Black & Decker 5140117-89 Pressure Switch – Genuine OEM Replacement Air Compressor Pressure Switch
Part Number: 5140117-89
Category: Air Compressor Parts & Accessories → Pressure Switches
Type: Black & Decker 5140117-89 Pressure Switch – Genuine OEM Replacement Air Compressor Pressure Switch
The Black & Decker 5140117-89 Pressure Switch is a genuine OEM replacement pressure control switch designed for compatible Black & Decker, Porter-Cable, Craftsman, and DeVilbiss air compressors. This 120V, single-pole, 4-port pressure switch automatically controls compressor operation by turning the motor on when tank pressure falls below the cut-in setting and shutting it off when the cut-out pressure is reached. Manufactured to original equipment specifications, it provides a direct-fit replacement for worn or malfunctioning pressure switches, restoring safe, automatic compressor cycling and dependable air system performance.
Key Features & Benefits
- Part Number: 5140117-89
- Genuine OEM Black & Decker replacement part
- Replacement air compressor pressure switch
- 120V single-pole design
- 4-port pressure switch configuration
- Factory preset for approximately 120 PSI cut-in / 150 PSI cut-out
- Integrated unloader valve
- Automatically starts and stops compressor operation
- Direct-fit OEM replacement
- Manufactured to original equipment specifications
Technical Specifications
Part Number: 5140117-89
Manufacturer: Black & Decker / DeWalt
Product Type: Air Compressor Pressure Switch
Voltage: 120 Volt
Switch Type: Single Pole
Pressure Setting: Approximately 120 PSI Cut-In / 150 PSI Cut-Out
Ports: 4-Port
Integrated Unloader Valve: Yes
Application: Air Compressor Pressure Control
OEM Part: Yes
Quantity: Sold Individually
Replaces: 514011789, Z-D26612, ZD26612, P5140117-89
Compatible Applications
The Black & Decker 5140117-89 Pressure Switch fits numerous compatible air compressors, including:
Black & Decker
- 919-16555
- 919-16557
- 919-16558
- 919-16721
- 919-16722
- 919-16728
- 919-16731
- 919-16732
- 919-16734
- 919-16746
- 919-16870
- 919-16871
- 919-23754
- 919-72430
- 919-72450
- 919-72458
- 919-72459
- 919-72470
Porter-Cable
Fits numerous compatible Porter-Cable air compressors using OEM part 5140117-89.
Craftsman
Fits numerous compatible Craftsman air compressors using OEM part 5140117-89.
DeVilbiss
Fits numerous compatible DeVilbiss air compressors using OEM part 5140117-89.
Always verify your compressor model, type number, and original part number before ordering to ensure proper compatibility.
Function of the Pressure Switch
The 5140117-89 Pressure Switch is designed to:
- Automatically start the compressor when tank pressure drops
- Shut off the motor once maximum tank pressure is reached
- Maintain consistent operating pressure
- Operate the integrated unloader valve during shutoff
- Help prevent compressor over-pressurization
- Restore safe, automatic compressor cycling
Using a genuine OEM replacement pressure switch helps maintain proper compressor operation, efficient pressure regulation, and long-term reliability.
Common Signs Replacement Is Needed
Replace the pressure switch if you notice:
- Compressor will not start
- Compressor fails to shut off
- Incorrect cut-in or cut-out pressure
- Air leaking from the switch or unloader valve
- Burned or damaged electrical contacts
- Cracked switch housing
- Intermittent compressor cycling
A faulty pressure switch can prevent proper compressor operation and may lead to unsafe pressure conditions or motor damage.
Installation & Service Notes
Disconnect electrical power and completely drain the air tank before servicing the compressor.
Label all electrical wires before disconnecting them from the existing 5140117-89 Pressure Switch. Remove the pressure gauge, regulator assembly, pressure tube, safety valve, and mounting hardware as required to access the switch. Apply an appropriate thread sealant or PTFE thread-sealing tape to threaded fittings during installation, reconnect all air lines and wiring exactly as originally configured, and verify that all fittings are secure before restoring power. After installation, allow the compressor to cycle fully to confirm proper cut-in, cut-out, and unloader valve operation. Installation typically requires basic hand tools including open-end wrenches, a nut driver, and thread-sealing tape.
Important: Always verify your compressor model, voltage, pressure ratings, and original part number before ordering. Never adjust factory pressure settings unless specified by the equipment manufacturer. Use only genuine OEM replacement parts to maintain safe compressor operation and factory performance.
Maintenance Recommendations
- Periodically inspect the pressure switch for air leaks or damaged wiring.
- Keep electrical terminals clean and securely fastened.
- Drain moisture from the air tank after each use.
- Inspect the unloader valve and pressure tubing during routine maintenance.
- Replace damaged switches immediately if cycling becomes inconsistent.
- Use genuine OEM replacement parts to maintain factory fit, proper pressure regulation, and long-term air compressor reliability.
