Four Seasons 158551 A/C Compressor

Overview of Four Seasons New Compressor 158551

The Four Seasons New Compressor 158551 is designed specifically for Mercedes-Benz SL55 AMG and SL500 models. This A/C compressor is engineered to meet the exacting standards required for efficient air conditioning system performance using R134a refrigerant.

• Compatible with R134a refrigerant and Pag 46 oil
• Includes oil pre-filled for immediate installation
• Features a 6-groove serpentine pulley for reliable belt engagement
• Comes with clutch assembly included, clutch max diameter 3.75 inches
• 12-volt coil with 1 wire lead terminal type (pin)
• Mounting type: 3 tangent, one on rear head
• Includes O-rings (part numbers 24608 and 24610) for proper sealing
• New compressor type TRS105, designed for Sanden/Sankyo systems

Four Seasons New Compressor Product Line Details

The Four Seasons New Compressor line offers brand-new, factory-quality A/C compressors designed to replace worn or damaged units. This product line focuses on delivering reliable performance and compatibility with original equipment specifications. The 158551 model is part of this line, ensuring it meets the standards expected for Mercedes-Benz SL55 AMG and SL500 air conditioning systems.

Technical Description and Features

This Four Seasons A/C compressor 158551 is engineered for vehicles using R134a refrigerant and compatible with Pag 46 refrigerant oil, which is included pre-filled in the unit. The compressor features a 6-groove serpentine pulley with a diameter of 3.75 inches, matching the OEM pulley size for proper belt alignment and tension. The clutch assembly is included, with a maximum diameter of 3.75 inches and a coil voltage of 12 volts, utilizing a pin terminal type with a single wire lead for electrical connection. The mounting system uses a 3 tangent bolt pattern, with one bolt on the rear head, ensuring secure installation. Additionally, the compressor comes with two O-rings (part numbers 24608 and 24610) to maintain a proper seal and prevent refrigerant leaks.

Applications and Common Issues Addressed

• Replacement for failing or noisy A/C compressors in Mercedes-Benz SL55 AMG and SL500
• Restores proper air conditioning cooling performance
• Eliminates clutch engagement problems and pulley belt slippage
• Resolves refrigerant leaks due to worn seals or O-rings
• Addresses compressor failure caused by internal wear or electrical coil issues

Installation Notes and Tips

Before installation, verify compatibility with your Mercedes-Benz SL55 AMG or SL500 model year. The compressor comes pre-filled with oil, but ensure the system is properly evacuated and recharged with R134a refrigerant. Mounting hardware is not included, so retain or source OEM bolts for secure attachment. Check the serpentine belt condition and replace if worn to ensure optimal pulley performance. Electrical connections use a pin terminal with a single wire lead; confirm proper wiring to avoid coil damage.

Quality Assurance and Warranty

The Four Seasons New Compressor 158551 is a new, factory-quality replacement part designed to meet OEM specifications. It undergoes rigorous quality control to ensure reliable operation in Mercedes-Benz SL55 AMG and SL500 vehicles. Warranty coverage details should be confirmed at the point of purchase, as they may vary by distributor or retailer.