{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e1ce6074a989","name":"PISTON KIT 00-06 KTM250 66.40, WOSSNER 8090DA FORGED","sku":"56-W774.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":153.68,"formatted":"£153.68"},"summary":"Wossner 8090DA forged piston kit with a 66.40mm bore size. Features forged piston construction for superior strength and durability. Optimised for effective heat transfer from the combustion chamber to the cylinder wall. The elliptical design maintains a consistent bearing surface under thermal expansion and distributes thrust loads evenly to minimise localised stress and prevent piston collapse. Made in Germany with high-precision manufacturing. Specifications include: Bore 66.40 mm, Actual piston size 66.34 mm, Stroke 72.00 mm, Display volume 249 cm³, Clearance 0.06 mm, Compression ratio 2-stroke (Wossner and OEM), Compression height 38.00 mm. Cross-reference OEM part numbers: Piston Kit 8090DA, Lock CW18, Pin WP033, Ring Set RSB6640, Part No: 56-W774.A.WO, 774M06640. Weight 300g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66.40mm"},{"label":"Variant Id","value":"257732"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock56678_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock56678_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56678_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56678_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock56678_4.jpg"],"description":"Wossner 8090DA forged piston kit with a 66.40mm bore size. Features forged piston construction for superior strength and durability. Optimised for effective heat transfer from the combustion chamber to the cylinder wall. The elliptical design maintains a consistent bearing surface under thermal expansion and distributes thrust loads evenly to minimise localised stress and prevent piston collapse. Made in Germany with high-precision manufacturing. Specifications include: Bore 66.40 mm, Actual piston size 66.34 mm, Stroke 72.00 mm, Display volume 249 cm³, Clearance 0.06 mm, Compression ratio 2-stroke (Wossner and OEM), Compression height 38.00 mm. Cross-reference OEM part numbers: Piston Kit 8090DA, Lock CW18, Pin WP033, Ring Set RSB6640, Part No: 56-W774.A.WO, 774M06640. Weight 300g.","descriptionMarkdown":"### Wossner Forged Piston Kit - 66.40mm Bore\n\nEnhance the performance and durability of your engine with this Wossner forged piston kit. Designed for high-performance applications, this kit features a 66.40mm bore and is constructed using advanced forging techniques for superior strength and heat resistance.\n\n#### Key Features\n\n\t\n- Forged Construction: Provides exceptional strength and durability, capable of withstanding extreme operating conditions.\n\t\n- Optimized Heat Transfer: Engineered for efficient heat management, ensuring optimal temperature regulation within the combustion chamber and cylinder wall.\n\t\n- Elliptical Design: Maintains a consistent bearing surface even under thermal expansion, promoting smoother operation and reduced wear.\n\t\n- Even Thrust Load Distribution: Minimizes localized stress and prevents piston collapse by distributing thrust loads uniformly.\n\t\n- High-Precision Manufacturing: Made in Germany, guaranteeing exacting standards and reliable performance.\n\n#### Specifications\n\n\t\n- Bore: 66.40 mm\n\t\n- Actual Piston Size: 66.34 mm\n\t\n- Stroke: 72.00 mm\n\t\n- Displacement Volume: 249 cm&sup3;\n\t\n- Piston Clearance: 0.06 mm\n\t\n- Compression Ratio: Compatible with 2-stroke (Wossner and OEM) configurations\n\t\n- Compression Height: 38.00 mm\n\n#### Component Details\n\n\t\n- Piston Kit Reference: 8090DA\n\t\n- Lock Type: CW18\n\t\n- Piston Pin: WP033\n\t\n- Ring Set: RSB6640\n\t\n- Wossner Part Number: \n\t\n- Manufacturer Part Equivalent: 774M06640","weightGrams":null,"fitments":[{"make":"KTM","model":"250 EXC","cc":null,"notes":null,"years":"2000–2006"},{"make":"KTM","model":"250 MXC","cc":null,"notes":null,"years":"2000–2005"},{"make":"KTM","model":"250 SX","cc":null,"notes":null,"years":"2000–2002"},{"make":"KTM","model":"250 SXS","cc":null,"notes":null,"years":"2000–2002"}],"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-00-06-ktm250-6640-wossner-8090da-forged","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/e1ce6074a989:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/e1ce6074a989:1"}},"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."]}}