Four Seasons 55321 A/C Refrigerant Discharge / Suction Hose Assembly
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Four Seasons
 Hose Assembly

Four Seasons 55321 A/C Refrigerant Discharge / Suction Hose Assembly

Brand Four Seasons 55321
Bracket? w/o Bracket
Discharge End IN 0.500
Discharge End MM 12.700
Discharge End Style Female Springlock
Discharge End Type Female Springlock
Fittings Included Not Included
Friction Material Attachment w/ Switch Port
Gasket Or Seal Included Included
Manifold? Yes
Material Aluminum / Rubber
Muffler? w/ Muffler
O-Ring A Number/Desc [24668] / Green O-Ring
O-Ring B Number/Desc [24670] / Green O-Ring
O-Rings Included? Included
O.E. Replacement? Yes
Refrigerant Type R134a
Service Port Type R134-A Quick Disconnect
Service Port? w/ Service Port
Suction End IN 0.625
Suction End MM 15.875
Suction End Style Male Springlock
Suction End Type Male Springlock
Switch Included? w/ Switch Port
Type Discharge & Suction Line
Product line Hose Assembly
Fits Ford and Mazda · 2 vehicles

OE replacement. Direct-fit hose assembly for A/C refrigerant lines.

Aluminum / rubber construction. Combines strength and flexibility for dependable routing.

Service port included. Built with an R134a quick-disconnect port and switch port.

Cross-references Four Seasons 55321, Gates 51546 and Global Parts Distributors LLC 4811300 for the same application. See all 33.

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Not what you need? See all A/C Refrigerant Discharge / Suction Hose Assembly options

OE A/C Hose Assembly for Explorer and Navajo

Four Seasons 55321 is an OE replacement A/C refrigerant discharge and suction hose assembly for 1994 Ford Explorer and 1994 Mazda Navajo applications. It combines aluminum and rubber construction with R134a service-port provisions, a muffler, and a switch port for the factory-style HVAC layout.

The Four Seasons Hose Assembly line focuses on direct-fit HVAC hose and pipe replacements built around original equipment routing and connection styles. Part number 55321 follows that approach with springlock ends, manifold integration, and sealed connections for serviceable A/C system repair.

  • Part number 55321 for OE-style HVAC service
  • Fits 1994 Ford Explorer and 1994 Mazda Navajo
  • Discharge and suction line assembly
  • Aluminum / rubber construction
  • R134a refrigerant type
  • Female springlock discharge end and male springlock suction end
  • Includes gasket or seal and O-rings
  • Service port with R134-A quick disconnect
  • Switch port included
  • Manifold and muffler included
  • OE replacement design

Detailed Product Overview

Four Seasons 55321 is built for vehicles using an R134a A/C system and a discharge/suction line layout with springlock connections. The hose assembly uses aluminum and rubber materials to balance routing flexibility with system durability, while the integrated manifold, muffler, service port, and switch port support the factory HVAC configuration. This part number 55321 is a direct replacement choice for 1994 Ford Explorer and 1994 Mazda Navajo models that require the specified hose-end styles and service-port setup.

This part cross-references Gates 51546 for the same application.

Common Repair Uses

  • Replacing a leaking or damaged A/C refrigerant hose assembly
  • Restoring refrigerant flow between HVAC components
  • Repairing cracked, corroded, or worn hose sections
  • Addressing service-port or switch-port related hose failures
  • Returning the A/C system to the correct OE-style hose routing

Installation Notes and Tips

Verify the discharge and suction end styles before installation: female springlock on the discharge side and male springlock on the suction side. Confirm the vehicle uses R134a refrigerant and the correct quick-disconnect service-port configuration. Replace seals and O-rings during service, and inspect mating fittings, compressor connections, and adjacent HVAC components for wear or contamination before reassembly.

Quality Assurance

Four Seasons 55321 is an OE replacement hose assembly built to match the listed application details for 1994 Ford Explorer and 1994 Mazda Navajo HVAC service.

Related reading

This part fits 2 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes
1994FordExplorerN/AHose Assembly
1994MazdaNavajoN/AHose Assembly
Directly replaces or cross-references 33 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Four Seasons — 55321Gates — 51546Global Parts Distributors LLC — 4811300UAC — HA10097C06216350426994219313024737527804928287157001260724963007178102901491194153137534635393781029111553211919143288918056A72871AC5453CWK781029F4TZ19D850HF47Z19D850AF47Z19D850GAHA10032HA10214CXH375YF2127YF2749