HomeHVAC > Hoses and PipesFour Seasons 56658 A/C Refrigerant Discharge / Suction Hose Assembly
Part #: 56658

Four Seasons 56658 A/C Refrigerant Discharge / Suction Hose Assembly

Hose Assembly
8 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: Chevrolet, Oldsmobile, and Pontiac, Venture, Silhouette, Montana, and Trans Sport
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Reliable A/C Refrigerant Hose Assembly for Oldsmobile and Pontiac

The Four Seasons Hose Assembly part number 56658 is designed specifically for Oldsmobile Montana, Pontiac Silhouette, and Pontiac Trans Sport models. This A/C refrigerant discharge and suction hose assembly ensures proper air conditioning system function by maintaining secure refrigerant flow with durable materials and precise fittings.

Key Features of Four Seasons Hose Assembly 56658

  • Constructed from aluminum and rubber for durability and flexibility
  • Compatible with R134a refrigerant type
  • Includes sealing washers and multiple O-rings for leak prevention
  • Equipped with a P-nut fitting on both discharge and suction ends
  • Features a muffler and manifold for noise reduction and system efficiency
  • Includes a switch service port but does not include fittings or brackets
  • OEM replacement part ensuring proper fit and function

About the Four Seasons Hose Assembly Product Line

The Four Seasons Hose Assembly line focuses on providing high-quality HVAC hoses and pipes designed to meet or exceed original equipment specifications. This product line emphasizes durability and precise fitment, making it suitable for maintaining or restoring the air conditioning systems in vehicles like the Oldsmobile Montana and Pontiac Silhouette. Part number 56658 is a direct replacement that integrates seamlessly with existing system components.

Detailed Product Description

This A/C refrigerant discharge and suction hose assembly combines aluminum and rubber materials to withstand pressure and temperature variations within the air conditioning system. It is designed for use with R134a refrigerant and includes essential sealing components such as two sealing washers (part number 24354) and three O-rings (part numbers 24628 and 24642) to ensure a tight, leak-free connection. The assembly features P-nut fittings on both the discharge and suction ends, facilitating secure attachment to the vehicle’s HVAC system. Additionally, the included muffler and manifold help reduce noise and improve system performance. While the assembly includes a switch service port, fittings and brackets are not included, so verify compatibility with your vehicle’s existing hardware.

Common Issues Addressed by This Hose Assembly

  • Leaking refrigerant due to worn or damaged hoses
  • Reduced A/C performance caused by faulty discharge or suction lines
  • Noise and vibration in the HVAC system from missing mufflers
  • System contamination from compromised seals or O-rings
  • Failure of OEM hoses leading to air conditioning system inefficiency

Installation Notes and Tips

  • Ensure the vehicle is compatible: Oldsmobile Montana, Pontiac Silhouette, and Pontiac Trans Sport models
  • Check that all included O-rings and sealing washers are properly seated to prevent leaks
  • Use appropriate tools to tighten P-nut fittings without over-torquing
  • Verify the presence of the switch service port and connect as needed
  • Inspect existing brackets and fittings, as this assembly does not include them

Quality Assurance and Warranty

Four Seasons Hose Assembly part number 56658 is an OEM replacement part manufactured to meet original equipment standards. It includes all necessary sealing components to ensure reliable operation. While specific warranty details are not provided here, Four Seasons products typically come with manufacturer-backed quality assurance to support durability and performance in automotive HVAC applications.

BrandFour Seasons
Part Number56658
PositionHose Assembly
Bracket?w/o Bracket
Discharge End StyleP-Nut Fitting
Discharge End TypeP-Nut Fitting
Fittings IncludedNot Included
Friction Material Attachmentw/ Switch Port
Gasket Or Seal IncludedIncluded
Manifold?Yes
MaterialAluminum / Rubber
Muffler?w/ Muffler
O-Ring A Number/Desc[24354] / Sealing Washer
O-Ring B Number/Desc[24628] / Green O-Ring
O-Ring C Number/Desc[24642] / Green O-Ring
O-Rings Included?Included
O.E. Replacement?Yes
Refrigerant TypeR134a
Service Port TypeR134-A Quick Disconnect
Service Port?w/o Service Port
Suction End StyleP-Nut Fitting
Suction End TypeP-Nut Fitting
Switch Included?Not Included
TypeDischarge & Suction Line

This part fits 8 vehicles. Search below:

YearMakeModelPositionNotes
2000OldsmobileSilhouetteN/A1st Design; w/o Rear AC; O-Ring Fitting at Accumulator End; Hose Assembly
2000PontiacMontanaN/A1st Design; w/o Rear AC; O-Ring Fitting at Accumulator End; Hose Assembly
1999OldsmobileSilhouetteN/ARear A/C not included in this assembly.; Hose Assembly
1999PontiacMontanaN/ARear A/C not included in this assembly.; Hose Assembly
1998OldsmobileSilhouetteN/ARear A/C not included in this assembly.; Hose Assembly
1998PontiacTrans SportN/ARear A/C not included in this assembly.; Hose Assembly
1997OldsmobileSilhouetteN/ARear A/C not included in this assembly.; Hose Assembly
1997PontiacTrans SportN/ARear A/C not included in this assembly.; 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:

102786121041947611156658153085819213205282600344703464214378124948115795173456658570449704678781249A72600ACD1530858CWK781249HA10441HA10441CT56658

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