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✅ Condition
Used vintage condition. This piston shows substantial signs of prior engine use, including carbon deposits, discoloration, oxidation, scratches, surface wear, staining, and residue. Ring grooves and oil drain holes are visible. No piston rings, wrist pin, or other internal parts are included.
Sold as a collectible/display piece or for parts only. Not represented as airworthy or serviceable for aircraft use.
📝 Description
Vintage aircraft engine piston believed to be from a Continental Aerospace Technologies / Teledyne Continental Motors (TCM) opposed aircraft engine family.
The piston measures approximately 5.25 inches in diameter and features a distinctive 4-ring groove configuration along with oil drain holes and a cast aluminum crown.
This 5.25\" bore size is associated with several large Continental aircraft engine families, including:
Continental O-470 / IO-470
Continental IO-520 / TSIO-520
Continental IO-550 / TSIO-550
Engines in these families were used across many well-known general aviation aircraft, including various Cessna 182 Skylane, Cessna 210 Centurion, Beechcraft Bonanza, and other aircraft.
The underside shows the characteristic cast ribbed structure found on large opposed-aircraft-engine pistons. Any casting or part numbers present are faint and should be verified by the buyer from the photos before determining exact engine application.
A great piece for aviation collectors, aircraft mechanics, engine builders, shop displays, man caves, industrial decor, or repurposing into a unique aviation-themed display.
📋 Specifications
Manufacturer/Type: Continental / Teledyne Continental style aircraft engine piston
Application: Vintage aircraft engine
Material: Cast aluminum alloy
Approx. Diameter: 5.25 in.
Approx. Height: 4 in.
Ring Grooves: 4
Design: Opposed aircraft engine piston
Condition: Used / removed from service
Era: Vintage
Exact Part Number: Unknown / not clearly identified
Airworthiness: Not certified or represented as airworthy
📦 What’s Included
1 × Vintage aircraft engine piston
Piston only.
What’s pictured is what you will receive.
⚠️ Notes
Exact Continental engine model compatibility is not guaranteed
Buyer should verify dimensions, casting marks, and application
Heavy carbon/residue is visible inside the piston
Exterior shows oxidation, scratches, staining, and age-related wear
Ring grooves show prior use
No rings included
No wrist pin included
No FAA 8130-3, logbook history, traceability, or airworthiness documentation included
Best suited for collectible, display, educational, restoration reference, or parts purposes
🚚 Shipping
Will be carefully packed and boxed due to the weight and solid metal construction.
🏷️ Hashtags
#ContinentalAircraft #TeledyneContinental #AircraftPiston #AviationParts #VintageAircraft #AircraftEngine #ContinentalO470 #ContinentalIO520 #ContinentalIO550 #Cessna182 #Cessna210 #BeechcraftBonanza #AviationCollectible #AircraftMechanic #VintageAviation
![Vintage Continental Aircraft Engine Piston 5.25\](img-large/g/ShQAAeSwmL1qwTlW/s-l1600/Vintage-Continental-Aircraft-Engine-Piston-5-25-O-.jpg "Vintage Continental Aircraft Engine Piston 5.25\")
