{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"da2d6a05e826","name":"PISTON KIT 95.00 FORGED 2003-2009 YAMAHA YZ450F FX-40045-C NAMURA","sku":"56-W4785.C.NT.F","brand":"Namura Technologies","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":11,"price":{"amount":149.94,"formatted":"£149.94"},"summary":"A forged aluminum piston kit with a 95.00 mm bore size and grade C piston. This kit is designed as a standard-compression replacement and features a hard-anodised crown and MOS2-coated skirt. It includes piston rings, wrist pin, and circlips for reliable service. The piston is CNC-machined for consistent volume and finish. Specifications include a nominal bore size of 95.00 mm, a piston diameter of 94.97 mm (grade C), and a compression ratio of 12.5:1. This is a single-cylinder, four-stroke application. Manufacturer part number FX-40045-C. Cross-reference OEM part numbers include 5TJ-11631-00, 5TA-11631-00, and 2S2-11631-20. Manufactured by Namura Technologies.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"95mm"},{"label":"Variant Id","value":"281074"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4785_2EC_2ENT_2EF/fc289041d22cb456.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4785_2EC_2ENT_2EF/fc289041d22cb456.jpg"],"description":"A forged aluminum piston kit with a 95.00 mm bore size and grade C piston. This kit is designed as a standard-compression replacement and features a hard-anodised crown and MOS2-coated skirt. It includes piston rings, wrist pin, and circlips for reliable service. The piston is CNC-machined for consistent volume and finish. Specifications include a nominal bore size of 95.00 mm, a piston diameter of 94.97 mm (grade C), and a compression ratio of 12.5:1. This is a single-cylinder, four-stroke application. Manufacturer part number FX-40045-C. Cross-reference OEM part numbers include 5TJ-11631-00, 5TA-11631-00, and 2S2-11631-20. Manufactured by Namura Technologies.","descriptionMarkdown":"### Namura Technologies Forged Piston Kit 95.00mm\n\nThis high-quality forged aluminium piston kit is engineered as a direct replacement for the standard 95.00 mm bore. Designed for reliable service, this kit ensures consistent performance and durability for your vehicle.\n\n#### Key Features\n\n\t\n- Forged Aluminium Construction: Offers superior strength and longevity compared to cast pistons.\n\t\n- Hard-Anodised Crown: Resists high temperatures and carbon buildup, extending piston life.\n\t\n- MOS2 (Moly) Skirt Coating: Significantly reduces friction during the critical break-in period, promoting faster and smoother running-in.\n\t\n- CNC-Machined Dome: Guarantees precise volume and a consistent surface finish for optimal combustion.\n\t\n- Complete Kit: Includes all necessary components for installation: piston, piston rings, wrist pin, and circlips.\n\t\n- Size Grade C: Specifically designed to match Yamaha's A/B/C cylinder grading system, ensuring a precise fit.\n\n#### Specifications\n\n\t\n- Nominal Bore Size: 95.00 mm (Standard)\n\t\n- Piston Diameter (Grade C): 94.97 mm\n\t\n- Compression Ratio: 12.5:1 (Standard)\n\t\n- Engine Type: Single-cylinder, four-stroke\n\t\n- Manufacturer Part Number: FX-40045-C","weightGrams":null,"fitments":[{"make":"GAS-GAS","model":"EC F 250","cc":null,"notes":null,"years":"2013–2015"},{"make":"GAS-GAS","model":"EC F 450","cc":null,"notes":null,"years":"2013–2015"},{"make":"YAMAHA","model":"WR 450F","cc":null,"notes":null,"years":"2003–2015"},{"make":"YAMAHA","model":"WRF 450","cc":null,"notes":null,"years":"2003–2015"},{"make":"YAMAHA","model":"YZ 450F","cc":null,"notes":null,"years":"2003–2009"},{"make":"YAMAHA","model":"YZF 450","cc":null,"notes":null,"years":"2003–2009"}],"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-9500-forged-2003-2009-yamaha-yz450f-fx-40045-c-namura","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/da2d6a05e826:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/da2d6a05e826:1"}},"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."]}}