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921166400 Craftsman Compressor - Overview

Diagrams for 921166400

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Gasket Kit – Part Number: E100959
$26.36
On Order
Gasket Kit
★★★★★
★★★★★
(3)
Part #E100959
This authentic manufacturer-sourced gasket kit is made for use with Craftsman air compressors. The parts in this kit are utilized to ensure a tight fit between the pump's components allowing it to build up the pressure. Over time gaskets may wear out and begin to crack eventually requiring replacements. For the exact locations and the correct installation of the new components, please refer to the appropriate diagrams of your model. This high-quality kit includes five durable parts. You will need a wrench set to take the pump apart and reassemble it.
CAP, OIL FILL W/O-RING – Part Number: E100087
$14.97
In Stock
CAP, OIL FILL W/O-RING
★★★★★
★★★★★
(3)
Part #E100087
Genuine Manufacturer Sourced replacement part designed to fit some Craftsman Air Compressors. This part is made out of Plastic and it is Sold Individually. This part connects to the Crank Case Cover securing the oil inside.
Drain Valve, Multi-Turn – Part Number: E100098
No Longer Available
Drain Valve, Multi-Turn
Part #E100098
Valve, Reed – Part Number: E100229
$18.39
On Order
Valve, Reed
Part #E100229
This replacement valve reed is a n authentic OEM item that is specially designed for Craftsman air compressors. Reed valves are commonly used in high-performance versions of the two-stroke engine, where they control the fuel-air mixture admitted to the cylinder. As the piston rises in the cylinder a vacuum is created in the crankcase beneath the piston. Please note this metal reed valve is sold individually.
ELEMENT – Part Number: E100435
$10.05
In Stock
ELEMENT
Part #E100435
This is an original replacement part manufactured for use with Craftsman air compressors. The special filter is used to prevent dust or debris from entering the air intake on the cylinder head of the compressor's pump. This air filter should be changed during normal maintenance, and is available as an individual replacement part.
Air Compressor Piston Kit – Part Number: E100251
$110.33
Special Order
Air Compressor Piston Kit
★★★★★
★★★★★
(2)
Part #E100251
This piston kit is for air compressors. The piston kit contains parts for rebuilding the piston and related parts. The kit may include multiple parts; refer to your parts diagram for a complete list of parts included. Unplug the air compressor and bleed air from the tank before installing this part. Wear work gloves to protect your hands.
HEAD, CYLINDER – Part Number: E100227
$47.52
Special Order
HEAD, CYLINDER
Part #E100227
This cylinder head is a genuine Craftsman replacement part sourced from the original manufacturer for use with air compressors. This part is used to cover the pump assembly and to draw air into the pump to be compressed. The cylinder head assembly is available as an individual replacement part.
Regulator, 3 Port 1/4 Npt – Part Number: E100971
$31.20
On Order
Regulator, 3 Port 1/4 Npt
★★★★★
★★★★★
(5)
Part #E100971
This is an original Craftsman replacement part manufactured for use with air compressors. The regulator is used to adjust the amount of pressure in the tank. This regulator is sold as an individual replacement part.
GAUGE, PRESSURE 50 MM 0-250PSI – Part Number: E103746
$49.70
Special Order
Plate, Valve – Part Number: E100228
$37.22
Special Order
Plate, Valve
Part #E100228
Intake Filtr – Part Number: E101179
No Longer Available
Intake Filtr
★★★★★
★★★★★
(1)
Part #E101179
This intake filter is a genuine Craftsman part for air compressors. This part keeps the air clean by filtering out debris and dust out of the air compressor. It is recommended to unplug the air compressor and release the air from the tank before replacing this part. This intake filter is made of durable material and sold individually.

Manuals & Care Guides for 921166400

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Common Symptoms of the 921166400

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

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Compressor runs but not building pressure
12 of 14 people found this instruction helpful.
  • Andrew from FORT MILL, SC
  • Easy
  • 30 - 60 mins
  • Wrench (Adjustable)
Could not find external leak, so assumed problem was in the cylinder head. I removed the big, black plastic shroud, and disconnected the line with the cooling fins leading from the cylinder head to the tank. I then unbolted the 4 Allen bolts holding the cylinder head to the cylinder body. I discovered the gasket that sits on top of the valve plate was shredded in the center piece that separates the intake port from the exhaust port. I put in new reed valves (PS10044654) and replaced the blue gasket between the cylinder and the lower valve plate and the metal gasket between the valve plates and the blue gasket on top of the upper valve plate. The gaskets are part of gasket kit PS10044723. I had to scrape the old blue gaskets off, which was the most time consuming part of the repair. I used valve grease to hold the reed valves in place during re-assembly. I did not use the gasket at the base of the cylinder or the gasket that is used for the crank case cover since neither was removed. Reinstalled the Allen bolts, the line to the tank from the cylinder head and the plastic shroud. Compressor works fine now.
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I knocked over my air compressor and broke the oil cover.
3 of 5 people found this instruction helpful.
  • Daniel from MCCONNELSVLE, OH
  • Very Easy
  • Less than 15 mins
  • Screw drivers
It's only 4 screws that hold on the cover. I just swapped them out. Luckily most of these cheap air compressors use the same parts. So even though this is for a craftsman air compressor, it still worked for my air stream air compressor.
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Tank drain valve was unable to close due to rear.
2 of 4 people found this instruction helpful.
  • Thomas from UNICOI, TN
  • Really Easy
  • Less than 15 mins
  • Wrench (Adjustable)
Found the part at Part Select ,simply removed the worn out valve with an adjustable wrench and put new valve in, tightened it and the repair was completed, tested compressor for leaks .SAVED $149.00 by replacing a $7.00 part.
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