HomeHVAC > A/C Clutch and CompressorFour Seasons 178399 A/C Compressor
Part #: 178399

Four Seasons 178399 A/C Compressor

New Compressor
8 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
New Compressor
Fitment: Ford, Focus
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Overview of Four Seasons New Compressor 178399

The Four Seasons New Compressor 178399 is designed specifically for Ford Focus models requiring reliable HVAC performance. This A/C compressor supports both R-134a and R1234yf refrigerants, ensuring compatibility with modern vehicle air conditioning systems.

  • Compatible refrigerant types: R-134a or R1234yf
  • Includes oil for optimal lubrication
  • 4-groove serpentine pulley for efficient belt engagement
  • Pin-type electrical terminal with 1 wire lead coil clock position
  • Clutch included with a maximum diameter of 4.25 inches
  • 12-volt coil voltage for standard vehicle electrical systems
  • Tangent mount type for secure installation
  • Compressor type: 6sbh14c Nippondenso design
  • Includes three O-rings ([24257], [24642], [24243]) for proper sealing

About the Four Seasons New Compressor Product Line

The Four Seasons New Compressor line offers brand-new, direct replacement compressors engineered to meet OEM specifications. This product line focuses on delivering reliable HVAC components that maintain factory performance standards. The New Compressor 178399 is part of this line, providing a fresh, fully assembled compressor unit designed for straightforward installation and long-term durability.

Detailed Product Description

This Four Seasons A/C compressor features a 4-groove serpentine pulley with a diameter of approximately 4.25 inches (107.95 mm), designed to match the Ford Focus belt system. The clutch assembly is included, with a maximum diameter of 4.25 inches and a distance from clutch to mounting flange of 1.59375 inches, ensuring proper fit and function. The compressor operates on a 12-volt coil with a pin-type terminal and a single wire lead coil clock position, simplifying electrical connections. It is a tangent mount type, compatible with the vehicle’s mounting points. The unit comes pre-filled with oil and includes three O-rings for sealing, which may require the use of the original equipment manifold during installation.

Compatible Vehicles and Common Applications

  • Replacement for Ford Focus A/C compressor failures
  • Resolves issues with insufficient cooling or compressor clutch engagement
  • Addresses refrigerant leaks due to worn or damaged compressor seals
  • Fixes noisy or seized compressor units
  • Restores proper air conditioning system pressure and performance

Installation Notes and Tips

Installation of the Four Seasons New Compressor 178399 requires attention to the following:

  • Use the original equipment manifold for proper O-ring sealing as noted
  • Ensure the serpentine belt is correctly routed over the 4-groove pulley
  • Verify electrical connections match the pin-type terminal and single wire lead
  • Check clutch clearance and alignment during installation
  • Confirm compatibility with vehicle refrigerant type (R-134a or R1234yf)

Quality Assurance and Warranty

Four Seasons New Compressor 178399 is a new, direct replacement part manufactured to meet or exceed OEM standards. The compressor is oil-filled and includes all necessary sealing components except mounting hardware. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship. Always consult product documentation or the manufacturer for exact warranty terms.

BrandFour Seasons
Part Number178399
PositionNew Compressor
Clutch IncludedIncluded
Clutch Maximum Diameter4.25
Coil Clock Position1 Wire Lead
Coil Voltage12
Compressor Type6SBH14C
Distance From Clutch To Mounting Flange1.59375
ECV Harness ConnectorCompressor SE10F, Vehicle SE10M
Mounting Hardware?Not Included
Mounting TypeTangent Mount
New or RemanNew
O-Ring A Number/Desc[24257]
O-Ring B Number/Desc[24642]
O-Ring C Number/Desc[24243]
Oil FilledIncluded
Printed Foot NoteMay Require use of OE Manifold
Pulley Belt TypeSerpentine
Pulley Diameter MM107.95
Pulley Groove Quantity4
Pulley Lip Diameter4.25
Pulley Ridge Diameter4.25
Refrigerant TypeR-134a or R1234yf
Terminal TypePin
TypeNippondenso

This part fits 8 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersPositionNotes
2018FordFocusS2.0LL4N/Aw/ 7SEU17C Compressor; New w/ Clutch; Replacement of Stretch Fit Belt is Required; Replacement of Stretch Fit Belt is Required; New Compressor
2018FordFocusSE2.0LL4N/Aw/ 7SEU17C Compressor; New w/ Clutch; Replacement of Stretch Fit Belt is Required; Replacement of Stretch Fit Belt is Required; New Compressor
2018FordFocusSEL2.0LL4N/Aw/ 7SEU17C Compressor; New w/ Clutch; Replacement of Stretch Fit Belt is Required; Replacement of Stretch Fit Belt is Required; New Compressor
2018FordFocusTitanium2.0LL4N/Aw/ 7SEU17C Compressor; New w/ Clutch; Replacement of Stretch Fit Belt is Required; Replacement of Stretch Fit Belt is Required; New Compressor
2017FordFocus2.0LL4N/Aw/ 6SBH14C Compressor; New w/ Clutch; Replacement of Stretch Fit Belt is Required; Replacement of Stretch Fit Belt is Required; New Compressor
2016FordFocus2.0LL4N/Aw/ 6SBH14C Compressor; New w/ Clutch; Replacement of Stretch Fit Belt is Required; Replacement of Stretch Fit Belt is Required; New Compressor
2015FordFocus2.0LL4N/Aw/ 6SBH14C Compressor; New w/ Clutch; Replacement of Stretch Fit Belt is Required; Replacement of Stretch Fit Belt is Required; New Compressor
2014FordFocus2.0LL4N/Aw/ 6SBH14C Compressor; New w/ Clutch; From 2/14; Replacement of Stretch Fit Belt is Required; Replacement of Stretch Fit Belt is Required; 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:

141308NC178399202083220804427999964845565132187513218A79999AC1208044CO29190CEV6Z19703AH1FZ19703BT178399YCC376YCC463

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