{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"fa9b49ad643c","name":"PISTON KIT 01-04 YFM660 100 A, WOSSNER 8507DA YAMAHA ATV 3YF-11631-00-X0","sku":"56-W8507+00A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":220.73,"formatted":"£220.73"},"summary":"Wossner Piston Kit 56-W8507+00A.WO. Features a 100.00 mm bore and 9.20:1 OEM compression ratio. Forged construction for superior strength and reliability. Engineered for optimal heat transfer and minimal stress under thermal expansion with an elliptical design that distributes thrust loads evenly and prevents piston collapse. Manufactured in Germany. Specifications include 99.93 mm measured bore, 0.07 mm clearance, -0.30 cm&sup3; dome volume, 27.00 mm compression height, 660 cm&sup3; displacement, and 84.00 mm stroke. Piston Kit Model: 8507DA (STD). Cross-Reference OEM Part Numbers: 3YF-11631-00-X0, 4966M10000, 01.2660.000.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"100.00mm"},{"label":"Variant Id","value":"258040"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W8507_2B00A_2EWO/bab964e9bab359f5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W8507_2B00A_2EWO/bab964e9bab359f5.jpg"],"description":"Wossner Piston Kit 56-W8507+00A.WO. Features a 100.00 mm bore and 9.20:1 OEM compression ratio. Forged construction for superior strength and reliability. Engineered for optimal heat transfer and minimal stress under thermal expansion with an elliptical design that distributes thrust loads evenly and prevents piston collapse. Manufactured in Germany. Specifications include 99.93 mm measured bore, 0.07 mm clearance, -0.30 cm&sup3; dome volume, 27.00 mm compression height, 660 cm&sup3; displacement, and 84.00 mm stroke. Piston Kit Model: 8507DA (STD). Cross-Reference OEM Part Numbers: 3YF-11631-00-X0, 4966M10000, 01.2660.000.","descriptionMarkdown":"### Wossner 100mm Piston Kit\n\nEnhance your Yamaha's performance with this high-quality Wossner Piston Kit. Engineered for optimal heat transfer and durability, this piston is forged in Germany to exacting standards. Its advanced design helps to minimize stress and maximize efficiency, making it an ideal upgrade for your motorcycle or ATV.\n\n### Key Features:\n\n \n- Forged construction for superior strength and reliability.\n \n- Designed for optimal combustion chamber heat transfer.\n \n- Elliptical piston design ensures even thrust load distribution and prevents collapse.\n \n- Manufactured in Germany for exceptional quality.\n\n### Specifications:\n\n \n- Bore: 100.00 mm\n \n- Measured Bore: 99.93 mm\n \n- Clearance: 0.07 mm\n \n- Compression Ratio: OEM\n \n- OEM Compression Ratio: 9.20:1\n \n- Dome Volume: -0.30 cm&sup3;\n \n- Compression Height: 27.00 mm\n \n- Display: 660 cm&sup3;\n \n- Hub Stroke: 84.00 mm\n \n- Piston Kit Model: 8507DA (STD)\n\n### Cross-Reference OEM Part Numbers:\n\n \n- 3YF-11631-00-X0\n \n- 4966M10000\n \n- 01.2660.000","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-01-04-yfm660-100-a-wossner-8507da-yamaha-atv-3yf-11631-00-x0","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/fa9b49ad643c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/fa9b49ad643c: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."]}}