HomeHVAC > A/C Clutch and CompressorFour Seasons 4187NK A/C Compressor and Component Kit
Part #: 4187NK

Four Seasons 4187NK A/C Compressor and Component Kit

Complete A/C Kit
16 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Complete A/C Kit
Fitment: Mitsubishi, Galant, Eclipse, and Endeavor
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST

Overview of Four Seasons Complete A/C Kit 4187NK

The Four Seasons Complete A/C Kit 4187NK is designed to restore the air conditioning system in Mitsubishi Eclipse, Endeavor, and Galant models. This comprehensive kit includes a new compressor and essential components to ensure efficient cooling performance.

  • Includes new compressor (part 78497), filter drier (83125), and expansion valve (39179)
  • Compressor oil included for proper lubrication
  • Block type expansion device with insert o-ring inlet and outlet
  • Gaskets and seals included for secure installation
  • Receiver drier with 1.750 inch diameter and 8.625 inch length
  • Pad mount inlet and outlet fittings on receiver drier
  • Compatible with R134a refrigerant
  • Limited lifetime warranty for quality assurance

Details on Four Seasons Complete A/C Kit Line

The Complete A/C Kit line from Four Seasons provides a full set of components needed for a reliable air conditioning system replacement. This kit includes a new compressor along with a filter drier and expansion valve, designed to work together for optimal system performance. The inclusion of compressor oil and all necessary gaskets and seals simplifies installation and helps maintain system integrity.

Product Features and Specifications

This A/C compressor kit is engineered specifically for Mitsubishi Eclipse, Endeavor, and Galant vehicles using R134a refrigerant. The block type expansion device features insert o-ring fittings on both inlet and outlet to ensure leak-free connections. The receiver drier is pad mounted with a 1.750 inch diameter and 8.625 inch length, designed to fit precisely within the system. Compressor oil is included to maintain proper lubrication and extend compressor life. Gaskets and seals are provided to ensure a secure and reliable installation.

Common Applications and Issues Addressed

  • Replacement of a failing or noisy A/C compressor in Mitsubishi Eclipse, Endeavor, or Galant
  • Restoring cooling efficiency due to worn or damaged expansion valve
  • Resolving refrigerant leaks caused by faulty seals or gaskets
  • Improving system performance by replacing clogged filter drier
  • Upgrading to a complete kit for comprehensive A/C system repair

Installation Notes and Tips

When installing the Four Seasons Complete A/C Kit 4187NK, ensure all old refrigerant is properly evacuated from the system. Use the included gaskets and seals to prevent leaks at all connection points. Verify that the expansion valve uses the insert o-ring fittings for proper sealing. Properly charge the system with R134a refrigerant after installation. It is recommended to inspect the receiver drier mounting and fittings to confirm compatibility with the vehicle’s pad mount design.

Quality Assurance and Warranty

This Four Seasons Complete A/C Kit 4187NK comes with a limited lifetime warranty, providing coverage against defects in materials and workmanship. The kit is manufactured to meet OEM specifications for Mitsubishi Eclipse, Endeavor, and Galant models, ensuring reliable performance and durability in automotive air conditioning systems.

BrandFour Seasons
Part Number4187NK
PositionComplete A/C Kit
Compressor Oil IncludedIncluded
Compressor Oil TypeOil
Expansion Device TypeBlock Type
Expansion Valve Inlet TypeInsert O-Ring
Expansion Valve Outlet TypeInsert O-Ring
Gasket / Seals?Included
Kit Includes78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings
Receiver Drier/Accumulator Diameter IN1.750
Receiver Drier/Accumulator Inlet Fitting TypePad Mount
Receiver Drier/Accumulator Length IN8.625
Receiver Drier/Accumulator Outlet Fitting Size IN.402
Receiver Drier/Accumulator Outlet Fitting TypePad Mount
Refrigerant TypeR134a
TypeComplete Air Conditioning Kit w/ New Compressor
WarrantyLimited Lifetime

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2012MitsubishiGalantN/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2011MitsubishiEclipseN/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2011MitsubishiEndeavorN/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2011MitsubishiGalantN/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2010MitsubishiEclipse2.4LL4N/Aw/ MSC105C Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2010MitsubishiGalantN/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2009MitsubishiEclipse2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2009MitsubishiGalant2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2008MitsubishiEclipse2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2008MitsubishiGalant2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2007MitsubishiEclipse2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2007MitsubishiGalant2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2006MitsubishiEclipse2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2006MitsubishiGalant2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2005MitsubishiGalant2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit
2004MitsubishiGalant2.4LL4N/Aw/ MSC105CA Compressor; Includes: 78497 (New Compressor), 83125 (Filter Drier), 39179 (Exp Valve), 59007 (Oil), O-Rings; Complete A/C Kit

* 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:

4187NK520420MK1085

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.