The Wabco SS1800P air dryer, part number 4324130630 (also referenced as production number 432 421 021 0), is a 12-volt air dryer unit built around an external purge tank design for desiccant regeneration. It includes a turbo cutoff valve (TCV) and a 100-watt integrated heater with power harness. Port sizing: Supply (Port 1) and Delivery (Port 21) are both 0.50 in.-14 NPTF; Control (Port 4) and Purge Tank (Port 22) are both 0.25 in.-18 NPTF. Compatible cartridges are 4324109342 or 4324219222 (standard type). The replacement kit covers the air dryer base, cartridge, label, heater power harness, mounting hardware, and a pressure-controlled check valve. A genuine Wabco part, sold by Pro Gear and Transmission. Call us to confirm proper fit for your application.
Features
12-volt operation with 100-watt integrated heater and power harness
Turbo Cutoff Valve (TCV) included
External purge tank design for desiccant regeneration (Port 22: 0.25 in.-18 NPTF)
Supply and Delivery ports (Ports 1 and 21): 0.50 in.-14 NPTF
Control port (Port 4): 0.25 in.-18 NPTF
Compatible standard cartridges: 4324109342 or 4324219222
Tech Specs
- Model: SS1800P
- Voltage: 12V
- Heater: 100-Watt
- Turbo Cutoff Valve (TCV): Yes
- Cartridge Type: Standard
- Compatible Cartridges: 4324109342 or 4324219222
- Supply Port - Port 1: 0.50 in.-14 NPTF
- Delivery Port - Port 21: 0.50 in.-14 NPTF
- Control Port - Port 4: 0.25 in.-18 NPTF
- Purge Tank Port - Port 22: 0.25 in.-18 NPTF
- Purge Tank: External (used for desiccant regeneration)
- Production Number: 432 421 021 0
- OE Manufacturer: Wabco
- Manufacturer Part Number: 4324130630
- Replacement Kit Contents: Air Dryer Base, Cartridge, Label, Heater Power Harness, Mounting Hardware, Pressure Controlled Check Valve
