CP503 (Type 2) Delta Compressor - Overview

Sections of the CP503

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Keep searches simple, eg. "belt" or "pump".
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
Nipple .25NPT X 2.5 – Part Number: D24888
Nipple .25NPT X 2.5
PartSelect #: PS10044304
Manufacturer #: D24888
  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
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...
$77.89
  On Order
Oring 2.132/2.096id – Part Number: SSG-8169
Oring 2.132/2.096id
PartSelect #: PS10050740
Manufacturer #: SSG-8169
O-rings are made to contain thousands of PSI pressure by creating a seal between two or more parts. O-ring measurements are defined by the inside diameter and the thickness. rnrnThere are many cause...
  No Longer Available
Brush Set (2 Brushes) – Part Number: Z-D23825
Brush Set (2 Brushes)
PartSelect #: PS10054593
Manufacturer #: Z-D23825
Genuine Porter Cable replacement part Includes 2 Carbon Brushes with wire lead attached and installation instructions. • Worn brushes are frequently the cause of a poorly running motor. • Repla...
  No Longer Available
Gauge Right Hand – Part Number: AC-0009-1
Gauge Right Hand
PartSelect #: PS10042281
Manufacturer #: AC-0009-1
  No Longer Available
Foot Molded Bumper – Part Number: AC-0364
Foot Molded Bumper
PartSelect #: PS10042363
Manufacturer #: AC-0364
  No Longer Available
DRAIN VALVE – Part Number: N286039
DRAIN VALVE
PartSelect #: PS12508562
Manufacturer #: N286039
When using an air compressor, moisture naturally builds up inside the tank as air is compressed. If this water isn’t drained regularly, it can lead to internal rust and damage over time. That’s where ...
$12.20
  In Stock
BELT TIMING – Part Number: AC-0815
BELT TIMING
PartSelect #: PS12497302
Manufacturer #: AC-0815
This is an OEM part sourced directly from the manufacturer. The belt is commonly found in Craftsman air compressors. This part is made of flexible rubber, and is used to transfer power between the p...
$47.91
  Special Order
CLAMP HOSE .250 ID – Part Number: CAC-1206-1
CLAMP HOSE .250 ID
PartSelect #: PS12513333
Manufacturer #: CAC-1206-1
This replacement hose clamp is designed for use in various compressor models and serves an important role in securing hoses to specific parts of the unit. Whether you're performing maintenance or repl...
$7.44
  In Stock
VALVE PLATE ASSY – Part Number: N017592SV
VALVE PLATE ASSY
PartSelect #: PS12517182
Manufacturer #: N017592SV
Genuine Porter Cable replacement part, this item is sold individually. Head Gasket Sold Separately. This part is used in the all of the compressors models listed below. When air is pumped by the pisto...
$32.06
  Special Order

Common Symptoms of the CP503

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Air leak
Fixed by
these parts
Fixing Fixing Fixing
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No compressed air
Fixed by
these parts
Fixing
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Keep searches simple. Use keywords, e.g. "leaking", "pump", "broken" or "fit".
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
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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
4 of 8 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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