ARB CO35SP Air Compressor Pressure Switch 1/4 NPT On 70 PSI Off 100 PSI Spare

Vehicle Fitment

• Universal - replacement pressure switch for ARB air compressors including CKMA12 (Twin Motor) and CKSA12 (Single Motor) onboard compressor models; also compatible with other 12V air compressor systems using a 1/4" NPT port

Fitment Notes

• Universal replacement part - verify your compressor uses a 1/4" NPT pressure switch port before ordering
• Electrical connection via 1/4" male spade terminals; confirm connector compatibility with your compressor wiring harness
• Designed for systems requiring 70 PSI on / 100 PSI off switching - not interchangeable with higher-pressure variants (e.g., 135/150 PSI)

Features

• Automatically activates the compressor when tank pressure drops to 70 PSI and shuts it off at 100 PSI
• 1/4" NPT threaded connection for secure, leak-free mounting in the compressor air circuit
• Electrical connection via 1/4" male spade terminals rated up to 5 amps
• Genuine ARB replacement part engineered to OEM specification for reliable performance
• Maintains consistent air pressure within the compressor system for tire inflation and Air Locker actuation
• Compact, durable construction designed for long service life in demanding 4WD environments

Specifications

• Thread Type: 1/4" NPT
• Electrical Connection: 1/4" male spade terminals
• Switch ON Pressure: 70 PSI (closes circuit - compressor activates)
• Switch OFF Pressure: 100 PSI (opens circuit - compressor shuts off)
• Current Rating: 5 amps max
• Compatible Compressors: ARB CKMA12, ARB CKSA12, and compatible 1/4" NPT-ported 12V compressors

Included Components

• 1x Replacement Pressure Switch (CO35SP)

Product Description

The ARB CO35SP is a genuine OEM replacement pressure switch designed for ARB onboard air compressors, including the CKMA12 twin motor and CKSA12 single motor models. It automatically cycles the compressor on at 70 PSI and off at 100 PSI, maintaining steady, consistent air pressure for tire inflation and Air Locker actuation. The 1/4" NPT thread provides a secure, leak-resistant connection, while the 1/4" male spade terminals allow direct integration with the compressor's existing wiring harness.

This is a direct OEM-specification spare, making it the correct replacement when an existing pressure switch fails or begins to cycle erratically. It is also compatible with other 12V air compressor systems that use a 1/4" NPT port and require a 70/100 PSI switching range. Verify your compressor's port size and pressure requirements before installation. This switch is not interchangeable with the higher-pressure 135/150 PSI variant used in certain other ARB compressor configurations.