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Ariel Square Four 4G MK1 & MK11 Piston Set & Liners IMD Piston Co. England - Engine & Transmission from Classic Bike Parts Cheshire UK
![1948 Ariel 4G Square Four 1000 for sale on BaT Auctions - closed on February 21, 2023 (Lot #99,057) | Bring a Trailer 1948 Ariel 4G Square Four 1000 for sale on BaT Auctions - closed on February 21, 2023 (Lot #99,057) | Bring a Trailer](https://bringatrailer.com/wp-content/uploads/2022/03/1948_ariel_square-four-model-4g-1000_20230212_120141-04220.jpg?fit=940%2C626)
1948 Ariel 4G Square Four 1000 for sale on BaT Auctions - closed on February 21, 2023 (Lot #99,057) | Bring a Trailer
![39-Years-Owned 1953 Ariel Square Four MkII for sale on BaT Auctions - sold for $30,550 on October 29, 2022 (Lot #88,971) | Bring a Trailer 39-Years-Owned 1953 Ariel Square Four MkII for sale on BaT Auctions - sold for $30,550 on October 29, 2022 (Lot #88,971) | Bring a Trailer](https://bringatrailer.com/wp-content/uploads/2022/09/IMG_1116-25080.jpg?fit=940%2C627)