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Superior Millennium Cylinders SA10200-A20P With Valve

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Single Cylinder4 Cylinder Kit
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NOTE: These are swaged type cylinders, if you need removable push rods please order part # 07-12522.

Uniform hardness all the way through the steel barrel walls which allows the barrel to provide even wear while withstanding extreme cylinder temperatures and pressures.

Exhaust and intake ports are volumetrically matched to maximum output and performance.

Increased port wall thickness - eliminates problems with warping and cracking.

Computer-generated head fin configuration - deliver more uniform heat transfer and fewer "hot" spots.

Manufactured from the most advanced alloys available - exceed industry standard for strength and porosity.

Note: Item does not include piston pin or rocker arms.


Engine Configurations
C125 -2
C145 -2, -2H
O-200 -A, -B
O-300 -A, -B,C, -D


Parts per Assembly

  • 1 - Guide, NI-Resist (SA10205)
  • 1 - Guide, Int. (SA10209)
  • 1 - Insert, Exh. (SA2106)
  • 1 - Seat, Int. (SA641793)
  • 2 - Helicoil (MS9018-05/2-52)
  • 2 - Housing, Push Rod (SA21284)
  • 4 - Bushing, Rocker Shaft (SA22949 M05)
  • 2 - Stud (SA401870)
  • 2 - Stud (SA402151)
  • 1 - Plug (MS20913-1)
  • 1 - Cylinder Stud (SA10200-A1)
  • 1 - Cover, Valve (SA40762)
  • 1 - Valve, Exh. (SA10204)
  • 4 - Lock (SA21361)
  • 1 - Retainer (SA24026)
  • 2 - Spring (SA24031)
  • 1 - Retainer, Valve Spring (SA24044)
  • 2 - Spring, Valve (SA625957)
  • 2 - Spring (SA625958)
  • 2 - Seat, Valve Spring (SA625961)
  • 1 - Valve, Int. (SA641792)
  • 1 - Shaft, Rocker Valve (SA21153)
  • 1 - Piston (SA530348)
  • 1 - Seal (21477)
  • 1 - Gasket (SA22250)
  • 1 - Gasket (SA530162)
  • 2 - Connector Push Rod (SA539840)
  • 2 - Gasket (SA632837)
  • 1 - Gasket (SA530928)
  • 1 - Ring (SA2000)
  • 2 - Ring (SA1000)
  • 1 - Ring (SA10206)
  • Customers Also Viewed
  • Frequently Purchased With


Very happy with the entire kit except not using the exhaust gaskets, going to upgrade them.

David D Verified Purchase


December 14, 2021

Ricky L Verified Purchase


November 4, 2021

Got it on the next day. Compression was 73 before even firing it up. Only have about 3 hours on the breakin so far all is good.

Alan W Verified Purchase


August 19, 2021

The cylinder was installed and performed as indicated.

Serge R Verified Purchase


August 13, 2021

Superior products and tech support are second to none. Bill Ross at Superior took all the time I needed to answer all questions I had. Aircraft Spruce located the correct weight piston for the cylinder I needed and shipped it right out. There was a mix up with the shipping at first which they corrected immediately and paid the expedited shipping charge. I can’t say enough about the quality of the product, Superior’s tech support and Spruce’s customer service. Top notch in all respects.

Joseph E Verified Purchase


July 23, 2021

I ordered a Millenium cylinder for 0300D Continental engine. I was very satisified I got them in such a short time. I am happy. Thank you.

Dennis N
May 7, 2021

arrived in good condition

Richard Y
January 25, 2021

Installed on a Cessna 150 with the 0-200 engine. So far no problems with a little over 3 hours flight time on new cylinder.

July 2, 2020

We are in the process of restoring a 1962 Cessna 172C. The O300 power plant runs well but is getting tired. We used Superior Millenium cylinders for the top overhaul. The quality and workmanship is exceptional. Very pleased with the purchase.

Matthew W
March 7, 2020

First cylinder I have every purchased. Glad I didnt go rebuilt. These are very well made. Complete less rockers and piston pin.

Tom W
September 18, 2019


Please note, Aircraft Spruce Canada's personnel are not certified aircraft mechanics and can only provide general support and ideas, which should not be relied upon or implemented in lieu of consulting an A&P or other qualified technician. Aircraft Spruce Canada assumes no responsibility or liability for any issue or problem which may arise from any repair, modification or other work done from this knowledge base. Any product eligibility information provided here is based on general application guides and we recommend always referring to your specific aircraft parts manual, the parts manufacturer or consulting with a qualified mechanic.

Q: What are the differences between SA10200-A20P, -A21P, and -A22P?

The difference is in the engine application:

  • SA10200-A20P is for Continental O-200-A, B; C-125-2, C-145-2, -2H; O-300A, B, C, D
  • SA10200-A21P is for Continental C-75, 85
  • SA10200-A22P is for Continental C-90

Q: Is this Superior Millennium Cylinder SA10200-A20P with valve complete with the piston and piston rings?

Yes, the product listed on this page is a complete, assembled cylinder. It will come with the piston and ring.

Q: The picture doesn't show push rod shroud tubes. Do they not come with those installed?

Yes, it does come with the shroud tubes installed.

Q: What is the weight of the Superior Millennium Cylinder SA10200-A20P kit?

These are approximately 35 lbs.

Q: Is there a gasket kit included with the Superior cylinder SA10200-A20P?

Yes. It comes with the complete gasket set to replace all gaskets / seals during removal / replacement.

Q: Does this Superior cylinder come with a wrist pin? If not, what is the part number?

This cylinder does not come with a piston pin. The part number for the pin is 08-11143.

Q: Does the SA10200-A20P come with pushrods and valve covers?

Yes, it will come with a valve cover, push rod housing and push rod connector.

Q: Does the Superior Millenium Cylinders SA10200-A20P ring need to be set or are they ready to go?

We do not install the ring sets in the cylinders when we ship them. The rings will have to be gapped in accordance with Superior Air Parts Service Letter L05-09.

Q: Is the Millennium cylinder identical to the original Continental cylinder? I need to replace just one cylinder, is that OK to do?

Yes, the application is exactly the same. They are manufactured two different places, but the fit and form is the same. Yes, you can just replace one cylinder, although it is common when replacing one to replace the entire set.

Q: Can these be retrofit with the Real Gaskets pushrod tube mod?

Yes, they will work.

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