HomeHVAC > A/C Accumulator / Receiver DrierFour Seasons 33118 A/C Accumulator
Part #: 33118

Four Seasons 33118 A/C Accumulator

Accumulator
⚙️ 46 vehicles fit this part
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OE Direct Replacement — Bolt-on fit, no modifications needed
📦Accumulator
🚗Fitment: Chevrolet and GMC, Express 1500, Express 2500, Express 3500, Savana 1500, Savana 2500, Savana 3500, P30, P3500, and P20
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Overview of Four Seasons Accumulator 33118

The Four Seasons Accumulator 33118 is designed to maintain optimal performance in your vehicle's air conditioning system. Engineered for Chevrolet and GMC vans, this A/C accumulator ensures efficient refrigerant flow and moisture removal, helping to protect your HVAC components.

  • Compatible with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500, P20, P30, P3500 models
  • Body diameter of 3.5 inches (88.9 mm) and length of 9 inches (228.6 mm)
  • Constructed from durable aluminum material
  • Features female o-ring inlet fitting (5/8") and male insert o-ring outlet fitting (5/8")
  • Includes a switch service port with a 0.472 inch (12 mm) diameter
  • Meets or exceeds OEM specifications for reliable fit and function

Four Seasons Accumulator Product Line Details

The Four Seasons Accumulator product line focuses on providing complete A/C accumulator units that integrate seamlessly with vehicle HVAC systems. This line is designed to meet OEM standards, offering components such as service ports and switch ports to facilitate maintenance and diagnostics. The 33118 model exemplifies this approach with its aluminum construction and precise fitting specifications.

Detailed Product Description

This A/C accumulator from Four Seasons features a 3.5-inch diameter and 9-inch length aluminum body, providing durability and corrosion resistance. The inlet fitting uses a female o-ring design with a 5/8 inch diameter, while the outlet fitting is a male insert o-ring type, also 5/8 inch. Both inlet and outlet threads are sized M27x2.000, ensuring a secure connection. The unit includes a switch port with a 0.472 inch diameter to accommodate system pressure monitoring. It comes with green o-rings ([24676] and [24612]) to ensure proper sealing. Note that mounting hardware is not included with this part.

Common Applications and Issues Addressed

  • Prevents moisture and debris from entering the A/C system
  • Helps maintain proper refrigerant flow and pressure
  • Protects the compressor from damage caused by liquid refrigerant
  • Supports efficient air conditioning performance in Chevrolet Express and GMC Savana vans
  • Resolves issues related to A/C system leaks or pressure irregularities

Installation Notes and Tips

  • Ensure compatibility with Chevrolet Express 1500, 2500, 3500 and GMC Savana 1500, 2500, 3500, P20, P30, P3500 models before installation
  • Use proper tools to avoid damaging the female and male o-ring fittings
  • Replace all o-rings with the included green o-rings to maintain system integrity
  • Verify that the switch port is properly connected for accurate system monitoring
  • Mounting hardware is not included; use OEM or equivalent fasteners for secure installation

Quality Assurance and Warranty

The Four Seasons Accumulator 33118 meets or exceeds OEM specifications, ensuring reliable performance and fitment. Manufactured from aluminum for durability and corrosion resistance, this part supports long-term operation of your vehicle's A/C system. Warranty details should be confirmed with the product documentation or supplier.

BrandFour Seasons
Part Number33118
PositionAccumulator
Body Diameter3.500
Body Length9.000
DescriptionAccumulators
Dia. MM88.900
Friction Material Attachmentw/ Service Port
Inlet Fitting Diameter5/8
Inlet Fitting TypeFemale O-Ring
Inlet Thread SizeM27x2.000
Length MM228.600
MaterialAluminum
Meets / Exceeds OEM?Yes
Mounting Hardware?Not Included
O-Ring A Number/Desc[24676] / Green O-Ring
O-Ring B Number/Desc[24612] / Green O-Ring
Outlet Fitting TypeMale Insert O-Ring
Outlet Fraction5/8
Outlet Thread SizeM27x2.000
StyleComplete Unit
Switchw/ Switch Port
Switch Port Dia. IN0.472
Switch Port Dia.MM12.000
TypeAccumulator

This part fits 46 vehicles. Search below:

YearMakeModelPositionNotes
1998ChevroletExpress 1500N/Aw/ Female Inlet Fitting; Accumulator
1998ChevroletExpress 2500N/Aw/ Female Inlet Fitting; Accumulator
1998ChevroletExpress 3500N/Aw/ Female Inlet Fitting; Accumulator
1998GMCSavana 1500N/Aw/ Female Inlet Fitting; Accumulator
1998GMCSavana 2500N/Aw/ Female Inlet Fitting; Accumulator
1998GMCSavana 3500N/Aw/ Female Inlet Fitting; Accumulator
1997ChevroletExpress 1500N/AAccumulator
1997ChevroletExpress 2500N/AAccumulator
1997ChevroletExpress 3500N/AAccumulator
1997ChevroletP30N/Aw/ Cab Equipment; Accumulator
1997GMCSavana 1500N/AAccumulator
1997GMCSavana 2500N/AAccumulator
1997GMCSavana 3500N/AAccumulator
1996ChevroletExpress 1500N/AAccumulator
1996ChevroletExpress 2500N/AAccumulator
1996ChevroletExpress 3500N/AAccumulator
1996ChevroletP30N/Aw/ Cab Equipment; Accumulator
1996GMCP3500N/AExcl. Motorhome; w/ Cab Equipment; Accumulator
1996GMCSavana 1500N/AAccumulator
1996GMCSavana 2500N/AAccumulator
1996GMCSavana 3500N/AAccumulator
1995ChevroletP30N/Aw/ Cab Equipment; Accumulator
1995GMCP3500N/Aw/ Cab Equipment; Accumulator
1994ChevroletP30N/Aw/ Cab Equipment; Accumulator
1994GMCP3500N/Aw/ Cab Equipment; Accumulator
1993ChevroletP30N/Aw/ Cab Equipment; Accumulator
1993GMCP3500N/Aw/ Cab Equipment; Accumulator
1992ChevroletP30N/AAccumulator
1991ChevroletP30N/AAccumulator
1990ChevroletP30N/AAccumulator
1989ChevroletP20N/AAccumulator
1989ChevroletP30N/AAccumulator
1988ChevroletP20N/AAccumulator
1988ChevroletP30N/AAccumulator
1987ChevroletP20N/AAccumulator
1987ChevroletP30N/AAccumulator
1986ChevroletP20N/AAccumulator
1986ChevroletP30N/AAccumulator
1985ChevroletP20N/AAccumulator
1985ChevroletP30N/AAccumulator
1984ChevroletP20N/AAccumulator
1984ChevroletP30N/AAccumulator
1983ChevroletP20N/AAccumulator
1983ChevroletP30N/AAccumulator
1982ChevroletP20N/AAccumulator
1982ChevroletP30N/AAccumulator

* 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:

014665200233118071832A111331181136812131541411281151583151652155471821636416364D17298019100091AMAC3311820798020850421652233118272467927248863311837050333723362434504583N49062500177510061520001526074703552705033746988968510A78504AC2397AC2397CAD10054AD10069CWK705033ED980RD0583RD1652CRD1652TT33118

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