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Four Seasons 4186N A/C Compressor KitOE Quality 60-Day Returns
Part #: 4186N

Four Seasons 4186N A/C Compressor Kit

PAC-Kit w/ New Compressor
⚙️ 28 vehicles fit this part
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Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$409.30Free Shipping
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✅ In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
✅OE Direct Replacement — Bolt-on fit, no modifications needed
📦PAC-Kit w/ New Compressor
🚗Fitment: Ford and Mercury, Cougar, Montego, and Thunderbird
🔄Easy Returns — Return within 60 days for a full refund
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Reliable A/C Compressor Kit for Ford and Mercury Vehicles

The Four Seasons PAC-Kit w/ New Compressor 4186N offers a complete solution for restoring your vehicle's air conditioning system. Designed specifically for Ford and Mercury models, this A/C compressor kit ensures compatibility and dependable performance.

  • Complete A/C compressor kit including a new compressor
  • Compatible with Ford Cougar, Mercury Cougar, Ford Montego, Mercury Montego, Ford Thunderbird, and Mercury Thunderbird
  • Part number 4186N for precise identification and fitment
  • Manufactured by Four Seasons, a trusted brand in automotive HVAC components
  • Part of the PAC-Kit w/ New Compressor product line for comprehensive system replacement

About the Four Seasons PAC-Kit w/ New Compressor Line

The PAC-Kit w/ New Compressor product line from Four Seasons is designed to provide a complete HVAC solution by combining a new compressor with necessary components for system replacement. This approach simplifies repairs and helps ensure that the air conditioning system functions efficiently after installation. The 4186N kit is tailored for select Ford and Mercury vehicles, offering a reliable option for restoring A/C performance.

Product Details and Compatibility

The Four Seasons 4186N A/C compressor kit is engineered to fit specific Ford and Mercury models, including the Cougar, Montego, and Thunderbird. This targeted fitment helps maintain proper system operation and reduces the risk of installation issues. The kit includes a new compressor designed to meet OEM specifications, supporting effective cooling and system longevity.

Common Applications and Problem Resolution

  • Replacement of a failing or noisy A/C compressor
  • Restoring cooling performance in Ford Cougar and Mercury Cougar vehicles
  • Addressing A/C system failures in Ford Montego and Mercury Montego models
  • Repairing air conditioning issues in Ford Thunderbird and Mercury Thunderbird
  • Upgrading worn components to improve HVAC reliability

Installation Notes and Tips

When installing the Four Seasons 4186N PAC-Kit w/ New Compressor, ensure the vehicle is compatible by verifying make and model. Proper evacuation and recharge of the A/C system are essential to avoid contamination and ensure optimal performance. Follow manufacturer guidelines for torque specifications and system testing after installation.

Quality Assurance and Warranty

Four Seasons products undergo rigorous quality control to meet industry standards. The PAC-Kit w/ New Compressor 4186N is backed by Four Seasons' warranty coverage, providing assurance of durability and performance. Refer to Four Seasons documentation for specific warranty terms.

This part fits 28 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
1979FordThunderbirdN/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; Drier w/ 3 Bracket; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1979MercuryCougarN/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1978FordThunderbirdN/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; Drier w/ 3 Bracket; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1978MercuryCougar6.6LV8N/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; Drier w/ 3 Bracket; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1977FordThunderbirdN/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1977MercuryCougarN/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1976MercuryCougar5.8LV8N/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1976MercuryCougar6.6LV8N/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1976MercuryMontego5.8LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1976MercuryMontego6.6LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1975MercuryCougar5.8LV8N/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1975MercuryCougar6.6LV8N/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1975MercuryMontego5.8LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1975MercuryMontego6.6LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1974MercuryCougar5.8LV8N/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1974MercuryCougar6.6LV8N/Aw/ York Compressor; w/ Factory Air; w/ Externally Equalized Expansion Valve; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1974MercuryMontego5.0LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1974MercuryMontego5.8LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1974MercuryMontego6.6LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1974MercuryMontegoN/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1973MercuryMontego5.0LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1973MercuryMontego5.8LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1973MercuryMontego6.6LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1973MercuryMontegoN/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1972MercuryMontego5.0LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1972MercuryMontego5.8LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1972MercuryMontego6.6LV8N/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor
1972MercuryMontegoN/Aw/ York Compressor; w/ Factory Air; 58022 (New Compressor), 33377 (Filter Drier), 38864 (Exp Valve), 69991 (Flush), 59007 (Oil); PAC-Kit w/ New Compressor

* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

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