HomeHVAC > A/C Clutch and CompressorFour Seasons 178328 A/C Compressor
Part #: 178328

Four Seasons 178328 A/C Compressor

New Compressor
24 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$402.33Free Shipping
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*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
New Compressor
Fitment: Kia and Hyundai, Optima and Sonata
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 New Compressor 178328

The Four Seasons New Compressor 178328 is designed specifically for Hyundai and Kia vehicles, including the Optima and Sonata models. This A/C compressor is engineered to work with R134a refrigerant and comes fully oil filled for optimal performance.

  • Compatible refrigerant type: R134a
  • Includes Pag 46 compatible refrigerant oil
  • Oil filled and ready for installation
  • 6-groove serpentine pulley for reliable belt engagement
  • Pin-type electrical terminal with 1 wire lead coil
  • Includes clutch with a maximum diameter of 4.5 inches
  • Tangent mount style with a 2.84375 inch distance from clutch to mounting flange
  • O-ring type suction and discharge ports with included green round o-rings
  • Coil less design and VS16E compressor type
  • Mount distance of 72.136 mm and pulley diameter of 114.3 mm

Four Seasons New Compressor Product Line Details

The Four Seasons New Compressor line offers brand new, factory-quality A/C compressors designed to meet or exceed OEM specifications. This product line focuses on delivering reliable, direct-fit replacements for specific vehicle applications. The 178328 compressor is part of this line, ensuring compatibility and performance for Hyundai Optima and Kia Sonata models requiring a VS16E compressor with serpentine pulley systems.

Detailed Product Description

This Four Seasons A/C compressor 178328 is engineered for vehicles using R134a refrigerant and Pag 46 oil, providing proper lubrication and efficient cooling system operation. The compressor includes a clutch assembly with a 4.5-inch maximum diameter and a 6-groove serpentine pulley designed for smooth belt engagement. The tangent mount style and precise mounting dimensions ensure a secure fit in Hyundai Optima and Kia Sonata models. The coil less design and pin-type terminal simplify electrical connections, while the included green O-rings for suction and discharge ports help maintain a sealed system. Note that mounting hardware is not included, and installation may require the use of an OE manifold.

Common Applications and Issues Addressed

  • Replacement for failed or leaking A/C compressors in Hyundai Optima and Kia Sonata
  • Restores proper refrigerant flow and pressure in R134a systems
  • Resolves clutch engagement problems due to worn or damaged clutches
  • Fixes noisy or inefficient compressor operation
  • Addresses oil contamination or compressor seizure issues

Installation Notes and Tips

  • Verify compatibility with vehicle make, model, and year before installation
  • Use OE manifold tools as needed for proper refrigerant system service
  • Ensure the system is evacuated and recharged with R134a refrigerant and Pag 46 oil
  • Check pulley alignment and belt condition during installation
  • Replace O-rings with those included to maintain system integrity

Quality Assurance and Warranty

The Four Seasons New Compressor 178328 is a brand new, direct-fit replacement part manufactured to meet OEM standards. It includes oil and clutch assembly for a complete solution. While mounting hardware is not included, the compressor is designed for reliable operation in Hyundai Optima and Kia Sonata vehicles. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.

BrandFour Seasons
Part Number178328
PositionNew Compressor
Clutch IncludedIncluded
Clutch Maximum Diameter4.500
Coil Clock Position1 Wire Lead
Coil TypeCoil Less
Compatible Refrigerant Oil TypePAG 46
Compressor TypeVS16E
Discharge Port TypeO-Ring
Distance From Clutch To Mounting Flange2.84375
ECV Harness ConnectorCompressor SE30F, Vehicle SE22M
Mount Distance MM72.136
Mounting Hardware?Not Included
Mounting TypeTangent Mount
New or RemanNew
O-Ring A Number/Desc[24602] / Green Round O-Ring
O-Ring B Number/Desc[24659] / Green O-Ring
Oil FilledIncluded
Printed Foot NoteMay Require use of OE Manifold
Pulley Belt TypeSerpentine
Pulley Diameter MM114.300
Pulley Groove Quantity6
Pulley Lip Diameter4.500
Pulley Ridge Diameter4.500
Refrigerant TypeR134a
Suction Port TypeO-Ring
Terminal TypePin
TypeHalla

This part fits 24 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2018KiaOptimaSN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2018KiaOptimaSXN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2018KiaOptimaLXN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2018KiaOptimaEXN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2017KiaOptimaSXN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2017KiaOptimaLXN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2017KiaOptimaEXN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2017KiaOptimaSX LimitedN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2016KiaOptima2.0LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2016KiaOptima2.4LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2016KiaOptima2.0LL4N/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2016KiaOptima2.4LL4N/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2015KiaOptima2.0LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2015KiaOptima2.4LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2014HyundaiSonata2.0LL4N/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2014HyundaiSonata2.0LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2014KiaOptima2.0LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2014KiaOptima2.4LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2013HyundaiSonata2.0LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2013KiaOptima2.0LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2013KiaOptima2.4LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2012HyundaiSonata2.0LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2012KiaOptima2.0LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; New Compressor
2012KiaOptima2.4LL4GASN/Aw/ VS16E Compressor; New w/ Clutch; 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:

1783282021813AM20218162086492760804716058639976651296175129617513190977013V110977013V110RUA76080AC1208649CO29159ANCO29159CT178328

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