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Four Seasons 54890 A/C Evaporator Core
| Brand | Four Seasons 54890 |
|---|---|
| Core Depth Fraction | 2-7/8 |
| Core Depth MM | 73.025 |
| Core Height Fraction | 11-1/8 |
| Core Height MM | 282.575 |
| Core Width Fraction | 9-7/8 |
| Core Width MM | 250.000 |
| Depth | 2.875 |
| Depth | 3.000 |
| Description | Evaporator Cores |
| Height | 11.000 |
| Height | 11.125 |
| Inlet Fitting Outside Diameter | No. 8 |
| Inlet Fitting Type | Block Fitting |
| Material | Aluminum |
| O-Ring A Number/Desc | [24402] / Slimline Washer |
| O-Ring B Number/Desc | [24403] / Slimline Washer |
| Outlet Fitting Type | Block Fitting |
| Type | Plate & Fin |
| Width | 9.875 |
| Product line | Evaporator Core |
| Fits | Chevrolet, Buick, and Pontiac · 34 vehicles |
Plate and fin design. Promotes efficient heat transfer in a compact evaporator core.
Aluminum construction. Lightweight material helps resist corrosion and supports reliable cooling performance.
Block fittings. Uses block-style inlet and outlet connections for a clean, secure install.
Cross-references Four Seasons 54890, Global Parts Distributors LLC 4711869 and TYC 97168 for the same application. See all 24.
Four Seasons 54890 Evaporator Core
Four Seasons 54890 is an aluminum A/C evaporator core built in a plate-and-fin design for HVAC service on select Chevrolet, Buick, and Pontiac applications. It is sized at 9-7/8 in. wide, 11-1/8 in. high, and 2-7/8 in. deep, with block-style inlet and outlet fittings for a direct-fit style replacement.
Compatible With 2004-2011 Chevrolet Impala, 2004-2007 Chevrolet Monte Carlo, 2004-2008 Pontiac Grand Prix, 2005-2009 Buick LaCrosse, and related applications listed below, Four Seasons 54890 supports restoration of cabin cooling performance in vehicles that use this evaporator core configuration. This part cross-references TYC 97168 and UAC EV939653PFC for the same application.
Key Features
- Brand: Four Seasons Evaporator Core
- Part number: 54890
- Aluminum construction for HVAC service applications
- Plate & fin evaporator core design
- Core dimensions: 9-7/8 in. width, 11-1/8 in. height, 2-7/8 in. depth
- Block fitting inlet and outlet connections
- Inlet fitting outside diameter: No. 8
- Includes slimline washer O-ring references for the listed fittings
Product Details
Four Seasons 54890 is an A/C evaporator core for vehicles that use a compact aluminum plate-and-fin core with block fittings. The core dimensions and fitting style are important for proper HVAC case fitment and refrigerant circuit connection, especially on Chevrolet Impala, Buick LaCrosse, Pontiac Grand Prix, and Chevrolet Monte Carlo platforms. If you are replacing a leaking or restricted evaporator core, this part number provides the physical specifications needed for a direct replacement search.
Four Seasons 54890 also appears in cross-reference listings for several aftermarket and OE-style replacement numbers, making it easier to match by application when servicing GM midsize and full-size sedan/coupe HVAC systems.
What It Helps Fix
- Refrigerant loss from an evaporator core leak
- Weak cabin cooling caused by a restricted or damaged core
- HVAC performance issues tied to internal corrosion or debris buildup
- Odor or moisture concerns related to a failing evaporator assembly
- Replacement needs after dash-level HVAC service on listed Chevrolet, Buick, and Pontiac models
Installation Notes
Evaporator replacement on several of these applications can require extended labor, specialized tools, and HVAC service experience. Confirm the core width, height, depth, and block fitting style before installation. For 2005 Buick Century and 2004 Buick Regal applications, the listing notes ATC (Automatic Temperature Control), and replacement may require considerable time, specialty tools, and training. Always verify the vehicle’s HVAC configuration against the part dimensions and fitment notes before beginning service.
Quality Assurance
Four Seasons is a recognized HVAC parts brand with broad coverage in A/C service components. This evaporator core is built to match the listed application requirements for fitment-focused replacement work.
Vehicle Fitment
- Fits 2014-2016 Chevrolet Impala Limited, N/A
- Fits 2012-2013 Chevrolet Impala, N/A
- Fits 2004-2011 Chevrolet Impala, N/A
- Fits 2005-2009 Buick Allure, N/A
- Fits 2005-2009 Buick LaCrosse, N/A
- Fits 2004-2008 Pontiac Grand Prix, N/A
- Fits 2004-2007 Chevrolet Monte Carlo, N/A
- Fits 2005 Buick Century, N/A
- Fits 2004 Buick Regal, N/A
| Year | Make | Model | Body Type | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|---|
| 2016 | Chevrolet | Impala Limited | — | — | — | N/A | Evaporator Core |
| 2015 | Chevrolet | Impala Limited | — | — | — | N/A | Evaporator Core |
| 2014 | Chevrolet | Impala Limited | — | — | — | N/A | Evaporator Core |
| 2013 | Chevrolet | Impala | — | — | — | N/A | Evaporator Core |
| 2012 | Chevrolet | Impala | — | — | — | N/A | Evaporator Core |
| 2011 | Chevrolet | Impala | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2010 | Chevrolet | Impala | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2009 | Buick | Allure | — | — | — | N/A | Evaporator Core |
| 2009 | Buick | LaCrosse | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2009 | Chevrolet | Impala | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2008 | Buick | Allure | — | — | — | N/A | Evaporator Core |
| 2008 | Buick | LaCrosse | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2008 | Chevrolet | Impala | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2008 | Pontiac | Grand Prix | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2007 | Buick | Allure | — | — | — | N/A | Evaporator Core |
| 2007 | Buick | LaCrosse | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2007 | Chevrolet | Impala | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2007 | Chevrolet | Monte Carlo | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2007 | Pontiac | Grand Prix | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2006 | Buick | Allure | — | — | — | N/A | Evaporator Core |
| 2006 | Buick | LaCrosse | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2006 | Chevrolet | Impala | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2006 | Chevrolet | Monte Carlo | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2006 | Pontiac | Grand Prix | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2005 | Buick | Allure | — | — | — | N/A | Evaporator Core |
| 2005 | Buick | Century | Sedan | 3.1L | V6 | N/A | w/ ATC (Automatic Temperature Control); Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2005 | Buick | LaCrosse | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2005 | Chevrolet | Impala | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2005 | Chevrolet | Monte Carlo | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2005 | Pontiac | Grand Prix | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2004 | Buick | Regal | Sedan | 3.8L | V6 | N/A | w/ ATC (Automatic Temperature Control); Evaporator replacement for this application may require considerable time, specialty tools, and training.; Evaporator Core |
| 2004 | Chevrolet | Impala | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2004 | Chevrolet | Monte Carlo | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
| 2004 | Pontiac | Grand Prix | — | — | — | N/A | Extended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core |
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