IRF18 (Type 4) DeVilbiss Compressor - Overview

Diagrams for IRF18

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Switch Pres 2Port 10 – Part Number: 5140112-18
$154.47
Special Order
Switch Pres 2Port 10
Part #5140112-18
Nut – Part Number: 038738-00
$7.44
Special Order
Nut
Part #038738-00
This is a genuine replacement part manufactured for use with outdoor power equipment and air compressors. This nut is used to fasten various part assemblies on a range of different products. This nut is sold individually, please see model diagram for part usage and location.
RING PANEL MOUNTING – Part Number: CAC-61
No Longer Available
RING PANEL MOUNTING
Part #CAC-61
DRAIN VALVE – Part Number: N286039
$12.20
Special Order
DRAIN VALVE
Part #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 the drain valve comes in—it allows you to release the built-up water and keep your tank in good condition. Located at the bottom of the tank, this valve should be opened after each use to prevent corrosion and extend the life of your compressor. If you tend to leave air in the tank for long periods, water accumulation can be even more significant. This replacement drain valve features a thread size of 18 TPI and is sold individually. Regular maintenance with a working drain valve helps ensure safe and efficient compressor operation.
VALVE SAFETY 150 .12 – Part Number: 97503734
$16.13
Special Order
VALVE SAFETY 150 .12
Part #97503734
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 the 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. Please make sure to refer to the appropriate diagrams of your model for the correct location and application of this component. Keep in mind this high-quality part is made of durable metal and is sold individually.
ISOLATOR 3 POINT MOU – Part Number: ACG-19
$7.44
Special Order
ISOLATOR 3 POINT MOU
Part #ACG-19
ADAPTER .25 NPT X .2 – Part Number: D26889
No Longer Available
ADAPTER .25 NPT X .2
Part #D26889
This is an OEM part sourced directly from the manufacturer. The adapter is designed for use in compressors from DeVilbiss, Black & Decker, Delta, and Porter Cable. This part is made of metal, and may be used to connect the regulator to the tank. You will require a wrench when replacing this part. This item is sold individually.
STANDPIPE BRASS MALE – Part Number: AC-0027-2
No Longer Available
STANDPIPE BRASS MALE
Part #AC-0027-2
KIT CONNECTING ROD L – Part Number: KK-4835
No Longer Available
KIT CONNECTING ROD L
Part #KK-4835
This rod kit is an original part from Craftsman for air compressors. This part attaches to the piston to the crankshaft that is in the pump. This kit includes the following: cylinder head, piston, cylinder head gasket and piston ring. You will need a wrench set and socket set to replace this part. When installing this part, it is recommended that that you fasten the top screw (50-60 inch- pounds). This kit is made of metal and rubber.
ASSY VALVE PLATE – Part Number: Z-AC-0032
$104.71
In Stock
ASSY VALVE PLATE
Part #Z-AC-0032
This replacement valve plate assembly is a high quality item designed for use on Craftsman air compressors. It is a genuine manufacturer sourced item that is used to control the airflow into the cylinder. Once the piston starts traveling up, the reeds on the valve plate open and air is sent into the air tank. Overtime the reeds will get worn eventually requiring valve plate replacement. One metal valve plate with reed valves and two rubber seals are included in this assembly. When replacing this valve plate assembly it is also a good time to replace the head gaskets which are sold separately. You will need a wrench set to complete this repair.
SHROUD FRONT BLK – Part Number: AC-0078
No Longer Available
SHROUD FRONT BLK
Part #AC-0078
This is an OEM part sourced directly from the manufacturer. The front shroud is commonly found in compressors from DeVilbiss. This part is made of high-quality plastic, and is used to cover the front of the motor assembly. You will require a screwdriver when replacing this part. This item is sold individually.
TUBE PRES REL .250OD – Part Number: AC-0160
No Longer Available
TUBE PRES REL .250OD
Part #AC-0160

Common Symptoms of the IRF18

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

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The air was bypassing the compressor gaskets and cylinder wall was worn out
18 of 24 people found this instruction helpful.
  • Charles from GARRISON, TX
  • Easy
  • 30 - 60 mins
  • Screw drivers, Socket set
1 remove cover
2 unhook air line to tank
3 remove head bolts
4 remove intake from head
5 remove flywheel bolt to free up pump piston
6 remove screw on top of piston to change out gasket
7 remove the cylinder sleeve install piston from the top
8 reassemble piston rod end and the flywheel
9 on th e head cover are two gaskets one on top and one on the bottom head
10 insert intake piece and bolt the head cover back in place
11 reinstall the air line and unit cover and secure with three cover screws
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