Easy
30-60 minutes
This is a Genuine OEM replacement part designed for use with Air Compressors. This kit includes parts commonly responsible for low compression, including the piston and compression ring. Please note that this kit does not include the valve plate, head gaskets, or any other compressor parts.
Replacing this kit you would need a Screwdriver and a Wrench.
Connecting Rod And Piston Asse N038785
OEM part for: DeWALT, Black and Decker, Bostitch
Part Number: N038785
$53.27
In Stock
Ships within 1 business day 
Jump To:
Product Description ?
- Includes cylinder tube, valve plate o-rings and a complete piston including the Bearing.
- Classification: Part
- Weight: 1.05 lbs.
- Shipping: Ships Worldwide
Frequently Purchased Together ?
Compatibility
This part will fit the following 25 machines
DeWALT
D55167 Type 1 Compressor View Diagrams & Manuals
D55168 Type 1 Compressor View Diagrams & Manuals
D55146 Type 1 Compressor View Diagrams & Manuals
D55168 Type 2 200PSI, 15Gal., 120V Electric Compressor View Diagrams & Manuals
D55167 Type 2 200PSI, 15Gal., 120V Electric Compressor View Diagrams & Manuals
D55146 Type 2 4.5 gallon, 200 PSI Hand Carry Compressor View Diagrams & Manuals
D55146 Type 3 Compressor View Diagrams & Manuals
D55167 Type 3 Electric Compressor View Diagrams & Manuals
D55168 Type 3 Electric Compressor View Diagrams & Manuals
D55149 Type 4 Compressor View Diagrams & Manuals
D55168 Type 4 1.8HP 15G Compressor View Diagrams & Manuals
D55168 Type 5 1.8HP 15G Compressor View Diagrams & Manuals
D55146 Type 4 Compressor View Diagrams & Manuals
D55146 (Type 1) Compressor Power Tool View Diagrams & Manuals
D55146 (Type 5) Compressor Power Tool View Diagrams & Manuals
D55167 (Type 4) Workshop Compressor Power Tool View Diagrams & Manuals
D55167 (Type 5) Workshop Compressor Power Tool View Diagrams & Manuals
D55168 (Type 6) Compressor Power Tool View Diagrams & Manuals
D55168 (Type 7) Compressor Power Tool View Diagrams & Manuals
Black and Decker
919-16760 Type 0 Compressor View Diagrams & Manuals
919-16761 Type 0 Compressor View Diagrams & Manuals
919-16762 Type 0 Compressor View Diagrams & Manuals
919-16763 Type 0 Compressor View Diagrams & Manuals
Bostitch
CAP1615-OF (Type 0) C 15G Vp Ehp Of 200Psi B View Diagrams & Manuals
CAP1645-OF (Type 1) C 4.5G Jb Ehp Of 200Psi B View Diagrams & Manuals
Show More Compatible Models
This item works with the following types of products:
- Compressor Parts
This part replaces obsolete part #: N021229, A17572
Customer Part Reviews ?
Average Rating (out of 5):
Click to filter by ratings:
5 stars
8
4 stars
0
3 stars
0
2 stars
0
1 stars
0
< PREV
- 1
Thank you
good quality my compressor is still working like new
CARLOS -
March 11, 2023
Verified Purchase
Easy Day
Received part promptly after ordering. Took 15 minute's and had air compressor completely back together and pushing 200+ psi.would recommend to any one.Easy Fix.
Guest -
November 8, 2021
Verified Purchase
Rod and piston dewalt
Great fit.
Fast shipping
Guest -
August 28, 2021
Verified Purchase
Parts were exact fit and easy to install.
The parts arrived quick and were exactly what I needed to get my free compressor up and running. Thanks!
Guest -
January 14, 2021
Verified Purchase
Dewalt compressor is back in service
The parts were just what I needed. They arrived sooner than I expected. The repair went pretty fast , and the compressor performs like a new one. I am a happy customer. Thank you ereplacement parts.
Kim -
May 13, 2020
Verified Purchase
Excellent
My compressor is like new again
After throwing a rod
Guest -
March 6, 2020
Verified Purchase
easy repair instructions came with the parts
parts arrived in great condition fast and the right parts
Guest -
January 14, 2020
Verified Purchase
Easy repair. As usual saved a fortune over buying a new one.
Parts were exactly what I needed.
Francis -
October 29, 2019
Verified Purchase
t
t
t -
t days ago
Verified Purchase
eReplacementParts Team
t
Questions & Answers ?
Our customer Service team is at the ready daily to answer your part and product questions.
