{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"c44c34c3366b","name":"PISTON KIT-4 KZ1000J,R D72.00, WOSSNER K8796D250-4 KAWASAKI","sku":"56-W9934.250.WO","brand":"Wossner","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":793.43,"formatted":"£793.43"},"summary":"Wossner forged piston kit with 72.00mm bore and 71.94mm diameter, offering a +2.5mm oversize fitment. This kit increases engine displacement to 1075-1105 cm³ and provides improved compression and thermal efficiency for four-cylinder engines. Features forged construction for exceptional strength and durability, engineered for efficient heat transfer, an elliptical design for uniform bearing surface during thermal expansion, and even distribution of thrust loads to reduce the risk of piston collapse. Manufactured in Germany and supplied as a set of 4 pistons, pins, rings, and clips. Specifications include: bore 72.00mm, diameter 71.94mm, engine displacement 1075 / 1105 cm³, stroke 66.00 mm, clearance 0.06 mm, compression ratio (Wossner) 1075 cc = 10.30:1 / 1105 cc = 10.50:1, compression ratio (OEM) 9.20:1, dome volume 18.80 cm³, compression height 25.30 mm, theoretical weight 25.30 g, engine cylinders 4, clips P/N CW17, pin P/N WP083, and ring set P/N 720XDS. Cross-reference OEM part numbers include Part No. 56-W9934.250.WO and Wossner Piston K8796D250-4.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"72.00mm"},{"label":"Variant Id","value":"259235"}],"image":"https://www.oro2u.com/media/catalog/product/s/t/stock58181_1.jpg","images":["https://www.oro2u.com/media/catalog/product/s/t/stock58181_1.jpg"],"description":"Wossner forged piston kit with 72.00mm bore and 71.94mm diameter, offering a +2.5mm oversize fitment. This kit increases engine displacement to 1075-1105 cm³ and provides improved compression and thermal efficiency for four-cylinder engines. Features forged construction for exceptional strength and durability, engineered for efficient heat transfer, an elliptical design for uniform bearing surface during thermal expansion, and even distribution of thrust loads to reduce the risk of piston collapse. Manufactured in Germany and supplied as a set of 4 pistons, pins, rings, and clips. Specifications include: bore 72.00mm, diameter 71.94mm, engine displacement 1075 / 1105 cm³, stroke 66.00 mm, clearance 0.06 mm, compression ratio (Wossner) 1075 cc = 10.30:1 / 1105 cc = 10.50:1, compression ratio (OEM) 9.20:1, dome volume 18.80 cm³, compression height 25.30 mm, theoretical weight 25.30 g, engine cylinders 4, clips P/N CW17, pin P/N WP083, and ring set P/N 720XDS. Cross-reference OEM part numbers include Part No. 56-W9934.250.WO and Wossner Piston K8796D250-4.","descriptionMarkdown":"### Wossner Forged Piston Kit - 72.00mm Bore\n\n Upgrade your engine's performance with this high-quality Wossner forged piston kit. Designed for specific Kawasaki four-cylinder engines, this kit features pistons with a 72.00mm bore and a 71.94mm diameter, providing a +2.5mm oversize fitment. This performance enhancement increases engine displacement to approximately 1075 to 1105 cm&sup3;, leading to improved compression and thermal efficiency.\n\n### Key Features:\n\n \n- Forged Construction: Offers exceptional strength and durability for demanding performance.\n \n- Efficient Heat Transfer: Engineered to move heat effectively from the combustion chamber to the cylinder walls.\n \n- Elliptical Design: Ensures a uniform bearing surface during thermal expansion for optimal performance.\n \n- Even Thrust Load Distribution: Reduces the risk of piston collapse by distributing forces evenly.\n \n- German Manufacturing: Built with precision and quality in Germany.\n \n- Complete Kit: Supplied as a set for four cylinders, including pistons, pins, rings, and clips.\n\n### Specifications:\n\n \n- Bore: 72.00mm\n \n- Diameter: 71.94mm\n \n- Engine Displacement: 1075 / 1105 cm&sup3;\n \n- Stroke: 66.00 mm\n \n- Clearance: 0.06 mm\n \n- Compression Ratio (Wossner): 1075 cc = 10.30:1 / 1105 cc = 10.50:1\n \n- Compression Ratio (OEM): 9.20:1\n \n- Dome Volume: 18.80 cm&sup3;\n \n- Compression Height: 25.30 mm\n \n- Theoretical Weight: 25.30 g\n \n- Engine Cylinders: 4\n \n- Clips Part Number: CW17\n \n- Pin Part Number: WP083\n \n- Ring Set Part Number: 720XDS","weightGrams":null,"fitments":[{"make":"KAWASAKI","model":"KZ J 1000","cc":null,"notes":null,"years":"1981–1983"},{"make":"KAWASAKI","model":"KZ R 1000","cc":null,"notes":null,"years":"1981–1983"}],"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-4-kz1000jr-d7200-wossner-k8796d250-4-kawasaki","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/c44c34c3366b:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/c44c34c3366b: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."]}}