{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"8ef32eb2935c","name":"PISTON KIT 87-09 YFZ350 66.50, WOSSNER 8075D250 YAMAHA ATV","sku":"56-W513+250.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":126.52,"formatted":"£126.52"},"summary":"This Wossner forged piston kit features a 66.50mm bore size and is designed for high-performance applications. Engineered in Germany, the piston ensures optimised heat transfer, structural integrity, and uniform bearing surface through its elliptical design. It is suited for applications where durability and precision are required. This kit includes a +2.50 oversize piston. Features include forged construction for improved strength and durability, an elliptical design that distributes thrust loads evenly to prevent piston collapse, and enhanced heat transfer from the combustion chamber to cylinder walls. Made in Germany, the kit includes piston, pin, locks, and ring set. Specifications include a bore size of 66.50mm, actual bore of 66.44mm, stroke of 54.00mm, clearance of 0.06mm, compression ratio of 2-stroke, compression height of 36.00mm, and displacement of 347 cm³. Cross-reference OEM part numbers include Piston Kit Part No: 56-W513+250.WO, Lock P/N: CW16, Pin P/N: WP027, and Ring Set P/N: RSB6650 (x2).","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66.5mm"},{"label":"Variant Id","value":"256638"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W513_2B250_2EWO/5db9e31c9461054a.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W513_2B250_2EWO/5db9e31c9461054a.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W513_2B250_2EWO/a2082ce72ab13195.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W513_2B250_2EWO/e65c0a757d0ed906.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W513_2B250_2EWO/3776230ba7af4c29.jpg"],"description":"This Wossner forged piston kit features a 66.50mm bore size and is designed for high-performance applications. Engineered in Germany, the piston ensures optimised heat transfer, structural integrity, and uniform bearing surface through its elliptical design. It is suited for applications where durability and precision are required. This kit includes a +2.50 oversize piston. Features include forged construction for improved strength and durability, an elliptical design that distributes thrust loads evenly to prevent piston collapse, and enhanced heat transfer from the combustion chamber to cylinder walls. Made in Germany, the kit includes piston, pin, locks, and ring set. Specifications include a bore size of 66.50mm, actual bore of 66.44mm, stroke of 54.00mm, clearance of 0.06mm, compression ratio of 2-stroke, compression height of 36.00mm, and displacement of 347 cm³. Cross-reference OEM part numbers include Piston Kit Part No: 56-W513+250.WO, Lock P/N: CW16, Pin P/N: WP027, and Ring Set P/N: RSB6650 (x2).","descriptionMarkdown":"### Wossner Forged Piston Kit - 66.50mm Bore\n\nEnhance the performance and durability of your compatible Yamaha two-stroke engine with this high-quality Wossner forged piston kit. Engineered in Germany, this piston is designed for demanding applications, offering superior strength, optimized heat transfer, and precise fitment. The kit includes all necessary components for a complete installation.\n\n#### Key Features:\n\n\t\n- Forged Construction: Provides exceptional strength and longevity for high-performance use.\n\t\n- Elliptical Piston Design: Ensures even distribution of thrust loads, preventing piston collapse and promoting uniform bearing surfaces.\n\t\n- Optimized Heat Transfer: Efficiently moves heat from the combustion chamber to the cylinder walls, contributing to consistent engine operation.\n\t\n- German Engineering: Manufactured to exacting standards for reliability and precision.\n\t\n- Complete Kit: Includes the piston, wrist pin, piston locks, and a high-quality ring set.\n\t\n- Oversize Piston: This is a +2.50 oversize piston.\n\n#### Specifications:\n\n\t\n- Bore Size: 66.50mm\n\t\n- Actual Bore: 66.44mm\n\t\n- Stroke: 54.00mm\n\t\n- Clearance: 0.06mm\n\t\n- Compression Ratio: 2-stroke (Wossner and OEM)\n\t\n- Compression Height: 36.00mm\n\t\n- Displacement: 347 cm&sup3;\n\n#### Included Components:\n\n\t\n- Piston\n\t\n- Wrist Pin\n\t\n- Piston Locks (CW16)\n\t\n- Ring Set (RSB6650 x2)","weightGrams":null,"fitments":[],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Pistons & Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/pistons-kits"}],"links":{"page":"https://www.2brosparts.com/products/piston-kit-87-09-yfz350-6650-wossner-8075d250-yamaha-atv","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/8ef32eb2935c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/8ef32eb2935c:1"}},"market":{"country":"GB","countryName":"United Kingdom","locale":"en-gb","currency":"GBP","exchangeRateFromGbp":1,"pricesIncludeUkVat":true,"checkoutTax":null,"delivery":[{"name":"Standard","description":"Orders £15.00–£59.99 · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":4.99,"formatted":"£4.99"},"free":false,"minimumOrder":{"amount":0,"formatted":"£0.00","gbp":0},"weightGrams":null},{"name":"Standard","description":"Orders £60.00 and up · 2–4 business days","carrier":null,"estimatedDays":"2–4 business days","price":{"amount":0,"formatted":"£0.00"},"free":true,"minimumOrder":{"amount":60,"formatted":"£60.00","gbp":60},"weightGrams":null}],"storeUrl":"https://www.2brosparts.com"},"navigate":{"start":"https://www.2brosparts.com/api/agent","search":"https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus}"},"howToBuy":{"summary":"Build a basket for the shopper and give them one checkout link. Every URL is a plain path (no query string) and a GET. Nothing is stored between calls.","checkoutLinkFormat":"https://www.2brosparts.com/api/agent/checkout/GB/{basketKey}:{quantity},{basketKey}:{quantity}","steps":["1. Find products: follow links in these responses, or fetch https://www.2brosparts.com/api/agent/search/GB/{words+joined+with+plus} (e.g. https://www.2brosparts.com/api/agent/search/GB/brake+pads). Every product has a basketKey.","2. Optional check: https://www.2brosparts.com/api/agent/basket/GB/{basketKey}:{quantity},{basketKey}:{quantity} returns stock, totals per delivery option and the checkout link.","3. Give the shopper the checkout link. Opening it fills their basket with exactly these items (replacing what was there) and opens checkout for United Kingdom. They pay on 2brosparts.com through Stripe."],"noFetchNeeded":"You can write the checkout link yourself from basketKeys and quantities; nothing has to be fetched first. Each product also has links.buyOneNow, a ready link for one unit.","stateless":"Nothing is saved on our side. The items part of the URL is the whole basket: to change it, write the link again with the new list.","itemsFormat":"basketKey:quantity pairs joined by commas, e.g. 04f24aad4d68:2,7c1e9a0b3f2d:1. Quantity defaults to 1. Up to 50 products, 100 each.","country":"GB is the shopper's delivery country. Swap it for theirs (US, DE, FR…) in any URL; currency, tax and delivery follow it.","tips":["Put everything the shopper wants in one link.","Optionally add your name as a last path segment on checkout links (…/checkout/GB/<items>/claude) so the sale is credited to you.","The checkout link is for the shopper's browser. Do not open it yourself.","Signed-in trade account holders see their trade prices at checkout."]}}