Ask our Team
We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
Does this fit my product?Questions & Answers for Connecting Rod And Piston Asse
In the specification field it states: comes with cyl. tube, valve plate, and O-rings. In the description it states: does not come with valve plate or O-rings. Which one is it please? Thanks
Lee
for model number D55146
asked on 2022-10-05
Hello Lee, Thank you for the question. N038785 Connecting Rod and Cylinder Assembly replacement kit includes the following: 1 Connecting Rod Assembly, 1 Cylinder Sleeve Assembly, 1 Valve Plate O-Ring and 1 Cylinder O-Ring. Sorry for the confusion. Thank you for your inquiry, good luck with this repair!
eReplacementParts Team October 05, 2022
Will this connecting rod and sleeve fit my DeVilBiss 5hp 20 gallon air compressor
Mike
for model number IFRB5021
asked on 2022-03-27
Hello Mike, thank you for writing. No, the part you had chosen is not compatible for your model. The correct part for your model number is K-0650. If you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you.
eReplacementParts Team March 27, 2022
Will this kit fit dewalt D55168 type 9?
Chris
for model number Dewalt d55168 type 9
asked on 2022-02-21
Hello Chris, Thank you for your inquiry. We have researched the model number you have provided and do not show it as compatible for a type 9 version of your model. The compatible part number is N088700. We hope this helps and if you need help placing an order, customer service is open 7 days a week. Please feel free to give us a call. We look forward to hearing from you!
eReplacementParts Team February 21, 2022
Customer Repair Instructions ?
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part.
Piston and rings wore out
paul - May 17, 2016
👍 14 of 15 people found this instruction helpful
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Screwdriver, Wrench Set, Adjustable Wrench
Parts Used
The kit includes very easy to follow instructions on how to install it. I think I would have been able to do this repair without them anyway. Easy
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Piston and cylinder worn out.
Richard - December 14, 2017
👍 5 of 5 people found this instruction helpful
Tool Type
Compressor
Difficulty
Medium
Time
30-60 minutes
Tools Used
Screwdriver, Power Drill, Socket set, Adjustable Wrench
1. Remove the covers.
2. Remove the lines.
3. Remove the head and the reed valves.
4. Remove the piston and the cylinder.
5. Install the new piston and cylinder.
6. Install the new gaskets.
7. Install the new air filter.
8. Install the lines.
9. Install the covers.
10. Start and run, check pressures, operating and tank.
2. Remove the lines.
3. Remove the head and the reed valves.
4. Remove the piston and the cylinder.
5. Install the new piston and cylinder.
6. Install the new gaskets.
7. Install the new air filter.
8. Install the lines.
9. Install the covers.
10. Start and run, check pressures, operating and tank.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Compressor wouldn't build pressure
Jerry - September 11, 2016
👍 4 of 4 people found this instruction helpful
Tool Type
Compressor
Difficulty
Medium
Time
15-30 minutes
Tools Used
Screwdriver, Socket set, Wrench Set
Parts Used
I was glad to see an instruction manual on how to install these parts. Made it mush easier.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Not building air pressure
Myron - February 17, 2017
👍 4 of 5 people found this instruction helpful
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Wrench Set, Ratchet & torque wrench
Parts Used
The kit has a great set of instructions to follow. Had it done in no time. And it's working like it's new.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Broken Rod
Buzz - October 19, 2023
Tool Type
Compressor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Wrench Set
removed head and old rod and piston
removed flywheel screw (bent)
installed screw
installed piston and rod
installed head
removed flywheel screw (bent)
installed screw
installed piston and rod
installed head
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Air compressor wouldn’t fill with air.
Jeffery - April 28, 2023
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Socket set, Wrench Set, Allen wrenches
I simply removed the covers then removed the piston and cylinder. I replaced them with the new piston and cylinder. Then replaced the covers. Works great! Quiet and like new.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Connecting rod and Bolt holding the flywheel, both broke
Donald - September 22, 2022
Tool Type
Compressor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Screwdriver, Socket set, Adjustable Wrench, Torque wrench & torque screwdriver
1. Removed outer plastic casing from around the compressor motor. Removed the rubber belt
from housing (not damaged).
2. Removed the piping from the compressor head to the tank. Removed the compressor head.
3. Removed the broken connecting rod, piston and cylinder sleeve from the compressor body.
Removed the broken bolt that secures the flywheel to the compressor housing.
4. Removed the screw that attaches the connecting rod to the flywheel (reused screw).
5. Attached flywheel to housing with new bolt and torqued to 100 ft-lbs.
6. Installed new cylinder sleeve, piston, and connecting rod and replaced the compressor head.
7. Connected the new connecting rod to the flywheel boss and installed the reused screw.
8. Torqued all bolts to required specs.
9. Installed the piping that was removed and replaced the rubber belt. Installed the plastic
covers.
