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Repair Parts Home    Power Tool Parts    Porter Cable Parts    Porter Cable Compressor Parts    Porter Cable C3151 TYPE 1 4.5 Gallon Air Compressor Parts
Porter Cable C3151 TYPE 1 4.5 Gallon Air Compressor porter_cable logo

 Porter Cable C3151 TYPE 1 4.5 Gallon Air Compressor Parts

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 Fig # Part # Img Part Name Availability Price Qty
Z-D28461
Extension Handle
Ships in 9 - 14 business days
 $162.67
PTA50
Wheel Kit Obsolete - Not Available
Discontinued
$0.00N/A
3Z-D28261
Console Assembly PL Obsolete - Not Available
Discontinued
$0.00N/A
3-1D28104
Screw .250-20X.500 P
In stock
4 available
 $2.99
3-11D28499
Hose 1/4 ID X 7.50 B Obsolete - Not Available
Discontinued
$0.00N/A
3-12CAC-1206-1
Hose Clamp
In stock
25+ available
 $2.99
3-4Z-D28274
Gauge 2 OD 200PSI 1/
In stock
12 available
 $27.57
3-5SSP-537
Fitting 90DEG Elbow
In stock
3 available
 $9.18
3-6A13369
Regulator/Manifold Assembly
In stock
25+ available
 $58.14
3-6N008792
Regulator Repair Kit
In stock
25+ available
 $20.73
3-7A19513
Body QC .250 Ind .25
In stock
9 available
 $8.17
3-8D28103
Plug QC .250 Ind Hos
Ships in 9 - 14 business days
 $3.11
416471
Knob .313-18 Nut
In stock
3 available
 $6.31
5D28109
Grip Handle 1 OD Foam
In stock
2 available
 $7.56
6D29188
Screw .250-20 X .750 Obsolete - Not Available
Discontinued
$0.00N/A
Fig #Part #ImgPart NameAvailabilityPrice
7D28350
Cover Big Dog PC Red
Ships in 9 - 14 business days
 $46.53
8-15140117-89
Pressure Switch (4 Port)
Backorder:
No ETA.
 $42.05
8-2N044990
Nipple 1/4-18NPT X 1
In stock
11 available
 $3.99
8-3D20114
Valve Safety 175 .25
In stock
5 available
 $22.85
8-5Z-D29552
Gauge
In stock
3 available
 $26.59
8-6N053094
Nipple 1/4-18NPT X 1
In stock
2 available
 $2.08
8-7D21109
Body QC .250 Univ .2
Ships in 9 - 14 business days
 $18.03
9SSP-491
Bushing Reducing 3/4
Ships in 9 - 14 business days
 $5.49
10A05105
Tube Outlet Obsolete - Not Available
Discontinued
$0.00N/A
11SSP-6429
Elbow 1/4 NPT X 3/8
Ships in 9 - 14 business days
 $8.55
13A19996
Valve Check 3/4 NPT
In stock
2 available
 $17.25
15D28345
Tube Pressure Relief Obsolete - Not Available
Discontinued
$0.00N/A
16SSP-7811
Assembly Nut Sleeve 1/4
In stock
15 available
 $2.99
17N072023
Ball Valve
In stock
25+ available
 $6.77
18N022307
Filter Inlet Solberg
In stock
8 available
 $20.13
Fig #Part #ImgPart NameAvailabilityPrice
19SSG-3105
O-Ring 306/296ID 073/
In stock
5 available
 $3.99
20SSP-7821-1
Nut .563-18 UNF Hex
In stock
23 available
 $2.99
22ACG-19
Isolator 3 Point Mou
In stock
3 available
 $2.20
23D20653
Shroud Mini P-C Gray Obsolete - Not Available
Discontinued
$0.00N/A
24ACG-408
Assembly Fastener
In stock
12 available
 $2.99
25ACG-18
Cup Saddle Mount
In stock
2 available
 $2.20
2691895680
Screw .250-20X.750 H
In stock
13 available
 $2.99
27SSF-925
Screw .250-20X.875 H
Ships in 9 - 14 business days
 $3.78
28D24721
Kit-Isolator W/Screw (Contains 3 Each)
In stock
14 available
 $10.11
29D26615
Cord Power ST 14GA 1
In stock
3 available
 $24.60
30F464
Nut .625 Pal Press W
In stock
12 available
 $2.99
3191890228
Washer 5/8 X 1.32 X Obsolete - Not Available
Discontinued
$0.00N/A
32N003522
Pneumatic Wheel
In stock
19 available
 $24.64
33A18256
Axle - Job Boss
In stock
2 available
 $32.24
34A06906
Pin
In stock
2 available
 $0.97
Fig #Part #ImgPart NameAvailabilityPrice
70D27642
Motor PL 120V 3PT 2P
Ships in 9 - 14 business days
 $449.23
86SSF-3158-1
Screw #10-24X.750 TH
In stock
2 available
 $2.20
86D28150
Head Machined 3/8 NP
In stock
3 available
 $34.33
856D28419
Label Obsolete - Not Available
Discontinued
$0.00N/A
856N008806
Label Hot Surface Tr
In stock
3 available
 $0.97

