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O-ring - ACG-45:Porter Cable 360 View
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O-ring ACG-45

Part Number: ACG-45
Porter CableDeWALTDeVilbissBlack and DeckerBostitch
Availability: In Stock
Price: $4.73
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Product Information
Description:
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 causes for O-Ring failure. The most common among power tools are:

Extrusion and Nibbling – The O-ring has ragged, tattered edges. These are commonly caused by pressure spikes which shear off tiny “bites” from the o-ring, or caused by clearance gaps.

Abrasion – One or both sides of the o-ring appear rough and slightly flattened. Commonly caused by a contact surface that it too rough, contains grit or is too smooth to allow lubrication.

Over Compression – The O-ring is flattened on both sides and may have a “ring” split along its length. Commonly caused by excessive pressure or heat.

Heat Hardening – The O-ring has a pitted or cracked surface, and is often flattened on both sides. Caused by temperature exceeding o-ring capacity.
Weather/Ozone Cracking – The O-ring is covered in small surface cracks. Caused by exposure to ozone, UV rays and air pollution. Excessive seal stretching (greater that 5%) causes similar cracking.
Frequently Purchased With
Compatibility

This part is compatible with the following machines:

Porter Cable
CPLDC2540P Type 0 2.5 HP 4 Gallon Oil-Lube Air Compressor
CPLDC2540P Type 1 2.5 HP 4 Gallon Oil-Lube Air Compressor
CPLDC2540P Type 2 2.5 HP 4 Gallon Oil-Lube Air Compressor
CPLDC2540S Type 0 2.5 HP 4 Gallon Oil-Lube Air Compressor
CPLDC2540S Type 1 2.5 HP 4 Gallon Oil-Lube Air Compressor
CPLDC2540S Type 2 2.5 HP 4 Gallon Oil-Lube Air Compressor
CPLDC2541S Type 0 2.5 HP 4 Gallon Oil Lube Air Compressor
CPLDC2541S Type 1 2.5 HP 4 Gallon Oil Lube Air Compressor
CPFFR350 Type 1 A 3HP 4G SS PL 1STG 120 Compressor
CLFCP350 Type 0 A 2.5HP 4G SS DL 1S 120V Compressor
CLFCP350 Type 1 A 2.5HP 4G SS DL 1S 120V Compressor
CLFCP350 Type 1 A 2.5HP 4G SS DL 1S 120V Compressor
CFFC350A Type 0 A 3HP 4G SS PL 1STG 120 Compressor
CFFC350A Type 1 A 3HP 4G SS PL 1STG 120 Compressor
CFFC350B Type 0 A 3HP 4.5G BD PL 1STG 1 Compressor
CFFC350B Type 1 A 3HP 4.5G BD PL 1STG 1 Compressor
CFFC350C Type 1 A 3HP 4G PC PL 1STG 120 Compressor
CFFR350B Type 0 A 3HP 4.5G BD PL 1STG 1 Compressor
CFFR350B Type 1 A 3HP 4.5G BD PL 1STG 1 Compressor
CFFR350C Type 1 A 3HP 4G PC PL 1STG 120 Compressor
CF2800 Type 1 A 2HP 8G WB TV 1STG 120 Compressor
C2555 Type 1 A 2.5HP 4G PC DL 1STG 120 Compressor
C3555 Type 1 A 2.5HP 4.5G BD DL 1STG 1 Compressor
C5100 Type 1 A 4.5HP 20G HP PL 1STG 12 Compressor
C5101 Type 0 A 1.7HP 20G HP PL 1STG 12 Compressor
CPF6020-W Type 0 A 6.0HP 20G HP PL 1STG 12 Compressor
C6110 Type 0 150PSI 25 Gallon O/F Vertical Compressor
C2150 Type 0 150 PSI 4 Gallon Oil-Free Portable Air Compressor
C2150 Type 1 150 PSI 4 Gallon Oil-Free Portable Air Compressor
C3101 150 PSI 4.3 Gallon Oil-Free Side Stack Compressor
DeWALT
DeVilbiss
1WC94 Type 0 Construction Compressor
1WC94 Type 1 Construction Compressor
CF1540 Type 0 Hand-Carry Compressor
DAC-7128 Type 2 Hand-Carry Compressor
3JR71 Type 0 Workshop/Auto Compressor
3JR71 Type 1 Workshop/Auto Compressor
ACBF420 Type 0 Workshop/Auto Compressor
ACBF420 Type 1 Workshop/Auto Compressor
ACBF630 Type 0 Workshop/Auto Compressor
