{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"e1a94e03f2b7","name":"PISTON KIT 12-18 CRF150R 66.00, 8861DA WOSSNER, 13101-KSE-A70","sku":"56-W914.A.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":false,"stock":0,"price":{"amount":155.36,"formatted":"£155.36"},"summary":"Wossner forged piston kit 8861DA features a 66mm bore (measured at 65.95mm) with a hard Teflon skirt coating and advanced thermal engineering. This piston offers a reliable fit, excellent durability, and consistent performance. It is manufactured in Germany and optimized for OEM compatibility. Features include forged construction for superior strength and longevity, an elliptical profile for uniform bearing surface under heat expansion, enhanced heat transfer from the combustion chamber to cylinder walls, and a Teflon skirt coating for optimal fit and conformity to the cylinder bore. It reduces localized pressure to prevent piston collapse. Specifications include a bore of 66mm (measured 65.95mm), display volume of 149 cm&sup3;, stroke of 43.80mm, clearance of 0.05mm, compression height of 20.60mm, Wossner compression ratio of OEM, OEM compression ratio of 11.70:1, dome volume of -1.40 cm&sup3;, part number 56-W914.A.WO (Wossner 8861DA), ring set 660XKS, lock P/N CW14, and pin P/N WP058. Cross-reference OEM part number is 13101-KSE-A70.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"66.00mm"},{"label":"Variant Id","value":"258215"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W914_2EA_2EWO/111c5e3dec8a2251.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W914_2EA_2EWO/111c5e3dec8a2251.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W914_2EA_2EWO/75b0ccb2906719f2.jpg"],"description":"Wossner forged piston kit 8861DA features a 66mm bore (measured at 65.95mm) with a hard Teflon skirt coating and advanced thermal engineering. This piston offers a reliable fit, excellent durability, and consistent performance. It is manufactured in Germany and optimized for OEM compatibility. Features include forged construction for superior strength and longevity, an elliptical profile for uniform bearing surface under heat expansion, enhanced heat transfer from the combustion chamber to cylinder walls, and a Teflon skirt coating for optimal fit and conformity to the cylinder bore. It reduces localized pressure to prevent piston collapse. Specifications include a bore of 66mm (measured 65.95mm), display volume of 149 cm&sup3;, stroke of 43.80mm, clearance of 0.05mm, compression height of 20.60mm, Wossner compression ratio of OEM, OEM compression ratio of 11.70:1, dome volume of -1.40 cm&sup3;, part number 56-W914.A.WO (Wossner 8861DA), ring set 660XKS, lock P/N CW14, and pin P/N WP058. Cross-reference OEM part number is 13101-KSE-A70.","descriptionMarkdown":"### Wossner 8861DA Forged Piston Kit 66mm Standard Bore\n\nThis Wossner forged piston kit, part number 8861DA, is engineered for optimal performance and durability. Designed as a standard size with a 66mm bore, it features an advanced hard Teflon skirt coating and superior thermal engineering for consistent operation and extended lifespan. Manufactured in Germany, this piston is built to OEM specifications for seamless integration.\n\n**Key Features:**\n\n- Forged construction for exceptional strength and longevity.\n\n- Elliptical piston profile ensures a uniform bearing surface even under extreme heat expansion.\n\n- Optimized thermal design enhances heat transfer from the combustion chamber to the cylinder walls.\n\n- Teflon skirt coating provides a precise fit and conforms smoothly to the cylinder bore.\n\n- Reduces localized pressure points, preventing piston collapse.\n\n- Premium quality manufacturing originating from Germany.\n\n**Specifications:**\n\n- Bore Size: 66mm (Actual measurement: 65.95mm)\n\n- Displacement Volume: 149 cm&sup3;\n\n- Stroke: 43.80mm\n\n- Piston Clearance: 0.05mm\n\n- Compression Height: 20.60mm\n\n- Wossner Compression Ratio: OEM\n\n- OEM Compression Ratio: 11.70:1\n\n- Dome Volume: -1.40 cm&sup3;\n\n- Wossner Part Number: 8861DA\n\n- Included Ring Set: 660XKS\n\n- Lock Piston Pin Retainer: CW14\n\n- Piston Pin: WP058\n\n**Cross-Reference OEM Part Numbers:**\n\n- 13101-KSE-A70","weightGrams":null,"fitments":[{"make":"HONDA","model":"CRF 150","cc":null,"notes":null,"years":"2012–2019"},{"make":"HONDA","model":"CRF 150R","cc":null,"notes":null,"years":"2012–2025"}],"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-12-18-crf150r-6600-8861da-wossner-13101-kse-a70","buyOneNow":null,"basketWithThis":null}},"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."]}}