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Compressor Parts

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Remove and install the safety valve on a compressor with these step-by-step instructions.
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How to Replace the Manifold Nipple on an Air Compressor

Step-by-step instructions show you how to replace the manifold nipple on an air compressor.
How to Replace the Regulated Pressure Gauge on an Air Compressor
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Discussion
Discussion for the Porter Cable C3151 TYPE 1 4.5 Gallon Air Compressor

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  • Subject:
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Do I need to have any special tools, like a ring compressor or gaskets to install a piston cylinder kit for my C3151-1 air compressor?
WJA
Reply: Porter Cable Piston/cylinder Kit...

WJA

Hello WilliamR,

There are really no special tools required to install the KK-4835 Piston, Cylinder and Ring Kit.

Good luck with the repair,
-WJA
I looking this part is for motor
my compressor will run fine and create pressure but when it kicks off air comes out of the top of the pressure switch. The pressure gauge for the tank always reads 0 even though the pressure gauge is reading what ever I have it set at. Please Help!
Tinkerdave
Reply: Porter Gable C3151 Compressor

Tinkerdave

Hi Knoff,
First the pressure gauge on the tank pressure side is most likely clogged with dirt or rust.With no pressure in the tank remove the gauge and with a straightened paper clip ,work the end of the paper clip up the hole of the gauge and clean out any dirt and rust.If it still won't show pressure replace it. On the air leaking out of the pressure regulator,if its continues then the check valve or "foot valve is leaking.Again dirt or rust has caused the valve not to close all the way and is allowing high pressure from the tank to bleed out the pressure link removed on the pressure switch model air can leak out of a damaged diaphragm on the pressure switch.You didn't mention what type number your compressor is as i believe they made a number of changes on that model compressor.Hope that helps.good luck.
Tinker
Khopf
Question: Piston Ring

Khopf

Is the piston ring the same as the compression ring?
ryobi_uk_warrenty_repair_centre
Reply: Piston Ring

ryobi_uk_warrenty_repair_centre

depends on wether the machine is a 2 cycle
or a 4 cycle
on a 2 cycle yes it is the same
on a 4 cycle you have oil rings
below the compression rings
camshaft3
Question: Air Leak On Regulator

camshaft3

I have an air leak on my porter cable c3151-1 air compressor. It is leaking around the adjustable knob. When I removed the knob the air is leaking around the brass adjustable part and the regulator housing. I disassembled it and can't see anything wrong. any suggestions?? Thanks
amnldoc1977
Question: Plastis Or Metat Rim For Wheels