ACBF630 Type 1 Workshop/Auto Compressor
ACBF630 Type 2 Workshop/Auto Compressor
AF2520 Type 0 Workshop/Auto Compressor
AF320 Type 0 Workshop/Auto Compressor
AF320 Type 1 Workshop/Auto Compressor
AF320 Type 2 Workshop/Auto Compressor
AF3520 Type 0 Workshop/Auto Compressor
C5100 Type 0 Workshop/Auto Compressor
DF412 Type 2 Workshop/Auto Compressor
DF430 Type 2 Workshop/Auto Compressor
DF5020 Type 0 Workshop/Auto Compressor
EXF5020 Type 0 Workshop/Auto Compressor
IR500TVE60V Type 0 Workshop/Auto Compressor
IR500TVE60V Type 1 Workshop/Auto Compressor
IR500TVE60V Type 2 Workshop/Auto Compressor
IR500TVE60V Type 3 Workshop/Auto Compressor
IRC500TVE60V Type 0 Workshop/Auto Compressor
IRC500TVE60V Type 1 Workshop/Auto Compressor
IRC500TVE60V Type 2 Workshop/Auto Compressor
IRC500TVE60V Type 3 Workshop/Auto Compressor
IRFCTV660V Type 3 Workshop/Auto Compressor
IRFCTV660V Type 4 Workshop/Auto Compressor
IRFTV660V Type 3 Workshop/Auto Compressor
IRFTV660V Type 4 Workshop/Auto Compressor
PAFCTV560V Type 2 Workshop/Auto Compressor
PAFCTV560V Type 0 Workshop/Auto Compressor
PAFCTV560V Type 1 Workshop/Auto Compressor
PAFCTV660V Type 2 Workshop/Auto Compressor
PAFCTV660V Type 3 Workshop/Auto Compressor
PAFTV560V Type 0 Workshop/Auto Compressor
PAFTV560V Type 1 Workshop/Auto Compressor
PAFTV560V Type 2 Workshop/Auto Compressor
PAFTV660V Type 2 Workshop/Auto Compressor
PAFTV660V Type 3 Workshop/Auto Compressor
PAFTV660V Type 4 Workshop/Auto Compressor
PTFTV560V Type 0 Workshop/Auto Compressor
PTFTV560V Type 1 Workshop/Auto Compressor
PTFTV560V Type 2 Workshop/Auto Compressor
RA500TVE60V Type 0 Workshop/Auto Compressor
RA500TVE60V Type 1 Workshop/Auto Compressor
RA500TVE60V Type 2 Workshop/Auto Compressor
RA500TVE60V Type 3 Workshop/Auto Compressor
RAC500TVE60V Type 0 Workshop/Auto Compressor
RAC500TVE60V Type 1 Workshop/Auto Compressor
RAC500TVE60V Type 2 Workshop/Auto Compressor
RAC500TVE60V Type 3 Workshop/Auto Compressor
RAD500TVE60V-2 Type 0 Workshop/Auto Compressor
RAD500TVE60V-2 Type 1 Workshop/Auto Compressor
RAD500TVE60V-2 Type 2 Workshop/Auto Compressor
RAFCTV660V Type 3 Workshop/Auto Compressor
RAFCTV660V Type 4 Workshop/Auto Compressor
RAFTV660V Type 3 Workshop/Auto Compressor
RAFTV660V Type 4 Workshop/Auto Compressor
1WC95 Type 2 Workshop/Auto Compressor
EXFBC5020VP Type 1 Workshop/Auto Compressor
EXFBC5020VP Type 2 Workshop/Auto Compressor
EXFBC5520VP Type 0 Workshop/Auto Compressor
EXFBC5520VP Type 1 Workshop/Auto Compressor
EXFBC6020VP Type 0 Workshop/Auto Compressor
EXFBC6020VP Type 1 Workshop/Auto Compressor
F5030V Type 0 Workshop/Auto Compressor
FB5020VP Type 0 Workshop/Auto Compressor
FB5020VP Type 1 Workshop/Auto Compressor
FB5020VP Type 2 Workshop/Auto Compressor
FB5520VP Type 0 Workshop/Auto Compressor
FB5520VP-WK Type 0 Workshop/Auto Compressor
FB5520VP-WK Type 1 Workshop/Auto Compressor
FB5525VP Type 0 Workshop/Auto Compressor
FB5525VP Type 1 Workshop/Auto Compressor
HFB5020VP Type 0 Workshop/Auto Compressor
HFB5020VP Type 1 Workshop/Auto Compressor
HFB5020VP Type 2 Workshop/Auto Compressor
HFB5020VP Type 3 Workshop/Auto Compressor
HFB6025VP Type 0 Workshop/Auto Compressor
IRF5030V Type 0 Workshop/Auto Compressor
IRFB5020VP Type 0 Workshop/Auto Compressor
IRFB5020VP Type 1 Workshop/Auto Compressor
IRFB5020VP Type 2 Workshop/Auto Compressor
Expand the 150+ compatible machines
Products Compatibility

This item works with the following types of products:

