HomeHVAC > Hoses and PipesFour Seasons 55571 A/C Refrigerant Discharge / Suction Hose Assembly
Part #: 55571

Four Seasons 55571 A/C Refrigerant Discharge / Suction Hose Assembly

Hose Assembly
2 vehicles fit this part
Select your vehicle to confirm fitment
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OE Direct Replacement — Bolt-on fit, no modifications needed
Hose Assembly
Fitment: Mercedes-Benz, 300D and 300TD
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 Hose Assembly 55571

The Four Seasons Hose Assembly 55571 is designed specifically for Mercedes-Benz 300D and 300TD models. This A/C refrigerant discharge and suction hose assembly ensures reliable performance in your vehicle's HVAC system, maintaining proper refrigerant flow and system integrity.

  • Constructed from durable aluminum and rubber materials
  • Compatible with R134a refrigerant type
  • Includes green o-rings and gaskets for secure sealing
  • Equipped with a switch service port and mounting bracket
  • Designed with female UNF o-ring fittings on both discharge and suction ends
  • OE replacement part ensuring proper fit and function

Four Seasons Hose Assembly Product Line Details

The Hose Assembly product line by Four Seasons focuses on delivering precise HVAC hose and pipe solutions tailored for specific vehicle applications. This line emphasizes quality materials such as aluminum and rubber to withstand refrigerant pressures and temperature variations. The 55571 hose assembly integrates features like included gaskets, switch ports, and brackets to facilitate installation and maintain system reliability in Mercedes-Benz 300D and 300TD models.

Detailed Product Description

This A/C refrigerant discharge and suction hose assembly (part number 55571) is engineered to handle R134a refrigerant, the standard for many modern automotive air conditioning systems. The assembly features female UNF o-ring fittings on both discharge and suction ends, ensuring a tight, leak-free connection. Included green o-rings (part numbers 24608, 24612, 24615, and 24610) provide additional sealing security. The hose assembly comes with a switch service port and a mounting bracket for ease of installation and serviceability. It does not include fittings or a muffler but incorporates a manifold to support system integration.

Common Applications and Issues Addressed

  • Replacement of worn or damaged A/C refrigerant hoses in Mercedes-Benz 300D and 300TD
  • Resolving refrigerant leaks caused by degraded o-rings or hose material
  • Restoring proper refrigerant flow for efficient air conditioning performance
  • Addressing issues related to faulty or missing switch service ports
  • Ensuring secure mounting and alignment with included bracket

Installation Notes and Tips

When installing the Four Seasons Hose Assembly 55571, ensure all included green o-rings are properly seated to prevent refrigerant leaks. The female UNF o-ring fittings require careful tightening to manufacturer torque specifications. Utilize the included mounting bracket to secure the hose assembly firmly in place. Verify compatibility with Mercedes-Benz 300D and 300TD models before installation. The switch service port facilitates system diagnostics and should be connected according to vehicle service guidelines.

Quality Assurance and Warranty

Four Seasons provides this hose assembly as an OE replacement part, meeting original equipment standards for fit and function. The use of aluminum and rubber materials ensures durability under typical operating conditions. The product includes all necessary gaskets and o-rings to maintain system integrity. Warranty details are provided by Four Seasons and typically cover defects in materials and workmanship under normal use.

BrandFour Seasons
Part Number55571
PositionHose Assembly
Bracket?w/ Bracket
Discharge End StyleUNF O-Ring
Discharge End TypeFemale O-Ring
Fittings IncludedNot Included
Friction Material Attachmentw/ Switch Port
Gasket Or Seal IncludedIncluded
Manifold?Yes
MaterialAluminum / Rubber
Muffler?w/o Muffler
O-Ring A Number/Desc[24608] / Green O-Ring
O-Ring B Number/Desc[24612] / Green O-Ring
O-Ring C Number/Desc[24615] / Green O-Ring
O-Ring D Number/Desc[24610] / Green O-Ring
O-Rings Included?Included
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port?w/o Service Port
Suction End StyleUNF O-Ring
Suction End TypeFemale O-Ring
Switch Included?w/ Switch Port
TypeDischarge & Suction Line

This part fits 2 vehicles. Search below:

YearMakeModelBody TypeLitersCylindersFuel TypePositionNotes
1987Mercedes-Benz300DN/AHose Assembly
1987Mercedes-Benz300TDWagon3.0LL6DIESELN/AHose 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:

111555711532112191915192006203464020378128348123975182055571603130335778128380260788999941A90620CWK781283HA1820T55571

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