HomeHVAC > Hoses and PipesFour Seasons 56448 A/C Refrigerant Suction Hose
Part #: 56448

Four Seasons 56448 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 16 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Chevrolet, Buick, Saturn, and Pontiac, Uplander, Terraza, Relay, and Montana
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Overview of Four Seasons Hose Assembly 56448

The Four Seasons Hose Assembly 56448 is designed for reliable performance in the HVAC system of select GM vehicles. This A/C refrigerant suction hose is engineered to meet the specific needs of Buick Montana, Chevrolet Uplander, Pontiac Relay, and Saturn Terraza models, ensuring proper refrigerant flow and system efficiency.

  • Constructed from durable aluminum and rubber materials
  • Features a flange end and a P-nut fitting for secure connections
  • Compatible with R134-a refrigerant systems
  • Includes gasket, fittings, and bracket for installation
  • Designed as a low-pressure suction line with service port included

Four Seasons Hose Assembly Product Line Details

The Hose Assembly line by Four Seasons focuses on delivering complete hose solutions for automotive HVAC systems. This product line emphasizes compatibility and durability, providing assemblies that include necessary fittings and seals to simplify installation and maintain system integrity. The 56448 part is a direct OE replacement, ensuring it meets original equipment specifications for the vehicles it supports.

Detailed Product Description

This A/C refrigerant suction hose assembly combines aluminum and rubber to balance flexibility and strength, suitable for low-pressure refrigerant flow in R134-a systems. The hose features a flange on one end and a P-nut fitting on the other, designed to fit securely within the HVAC system of Buick Montana, Chevrolet Uplander, Pontiac Relay, and Saturn Terraza models. Included components such as the gasket, slimline washer O-rings (quantity of three), fittings, and mounting bracket facilitate a complete and secure installation. The assembly does not include a muffler or switch but comes with a service port to aid in system maintenance.

Common Applications and Issues Addressed

  • Replacement of worn or leaking A/C refrigerant suction hoses
  • Restoring proper refrigerant flow in Buick Montana and Chevrolet Uplander HVAC systems
  • Resolving low-pressure leaks in Pontiac Relay and Saturn Terraza air conditioning lines
  • Eliminating system inefficiencies caused by damaged or cracked hoses
  • Ensuring compatibility with R134-a refrigerant for optimal system performance

Installation Notes and Tips

  • Verify compatibility with vehicle make and model before installation
  • Ensure all included fittings, gaskets, and O-rings are properly seated to prevent leaks
  • Use the included bracket to secure the hose assembly firmly in place
  • Check for proper torque on flange and P-nut fittings to maintain system pressure
  • Inspect the service port for accessibility during routine maintenance

Quality Assurance and Warranty

The Four Seasons Hose Assembly 56448 is an OE replacement part, manufactured to meet original equipment standards for durability and fitment. It includes all necessary seals and fittings to ensure a reliable installation. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.

BrandFour Seasons
Part Number56448
PositionHose Assembly
Bracket?w/ Bracket
Component TypeSuction Line
DescriptionHose Assemblies
End 1 TypeFlange
End 2 TypeP-Nut Fitting
Fittings IncludedIncluded
Friction Material Attachmentw/o Switch Port
Gasket Or Seal IncludedIncluded
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24404] / Slimline Washer
O.E. Replacement?Yes
Refrigerant TypeR134-A
Service Port?w/ Service Port
Suction End TypeP-Nut Fitting
Switch Included?Not Included
System PressureLow Pressure

This part fits 16 vehicles. Search below:

YearMakeModelLitersCylindersPositionNotes
2008ChevroletUplanderN/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2007BuickTerrazaN/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2007ChevroletUplanderN/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2007SaturnRelayN/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2006BuickTerraza3.5LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2006BuickTerraza3.9LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2006ChevroletUplander3.5LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2006ChevroletUplander3.9LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2006PontiacMontana3.5LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2006PontiacMontana3.9LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2006SaturnRelay3.5LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2006SaturnRelay3.9LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2005BuickTerrazaN/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2005ChevroletUplanderN/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2005PontiacMontana3.5LV6N/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly
2005SaturnRelayN/ASuction Line; Evaporator End; w/ Rear AC; Hose Assembly

* 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:

133376315187984152594721589166615913003201352481308856448700173785427A70884HA113878CT56448

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