Four Seasons 54599 A/C Evaporator Core - Rear

Brand	Four Seasons 54599
Position	Rear
Core Depth Fraction	2-7/8
Core Depth MM	73.025
Core Height Fraction	8-7/8
Core Height MM	225.425
Core Width Fraction	13-3/8
Core Width MM	339.725
Depth	2.875
Description	Evaporator Cores
Height	8.875
Height	9.000
Inlet Fitting Outside Diameter	No. 8
Inlet Fitting Type	Female O-Ring
Material	Aluminum
O-Ring A Number/Desc	[24608] / Green O-Ring
O-Ring B Number/Desc	[24612] / Green O-Ring
Outlet Fitting Outside Diameter	No. 10
Outlet Fitting Type	Male Insert O-Ring
Type	Plate & Fin
Width	13.375
Width	13.500
Product line	Evaporator Core
Fits	Chevrolet and GMC · 59 vehicles

Aluminum construction. Helps resist corrosion while keeping weight down.

Plate and fin design. Promotes efficient airflow through the evaporator core.

Female O-ring inlet. Provides a secure, leak-resistant refrigerant connection.

Cross-references Four Seasons 6696N, Four Seasons 54599 and Global Parts Distributors LLC 4711424 for the same application. See all 35.

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Four Seasons 54599 Rear A/C Evaporator Core

Restore rear cabin cooling performance with the Four Seasons Evaporator Core, part number 54599. This aluminum plate-and-fin A/C evaporator core is built to match the listed dimensions and fitting style for rear HVAC service on select Chevrolet and GMC applications, including Suburban, Tahoe, Yukon, and Blazer models.

Key Features

Four Seasons Evaporator Core line for HVAC service
Part number 54599 for direct reference and ordering
Aluminum plate & fin construction
Core width: 13-3/8 in. (339.725 mm)
Core height: 8-7/8 in. (225.425 mm)
Core depth: 2-7/8 in. (73.025 mm)
Inlet fitting: No. 8 female O-ring
Outlet fitting: No. 10 male insert O-ring
Includes Green O-Ring references [24608] and [24612]

Product Details

The Four Seasons 54599 evaporator core is a rear HVAC replacement component for vehicles that use the specified aluminum plate-and-fin design and O-ring fitting layout. Its listed dimensions, inlet and outlet fitting types, and core measurements help support accurate service on rear air conditioning systems in 1994-1999 Chevrolet C1500 Suburban, C2500 Suburban, K1500 Suburban, K2500 Suburban, 1995-1999 Chevrolet Suburban 1500, 1994-1999 GMC C1500 Suburban, C2500 Suburban, K1500 Suburban, K2500 Suburban, 1995-1996 Chevrolet Tahoe, 1994-1996 GMC Yukon, and 1994 Chevrolet Blazer rear applications. This part cross-references TYC 97089 and UAC EV6796PFXC for the same application.

Common Problems This Part Can Address

Weak or uneven rear A/C cooling
Refrigerant leakage at the evaporator core
Corrosion or damage in the HVAC evaporator assembly
Reduced airflow through the rear climate system
Loss of cabin comfort from a failing rear evaporator

Installation Notes and Tips

Verify the core width, height, and depth against the original unit before installation. Confirm the inlet and outlet fitting types match the vehicle’s rear HVAC connections, and inspect the sealing surfaces and O-ring condition during service. Proper evacuation, leak checking, and recharge procedures are required after replacement. For fitment-specific service, this part is listed for rear evaporator core applications on Chevrolet and GMC Suburban, Tahoe, Yukon, and Blazer models within the stated year ranges.

Quality Assurance

Four Seasons supplies HVAC replacement components across a broad range of vehicle applications, and this evaporator core is built to the listed dimensional and fitting specifications for the referenced rear A/C systems. Part number 54599 is also identified by interchange references including 6696N and 1054599.

