HomeHVAC > A/C Clutch and CompressorFour Seasons 78609 A/C Compressor
Part #: 78609

Four Seasons 78609 A/C Compressor

New Compressor
4 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: Mazda, Protege
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 78609

The Four Seasons New Compressor 78609 is designed specifically for the Mazda Protege, providing reliable air conditioning performance. This A/C compressor is engineered to work with R134a refrigerant and includes essential components for efficient HVAC operation.

  • Compatible with Mazda Protege models
  • Uses R134a refrigerant and Pag 46 oil
  • Includes clutch and heat sensor switch
  • Features a 4-groove serpentine pulley
  • 12-volt coil with 1 wire lead
  • O-ring sealed suction and discharge ports
  • Tangent mount type with precise mounting dimensions

Four Seasons New Compressor Product Line Details

The Four Seasons New Compressor line offers brand-new, direct replacement compressors designed to meet original equipment specifications. The 78609 model is part of this line, ensuring compatibility and performance for the Mazda Protege’s HVAC system. This product line focuses on delivering fully assembled compressors with included clutches and heat sensor switches to simplify installation and restore proper air conditioning function.

Technical Specifications and Features

This Four Seasons A/C compressor 78609 is a TRS090 type compressor compatible with R134a refrigerant and uses Pag 46 oil for lubrication. It comes oil-filled and includes a heat switch sensor for system protection. The clutch assembly is included, featuring a maximum diameter of 3.75 inches and a 2.25-inch distance from clutch to mounting flange. The pulley has four grooves designed for serpentine belts, with a diameter of 3.75 inches (95.25 mm). The compressor uses a tangent mount with a mounting distance of 57.15 mm and pin-type electrical terminals. Both suction and discharge ports are sealed with green O-rings (part numbers 24608 and 24610) to ensure leak-free operation.

Common Applications and Problem Resolution

  • Restores A/C cooling performance in Mazda Protege vehicles
  • Replaces worn or failed compressors causing insufficient cooling
  • Addresses clutch engagement issues with included clutch assembly
  • Resolves refrigerant leaks at compressor ports with O-ring seals
  • Eliminates electrical faults related to heat sensor switch failure

Installation Notes and Tips

When installing the Four Seasons New Compressor 78609, ensure the use of compatible refrigerant oil type Pag 46 and R134a refrigerant. The included clutch and heat sensor switch simplify replacement, but mounting hardware is not included and must be reused or sourced separately. Verify the pulley groove count and belt type (serpentine) match the vehicle’s system. Proper torque on mounting bolts and correct electrical connections to the pin-type terminals are essential for reliable operation.

Quality Assurance and Warranty

This Four Seasons New Compressor 78609 is a brand-new unit manufactured to meet OEM standards for the Mazda Protege. It includes oil and necessary seals to ensure immediate functionality. While mounting hardware is not included, the compressor is tested for performance and durability. Warranty coverage details should be confirmed with the point of purchase or manufacturer documentation.

BrandFour Seasons
Part Number78609
PositionNew Compressor
Clutch IncludedIncluded
Clutch Maximum Diameter3.750
Coil Clock Position1 Wire Lead
Coil Voltage12
Compatible Refrigerant Oil TypePAG 46
Compressor TypeTRS090
Discharge Port TypeO-Ring
Distance From Clutch To Mounting Flange2.250
Mount Distance MM57.150
Mounting Hardware?Not Included
Mounting TypeTangent Mount
New or RemanNew
O-Ring A Number/Desc[24608] / Green O-Ring
O-Ring B Number/Desc[24610] / Green O-Ring
Oil FilledIncluded
Pulley Belt TypeSerpentine
Pulley Diameter MM95.250
Pulley Groove Quantity4
Pulley Lip Diameter3.750
Pulley Ridge Diameter3.750
Refrigerant TypeR134a
Suction Port TypeO-Ring
Switch IncludedHeat Sensor
Switch TypeHeat Switch
Terminal TypePin
TypeSanden/Sankyo

This part fits 4 vehicles. Search below:

YearMakeModelPositionNotes
1998MazdaProtegeN/Aw/ TRS090 Compressor; New w/ Clutch; New Compressor
1997MazdaProtegeN/Aw/ TRS090 Compressor; New w/ Clutch; New Compressor
1996MazdaProtegeN/Aw/ TRS090 Compressor; New w/ Clutch; New Compressor
1995MazdaProtegeN/Aw/ TRS090 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:

061006511178609143105NEW15219241919367020049532081332293N2745032750033005471700649876386096511637751163778609A84494AC1208133BC1F61450BC1M61450BC1M61450ACO4987CO4987ACCO4987ZCCWK638609T78609

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