Four Seasons 64121 A/C Evaporator Core - Front
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Four Seasons
 Evaporator Core

Four Seasons 64121 A/C Evaporator Core - Front

Brand Four Seasons 64121
Position Front
Core Depth Fraction 1-7/8
Core Depth MM 48
Core Height Fraction 9-13/16
Core Height MM 250.825
Core Width Fraction 9-5/8
Core Width MM 245.000
Description Evaporator Cores
Type Parallel
Product line Evaporator Core
Fits Cadillac, Buick, Chevrolet, and GMC · 41 vehicles

Parallel design. Promotes efficient refrigerant flow through the evaporator core.

Evaporator core. A direct HVAC replacement for cooling-system service.

Cross-references Continental 64121, UAC EV9409192PFC and 774109 for the same application. See all 6.

$83.81Free shipping
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Free returns within 60 days if it doesn't fit when fitment is verified.
Not what you need? See all A/C Evaporator Core options

Four Seasons 64121 Evaporator Core Overview

The Four Seasons 64121 evaporator core is a parallel-flow A/C evaporator core built for front HVAC applications on select Buick, Cadillac, Chevrolet, and GMC vehicles. With a core width of 9-5/8 in. (245 mm), height of 9-13/16 in. (250.825 mm), and depth of 1-7/8 in. (48 mm), it is sized for direct replacement service in the factory air conditioning system.

Four Seasons Evaporator Core line parts are focused on replacement fit and OE-style serviceability for climate control repairs. This Four Seasons 64121 evaporator core supports front HVAC repair work where the original evaporator has leaked, restricted airflow, or lost cooling efficiency.

Key Features

  • Parallel-flow evaporator core design for efficient refrigerant heat transfer
  • Core dimensions: 9-5/8 in. width, 9-13/16 in. height, 1-7/8 in. depth
  • Metric dimensions: 245.000 mm width, 250.825 mm height, 48 mm depth
  • Direct-fit replacement for front HVAC evaporator applications
  • Fits select 2017-2024 Buick, Cadillac, Chevrolet, and GMC models
  • Four Seasons part number 64121 for catalog and service lookup

Detailed Description

Use this evaporator core when servicing the air conditioning system on vehicles such as the 2018-2024 Buick Enclave, 2017-2024 Cadillac XT5, 2022-2024 Cadillac XT6, 2024 Chevrolet Traverse Limited, 2018-2023 Chevrolet Traverse, 2017-2023 GMC Acadia, 2020-2021 Cadillac XT6, and 2017 GMC Acadia Limited. The Four Seasons 64121 evaporator core is a practical replacement for front HVAC repairs where the original core no longer maintains proper cabin cooling performance. This part cross-references UAC EV9409192PFC for the same application.

What It Helps Repair

  • Loss of cold air from the dash vents
  • Refrigerant leaks at the evaporator core
  • Restricted airflow through the HVAC case
  • Uneven cabin cooling performance
  • HVAC system service needs after core failure

Installation Notes and Tips

Verify the vehicle’s HVAC configuration, model year, and front evaporator application before ordering. Because evaporator replacement typically requires access to the HVAC case, confirm all sealing surfaces, refrigerant lines, and related components are inspected during service. Match the dimensions and fitment details to the original part number, including Four Seasons 64121, before installation.

Quality Assurance

Four Seasons supplies replacement HVAC components for service technicians and repair shops that need application-specific fitment and dimensional accuracy. This evaporator core is listed with OE-style interchange references for catalog matching and vehicle-specific repair planning.

Related reading

This part fits 41 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelSubmodelLitersCylindersPositionNotes
2024BuickEnclave———FrontEvaporator Core
2024CadillacXT5———N/AEvaporator Core
2024CadillacXT6———FrontEvaporator Core
2024ChevroletTraverse Limited———FrontEvaporator Core
2023BuickEnclave———FrontEvaporator Core
2023CadillacXT5———N/AEvaporator Core
2023CadillacXT6———FrontEvaporator Core
2023ChevroletTraverse———FrontEvaporator Core
2023GMCAcadia———FrontEvaporator Core
2022BuickEnclave———FrontEvaporator Core
2022CadillacXT5———N/AEvaporator Core
2022CadillacXT6———FrontEvaporator Core
2022ChevroletTraverse———FrontEvaporator Core
2022GMCAcadia———FrontEvaporator Core
2021BuickEnclave———FrontEvaporator Core
2021CadillacXT5———N/AEvaporator Core
2021CadillacXT6———N/AEvaporator Core
2021ChevroletTraverse———FrontEvaporator Core
2021GMCAcadia———FrontEvaporator Core
2020BuickEnclave———FrontEvaporator Core
2020CadillacXT5———N/AEvaporator Core
2020CadillacXT6———N/AEvaporator Core
2020ChevroletTraverse———FrontEvaporator Core
2020GMCAcadia———FrontEvaporator Core
2019BuickEnclave———FrontEvaporator Core
2019CadillacXT5———N/AEvaporator Core
2019ChevroletTraverse———FrontEvaporator Core
2019GMCAcadia———FrontEvaporator Core
2018BuickEnclave———FrontEvaporator Core
2018CadillacXT5———N/AEvaporator Core
2018ChevroletTraverse———FrontEvaporator Core
2018GMCAcadia———FrontEvaporator Core
2017CadillacXT5———N/AEvaporator Core
2017GMCAcadia—3.6LV6FrontEvaporator Core
2017GMCAcadiaSL2.5LL4FrontEvaporator Core
2017GMCAcadiaSLT2.5LL4FrontEvaporator Core
2017GMCAcadiaSLT3.6LV6FrontEvaporator Core
2017GMCAcadiaSLE2.5LL4FrontEvaporator Core
2017GMCAcadiaSLE3.6LV6FrontEvaporator Core
2017GMCAcadiaDenali3.6LV6FrontEvaporator Core
2017GMCAcadia Limited———FrontEvaporator Core
Directly replaces or cross-references 6 part numbers
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.
Continental — 64121UAC — EV9409192PFC7741098408112184751078A89179