This part fits 59 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Position	Notes
1999	Chevrolet	C1500 Suburban	Rear	Evaporator Core
1999	Chevrolet	C2500 Suburban	Rear	Evaporator Core
1999	Chevrolet	K1500 Suburban	Rear	Evaporator Core
1999	Chevrolet	K2500 Suburban	Rear	Evaporator Core
1999	Chevrolet	Suburban 1500	Rear	Evaporator Core
1999	GMC	C1500 Suburban	Rear	Evaporator Core
1999	GMC	C2500 Suburban	Rear	Evaporator Core
1999	GMC	K1500 Suburban	Rear	Evaporator Core
1999	GMC	K2500 Suburban	Rear	Evaporator Core
1998	Chevrolet	C1500 Suburban	Rear	Evaporator Core
1998	Chevrolet	C2500 Suburban	Rear	Evaporator Core
1998	Chevrolet	K1500 Suburban	Rear	Evaporator Core
1998	Chevrolet	K2500 Suburban	Rear	Evaporator Core
1998	Chevrolet	Suburban 1500	Rear	Evaporator Core
1998	GMC	C1500 Suburban	Rear	Evaporator Core
1998	GMC	C2500 Suburban	Rear	Evaporator Core
1998	GMC	K1500 Suburban	Rear	Evaporator Core
1998	GMC	K2500 Suburban	Rear	Evaporator Core
1997	Chevrolet	C1500 Suburban	Rear	Evaporator Core
1997	Chevrolet	C2500 Suburban	Rear	Evaporator Core
1997	Chevrolet	K1500 Suburban	Rear	Evaporator Core
1997	Chevrolet	K2500 Suburban	Rear	Evaporator Core
1997	Chevrolet	Suburban 1500	Rear	Evaporator Core
1997	GMC	C1500 Suburban	Rear	Evaporator Core
1997	GMC	C2500 Suburban	Rear	Evaporator Core
1997	GMC	K1500 Suburban	Rear	Evaporator Core
1997	GMC	K2500 Suburban	Rear	Evaporator Core
1996	Chevrolet	C1500 Suburban	Rear	Evaporator Core
1996	Chevrolet	C2500 Suburban	Rear	Evaporator Core
1996	Chevrolet	K1500 Suburban	Rear	Evaporator Core
1996	Chevrolet	K2500 Suburban	Rear	Evaporator Core
1996	Chevrolet	Suburban 1500	Rear	Evaporator Core
1996	Chevrolet	Tahoe	Rear	Evaporator Core
1996	GMC	C1500 Suburban	Rear	Evaporator Core
1996	GMC	C2500 Suburban	Rear	Evaporator Core
1996	GMC	K1500 Suburban	Rear	Evaporator Core
1996	GMC	K2500 Suburban	Rear	Evaporator Core
1996	GMC	Yukon	Rear	Evaporator Core
1995	Chevrolet	C1500 Suburban	Rear	Evaporator Core
1995	Chevrolet	C2500 Suburban	Rear	Evaporator Core
1995	Chevrolet	K1500 Suburban	Rear	Evaporator Core
1995	Chevrolet	K2500 Suburban	Rear	Evaporator Core
1995	Chevrolet	Suburban 1500	Rear	Evaporator Core
1995	Chevrolet	Tahoe	Rear	Evaporator Core
1995	GMC	C1500 Suburban	Rear	Evaporator Core
1995	GMC	C2500 Suburban	Rear	Evaporator Core
1995	GMC	K1500 Suburban	Rear	Evaporator Core
1995	GMC	K2500 Suburban	Rear	Evaporator Core
1995	GMC	Yukon	Rear	Evaporator Core
1994	Chevrolet	Blazer	Rear	Evaporator Core
1994	Chevrolet	C1500 Suburban	Rear	Evaporator Core
1994	Chevrolet	C2500 Suburban	Rear	Evaporator Core
1994	Chevrolet	K1500 Suburban	Rear	Evaporator Core
1994	Chevrolet	K2500 Suburban	Rear	Evaporator Core
1994	GMC	C1500 Suburban	Rear	Evaporator Core
1994	GMC	C2500 Suburban	Rear	Evaporator Core
1994	GMC	K1500 Suburban	Rear	Evaporator Core
1994	GMC	K2500 Suburban	Rear	Evaporator Core
1994	GMC	Yukon	Rear	Evaporator Core
No rows match your filter.

Directly replaces or cross-references 35 part numbers

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

Four Seasons — 6696NFour Seasons — 54599Global Parts Distributors LLC — 4711424TYC — 97089UAC — EV6796PFXC59504106796156796156796X1569481569622367962883135987967067967202017701111054599014842001610005249679627304763770111111545995246408952481081A98313ACD156948CWK770111EP20062EV6796EV6796CEV6796PFCT54599YE6796