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Superior Millennium Cylinders SA10200-A21P Power Assembly

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Single Cylinder4 Cylinder Kit
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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.

+ Included with stud assembly.
California Prop 65 Warning Symbol

WARNING: The product may contain and/or expose you to a chemical(s) or substance(s) which are known to the State of California to cause cancer and/or birth defects or other reproductive harm.


Engine Configurations
C75 -8, -8F, -8FH, -8FHJ, -8FJ, -8J, -12, -1 2F, -12FH, -12FHJ, -12FJ, -12J, -12B, -12BF, -12BFH, -15, -15F
C85 -8, -8F, -8FHJ, -8J, -12, -12F, -12FH, - 12FHJ, -12FJ, -12J, -14F, -15, -15F


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 (SA24029)
  • 1 - Retainer, Valve Spring (SA24044)
  • 2 - Seat, Valve Spring (SA625961)
  • 1 - Valve, Int. (SA641792)
  • 2 - Spring Valve (SA24030)
  • 1 - Shaft, Rocker Valve (SA21153)
  • 1 - Piston (654841)
  • 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)
  • Frequently Purchased With
  • Customers Also Viewed


Five stars.

Edward W Verified Purchase


May 8, 2022

Scott was a great salesman, my cylinders a ride in two days from the day that I ordered them. Great service thank you aircraft Spruce

Paul R
April 21, 2021


Please note, Aircraft Spruce'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 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 is included in the box with this product? SUPERIOR MILLENNIUM CYLINDER SA10200-A21P POWER ASSEMBLY. Part # 08-10909 Thanks!!

Per the supplier: Valve assembly, piston, rings, hardware, gasket set, rocker cover. Does not include the piston pin.

Q: Does it include rocker arms?

This does not come with the rocker arms or piston pin but it does come with the Rocker shaft.

Q: Does the cylinder assembly come with both push rod tubes? If so, are they installed?

Yes, this will include the pushrod tube housing. They are preinstalled and swedged into the cylinder.

Q: Does it come with rocker arm bushings?

That does not come with the rocker arm bushings.

Q: Are the exhaust and intake studs installed on the Superior SA10200-A21P cylinders? Also are push rod tubes installed?

Yes. The studs and push rod tubes are installed.

Q: I see this cylinder assembly does not include the piston pin what is the part number to order the piston pin for this cylinder assembly?

SA530830 our part number 08-11143.

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