HomeHVAC > A/C Clutch and CompressorFour Seasons 77545 A/C Compressor
Part #: 77545

Four Seasons 77545 A/C Compressor

Reman Compressor
21 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Reman Compressor
Fitment: Dodge, Ram 1500 Van, Ram 2500 Van, Ram 3500 Van, B1500, B2500, and B3500
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Reliable A/C Compressor for Dodge Ram and B-Series Vans

The Four Seasons Reman Compressor 77545 is designed to restore your vehicle's air conditioning system performance. Engineered for Dodge B1500, B2500, B3500, Ram 1500 Van, Ram 2500 Van, and Ram 3500 Van models, this remanufactured A/C compressor ensures compatibility and efficient cooling with R134a refrigerant.

  • Compatible with R134a refrigerant and Pag 46 oil
  • Includes clutch and heat switch for seamless operation
  • 7-groove serpentine pulley with 3.75-inch diameter
  • 12-volt coil with 1 wire lead for easy electrical connection
  • Tangent mount type with precise mounting distance of 48 mm
  • Sealing washer type suction and discharge ports with included O-rings
  • Remanufactured Sanden/Sankyo TRF105 compressor type

Four Seasons Reman Compressor Product Line

The Reman Compressor line by Four Seasons offers remanufactured components that meet strict quality standards to provide reliable HVAC performance. This product line focuses on restoring compressors to factory specifications, including essential parts like clutches and switches, ensuring compatibility with original equipment refrigerants and oils. The 77545 model exemplifies this approach by delivering a remanufactured compressor tailored for specific Dodge Ram and B-Series van applications.

Detailed Product Description

The Four Seasons 77545 A/C compressor is a remanufactured unit designed for Dodge B1500, B2500, B3500, and Ram 1500, 2500, and 3500 Vans. It operates with R134a refrigerant and is compatible with Pag 46 oil, which is included to maintain proper lubrication. The compressor features a 7-groove serpentine pulley with a 3.75-inch diameter, ensuring proper belt alignment and drive efficiency. The clutch assembly is included, with a maximum diameter of 3.75 inches and a 1.90625-inch distance from clutch to mounting flange, facilitating straightforward installation. The coil operates at 12 volts with a single wire lead, and the heat switch is included to protect the system from overheating. Both suction and discharge ports use sealing washers with included O-rings for secure, leak-free connections. The tangent mount type with a 48 mm mount distance ensures precise fitment in the specified Dodge models.

Common Applications and Issues Addressed

  • Restores A/C cooling performance in Dodge Ram 1500 and B-Series vans
  • Replaces failing or noisy compressors in Ram 2500 and 3500 Vans
  • Solves clutch engagement problems with included clutch assembly
  • Addresses refrigerant leaks with sealing washer ports and O-rings
  • Improves system reliability by replacing worn or damaged compressors

Installation Notes and Tips

  • Ensure compatibility with Dodge B1500, B2500, B3500, Ram 1500, 2500, and 3500 Vans before installation
  • Use Pag 46 oil as specified for optimal lubrication
  • Verify the serpentine belt condition and replace if worn
  • Check electrical connections for the 12-volt coil and heat switch
  • Replace mounting hardware if necessary, as it is not included

Quality Assurance and Warranty

This Four Seasons Reman Compressor 77545 is remanufactured to meet or exceed OEM standards for performance and durability. It includes essential components such as the clutch and heat switch to ensure proper operation. While mounting hardware is not included, the compressor comes with sealing washers and O-rings to maintain system integrity. Warranty details vary by distributor but typically cover defects in materials and workmanship.

BrandFour Seasons
Part Number77545
PositionReman Compressor
Clutch IncludedIncluded
Clutch Maximum Diameter3.750
Coil Clock Position1 Wire Lead
Coil Voltage12
Compatible Refrigerant Oil TypePAG 46
Compressor TypeTRF105
Discharge Port TypeSealing Washer
Distance From Clutch To Mounting Flange1.90625
Mount Distance MM48.000
Mounting Hardware?Not Included
Mounting TypeTangent Mount
New or RemanRemanufactured
O-Ring A Number/Desc[24355] / Sealing Washer
O-Ring B Number/Desc[24354] / Sealing Washer
Oil FilledIncluded
Pulley Belt TypeSerpentine
Pulley Diameter MM95.250
Pulley Groove Quantity7
Pulley Lip Diameter3.750
Pulley Ridge Diameter3.750
Refrigerant TypeR134a
Suction Port TypeSealing Washer
Switch IncludedHeat Switch
Switch TypeHeat Switch
Terminal TypePin
TypeSanden/Sankyo

This part fits 21 vehicles. Search below:

YearMakeModelPositionNotes
2003DodgeRam 1500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2003DodgeRam 2500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2003DodgeRam 3500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2002DodgeRam 1500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2002DodgeRam 2500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2002DodgeRam 3500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2001DodgeRam 1500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2001DodgeRam 2500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2001DodgeRam 3500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2000DodgeRam 1500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2000DodgeRam 2500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
2000DodgeRam 3500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1999DodgeRam 1500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1999DodgeRam 2500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1999DodgeRam 3500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1998DodgeB1500N/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1998DodgeB2500N/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1998DodgeB3500N/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1998DodgeRam 1500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1998DodgeRam 2500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman Compressor
1998DodgeRam 3500 VanN/Aw/ TRF105 Compressor; Reman w/ Clutch; Reman 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:

03449011177545143133C1521023152206019193611231425267627267649524970551126465351177545A72676DW77545HR11267

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