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Four Seasons 54520 A/C Evaporator Core
Overview of Four Seasons Evaporator Core 54520
The Four Seasons Evaporator Core 54520 is designed for reliable HVAC performance in select Chevrolet, GMC, and Oldsmobile vehicles. This A/C evaporator core is engineered to meet the specific cooling needs of models like the Chevrolet S10 Blazer and GMC Jimmy, ensuring efficient air conditioning operation.
- Compatible with Chevrolet Bravada, Jimmy, S10, S10 Blazer, S15, S15 Jimmy, and Sonoma
- Part Number: 54520
- Core dimensions: 10.5" width x 6.75" height x 3.625" depth
- Plate & fin type aluminum construction for effective heat exchange
- Male insert o-ring inlet and outlet fittings with No. 12 outside diameter
- Includes green o-rings [24608] and [24612], plus orifice tube [38642]
Four Seasons Evaporator Core Product Line Details
The Evaporator Core line by Four Seasons focuses on delivering precise fit and function for vehicle HVAC systems. This product line utilizes plate and fin aluminum cores to provide consistent cooling performance and durability. The 54520 evaporator core is part of this line, designed to integrate seamlessly with factory HVAC components in compatible Chevrolet, GMC, and Oldsmobile models.
Technical Specifications and Features
The Four Seasons 54520 evaporator core features a plate and fin design constructed from aluminum, which offers efficient heat transfer and corrosion resistance. The core measures 10.5 inches in width, 6.75 inches in height, and 3.625 inches in depth (92.075 mm core depth). Both inlet and outlet fittings are male insert o-ring types, sized with a No. 12 outside diameter, ensuring secure connections within the HVAC system. Included are green o-rings [24608] and [24612] for sealing, along with an orifice tube [38642] to regulate refrigerant flow.
Applications and Common Issues Addressed
- Restores proper air conditioning cooling in Chevrolet S10 and GMC Jimmy models
- Replaces leaking or clogged evaporator cores causing reduced A/C performance
- Solves issues related to refrigerant leaks at inlet or outlet fittings
- Addresses corrosion or damage in evaporator core fins affecting airflow
- Improves HVAC system efficiency in Chevrolet Bravada and Oldsmobile vehicles
Installation Notes and Tips
Installation of the Four Seasons Evaporator Core 54520 requires careful handling to avoid damage to the aluminum fins. Ensure all old refrigerant is properly evacuated before removal. Replace all included o-rings to maintain a secure, leak-free seal. Verify compatibility with your specific vehicle model and HVAC system before installation. Professional installation is recommended to ensure proper fit and function.
Quality Assurance and Warranty
Four Seasons manufactures the 54520 evaporator core to meet OEM standards for durability and performance. The aluminum construction and included sealing components contribute to long service life. While specific warranty details are not provided here, Four Seasons products typically come with a limited warranty covering defects in materials and workmanship.
| Brand | Four Seasons |
| Part Number | 54520 |
| Position | Evaporator Core |
| Core Depth Fraction | 3-5/8 |
| Core Depth MM | 92.075 |
| Core Height Fraction | 6-3/4 |
| Core Height MM | 171.450 |
| Core Width Fraction | 10-1/2 |
| Core Width MM | 266.700 |
| Depth | 3.625 |
| Description | Evaporator Cores |
| Height | 6.750 |
| Inlet Fitting Type | Male Insert O-Ring |
| Material | Aluminum |
| O-Ring A Number/Desc | [24608] / Green O-Ring |
| O-Ring B Number/Desc | [24612] / Green O-Ring |
| O-Ring C Number/Desc | [38642] / Orifice Tube |
| Outlet Fitting Outside Diameter | No. 12 |
| Outlet Fitting Type | Male Insert O-Ring |
| Type | Plate & Fin |
| Width | 10.500 |
This part fits 51 vehicles. Search below:
| Year | Make | Model | Position | Notes |
|---|---|---|---|---|
| 1994 | GMC | Jimmy | N/A | Evaporator Core |
| 1994 | Oldsmobile | Bravada | N/A | Evaporator Core |
| 1993 | Chevrolet | S10 | N/A | Evaporator Core |
| 1993 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1993 | GMC | Jimmy | N/A | Evaporator Core |
| 1993 | GMC | Sonoma | N/A | Evaporator Core |
| 1993 | Oldsmobile | Bravada | N/A | Evaporator Core |
| 1992 | Chevrolet | S10 | N/A | Evaporator Core |
| 1992 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1992 | GMC | Jimmy | N/A | Evaporator Core |
| 1992 | GMC | Sonoma | N/A | Evaporator Core |
| 1992 | Oldsmobile | Bravada | N/A | Evaporator Core |
| 1991 | Chevrolet | S10 | N/A | Evaporator Core |
| 1991 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1991 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1991 | GMC | Sonoma | N/A | Evaporator Core |
| 1991 | Oldsmobile | Bravada | N/A | Evaporator Core |
| 1990 | Chevrolet | S10 | N/A | Evaporator Core |
| 1990 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1990 | GMC | S15 | N/A | Evaporator Core |
| 1990 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1989 | Chevrolet | S10 | N/A | Evaporator Core |
| 1989 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1989 | GMC | S15 | N/A | Evaporator Core |
| 1989 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1988 | Chevrolet | S10 | N/A | Evaporator Core |
| 1988 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1988 | GMC | S15 | N/A | Evaporator Core |
| 1988 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1987 | Chevrolet | S10 | N/A | Evaporator Core |
| 1987 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1987 | GMC | S15 | N/A | Evaporator Core |
| 1987 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1986 | Chevrolet | S10 | N/A | Evaporator Core |
| 1986 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1986 | GMC | S15 | N/A | Evaporator Core |
| 1986 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1985 | Chevrolet | S10 | N/A | Evaporator Core |
| 1985 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1985 | GMC | S15 | N/A | Evaporator Core |
| 1985 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1984 | Chevrolet | S10 | N/A | Evaporator Core |
| 1984 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1984 | GMC | S15 | N/A | Evaporator Core |
| 1984 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1983 | Chevrolet | S10 | N/A | Evaporator Core |
| 1983 | Chevrolet | S10 Blazer | N/A | Evaporator Core |
| 1983 | GMC | S15 | N/A | Evaporator Core |
| 1983 | GMC | S15 Jimmy | N/A | Evaporator Core |
| 1982 | Chevrolet | S10 | N/A | Evaporator Core |
| 1982 | GMC | S15 | N/A | Evaporator Core |
* 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.