CP503 (Type 3) Delta Compressor - Overview

Sections of the CP503

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Screw – Part Number: D29132
Screw
PartSelect #: PS10115994
Manufacturer #: D29132
  No Longer Available
Gauge Right Hand – Part Number: AC-0009-1
Gauge Right Hand
PartSelect #: PS10042281
Manufacturer #: AC-0009-1
  No Longer Available
Nut .375-16 UNC-2B H – Part Number: SSF-8080-ZN
Nut .375-16 UNC-2B H
PartSelect #: PS10050689
Manufacturer #: SSF-8080-ZN
  No Longer Available
Foot Molded Bumper – Part Number: AC-0364
Foot Molded Bumper
PartSelect #: PS10042363
Manufacturer #: AC-0364
  No Longer Available
Check Valve – Part Number: A19716
Check Valve
PartSelect #: PS10254691
Manufacturer #: A19716
  No Longer Available
SCREW #8-32X.375/.34 – Part Number: SUDL-9-1
SCREW #8-32X.375/.34
PartSelect #: PS12509515
Manufacturer #: SUDL-9-1
$5.95
  Special Order
SCREW – Part Number: A19123
SCREW
PartSelect #: PS12512659
Manufacturer #: A19123
$5.95
  Special Order
TUBE SEAL – Part Number: N044359
TUBE SEAL
PartSelect #: PS12522478
Manufacturer #: N044359
This replacement tube seal is designed to prevent air leaks and maintain efficient compressor performance. Sold individually, it fits securely onto the outlet tube that connects to the head of the com...
$5.95
  In Stock
VALVE SAFETY 150 .25 – Part Number: TIA-4150
VALVE SAFETY 150 .25
PartSelect #: PS12531517
Manufacturer #: TIA-4150
This is an authentic replacement part manufactured for use with Porter Cable air compressors. The safety valve is used to prevent the tank from overpressurizing by letting air out of the tank when a s...
$10.82
  Special Order
Connecting Rod Assembly – Part Number: N036518
Connecting Rod Assembly
PartSelect #: PS10049057
Manufacturer #: N036518
This genuine OEM replacement kit is designed for use with select air compressors and includes essential components to restore proper function. The kit comes with a piston rod, compression ring, cylind...
$76.34
  In Stock
Wheel Semi Pneu 8X2. – Part Number: D28123
Wheel Semi Pneu 8X2.
PartSelect #: PS10115976
Manufacturer #: D28123
This is a genuine item that is supplied by the original equipment manufacturer for use with air compressors and pressure washers. It is an identical replacement for a missing or faulty wheel that was ...
  No Longer Available
Gauge Left Hand – Part Number: Z-AC-0010-1
Gauge Left Hand
PartSelect #: PS10054519
Manufacturer #: Z-AC-0010-1
  No Longer Available

Questions And Answers for CP503

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Common Symptoms of the CP503

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Air leak
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Worn piston rod and sleeve
Disassemble plastic housing around compressor unit using appropriate tools. Remove the four bolts from the compressor head using a 5/16 nut driver. Carefully remove head assembly including airline. Remove bolt through rod bearing with Allen wrench.

Reassemble with new rod and piston assembly. Best to use blue locktite on bolt through rod bearing when reassembling. Make sure to torque all bolts to specs listed.
Parts Used:
Connecting Rod Assembly
  • Donald from BRYAN, TX
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Nutdriver, Screw drivers
7 of 11 people found this instruction helpful.
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Broken ground on original plug
Removed cover & old cord.
Replaced with new cord & replaced cover.
Works perfect.
Parts Used:
AC CORD
  • Debra from PRESCOTT VLY, AZ
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    15 - 30 mins
  • Tools:
    Screw drivers
2 of 2 people found this instruction helpful.
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The compressor was getting air
Put the seal in and it ran like a champ. No vacuum leak and it now runs again!
Parts Used:
TUBE SEAL
  • Linda from CARO, MI
  • Difficulty Level:
    Really Easy
  • Total Repair Time:
    30 - 60 mins
  • Tools:
    Screw drivers, Socket set, Wrench set
3 of 7 people found this instruction helpful.
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