Four Seasons
Hose Assembly

Four Seasons 56414 A/C Refrigerant Discharge / Suction Hose Assembly

Brand Four Seasons 56414
Material Aluminum / rubber
Refrigerant Type R134a
Gasket Or Seal Included Included
Switch Service Port W/ switch port
Fittings Included Not included
Bracket? W/o bracket
Discharge End Style P-nut fitting
Discharge End Type P-nut fitting
Manifold? Yes
Muffler? W/ muffler
O-Ring A Number/Desc [24402] / slimline washer
O-Ring A Quantity 1
O-Ring B Number/Desc [24404] / slimline washer
O-Ring B Quantity 1
O-Rings Included? Included
O.E. Replacement? Yes
Service Port Type Service port
Service Port? W/o service port
Suction End Style P-nut fitting
Suction End Type P-nut fitting
Switch Included? Not included
Type Discharge & suction line
Product line Hose Assembly
Fits Chevrolet and GMC · 8 vehicles

OE replacement. Built as a direct-fit hose assembly for straightforward service.

Aluminum / rubber construction. Combines strength and flexibility for dependable refrigerant flow.

Manifold design. Integrates the discharge and suction lines into one assembly.

Cross-references Dorman - HELP 56414, UAC HA11377C and 282928 for the same application. See all 17.

$135.29Free shipping
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OE Replacement A/C Hose Assembly

Four Seasons 56414 is an OE replacement A/C refrigerant discharge and suction hose assembly for select 2001-2002 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 applications with a Delphi compressor. Built with aluminum and rubber construction, it is configured for R134a systems and includes the seals and O-rings needed for the hose connection points.

This Four Seasons hose assembly is part of the Hose Assembly line, a product line focused on direct-fit HVAC hose and pipe replacement parts for service work on factory-style air conditioning systems. The 56414 hose assembly is built around the original routing and connection style used on the listed trucks, including manifold design, muffler, and switch port provisions.

Key Features

  • Part number 56414
  • OE replacement A/C refrigerant discharge / suction hose assembly
  • Aluminum / rubber construction
  • For R134a refrigerant systems
  • Includes gasket or seal and O-rings
  • Manifold design with muffler
  • Switch port provision included
  • P-nut fitting on discharge and suction ends
  • Fits select Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 models with Delphi compressor

Detailed Description

Four Seasons 56414 is engineered as a direct OE-style replacement for the A/C refrigerant discharge and suction line on select 2001-2002 Chevrolet Silverado 2500 HD, Chevrolet Silverado 3500, GMC Sierra 2500 HD, and GMC Sierra 3500 trucks. The aluminum and rubber construction supports the factory-style hose routing, while the manifold layout and muffler match the original system configuration used on these applications. If you are replacing a worn or leaking A/C hose assembly on a Silverado or Sierra with a Delphi compressor, this part number 56414 provides the correct connection style for service repair.

This part cross-references UAC HA11377C for the same application.

What It Helps Fix

  • A/C refrigerant leaks at the hose assembly
  • Loss of cooling performance from damaged discharge or suction lines
  • Cracked, hardened, or deteriorated rubber hose sections
  • Corrosion or wear at the hose connection points
  • Service issues related to a failed factory-style manifold hose assembly

Installation Notes and Tips

Verify compressor type before ordering; this hose assembly is listed for vehicles with a Delphi compressor. Confirm the P-nut fitting style, switch port provision, and R134a system requirements against the original part before installation. Replace any disturbed seals during service and evacuate and recharge the system according to factory A/C procedures after installation.

Quality Assurance

Four Seasons manufactures OE replacement HVAC components for service and repair applications. Part number 56414 is built to match the listed vehicle fitment and original hose assembly configuration for the specified Chevrolet Silverado and GMC Sierra trucks.

This part fits 8 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelLitersCylindersPositionNotes
2002ChevroletSilverado 2500 HD8.1LV8N/Aw/ Delphi Compressor; Hose Assembly
2002ChevroletSilverado 35008.1LV8N/Aw/ Delphi Compressor; Hose Assembly
2002GMCSierra 2500 HD8.1LV8N/Aw/ Delphi Compressor; Hose Assembly
2002GMCSierra 35008.1LV8N/Aw/ Delphi Compressor; Hose Assembly
2001ChevroletSilverado 2500 HD8.1LV8N/Aw/ Delphi Compressor; Hose Assembly
2001ChevroletSilverado 35008.1LV8N/Aw/ Delphi Compressor; Hose Assembly
2001GMCSierra 2500 HD8.1LV8N/Aw/ Delphi Compressor; Hose Assembly
2001GMCSierra 35008.1LV8N/Aw/ Delphi Compressor; Hose Assembly
Directly replaces or cross-references 17 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Dorman - HELP — 56414UAC — HA11377C2829284086357046697813581531207153426737813585731104111564141570873819188041A72414CWK781358HA11377T56414