{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f8080930101e","name":"PISTON KIT KTM 400 EXC 89.00, FORGED WOSSNER 8580DA 57530007000","sku":"56-W4733+00A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":220.73,"formatted":"£220.73"},"summary":"Wossner forged piston kit with 89mm bore size (actual bore 88.94mm) and 398 cm³ displacement. Designed for high-performance applications, this piston offers superior strength and optimized heat transfer. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany for precision and durability. Specifications include a 64.00mm stroke, 0.06mm clearance, OEM compression ratio of 11.00:1, +7.00 cm³ dome volume, and 27.50mm compression height. Includes lock part number CW20, pin part number WP038, and ring set part number 890XSY. OEM cross-reference part number 57530007000. Part number 56-W4733+00A.WO.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"89mm"},{"label":"Variant Id","value":"255980"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4733_2B00A_2EWO/b5976946f04ba9f5.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4733_2B00A_2EWO/b5976946f04ba9f5.jpg"],"description":"Wossner forged piston kit with 89mm bore size (actual bore 88.94mm) and 398 cm³ displacement. Designed for high-performance applications, this piston offers superior strength and optimized heat transfer. The elliptical design ensures a uniform bearing surface under heat expansion, reducing localized pressure and preventing piston collapse. Manufactured in Germany for precision and durability. Specifications include a 64.00mm stroke, 0.06mm clearance, OEM compression ratio of 11.00:1, +7.00 cm³ dome volume, and 27.50mm compression height. Includes lock part number CW20, pin part number WP038, and ring set part number 890XSY. OEM cross-reference part number 57530007000. Part number 56-W4733+00A.WO.","descriptionMarkdown":"### Wossner Forged Piston Kit\n\nEnhance the performance and durability of your engine with this premium Wossner forged piston kit. Engineered for high-performance applications, this piston offers superior strength and optimized heat transfer capabilities. Its unique elliptical design ensures uniform bearing surface distribution even under extreme heat expansion, effectively reducing localized pressure and preventing potential piston collapse for greater reliability.\n\n**Key Features:**\n\n\t\n- Forged construction provides exceptional strength and longevity.\n\t\n- Designed for optimized heat transfer to cylinder walls, improving overall engine efficiency.\n\t\n- Features an elliptical shape to ensure even thrust load distribution.\n\t\n- Precision manufactured in Germany, guaranteeing high quality and dependable performance.\n\n**Specifications:**\n\n\t\n- Bore Size: 89.00mm\n\t\n- Actual Bore: 88.94mm\n\t\n- Display (cm&sup3;): 398\n\t\n- Stroke (mm): 64.00\n\t\n- Clearance (mm): 0.06\n\t\n- Wossner Compression Ratio: OEM\n\t\n- OEM Compression Ratio: 11.00:1\n\t\n- Dome Volume (cm&sup3;): +7.00\n\t\n- Compression Height (mm): 27.50\n\t\n- Lock Part Number: CW20\n\t\n- Pin Part Number: WP038\n\t\n- Ring Set Part Number: 890XSY\n\n**Cross-Reference OEM Part Numbers:**\n\n\t\n- 57530007000","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-ktm-400-exc-8900-forged-wossner-8580da-57530007000","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f8080930101e:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f8080930101e: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."]}}