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Four Seasons 33118 A/C Accumulator
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.
| Brand | Four Seasons |
| Part Number | 33118 |
| Position | Accumulator |
| Body Diameter | 3.500 |
| Body Length | 9.000 |
| Description | Accumulators |
| Dia. MM | 88.900 |
| Friction Material Attachment | w/ Service Port |
| Inlet Fitting Diameter | 5/8 |
| Inlet Fitting Type | Female O-Ring |
| Inlet Thread Size | M27x2.000 |
| Length MM | 228.600 |
| Material | Aluminum |
| 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 Type | Male Insert O-Ring |
| Outlet Fraction | 5/8 |
| Outlet Thread Size | M27x2.000 |
| Style | Complete Unit |
| Switch | w/ Switch Port |
| Switch Port Dia. IN | 0.472 |
| Switch Port Dia.MM | 12.000 |
| Type | Accumulator |
This part fits 46 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1998 | Chevrolet | Express 1500 | N/A | w/ Female Inlet Fitting; Accumulator |
| 1998 | Chevrolet | Express 2500 | N/A | w/ Female Inlet Fitting; Accumulator |
| 1998 | Chevrolet | Express 3500 | N/A | w/ Female Inlet Fitting; Accumulator |
| 1998 | GMC | Savana 1500 | N/A | w/ Female Inlet Fitting; Accumulator |
| 1998 | GMC | Savana 2500 | N/A | w/ Female Inlet Fitting; Accumulator |
| 1998 | GMC | Savana 3500 | N/A | w/ Female Inlet Fitting; Accumulator |
| 1997 | Chevrolet | Express 1500 | N/A | Accumulator |
| 1997 | Chevrolet | Express 2500 | N/A | Accumulator |
| 1997 | Chevrolet | Express 3500 | N/A | Accumulator |
| 1997 | Chevrolet | P30 | N/A | w/ Cab Equipment; Accumulator |
| 1997 | GMC | Savana 1500 | N/A | Accumulator |
| 1997 | GMC | Savana 2500 | N/A | Accumulator |
| 1997 | GMC | Savana 3500 | N/A | Accumulator |
| 1996 | Chevrolet | Express 1500 | N/A | Accumulator |
| 1996 | Chevrolet | Express 2500 | N/A | Accumulator |
| 1996 | Chevrolet | Express 3500 | N/A | Accumulator |
| 1996 | Chevrolet | P30 | N/A | w/ Cab Equipment; Accumulator |
| 1996 | GMC | P3500 | N/A | Excl. Motorhome; w/ Cab Equipment; Accumulator |
| 1996 | GMC | Savana 1500 | N/A | Accumulator |
| 1996 | GMC | Savana 2500 | N/A | Accumulator |
| 1996 | GMC | Savana 3500 | N/A | Accumulator |
| 1995 | Chevrolet | P30 | N/A | w/ Cab Equipment; Accumulator |
| 1995 | GMC | P3500 | N/A | w/ Cab Equipment; Accumulator |
| 1994 | Chevrolet | P30 | N/A | w/ Cab Equipment; Accumulator |
| 1994 | GMC | P3500 | N/A | w/ Cab Equipment; Accumulator |
| 1993 | Chevrolet | P30 | N/A | w/ Cab Equipment; Accumulator |
| 1993 | GMC | P3500 | N/A | w/ Cab Equipment; Accumulator |
| 1992 | Chevrolet | P30 | N/A | Accumulator |
| 1991 | Chevrolet | P30 | N/A | Accumulator |
| 1990 | Chevrolet | P30 | N/A | Accumulator |
| 1989 | Chevrolet | P20 | N/A | Accumulator |
| 1989 | Chevrolet | P30 | N/A | Accumulator |
| 1988 | Chevrolet | P20 | N/A | Accumulator |
| 1988 | Chevrolet | P30 | N/A | Accumulator |
| 1987 | Chevrolet | P20 | N/A | Accumulator |
| 1987 | Chevrolet | P30 | N/A | Accumulator |
| 1986 | Chevrolet | P20 | N/A | Accumulator |
| 1986 | Chevrolet | P30 | N/A | Accumulator |
| 1985 | Chevrolet | P20 | N/A | Accumulator |
| 1985 | Chevrolet | P30 | N/A | Accumulator |
| 1984 | Chevrolet | P20 | N/A | Accumulator |
| 1984 | Chevrolet | P30 | N/A | Accumulator |
| 1983 | Chevrolet | P20 | N/A | Accumulator |
| 1983 | Chevrolet | P30 | N/A | Accumulator |
| 1982 | Chevrolet | P20 | N/A | Accumulator |
| 1982 | Chevrolet | P30 | N/A | Accumulator |
* 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:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.