{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"66ae2717d527","name":"PISTON KIT YZ 250F 2019 76.96 A, WOSSNER 8957DA, B7B-11631-00-00","sku":"56-W8812.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":115.3,"formatted":"£115.30"},"summary":"Wossner Forged Piston Kit 8957DA is engineered for strength, efficient heat transfer, and consistent load distribution. Its elliptical design minimizes localized stress and prevents piston collapse under high-performance conditions. Manufactured in Germany, this forged construction enhances durability. Specifications include a 77mm (STD) piston size, kit part number 56-W8812.A.WO, and Wossner part number 8957DA. Cross-reference OEM part number B7B-11631-00-00.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"76.96mm"},{"label":"Variant Id","value":"288406"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W8812_2EA_2EWO/165970088b843f4d.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W8812_2EA_2EWO/165970088b843f4d.jpg"],"description":"Wossner Forged Piston Kit 8957DA is engineered for strength, efficient heat transfer, and consistent load distribution. Its elliptical design minimizes localized stress and prevents piston collapse under high-performance conditions. Manufactured in Germany, this forged construction enhances durability. Specifications include a 77mm (STD) piston size, kit part number 56-W8812.A.WO, and Wossner part number 8957DA. Cross-reference OEM part number B7B-11631-00-00.","descriptionMarkdown":"### Wossner Forged Piston Kit for Yamaha YZ250F\n\n This Wossner Forged Piston Kit features a standard 77mm bore, meticulously engineered in Germany for high-performance applications. The forged construction provides superior strength and durability, while the advanced design promotes efficient heat transfer to the cylinder walls. Its unique elliptical skirt profile is crucial for minimizing localized stress and ensuring even thrust load distribution, which helps prevent piston collapse even under demanding operating conditions.\n\n### Key Features:\n\n \n- Forged construction for enhanced strength and longevity.\n \n- Optimized for efficient combustion heat transfer.\n \n- Elliptical skirt design for uniform thrust load distribution.\n \n- Precision manufactured in Germany.\n\n### Specifications:\n\n \n- Piston Size: 77mm (STD)\n \n- Wossner Part Number: 8957DA\n \n- Piston Type: Forged\n\n### Cross-Reference OEM Part Number:\n\n \n- B7B-11631-00-00","weightGrams":null,"fitments":[{"make":"FANTIC","model":"XEF 250","cc":null,"notes":null,"years":"2021–2024"},{"make":"FANTIC","model":"XXF 250","cc":null,"notes":null,"years":"2022–2024"},{"make":"YAMAHA","model":"WR 250F","cc":null,"notes":null,"years":"2020–2025"},{"make":"YAMAHA","model":"YZ 250F","cc":null,"notes":null,"years":"2019–2025"},{"make":"YAMAHA","model":"YZ 250FX","cc":null,"notes":null,"years":"2020–2025"},{"make":"YAMAHA","model":"YZF 250","cc":null,"notes":null,"years":"2018–2019"}],"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-yz-250f-2019-7696-a-wossner-8957da-b7b-11631-00-00","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/66ae2717d527:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/66ae2717d527:1"}},"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."]}}