installation Notes and Tips
- Ensure the system is properly evacuated and recharged with R134a refrigerant
- Verify compatibility with the Pontiac Fiero model year before installation
- Use the included O-rings and sealing washers to prevent leaks
- Check belt alignment and tension on the single-groove V-belt pulley
- Confirm electrical connections with spade terminals are secure and corrosion-free
- Mount using Type II metric thread hardware (not included)
Quality Assurance and Warranty
The Four Seasons New Compressor 58251 is a brand-new unit manufactured to meet or exceed OEM standards. It includes essential components such as the clutch and pressure switch to ensure full functionality. While mounting hardware is not included, the compressor is designed for direct replacement in the Pontiac Fiero. Four Seasons products typically come with a limited warranty covering defects in materials and workmanship; please refer to the manufacturer’s warranty documentation for specific terms.
| Brand | Four Seasons |
|---|---|
| Part Number | 58251 |
| Position | New Compressor |
| Belt Width IN | 0.500 |
| Belt Width MM | 12.700 |
| Clutch Included | Included |
| Clutch Maximum Diameter | 5.750 |
| Coil Clock Position | 10 |
| Coil Voltage | 12 |
| Compatible Refrigerant Oil Type | PAG 150 |
| Compressor Type | HR6 |
| Discharge Port Type | Sealing Washer |
| Distance From Clutch To Mounting Flange | 1.203125 |
| Mount Distance MM | 30.480 |
| Mounting Hardware? | Not Included |
| Mounting Type | Type II Metric Thread |
| New or Reman | New |
| O-Ring A Number/Desc | [24354] / Sealing Washer |
| Oil Filled | Included |
| Pulley Belt Type | V-Belt |
| Pulley Diameter MM | 146.050 |
| Pulley Groove Quantity | 1 |
| Pulley Lip Diameter | 5.750 |
| Pulley Ridge Diameter | 5.750 |
| Refrigerant Type | R134a |
| Suction Port Type | Sealing Washer |
| Switch Included | High Pressure |
| Switch Type | Pressure Switch |
| Terminal Type | Spade |
| Type | GM |
This part fits 2 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1985 | Pontiac | Fiero | N/A | w/ DA6 Compressor; w/ HR6 Compressor; New w/ Clutch; w/ 5.7" Dia. Pulley; New Compressor |
| 1984 | Pontiac | Fiero | N/A | w/ DA6 Compressor; w/ HR6 Compressor; New w/ Clutch; w/ 5.7" Dia. Pulley; New Compressor |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.