No. The 1000002673 check valve fits select Dewalt, Porter-Cable, Craftsman, and Bostitch compressor models only. Common compatible models include D55167, D55168, D55146, and several related compressor systems. Always verify your exact model number before ordering.

Why is my Dewalt compressor leaking air from the check valve area?

This usually happens when the internal valve seal becomes worn or debris prevents the valve from closing fully. A faulty check valve can allow tank pressure to leak back toward the pump, causing continuous hissing and pressure loss after shutdown.

Can I replace the Dewalt 1000002673 check valve myself?

Many compressor owners replace this valve using standard hand tools. Before installation, disconnect electrical power, fully drain tank pressure, and apply proper thread sealant to prevent leaks. Ensure the replacement valve matches the original fitting size and orientation.

What does the Dewalt air compressor check valve do?

The check valve allows compressed air to flow from the pump into the air tank while preventing reverse airflow after the compressor shuts off. This helps maintain stored tank pressure, reduces startup strain on the motor, and supports efficient compressor operation.

Troubleshooting

The Dewalt 1000002673 Air Compressor Check Valve is designed to prevent compressed air from flowing backward into the pump assembly after the compressor shuts off. This OEM check valve helps maintain tank pressure, supports smooth motor restarting, and protects internal compressor components from pressure-related strain.

Common Symptoms:

Air leaks continuously after compressor shuts off.
Compressor struggles to restart under pressure.
Tank loses pressure while not in use.
Hissing sound near the check valve area.
Compressor cycles more often than normal

Compressor Leaks Air After Shutdown.

Quick Check: Listen for continuous hissing near the tank fitting after the motor stops.

Fix Suggestion: Remove and inspect the 1000002673 check valve for debris, worn seals, or sticking internal components. Replace the valve if it no longer seals properly.

Prevention Tip: Drain tank moisture frequently to reduce rust and debris buildup inside the valve body.

Compressor Will Not Restart Easily.

Quick Check: Check whether trapped air pressure remains in the discharge tube after shutdown.

Fix Suggestion: A failed check valve can allow pressure to push back toward the pump, increasing startup load, Replace the Dewalt check valve if the motor hums or stalls during restart attempts.

Prevention Tip: Keep intake filters clean to minimize excess pump strain and overheating.

Tank Slowly Loses Pressure Overnight.

Quick Check: Fill the tank completely and monitor pressure loss while the compressor is off.

Fix Suggestion: Inspect the 1000002673 valve for internal leakage or sealing damage. Replace worn valves that fail to hold tank pressure consistently.

Prevention Tip: Periodically inspect fittings and valve connections for vibration-related loosening.

Hissing Noise Around Valve Connection.

Quick Check: Apply soapy water around the check valve threads and fittings to identify leaks.

Fix Suggestion: Tighten fittings carefully and replace damaged thread sealant. If leakage continues, install a new OEM check valve assembly.

Prevention Tip: Avoid cross-threading brass fittings during installation.

Customer Experience: Several Dewalt compressor owners reported that replacing the 1000002673 check valve solved persistent pressure loss and nonstop hissing after shutdown. Some users also noticed easier motor startups and more stable tank pressure once the faulty valve was replaced.

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Dewalt 1000002673 Air Compressor Check Valve

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This Part Fits the Following Models (3)

Compressor Leaks Air After Shutdown.

Compressor Will Not Restart Easily.

Tank Slowly Loses Pressure Overnight.

Hissing Noise Around Valve Connection.

Customer Experience: Several Dewalt compressor owners reported that replacing the 1000002673 check valve solved persistent pressure loss and nonstop hissing after shutdown. Some users also noticed easier motor startups and more stable tank pressure once the faulty valve was replaced.