One Stop Solutions 4558 A/C Condenser

OE-Style A/C Condenser for Select GM Vans

This One Stop Solutions A/C condenser is built for direct replacement service on select 1994-1996 Chevrolet Lumina APV, Oldsmobile Silhouette, and Pontiac Trans Sport models. Part number 4558 is engineered around original equipment form and function to support proper refrigerant cooling and a clean underhood fit.

• Drop-in fit, form, and function for OE-style replacement
• Parallel flow aluminum construction for efficient heat transfer
• Extruded condenser tubes for structural integrity
• Louvered aluminum fins bonded with furnace-brazing for improved heat dissipation
• Individually pressure tested before release
• O-ring inlet and outlet fittings
• Multi-fit engineering to maintain appearance and fit

Built for Cooling Performance

OSC Premium New Automotive Condenser part number 4558 uses aluminum construction throughout the core to help transfer heat efficiently. The parallel flow design, 16 mm core thickness, 15 9/16 in. core width, and 27 11/16 in. core length are matched to the listed applications for a direct-fit replacement. This condenser is a practical choice for Chevrolet Lumina APV, Oldsmobile Silhouette, and Pontiac Trans Sport owners replacing a leaking, restricted, or damaged unit.

This part cross-references Four Seasons 35155 for the same application.

Common Problems This Part Can Address

• Refrigerant loss from a leaking condenser core
• Reduced A/C cooling caused by restricted airflow through the condenser
• Physical damage from road debris or corrosion
• Poor heat rejection that affects cabin air temperature
• Fitment issues from a failed original condenser on high-mileage vehicles

Installation Notes

Verify the O-ring inlet and outlet connections before installation and inspect the surrounding A/C system for contamination, damaged seals, or debris. Because the drier and oil cooler are not included, confirm your vehicle’s existing components are serviceable or replace them as needed during the repair. Always evacuate and recharge the system according to factory procedures after installation.

Quality Assurance

Each condenser is individually pressure tested and built with premium-grade aluminum materials. The furnace-brazed core construction and cycle, vibration, burst, and environmental testing support consistent performance in daily service. Part number 4558 is designed to meet OE-style fit and function for the listed GM van applications.