10. Connected power and test ran. RUNS LIKE NEW.
from housing (not damaged).
2. Removed the piping from the compressor head to the tank. Removed the compressor head.
3. Removed the broken connecting rod, piston and cylinder sleeve from the compressor body.
Removed the broken bolt that secures the flywheel to the compressor housing.
4. Removed the screw that attaches the connecting rod to the flywheel (reused screw).
5. Attached flywheel to housing with new bolt and torqued to 100 ft-lbs.
6. Installed new cylinder sleeve, piston, and connecting rod and replaced the compressor head.
7. Connected the new connecting rod to the flywheel boss and installed the reused screw.
8. Torqued all bolts to required specs.
9. Installed the piping that was removed and replaced the rubber belt. Installed the plastic
covers.
10. Connected power and test ran. RUNS LIKE NEW.
Did you find this story helpful?
Thanks for voting and helping fellow customers!
The old unit had a worn out compression ring. New one was most exce
Joyce - June 3, 2022
Tool Type
Compressor
Difficulty
Easy
Time
30-60 minutes
Tools Used
Socket set, Wrench Set, Torque wrench
Parts Used
Followed the instructions and all went smoothly
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Started compressor when it was too cold ((5F)…blew the piston ring and subsequently blew sleeve and valve plate as well…
HANS - January 30, 2022
Tool Type
Compressor
Difficulty
Easy
Time
15-30 minutes
Tools Used
Pliers, Socket set, Wrench Set, Torque wrench
Removing shroud, plastic motor housing connecting rod assembly, sleeve, valve plate. Pretty easy….
Did you find this story helpful?
Thanks for voting and helping fellow customers!
compressor would not compress air into the tank
Ernie - October 25, 2021
Tool Type
Compressor
Difficulty
Easy
Time
Less than 15 minutes
Tools Used
Screwdriver, Socket set, Nutdriver, Adjustable Wrench, Torque Wrench
Removed plastic cover over the compressor motor
Loosened nut holding the Connecting Rod and Piston Assembly and removed assembly.
Removed Valve Plate Assembly and inspected parts for damage.
Installed in reverse order Connecting Rod and Piston Assembly.
Torqued the nut holding the Connecting Rod and Piston Assembly.
Replaced all O-rings and bolted Valve Plate Assembly back together.
Torqued all 4 nuts holding the Valve Plate Assembly
Replaced plastic cover over the compressor motor and tightened all screws.
Done
The compressor works great again :)
Loosened nut holding the Connecting Rod and Piston Assembly and removed assembly.
Removed Valve Plate Assembly and inspected parts for damage.
Installed in reverse order Connecting Rod and Piston Assembly.
Torqued the nut holding the Connecting Rod and Piston Assembly.
Replaced all O-rings and bolted Valve Plate Assembly back together.
Torqued all 4 nuts holding the Valve Plate Assembly
Replaced plastic cover over the compressor motor and tightened all screws.
Done
The compressor works great again :)
Did you find this story helpful?
Thanks for voting and helping fellow customers!
Load More Install Stories
OEM stands for Original Equipment Manufacturer and means the part you’re buying is sourced directly from the manufacturer who made your product. At eReplacementParts, we sell only genuine OEM parts, guaranteeing the part you’re purchasing is of better design and of higher quality than aftermarket parts.
Our product descriptions are a combination of data sourced directly from the manufacturers who made your product as well as content researched and curated by our content & customer service teams. This content is edited and reviewed internally before being made public to customers.
Our customer service team are at the ready daily to answer your part and product questions. We have a dedicated staff with decades of collective experience in helping customers just like you purchase parts to repair their products.
All our part reviews are solicited directly from other customers who have purchased this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
All our customer repair instructions are solicited directly from other customers just like you who have purchased and replaced this exact part. While we moderate these reviews for profanity, offensive language or personally identifiable information, these reviews are posted exactly as submitted and no alterations are made by our team.
Based on data from past customer purchasing behaviors, these parts are most commonly purchased together along with the part you are viewing. These parts may be necessary or helpful to replace to complete your current repair.
All our installation videos are created and produced in collaboration with our in-house repair technician, Mark Sodja, who has helped millions of eReplacementParts customers over the last 13 years repair their products. Mark has years of experience in selling and repairing both commercial and residential products with a specialty in gas-powered equipment.
This data is collected from customers who submitted a repair instruction after replacing this exact part. Customers can rate how easy the repair was to complete and how long it took. We aggregate this data to provide a repair rating that allows customers to quickly determine the difficulty and time needed to perform their own repair.