amnldoc1977

need to replace rims for pneumatic tires Part number please Thanks
I've a Porter Cable C3151 Job Boss, oil-less compressor.
I replaced the valve plate, piston ring, cylinder, pressure switch and start capacitor.
I had the run capacitor and start capacitor tested and they're ok, but I replaced the start capacitor anyway.
When there is no pressure in the tank, it starts right up, runs to cycle and shuts off perfectly. When I drop the pressure to begin a new cycle, sometimes it will start right up again no problem, and run the cycle. But, sometimes it will labor at start and throw a 25 amp breaker. The only way it will start like this is to let most of the pressure off and turn the switch back on (after resetting the breaker).
Sometimes I've been able to cycle it a dozen times in a row, then for no apparent reason (to me) it labors and throws the breaker.
I've thought about this for a long time and wonder if there is a problem with the motor.
When a car's starter developes a "flat spot" it labors to start the car. Pushing it in gear will move the starter and it will turn the motor over.
Is it possible that this motor has developed a "flat spot"? Could this be why it labors some of the time when starting and not other times? Does this motor have brushes that could need replacement?
Any ideas would be greatly appreciated. I can't justify spending the price of a new motor, I could buy a new compressor for far less...
speedyairrepair
Reply: Porter Cable Compressor Rebuild

speedyairrepair

Most oilless compressor or most porter cable do have brushes. But it sounds like your check valve is leaking. next time turn it on and leave for a minute then try to turn it back on. If it struggles or pops breaker that's the problem.

Any more ? just post. I've fixed over 100 of the same model and type.
dan1
Reply: Porter Cable Compressor Rebuild

dan1

thanks for the reply
I proved that it was the check valve in the following manner:
1. I let the compressor fill to maximum pressure.
2. I unplugged it.
3. Then manually I tripped the pressure switch to release the pressure in the head.
4. When I noticed that the pressure continued to bleed for minutes at a time, and that the pressure in the tank was dropping, I knew the check valve wasn't doing it's job.

I await a new valve, confident it will solve the problem.
894183
Question: Laboring Compressor Start

894183

I have a Porter Cable C3151 oilfree compressor.
I just installed a new pressure switch, piston ring kit, and valve plate assembly.
When the tank is empty and has no pressure built up, the compressor starts and runs like new. When there is pressure in the tank and it is time to cycle, the compressor labors to start. Sometimes it finally will run, but most of the time it throws a 25 amp breaker, then I have to drain the tank to get it to start. Is there another part or kit I should install?
Would the D30144 start/run capacitor kit do the trick?
or is there something else I need to do?
any help appreciated, running to the breaker box every cycle is getting old!!!
thanks
Tinkerdave
Reply: Laboring Compressor Start

Tinkerdave

Hi, Yes your capacitor is most likely the problem.The only other thing that could make it do that would be if the unloader valve was not working right. once the compressor pumps up and shuts off you should hear a short hiss as it dumps the pressure of the head.Hope that helps.Good luck.
Tinker
UtahAV
Reply: Laboring Compressor Start

UtahAV

This could also be an issue with the check valve that is between the tank and the cylinder. When the check valve fails it allows the pressurized air from the tank to bleed back to the cylinder. The motor usually can't overcome this pressure when it turns back on.

Good luck,

-UtahAV
-Mark
dan1
Reply: Laboring Compressor Start

dan1

thanks guys
I don't see a check valve, if there is one it must be part of the valve plate, which is new.
The unloader valve is in the pressure switch, again it's new.
I replaced the start capacitor even tho' it tested ok...no change in performance.
could there be a problem with the motor?
I bought this in '07...
It does start and run fine some of the time, but does labor regularly.
UtahAV
Reply: Laboring Compressor Start

UtahAV

What is the type number of your compressor? (located on the same tag as the model number) The check valve for the type zero appears to be discontinued. The Check valve for the Type #1 and #2 is part #A19996. On the parts diagrams for all of the types the check valve is item #13. I really think that it is the problem. I just hope that your machine is not the type zero.

