{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"f47206852e5c","name":"PISTON KIT 98-99 YZF400 94.00, FORGED WOSSNER 8603D200","sku":"56-W4649_200.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":220.78,"formatted":"£220.78"},"summary":"Wossner 94mm Bore Piston Kit (Part No. 8603D200) is a high-performance forged piston designed for Yamaha YZ400F and WR400F models. It enhances heat transfer within the combustion chamber and features an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance. Features include high-strength forged piston construction, optimized heat transfer for improved combustion efficiency, elliptical design for even thrust load distribution, and manufacturing in Germany. Specifications: Bore Size 94mm, Actual Bore Diameter 93.95mm, Compression Ratio OEM 11.0:1, Displacement 290cc, Stroke 61.20mm, Clearance 0.06mm, Dome Volume -4.80cm&sup3;, Compression Height 23.00mm. Cross-Reference OEM Part Numbers: Lock P/N CW18, Pin P/N WP053, Ring Set P/N 940XSY.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"94mm"},{"label":"Variant Id","value":"255814"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4649_5F200_2EWO/f29d906b7feee53a.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4649_5F200_2EWO/f29d906b7feee53a.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4649_5F200_2EWO/7a5583a39c9c1e22.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4649_5F200_2EWO/5dfd43436ca9e299.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4649_5F200_2EWO/dc4558481ece8a9c.jpg"],"description":"Wossner 94mm Bore Piston Kit (Part No. 8603D200) is a high-performance forged piston designed for Yamaha YZ400F and WR400F models. It enhances heat transfer within the combustion chamber and features an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance. Features include high-strength forged piston construction, optimized heat transfer for improved combustion efficiency, elliptical design for even thrust load distribution, and manufacturing in Germany. Specifications: Bore Size 94mm, Actual Bore Diameter 93.95mm, Compression Ratio OEM 11.0:1, Displacement 290cc, Stroke 61.20mm, Clearance 0.06mm, Dome Volume -4.80cm&sup3;, Compression Height 23.00mm. Cross-Reference OEM Part Numbers: Lock P/N CW18, Pin P/N WP053, Ring Set P/N 940XSY.","descriptionMarkdown":"### Wossner 94mm Bore Piston Kit\n\nThe Wossner 94mm Bore Piston Kit (Part No. 8603D200) is a high-performance forged piston designed for select Yamaha models. Engineered for superior strength and durability, this piston enhances heat transfer within the combustion chamber and features an elliptical design to ensure even load distribution, reducing localized pressure and preventing piston collapse. Manufactured in Germany, this piston maintains the OEM compression ratio for reliable engine performance.\n\n**Key Features:**\n\n\t\n- High-strength forged piston construction\n\t\n- Optimized heat transfer for improved combustion efficiency\n\t\n- Elliptical design for even thrust load distribution\n\t\n- Manufactured in Germany\n\t\n- Maintains OEM compression ratio\n\n**Specifications:**\n\n\t\n- Bore Size: 94mm\n\t\n- Actual Bore Diameter: 93.95mm\n\t\n- Compression Ratio: OEM\n\t\n- OEM Compression Ratio: 11.0:1\n\t\n- Displacement: 290cc\n\t\n- Stroke: 61.20mm\n\t\n- Clearance: 0.06mm\n\t\n- Dome Volume: -4.80cm&sup3;\n\t\n- Compression Height: 23.00mm\n\n**Included Components:**\n\n\t\n- Lock P/N: CW18\n\t\n- Pin P/N: WP053\n\t\n- Ring Set P/N: 940XSY","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-98-99-yzf400-9400-forged-wossner-8603d200","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/f47206852e5c:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/f47206852e5c: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."]}}