  • • Compressor
Repair Guides
Watch the Repair Video for O-ring

Questions & Answers for O-ring


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Repair Instructions: Submitted by Customers Like You
1 of 1 people found this instruction helpful
Tool Type:
Compressor
Parts Used:
O-ring - ACG-45
Screw - AC-0798
O-ring - A03856
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Power Drill, Socket set, Torx drivers for cover, cobalt drill bits
Dewalt 200 PSI compressor would not build up pressure. After removing cover noted one of the four head bolts was broken and the o-ring was protruding a bit.
1. Removed plastic cover with torx driver bits.
2. Removed head cover by removing the 3 remaining bolts.
3. Drilled out broken bolt.
4. Replaced the two internal o-rings on either side of head cover.
5. Installed head cover using 4 bolts (used loctite to keep bolts from backing out during operation).
6. Re-installed cover.
7. Restarted compressor. No problems.
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Tool Type:
Compressor
Parts Used:
O-ring - ACG-45
Screw - AC-0798
O-ring - A03856
Repair Difficulty:
Medium
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Power Drill, Socket set, Adjustable Wrench, Tap and Die
Compressor head bolt failure
Disassemble
Drill broken bolts.
Tap aluminum casting to restore threads.
Replace o-rings.
Reassemble.
Test.
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Tool Type:
Compressor
Parts Used:
O-ring - ACG-45
Screw - AC-0798
O-ring - A03856
Valve Plate Assy - A09819SV
Repair Difficulty:
Easy
Time Spent Repairing:
More than 2 hours
Tools Used:
Power Drill, Socket set, Nutdriver, Adjustable Wrench
Head bolt for compressor broke.
1. Removed head
2. Drill out broke head bolt
3. Replaced valve body with new one and new gaskets
4. Reassembled compressor head using new head bolt
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Tool Type:
Compressor
Parts Used:
Screw .250-20x1.125 - SSF-927
O-ring - SSG-8156
O-ring - ACG-45
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Nutdriver, Torque Wrench
The compressor gasket broke
Removed all 4 bolts. 2 had their head broken off so the top part slid off exposing the shaft.
Used a vise grip to unscrew the broken bolts.
Replaced both gaskets and reassembled with new bolts.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Compressor
Parts Used:
O-ring - ACG-45
Screw - AC-0798
O-ring - A03856
Repair Difficulty:
Easy
Time Spent Repairing:
30-60 minutes
Tools Used:
Pliers, Power Drill, Socket set, Wrench Set, Nutdriver, None
Gasket pinched wouldn’t get up to proper pressure
Removed main cover
Removed casing torque screws
Removed 4 bolts holding compressor body- had to easy out broken bolt
Replaced both gaskets
Put back together and tested pressure
Works like new-$15 with postage saved me buying a new $400 compressor
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Tool Type:
Compressor
Parts Used:
O-ring - ACG-45
O-ring - A03856
Valve Plate Assy - A09819SV
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Pliers, Power Drill, Socket set, Adjustable Wrench
moisture had rusted reed valves(intake) on valve plate
disassembled valve plate assembly/ordered parts/cleaned head and replaced valve plate assembly
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Tool Type:
Compressor
Parts Used:
Filter Inlet Solberg - N022307
O-ring - ACG-45
Screw - AC-0798
O-ring - A03856
Repair Difficulty:
Hard
Time Spent Repairing:
1-2 hours
Tools Used:
Screwdriver, Pliers, Power Drill, Socket set, Drill Bits
Head Bolts Broken off
Two head bolts were broken off so I had to drill them out and clean up all of the threads in order to put the unit back together, this was the hard part. Once that was done all I had to do was reassemble the unit back together and clean up some wire problems. Then after that did a test run and also found the pressure switch was turned up to full so that the compressor would not shut off yet at 200 lbs, so I turned that down so that the unit would turn off at 160 lbs and on at 120 lbs, then set the regulator to deliver air to the tools at 100 lbs. unit now runs great.
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Tool Type:
Compressor
Parts Used:
O-ring - ACG-45
Repair Difficulty:
Easy
Time Spent Repairing:
15-30 minutes
Tools Used:
Socket set
Air leaking from the head
Removed the four screws holding the head on. The o-ring was cracked and worn. I replaced the o-ring on the valve plate, replaced the head. No more air leaks.
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Reviews
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    I looked for head gaskets for an older air compressor. You had the parts needed, price was fair and delivery was quick. You have my business!
    Guest - August 11, 2020 Verified Purchase
    Perfect fit
    The part fit my 33 gallon Craftsman compressor perfect.
    Dnnis - August 1, 2020 Verified Purchase
    Amazing, before schedule, grate team ( Just perfect ) thanks so much
    The parts exactly the same not a single problem
    Guest - March 10, 2020 Verified Purchase
    Exact fit
    Had seen youtube vids of people repairing their compressors and the oem gaskets ordered from the craftsman website were too big. This one was perfect. Up, running and compressing air. Now my compressor blows. :-)
    Guest - November 23, 2019 Verified Purchase
    Verified Purchase
    eReplacementParts Team
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    Product Information
    Repair Guides
    Watch the Repair Video for O-ring
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