I hope this helps,

-UtahAV
-Mark
dan1
Reply: Laboring Compressor Start

dan1

Mark-
thanks so much. I was thinking I would have to replace the motor.
this part seems to be almost hidden to any one not knowing it's there.
I'll order this today and hope it fixes the problem.
I thought too, that the pressure wasn't releasing, but thought the check valve was part of the pressure switch...
thanks again
~Dan
dan1
Reply: Laboring Compressor Start

dan1

I went down to the shop and took the check valve out.
To my surprise, there was a small chip of stainless steel (from the old valve plate) stuck in it.
I removed the chip, sprayed it with a light lubricant and put it back in the compressor.
The compressor cycled 20 times with no problems....
glad to have the internet, and especially please to have this forum...
kdav
Question: Compressor Will Not Fill

kdav

no matter what i adjust the regulator to it will not fill beyond 20psi motor starts runs strong but will only build to 20psi no matter how long it runs will never build beyond the 20psi.. any ideas???
WJA
Reply: Compressor Will Not Fill

WJA

Hello kdav,

I would suspect that the piston ring and cylinder are worn. Not allowing pressure pressure build up. Part number K-0650 should take care of your problem.

Hope this helps,
-WJA
Ed Rempfer
Question: Siezed Compressor

Ed Rempfer

This spring I tried to start the compressor. The compressor didn't start and blew the circuit breaker. I think it is seized. Thoughts?
No matter what psi i adjust the regulator too my compressor just keeps running unless manually shut off. Does this mean I need a new regulator assembly?
mark
Question: Will Not Shut Off

mark

The motor will not shut off when the tank is full.
My job boss is not that old and i am trouble shooting a problem. The compressor runs almost constantly, even when tank pressure is over regulator level (regulator seems to be working) even if the compressor does fill and shut down any draw at all and the compressor fires back up again. Reservoir tank gauge when empty is reading 120 psi. I think that is the problem or is there more to it.
John
Question: Job Boss C3151

John

Where can I get a new compression ring for the piston?
Mark
Reply: Job Boss C3151

Mark

Hi John,

The ring is no longer offered as a separate part from the manufacture. They do still offer a piston and cylinder kit which includes the ring. If there was damage to the ring the cylinder likely needs to be replaced as well. The kit is part #KK-4835 and is available from http://ereplacementparts.com.

Good luck with your repair!

-Mark
hunt
Question: Job Boss

hunt

How do you tell if you have type 0 or type 1 on the Job Boss air compressor?
Mark
Reply: Job Boss

Mark

Hi hunt,

The Type number is used by manufactures as a way to signify that an update has been made to a tool. The Type number on your P.C. C3151 air compressor will be listed on the tag with the model and serial numbers. If it doesn't have a Type listed anywhere on the tag then you can usually safely assume that you have the Type 0 machine. The Type 0 would be the initial version that the manufacture offered before any changes where made.

Hope this answers your question!

-Mark
bowhunter84
Question: Poter Cable Job Boss

bowhunter84

have a job boss mod c3151air compressor when looking up parts it gave me the mod c3151 but also shows type 0 or type 1 how do you tell the difference?
cmoorejack
Reply: Poter Cable Job Boss

cmoorejack

Hey bowhunter84,
Manufactures sometimes make major changes and sometimes minor or no changes between types..if you don't have any type on your machine it probably is a type 0..also check to see if there is a part # change or not to the specific part [between types] that you need and match up with the picture if available.:)
hope this is helpful?
cmoorejack
ggarrett
Question: C3151 Compressor Problem

ggarrett

Unit will fill normally but will not refill when pressure deceases. Motor tries to run, but bogs down and throws the breaker. Have replaced check valve and pressure switch to no avail
cmoorejack
Reply: C3151 Compressor Problem

cmoorejack

Hey ggarrett,
Usually the check valve replacement remedies this problem..A19996 [the check valve lets air into tank but not back out..when it leaks, air pressure stays in the head of the pump and bogs down upon restart.] It sounds like you may still have pressure remaining in the head of the pump and it is not 'bleeding' off..check the tube and fitting going to the pressure switch for kinks or some kind problem..[make sure the pressure relief valve on the p switch is lined up straight..]
hope this helps..?
cmoorejack
ggarrett
Reply: C3151 Compressor Problem

ggarrett

reworked the check value and pressure switch, but the problem remains. Gave up and dropped it off at a repair shop.
bbeef
Reply: C3151 Compressor Problem

bbeef

Were you able to get it repaired and what was it? I did the check valve/pressure switch/scratch my head routine too.
Thanks
bec98x
Reply: C3151 Compressor Problem

bec98x

I agree with cmoorejack

I would check the air line that goes to the pressure and make sure the pressure switch is bleading the pressure off when the switch shuts off. You should hear a ppppsssssssssssss noise for a few seconds after the motor shuts off.

