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Superior Millennium Cylinder SA47006S-A21P Power Assemblies
Overview
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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. |
Eligibilities
| Engine | Configurations |
| O-470 | -K, -K-CI, -L, -L-CI, -R, -S, -T |
Documents
Parts per Assembly
- 1 - Guide, Exh. (SA636242)
- 1 - Guide, Intake Valve (SA643766-1)
- 1 - Insert, Int. Valve Seat (SA630591)
- 1 - Insert, Valve (SA35967)
- 2 - Helicoil (MS9018-05/2-52)
- 4 - Stud (SA401893)
- 4 - Helicoil (MS122121)
- 2 - Helicoil (MS21209-C4-15)
- 1 - Cylinder Stud (SA47006S-A1)
- 1 - Valve, Int. (SA539988)
- 1 - Valve, Exh. (SA643873)
- 2 - Spring-Valve, Outer (SA654441)
- 2 - Spring-Valve, Outer (SA654442)
- 2 - Retainer (SA625393)
- 1 - Rotocoil Assembly (SA629117-1)
- 4 - Key, Valve Spring Outr Retainr (SA24802)
- 1 - Seal (646985)
- 1 - Retainer (SA35971)
- 1 - Piston (SA640518)
- 2 - Shaft, Rocker (SA652984)
- 2 - Washer (SA652947)
- 2 - Bolt (MS90725-12)
- 1 - Valve Cover Black (SA625615BLK)
- 8 - Screw (SA535118)
- 8 - Washer (AN960-416L)
- 8 - Washer (MS35338-44)
- 2 - Ring (SA4003)
- 1 - Ass’y, Ring (SA4705)
- 1 - Ring, Scraper (SA4709)
- 1 - Seal (SA532200)
- 4 - Packing, Push Rod Housing (SA534610)
- 1 - Gasket (SA534857)
- 1 - Gasket (SA536413)
- 1 - Gasket (SA628260)
Reviews
Hard to know how to review this, as I’ve just test run the engine so far, but I’ve used Superior cylinders in the past. My engine actually is mostly chrome refurbs, so this cylinder will likely outlast the rest
Verified Purchase
Superior Millennium Cylinder A47006S-A21P Power Assembly
I did this once for the other cylinder, give me about 1000 hours on the engine and Ill tell you how good they are. They have a good recommendation from my mechanic and that is enough for me. The last cylinders we ECi cemachrome and they lasted 1600 hours and were still holding up with 65-75/80 psi. All cylinders other than Contintenal are seem to make it to TBO. Now that ECi has been bought by the same Chinese people who own Continental Im hoping they will stop making there own cylinders and use the ECi ones.
Im replacing all the cylinders on our O-470R Continental Engine off our 1963 Cessna 182 while we rebuild the engine. Superior has had a very good recommendation, but ask me for a review in 8-10 years when it has over 1000 hours on them, I hope they are as good as the ECi chrome ones that were on the engine last time that got 1600 hours in 28 years.
I ordered this on the assumption I wouldn’t get it for several months, and have a sticky-valves cylinder that may or may not need replacing. I was very surprised when it arrived in just a couple of weeks. All these websites are saying they won’t have any cylinders for months, but Spruce seems to have no problem getting them
Verified Purchase
Superior Millennium Cylinder A47006S-A21P Power Assembly
Q&A
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.
Yes, Superior cylinders come with piston and rings, but will need to be installed.
They do not contain the rocker arms and the shaft is not installed.
Yes, domestic 8130 form is included.
The piston pins are not included. You would want SA539467 (part # 08-11203.)
