See part B-800 in the diagram
( Grid squares measure 1x1 inch )
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KIT COMP RING REPLAC K-0650
Fits your C3151!
$131.18
Special Order
Fits your C3151!
PartSelect Number
PS12518127
Manufacturer Part Number
K-0650
Manufactured by
DeWALT
Product Description
KIT COMP RING REPLAC Specifications
This kit is an OEM part direct from Craftsman for air compressors. This kit consists of the parts for building a piston cylinder in the compressor. It is recommended that you release air and unplug the air compressor before you install this kit. You will need a wrench set to replace this part. This kit includes two o-rings, piston ring clamp screw and the cylinder tube. This kit is made of metal and rubber components.
How Buying OEM Parts Can Save You Time and Money
Troubleshooting
This part fixes the following symptoms:
No compressed air
This part works with the following products:
Compressor.
This part works with the following products:
DeVilbiss, Craftsman, Porter Cable, Black and Decker.
Part# K-0650 replaces these:
K-0650, PK-0650
Customer Repair Stories
Average Repair Rating: 3.3 / 5.0, 1 reviews.
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Sorry, we couldn't find any existing installation instruction that matched.
The air was bypassing the compressor gaskets and cylinder wall was worn out
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 the 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
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 the 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
Other Parts Used:
-
Charles from GARRISON, TX
-
Difficulty Level:Easy
-
Total Repair Time:30 - 60 mins
-
Tools:Screw drivers, Socket set
18 of 24 people
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Questions and Answers
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Michel
February 8, 2026
What is the piston seal made of (rubber, plastic or teflon)? Thanks!
For model number Air compresseur craftman modèle 919-721960
Hello Michel, thank you for reaching out. The piston seal or the piston ring is made of Teflon. We hope this information helps!
2 people found this helpful.
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Dennis
October 17, 2022
Does it fit this model
For model number 921-166420
Hello Dennis, thank you for your question. The Piston Kit, part number PS16348857, will fit your model. If you need help placing an order, customer service is open 7 days a week. Thanks again for your great question.
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Danny
June 10, 2024
Does this work for craftsman air compressor model number 919-16523? Thank you
For model number 919-16523
Hi Danny, thank you for reaching out. Yes, this will work with your model. We hope this helps.
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Model Cross Reference
This part works with the following models:
PartSelect Number: PS12518127
Manufacturer Part Number: K-0650
Manufacturer Part Number: K-0650
Brand
Model Number
Description
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1-866-883-8386
Monday to Saturday
8am - 8pm EST