HomeHVAC > Hoses and PipesFour Seasons 66251 A/C Refrigerant Suction Hose
Part #: 66251

Four Seasons 66251 A/C Refrigerant Suction Hose

Hose Assembly
⚙️ 29 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Hose Assembly
🚗Fitment: Subaru, Crosstrek, Impreza, XV, and XV Crosstrek
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Reliable A/C Refrigerant Suction Hose for Subaru Models

The Four Seasons Hose Assembly 66251 is designed specifically for Subaru Crosstrek, Impreza, XV, and XV Crosstrek models. This A/C refrigerant suction hose ensures proper low-pressure refrigerant flow within your vehicle's HVAC system, maintaining optimal air conditioning performance.

  • Constructed from durable aluminum and rubber materials for long-lasting use
  • Features a flange end and a P-nut fitting for secure connections
  • Compatible with R134a refrigerant systems
  • Includes gasket and fittings for a complete assembly
  • Equipped with a bracket for stable mounting
  • Includes one service port sized at 13 mm on the low-pressure side
  • Comes with black and green O-rings for proper sealing
  • OE replacement part ensuring direct fit and function

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing reliable hose assemblies for automotive HVAC systems. These assemblies combine high-quality materials like aluminum and rubber to withstand system pressures and environmental conditions. The 66251 part is engineered to meet OEM specifications, ensuring compatibility and performance for Subaru vehicles requiring a dependable suction line.

Detailed Product Description

The Four Seasons 66251 A/C refrigerant suction hose is a critical component in the HVAC system of Subaru Crosstrek, Impreza, XV, and XV Crosstrek models. It serves as the low-pressure suction line, facilitating the flow of R134a refrigerant from the evaporator to the compressor. The hose assembly features a flange on one end and a P-nut fitting on the other, providing secure and leak-resistant connections. Included are essential gaskets and fittings, along with black and green O-rings to ensure a tight seal. The assembly also includes a mounting bracket for proper installation and stability. This hose assembly does not include a muffler or switch but comes with a service port on the low-pressure side for maintenance access.

Common Issues Addressed by This Hose Assembly

  • Leaking refrigerant due to worn or damaged suction hoses
  • Reduced A/C cooling efficiency from low refrigerant flow
  • HVAC system pressure loss caused by faulty suction lines
  • Difficulty in servicing A/C system without a proper service port
  • Vibration or movement issues without a secure mounting bracket

Installation Notes and Tips

When installing the Four Seasons 66251 suction hose, ensure all O-rings are properly seated to prevent leaks. The included bracket should be used to secure the hose assembly firmly in place, minimizing vibration and wear. Verify that the service port is accessible for future maintenance. This hose assembly is designed as a direct OE replacement, so no modifications should be necessary for Subaru Crosstrek, Impreza, XV, and XV Crosstrek models.

Quality Assurance and Warranty

Four Seasons manufactures this hose assembly to meet or exceed OEM standards, ensuring reliable performance and durability. The 66251 part number is an exact replacement for the original equipment suction line, providing confidence in fit and function. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship.

BrandFour Seasons
Part Number66251
PositionHose Assembly
MaterialAluminum / rubber
End 1 TypeFlange
End 2 TypeP-nut fitting
Refrigerant TypeR134a
Component TypeSuction line
System PressureLow pressure
Gasket Or Seal IncludedIncluded
Switch Service PortW/o switch port
Fittings IncludedIncluded
Bracket?W/ bracket
DescriptionHose assemblies
Muffler?W/o muffler
O-Ring A Number/Desc[24150] / black o-ring
O-Ring A Quantity1
O-Ring B Number/Desc[24684] / green o-ring
O-Ring B Quantity1
O.E. Replacement?Yes
Service Port Qty1
Service Port Size13 mm
Service Port?W/ service port
Suction End TypeP-nut fitting
Sve Port Low SideLow side
Switch Included?Not included

This part fits 29 vehicles. Search below:

YearMakeModelSubmodelLitersCylindersFuel TypePositionNotes
2017SubaruCrosstrekN/ASuction Line; Hose Assembly
2016SubaruCrosstrek2.0LH4GASN/ASuction Line; Hose Assembly
2016SubaruImprezaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2016SubaruXVN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2015SubaruImprezaN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2015SubaruXVN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2015SubaruXV Crosstrek2.0LH4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014SubaruImpreza2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014SubaruImprezaLimited2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014SubaruImprezaBase2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014SubaruImprezaPremium2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014SubaruImprezaSport Premium2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2014SubaruImprezaSport Limited2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013SubaruImpreza2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013SubaruImprezaLimited2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013SubaruImprezaBase2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013SubaruImprezaPremium2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013SubaruImprezaSport Premium2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013SubaruImprezaSport Limited2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013SubaruXV2.0LH4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2013SubaruXV Crosstrek2.0LH4GASN/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012SubaruImprezaLimited2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012SubaruImprezaBase2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012SubaruImprezaTouring2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012SubaruImprezaSport2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012SubaruImprezaR2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012SubaruImprezaPremium2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012SubaruImprezaSport Premium2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; Hose Assembly
2012SubaruImprezaSport Limited2.0LH4N/AA/C Refrigerant Suction Hose fits multiple vehicle models.; 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:

2111496625173425FJ020785730A82751HA112334C

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