Sometimes the connection gets bent when installing the switch. Make sure the lever on the pressure relief valve pushes on the little pin.

My checklist is

Check Valve
Pressure Switch
Relief Valve
Trash Can
raiderfan1975
Reply: C3151 Compressor Problem

raiderfan1975

I am in the US Navy and am deployed right now. We had the same problem with three of our compressors and no one could figure it out. But the problem was so simple. I took the gauge from the P-switch and replaced it with a plug. That fixed the problem for now. I am pretty sure that with another gauge it will run pretty good but it seems to be working fine now. I have been using a nail gun now for 6 hours straight and have not had a problem with it. Any questions just let me know
bbeef
Reply: C3151 Compressor Problem

bbeef

Thanks bec98x and raiderfan. Not check valve, compensator tube, press switch or relief valve so far. In the meantime I took the capacitors (one apparently helps the motor re-start under load, and the other balances the running- that's what the motor guys says) out of the motor cover to a local shop and both read dead. I ordered replacements, probably wasting $$ since I remember that the gauge is bad on the PSwitch (reads 0 fully pumped) and I can't plug and test it until I can run the motor again. I'll keep you informed...somebody may benefit from this post thread since it seems that this is a common issue with this unit.
BigFJ40
Reply: C3151 Compressor Problem

BigFJ40

Would like to hear what turned out to be the problem on both ggarrett and bbeef's compressors? My compressor starts slow when empty then speeds up and runs fine, then just boggs down and throws the breaker on its second fill. Don't see how putting a plug in the guage hole is gonna fix that, my check valve is fine, pressure switch tube is fine, switch hisses at turn off like its suppossed too. Pressure switch conections are looking black from arcing while in "bogg mode", I'm thinking its a capacitor problem? Help please!
BigFJ40
Reply: C3151 Compressor Problem

BigFJ40

Figured it out, was the Start Capacitor inside the motor. I melted it from running the compressor on too long of extension cord, the motor never got to full speed and the start cap stayed in charge mode and cooked. Porter cables $98 for the capacitor kit is a little over priced. Individual Capacitors can be bought for $5-$12 just about anywhere. (McMaster, Grainger, motor shop)
oddjobbers
Reply: C3151 Compressor Problem

oddjobbers

its simple replace your capasitors, its a extra juse to start your motor i see this alot! its like puting a hard start kit in yor ac
Outlet pressure gauge doe not climb beyond 60psi regardless of what I do with regulator. Gauge returns to zero when the tank is empty. Its hard to tell if there are leaks. Could it just be the regulator?
cmoorejack
Reply: Porter Cable C3151 Compressor

cmoorejack

Hey edmoe,
It could be the regulator ..if the air compressor pumps up and shuts off ok..its the regulator [unless your gauge is bad.. if you can tell your getting the full pressure out and it still reads low]..part # Z-A13369 reg assembly available at ereplacementparts.com...:) as far as the air leaking out as it sits..you can use a soapy solution in a spray bottle to check fittings etc for air leaks..
Hope this helps..:)
Craig
edmoe
Reply: Porter Cable C3151 Compressor

edmoe

Thanks cmoorejack. The regulator seems to turn down o.k. but doesn't go high. I have the same problen with a pancake compressor.
devioussays
Reply: Porter Cable C3151 Compressor

devioussays

what i had on one was the compressor wouldnt turn off or go past 60 some lil metal diaphram thing was broke had it repaired 40$ on my regulator problem if it dont pump up past 60 i open the lil black box and adjust limit scews to get it up to about start 80 - 120 kick off very dangerous thing too do could blow tank if u dont adjust correctly
edmoe
Reply: Porter Cable C3151 Compressor

edmoe

Where was the "lil metal diaphram"?
fancyboxy