C3550 (Type 1) Porter Cable Compressor - Overview

Diagrams for C3550

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Ball Valve – Part Number: N072023
$22.04
Special Order
Ball Valve
Part #N072023
This genuine OEM replacement drain valve is designed for use with a variety of DeWalt air compressors. Made from durable metal, it allows you to easily open or close the valve with just a quarter turn, making tank draining quick and hassle-free. If your current valve is leaking or hard to turn, this part is a simple fix to keep your compressor running efficiently. It’s sold individually, and installation is straightforward—just be sure to check your model’s manual for proper fit and instructions.
Dip Stick – Part Number: A01978
No Longer Available
Dip Stick
Part #A01978
This is an authentic Porter Cable replacement part manufactured for use with air compressors. This dipstick is used to measure the oil inside the pump, and to seal the oil filler. The dipstick is sold as an individual replacement part.
Valve Check 3/4 NPT – Part Number: A19996
No Longer Available
Valve Check 3/4 NPT
Part #A19996
This is an authentic OEM authorized part which is specially designed for use with Porter Cable air compressors. Check valve lets pressurized air flow into the tank and prevents it from flowing back into the pump. When replacing this part make sure to unplug the air compressor and release the air from the tank. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this hardware. Keep in mind this high-quality valve is made of durable metal and is sold individually.
Gauge 2 OD 200PSI 1/ – Part Number: Z-D28274
No Longer Available
Gauge 2 OD 200PSI 1/
Part #Z-D28274
This is an original replacement part manufactured for use with Porter Cable air compressors. This gauge is used to measure the air pressure that is set by the regulator. This gauge is threaded and screws directly into the regulator and the gauge is sold individually.
Gauge 1.5OD 200PSI 1 – Part Number: Z-D28275
No Longer Available
Gauge 1.5OD 200PSI 1
Part #Z-D28275
Warning Label – Part Number: N021116
$7.44
Special Order
Warning Label
Part #N021116
Screw .250-20X3.470 – Part Number: D24472
No Longer Available
Screw .250-20X3.470
Part #D24472
Fitting 90DEG Elbow – Part Number: SSP-537
No Longer Available
Fitting 90DEG Elbow
Part #SSP-537
Elbow 1/4 NPT X 3/8 – Part Number: SSP-6429
No Longer Available
Elbow 1/4 NPT X 3/8
Part #SSP-6429
Plug Pipe 3/8 - 18 N – Part Number: SSP-486
No Longer Available
Plug Pipe 3/8 - 18 N
Part #SSP-486
Valve – Part Number: D20114
$16.74
Special Order
Valve
Part #D20114
This safety valve is a genuine replacement part manufactured for use with air compressors. If the compressor's pressure switch malfunctions, and does not turn the motor off when the amount of pressure is met, the safety valve will open to release the extra air pressure. The amount of pressure required to open the safety valve is set by tension of the spring inside the valve. The spring can wear out, and leave the valve open at a lower pressure than what is set to turn the switch off, and will not allow pressure to build inside the tank. This safety valve has a thread sealant pre-applied, so additional thread sealant is not required, the safety valve is sold individually.
ISOLATOR 3 POINT MOU – Part Number: ACG-19
$7.44
Special Order
ISOLATOR 3 POINT MOU
Part #ACG-19

Common Symptoms of the C3550

How this model fails, and the parts that fix it.

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Can't find this special screw used on many housings etc
4 of 6 people found this instruction helpful.
  • Tim from Tucson, AZ
  • Very Easy
  • 15 - 30 mins
Actually don't like using Torx bits because they are hard to center deep in the channel. I had misplaced these forcing me to order replacements.
My plan is to insert Torx bits before screwing in and using jb weld to secure the bit to the screw, giving me a hex head. Can't find this special screw with a hex head. This screw is called AGC-408 by craftsman.
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Broken ground on original plug
2 of 2 people found this instruction helpful.
  • Debra from PRESCOTT VLY, AZ
  • Really Easy
  • 15 - 30 mins
  • Screw drivers
Removed cover & old cord.
Replaced with new cord & replaced cover.
Works perfect.
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