20377023 | Genuine OEM Volvo SS1200P 12V Air Dryer Assembly

The Volvo SS1200P Air Dryer Assembly, part number 20377023, is designed to remove moisture and contaminants from compressed air in compatible heavy-duty truck pneumatic systems. Its coalescing desiccant cartridge helps protect air-brake components from moisture-related corrosion and contamination. Verify the exact air dryer configuration and vehicle fitment before ordering.

PRODUCT INFORMATION

• Part Number: 20377023

• Brand: Volvo

• Model: SS1200P / System Saver 1200P

• Part Name: Air Dryer Assembly

• Component Type: Compressed-Air Dryer

• Voltage: 12V

• Cartridge Type: Coalescing desiccant

• System: Pneumatic Air Brake System

• Condition: Verify the actual condition of the item before purchase.

APPLICATIONS

The Volvo SS1200P air dryer is listed for compatible heavy-duty truck air systems. Catalogs identify applications involving Volvo and certain other commercial truck makes, but exact fitment depends on the vehicle, air-system configuration, electrical connection, mounting, and port arrangement.

Confirm compatibility for part number 20377023 using the vehicle VIN and an applicable OEM parts catalog. Do not rely on appearance or a broad vehicle-brand match alone.

FUNCTION

The air dryer removes moisture and contaminants from compressed air supplied by the vehicle's compressor before the air reaches downstream pneumatic components. The coalescing cartridge helps separate contaminants, while the dryer assembly supports the delivery of cleaner, drier air to the braking system.

COMMON SIGNS OF AIR DRYER FAILURE

A worn, damaged, or failing air dryer may cause symptoms such as:

• Excessive moisture in air tanks.

• Water or contamination in pneumatic air lines.

• Abnormal or frequent purge cycles.

• Air leaks around the dryer assembly.

• Moisture-related corrosion or freezing in pneumatic components.

• Reduced performance of the compressed-air system.

These symptoms may also be caused by compressor faults, air leaks, or other pneumatic system problems. Diagnose the complete system before replacing the air dryer.

WHY REPLACE A VOLVO AIR DRYER?

A properly functioning air dryer helps protect valves, brake chambers, and other pneumatic components by reducing moisture and contamination in compressed air. Replacing a faulty assembly with the correct specification can help maintain air quality and support dependable air-brake system operation.

FITMENT INFORMATION

Before purchasing Volvo 20377023, compare the part number with the existing air dryer. Verify the 12V specification, dryer model, cartridge type, mounting arrangement, electrical connector, and air-port configuration.

Use the vehicle VIN and OEM parts information to confirm fitment. Related or cross-reference numbers do not automatically guarantee interchangeability.

GENUINE VOLVO PART

This listing identifies the component as a Volvo SS1200P 12V air dryer assembly, part number 20377023. Verify the manufacturer's markings, authenticity, condition, and included components against the actual product and its supporting documentation before publishing or purchasing.