{"product_id":"technic-round-engine-piston-2851","title":"Technic Round Engine Piston – 2851","description":"\u003cp\u003eBuild or repair a LEGO® Technic engine mechanism with round piston part 2851. This compact cylindrical component has a hollow opening and a small side hole, with a raised rim at one end. It is designed for compatible Technic engine assemblies and moving mechanical builds.\u003c\/p\u003e\u003ch2\u003eRound Piston for Technic Engines\u003c\/h2\u003e\u003cp\u003eThe distinct barrel shape makes part 2851 useful when restoring an engine assembly or selecting parts for a custom mechanism. Check your model instructions for the exact piston design and colour before ordering.\u003c\/p\u003e\u003cp\u003eAvailable in Black, Blue, Bright Light Orange, Dark Bluish Gray, Dark Turquoise, Red and Yellow. Each purchase is for \u003cstrong\u003eone piston\u003c\/strong\u003e in the selected colour, not the separate 20-piece Yellow lot pictured. Browse more \u003ca href=\"\/zh-hans-global\/collections\/parts-lego-technic-pieces\"\u003eLEGO Technic parts\u003c\/a\u003e for related building elements.\u003c\/p\u003e","brand":"LEGO","offers":[{"title":"黑色","offer_id":55255216521549,"sku":"lego2851blacknew","price":9.24,"currency_code":"USD","in_stock":false},{"title":"蓝色","offer_id":55255216619853,"sku":"lego2851bluenew","price":14.73,"currency_code":"USD","in_stock":false},{"title":"亮浅橙色","offer_id":55255216456013,"sku":"lego2851brlorangenew","price":0.29,"currency_code":"USD","in_stock":false},{"title":"深蓝灰色","offer_id":55255216554317,"sku":"lego2851dbgnew","price":13.57,"currency_code":"USD","in_stock":false},{"title":"深绿松石色","offer_id":55255216587085,"sku":"lego2851dturquoisenew","price":12.11,"currency_code":"USD","in_stock":false},{"title":"红色","offer_id":55255216423245,"sku":"lego2851rednew","price":9.58,"currency_code":"USD","in_stock":false},{"title":"黄色","offer_id":55255216488781,"sku":"lego2851yellownew","price":0.17,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0856\/6715\/2205\/files\/lego-2851-technic-round-engine-piston-yellow.jpg?v=1793573971","url":"https:\/\/www.choose-a-brick.com\/zh-hans-global\/products\/technic-round-engine-piston-2851","provider":"www.choose-a-brick.com","version":"1.0","type":"link"}