Home› HVAC > A/C Condenser and Evaporator› Four Seasons 54940 A/C Evaporator Core - Front
Four Seasons 54940 A/C Evaporator Core - FrontOE Quality 60-Day Returns
Part #: 54940

Four Seasons 54940 A/C Evaporator Core - Front

Evaporator Core, Front
5 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
$112.51Free Shipping
Free ShippingNo Cost to Continental U.S.
Free Returns*Wrong fit? No cost
60-Day ReturnsMoney back guarantee
*Free return shipping only qualifies if our fitment verification tool is used.
In Stock · Ready To Ship Most orders ship same-day if ordered before 1pm CST.
OE Direct Replacement — Bolt-on fit, no modifications needed
Evaporator Core, Front
Fitment: Chevrolet, GMC, and Oldsmobile, Trailblazer, Trailblazer EXT, Envoy, Envoy XL, and Bravada
Easy Returns — Return within 60 days for a full refund
Fast Shipping — Most orders ship same business day before 1pm CST
Not what you need? See all A/C Evaporator Core options

Overview of Four Seasons Evaporator Core 54940

The Four Seasons Evaporator Core 54940 is designed to restore efficient cooling performance in your vehicle's HVAC system. Engineered for select Chevrolet, GMC, and Oldsmobile models, this aluminum evaporator core ensures reliable operation and proper fitment.

  • Core dimensions: 11.125 inches width, 9.9375 inches height, 2.875 inches depth
  • Plate & fin type construction for effective heat exchange
  • Block fitting inlet and outlet for secure connections
  • Includes slimline washer O-rings (part numbers 24402 and 24404) for leak prevention
  • Compatible with Chevrolet Bravada, GMC Envoy, Envoy XL, Trailblazer, and Trailblazer EXT

Detailed Product Description

The Four Seasons Evaporator Core 54940 features a durable aluminum construction with plate and fin design, providing efficient heat absorption and transfer within the vehicle's air conditioning system. Measuring 11-1/8 inches wide, 9-15/16 inches high, and 2-7/8 inches deep, this core fits precisely in the HVAC housing of compatible models. The block fitting inlet and outlet ensure a secure and leak-resistant connection to the refrigerant lines. Included slimline washer O-rings (24402 and 24404) help maintain a tight seal, reducing the risk of refrigerant leaks and system failure.

This evaporator core is part of the Four Seasons Evaporator Core product line, which focuses on delivering reliable replacement components engineered to meet or exceed OEM specifications. The line emphasizes quality materials and precise fitment to support proper HVAC system function and longevity.

Common Applications and Issues Addressed

  • Restores cooling efficiency in Chevrolet Bravada and GMC Envoy A/C systems
  • Replaces leaking or clogged evaporator cores causing reduced airflow or unpleasant odors
  • Solves refrigerant leaks due to worn or damaged evaporator cores
  • Addresses inconsistent cabin temperature control in Trailblazer and Trailblazer EXT models
  • Eliminates moisture buildup and fogging inside the vehicle HVAC system

Installation Notes and Tips

  • Ensure compatibility with your specific vehicle make and model before installation
  • Inspect and replace O-rings to prevent refrigerant leaks during reassembly
  • Handle the evaporator core carefully to avoid damage to the aluminum fins
  • Flush the HVAC system to remove debris before installing the new core
  • Professional installation is recommended due to the complexity of HVAC system components

Quality Assurance and Warranty

Four Seasons manufactures the Evaporator Core 54940 to meet stringent quality standards, using corrosion-resistant aluminum and precision engineering. The product includes necessary O-rings to ensure a proper seal and system integrity. While specific warranty details may vary, Four Seasons typically offers coverage against defects in materials and workmanship to support customer confidence in replacement HVAC components.

BrandFour Seasons
Part Number54940
PositionEvaporator Core, Front
Core Depth Fraction2-7/8
Core Depth MM73.025
Core Height Fraction9-15/16
Core Height MM252.412
Core Width Fraction11-1/8
Core Width MM282.575
Depth2.875
DescriptionEvaporator Cores
Height9.9375
Inlet Fitting TypeBlock Fitting
MaterialAluminum
O-Ring A Number/Desc[24402] / Slimline Washer
O-Ring B Number/Desc[24404] / Slimline Washer
Outlet Fitting TypeBlock Fitting
TypePlate & Fin
Width11.125

This part fits 5 vehicles. Search below:

YearMakeModelPositionNotes
2002ChevroletTrailblazerFrontExtended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core
2002ChevroletTrailblazer EXTFrontExtended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core
2002GMCEnvoyFrontExtended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core
2002GMCEnvoy XLFrontExtended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; Evaporator Core
2002OldsmobileBravadaFrontExtended labor, specialized tools, and expertise may be necessary for replacement of this A/C Evaporator Core.; 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:

1010035156269627333962885324711990524873505249572054940706939770211A88532EV62696PFCT54940

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

Related Articles