{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"737aec2df9bf","name":"PISTON KIT 06-11 YFM700 HC 102, WOSSNER 8673DA RAPTOR 1S3-11631-10-00","sku":"56-W4903+000.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":242.76,"formatted":"£242.76"},"summary":"The Wossner 8673DA forged piston kit is a high-compression component manufactured in Germany. This piston features enhanced heat transfer and structural durability, with an elliptical design that distributes pressure evenly and prevents collapse during thermal expansion. Specifications include a 686 cm&sup3; displacement, 84.00 mm stroke, 0.06 mm clearance, 27.50 mm compression height, +7.10 cm&sup3; dome volume, and an 11.00:1 Wossner compression ratio compared to the OEM 9.20:1. Cross-reference OEM part numbers include Piston: 8673DA, Lock: NCW23, Pin: WP024, Ring Set: 1020XSU, Part No.: 56-W4903+000.WO, and OEM Reference: 1S3-11631-10-00, 4903M10200. The theoretical weight is not specified.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"102mm"},{"label":"Variant Id","value":"256335"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock55281_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock55281_1.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55281_2.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55281_3.jpg","https://www.oro2u.com/media/catalog/product/s/t/stock55281_4.jpg"],"description":"The Wossner 8673DA forged piston kit is a high-compression component manufactured in Germany. This piston features enhanced heat transfer and structural durability, with an elliptical design that distributes pressure evenly and prevents collapse during thermal expansion. Specifications include a 686 cm&sup3; displacement, 84.00 mm stroke, 0.06 mm clearance, 27.50 mm compression height, +7.10 cm&sup3; dome volume, and an 11.00:1 Wossner compression ratio compared to the OEM 9.20:1. Cross-reference OEM part numbers include Piston: 8673DA, Lock: NCW23, Pin: WP024, Ring Set: 1020XSU, Part No.: 56-W4903+000.WO, and OEM Reference: 1S3-11631-10-00, 4903M10200. The theoretical weight is not specified.","descriptionMarkdown":"### Wossner 8673DA Forged High-Compression Piston Kit\n\nUpgrade your ATV's performance with the Wossner 8673DA forged piston kit. Engineered in Germany for superior durability and strength, this high-compression piston is designed to significantly increase your engine's power output. Its advanced elliptical design ensures even pressure distribution and superior heat transfer, preventing piston collapse even under extreme thermal expansion.\n\n#### Key Features:\n\n\t\n- Forged high-compression piston for enhanced durability and power\n\t\n- Optimized for efficient heat transfer to cylinder walls\n\t\n- Elliptical piston design for even pressure distribution\n\t\n- Reduces localized stress and minimizes risk of piston collapse\n\t\n- German manufacturing ensures exceptional quality and reliability\n\n#### Specifications:\n\n\t\n- Displacement: 686 cm&sup3;\n\t\n- Stroke: 84.00 mm\n\t\n- Piston Clearance: 0.06 mm\n\t\n- Compression Height: 27.50 mm\n\t\n- Dome Volume: +7.10 cm&sup3;\n\t\n- Wossner Compression Ratio: 11.00:1\n\t\n- Original Equipment Manufacturer (OEM) Compression Ratio: 9.20:1\n\n#### Included Components:\n\n\t\n- Piston: 8673DA\n\t\n- Lock: NCW23\n\t\n- Pin: WP024\n\t\n- Ring Set: 1020XSU","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-06-11-yfm700-hc-102-wossner-8673da-raptor-1s3-11631-10-00","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/737aec2df9bf:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/737aec2df9bf: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."]}}