{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"ac090d675c11","name":"PISTON KIT 00-06 KTM250 66.40, WOSSNER 8090DC FORGED","sku":"56-W774.C.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":153.68,"formatted":"£153.68"},"summary":"Wossner forged piston kit with a 66.42mm bore for KTM SX250 2000-2002 models. This piston is constructed from high-strength forged material designed to withstand extreme thermal and mechanical conditions in high-performance 2-stroke engines. Features include forged piston construction for enhanced durability and load resistance, engineered heat transfer, elliptical design for consistent bearing surface during thermal expansion, reduced localised pressure points to prevent piston collapse, and precision manufacturing in Germany. Specifications: Bore 66.42mm, actual piston size 66.36mm, stroke 72.00mm, display volume 249cm³, clearance 0.06mm, compression ratio 2-stroke (Wossner and OEM), compression height 38.00mm. Cross-reference OEM part numbers: Piston Kit 8090DC, Lock CW18, Pin WP033, Ring Set RSB6640. Part number 56-W774.C.WO. Weight 306 grams.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66.40mm"},{"label":"Variant Id","value":"257736"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W774_2EC_2EWO/7d57b0ceef4653ae.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W774_2EC_2EWO/7d57b0ceef4653ae.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W774_2EC_2EWO/0d62058b3d707b0e.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W774_2EC_2EWO/1475944d5daa0ed6.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W774_2EC_2EWO/52dd2bdf8f90e855.jpg"],"description":"Wossner forged piston kit with a 66.42mm bore for KTM SX250 2000-2002 models. This piston is constructed from high-strength forged material designed to withstand extreme thermal and mechanical conditions in high-performance 2-stroke engines. Features include forged piston construction for enhanced durability and load resistance, engineered heat transfer, elliptical design for consistent bearing surface during thermal expansion, reduced localised pressure points to prevent piston collapse, and precision manufacturing in Germany. Specifications: Bore 66.42mm, actual piston size 66.36mm, stroke 72.00mm, display volume 249cm³, clearance 0.06mm, compression ratio 2-stroke (Wossner and OEM), compression height 38.00mm. Cross-reference OEM part numbers: Piston Kit 8090DC, Lock CW18, Pin WP033, Ring Set RSB6640. Part number 56-W774.C.WO. Weight 306 grams.","descriptionMarkdown":"### Wossner Forged Piston Kit 66.42mm for KTM 250\n\nThis Wossner piston kit features a 66.42mm bore, offering a +0.02mm oversize for specific KTM 250 engines. Engineered from high-strength forged aluminum, this piston is designed to withstand the intense thermal and mechanical stresses encountered in high-performance two-stroke applications.\n\n### Key Features\n\n- Forged piston construction for superior durability and resistance to extreme loads.\n\n- Optimized design for efficient heat transfer from the combustion chamber to the cylinder wall, promoting consistent operating temperatures.\n\n- Elliptical piston shape ensures a stable bearing surface throughout thermal expansion cycles.\n\n- Reduces localized pressure points, preventing premature piston failure and collapse under stress.\n\n- Precision manufactured in Germany to exacting standards.\n\n### Specifications\n\n- Bore Size: 66.42 mm\n\n- Actual Piston Diameter: 66.36 mm\n\n- Stroke: 72.00 mm\n\n- Displacement Volume: 249 cm&sup3;\n\n- Recommended Piston Clearance: 0.06 mm\n\n- Compression Ratio Type: 2-stroke (compatible with Wossner and OEM specifications)\n\n- Compression Height: 38.00 mm\n\n### Wossner Components Included\n\n- Piston Kit: 8090DC\n\n- Piston Lock Ring: CW18\n\n- Piston Pin: WP033\n\n- Ring Set: RSB6640","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-8090dc-forged","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/ac090d675c11:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/ac090d675c11:1"}},"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."]}}