![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
![No Reserve: 35-Years-Owned 1951 Ariel Square Four for sale on BaT Auctions - sold for $23,000 on March 1, 2019 (Lot #16,725) | Bring a Trailer No Reserve: 35-Years-Owned 1951 Ariel Square Four for sale on BaT Auctions - sold for $23,000 on March 1, 2019 (Lot #16,725) | Bring a Trailer](https://bringatrailer.com/wp-content/uploads/2019/02/1951_ariel_mk_1_square_four_15492981896e7dff9f98764daIMGP0370.jpg?fit=2048%2C1365)
No Reserve: 35-Years-Owned 1951 Ariel Square Four for sale on BaT Auctions - sold for $23,000 on March 1, 2019 (Lot #16,725) | Bring a Trailer
![Ariel Square Four 4G MK1 & MK11 Piston Set & Liners IMD Piston Co. England - Engine & Transmission from Classic Bike Parts Cheshire UK Ariel Square Four 4G MK1 & MK11 Piston Set & Liners IMD Piston Co. England - Engine & Transmission from Classic Bike Parts Cheshire UK](https://classicbikepartscheshire.com/images/ariel-square-four-4g-mk1-mk11-piston-set-liners-imd-piston-co-england-p3627-4738_image.jpg)
Ariel Square Four 4G MK1 & MK11 Piston Set & Liners IMD Piston Co. England - Engine & Transmission from Classic Bike Parts Cheshire UK
![1955 Ariel Square Four for sale on BaT Auctions - sold for $17,013 on June 13, 2022 (Lot #76,002) | Bring a Trailer 1955 Ariel Square Four for sale on BaT Auctions - sold for $17,013 on June 13, 2022 (Lot #76,002) | Bring a Trailer](https://bringatrailer.com/wp-content/uploads/2022/04/1955_ariel_square-4_2022-04-24-012-05437.jpg?fit=940%2C626)
1955 Ariel Square Four for sale on BaT Auctions - sold for $17,013 on June 13, 2022 (Lot #76,002) | Bring a Trailer
![1952 Ariel Square Four for sale on BaT Auctions - closed on September 27, 2019 (Lot #23,336) | Bring a Trailer 1952 Ariel Square Four for sale on BaT Auctions - closed on September 27, 2019 (Lot #23,336) | Bring a Trailer](https://bringatrailer.com/wp-content/uploads/2019/08/15687361299f98764daimage4-e1568753355184.jpeg?fit=940%2C627)