{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"692ea9ea9e9f","name":"PISTON KIT 74.00 CR 9.5:1 YFM250RX 08-13, XT250 13-19, WISECO 4951M07400 YAMAHA ATV","sku":"56-W4951.7400.WI","brand":"Wiseco","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":1,"price":{"amount":213.23,"formatted":"£213.23"},"summary":"The Wiseco forged piston kit features a 74.00mm bore and a 9.5:1 compression ratio. This high-performance piston is forged for strength and durability, with a moly skirt coating to reduce friction and wear. It is manufactured in the USA and serves as a direct OEM replacement. Specifications include a displacement of 249 cc, an actual bore diameter of 73.95mm, and a stroke of 58.00mm. The kit includes a piston, ring set (2913XA), locks (CW17), and pin (S688). Part number 4951M07400.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"74mm"},{"label":"Variant Id","value":"256428"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4951_2E7400_2EWI/35bbb89e017295af.png","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W4951_2E7400_2EWI/35bbb89e017295af.png"],"description":"The Wiseco forged piston kit features a 74.00mm bore and a 9.5:1 compression ratio. This high-performance piston is forged for strength and durability, with a moly skirt coating to reduce friction and wear. It is manufactured in the USA and serves as a direct OEM replacement. Specifications include a displacement of 249 cc, an actual bore diameter of 73.95mm, and a stroke of 58.00mm. The kit includes a piston, ring set (2913XA), locks (CW17), and pin (S688). Part number 4951M07400.","descriptionMarkdown":"### Wiseco 74.00mm Forged Piston Kit 9.5:1 Compression\n\nEnhance your motorcycle's performance and reliability with the Wiseco 74.00mm Forged Piston Kit. This high-strength, direct replacement piston is engineered for superior durability and efficiency, featuring a precision moly skirt coating to minimize friction and wear for extended engine life. Manufactured with meticulous in-house control over forging and machining processes, this piston is built to meet demanding performance standards. Proudly made in the USA, it ensures top-tier quality and exceptional performance for your engine.\n\n**Key Features:**\n\n\t\n- Forged Piston: Offers exceptional strength, resilience against impact, and resistance to fatigue for demanding applications.\n\t\n- Moly Skirt Coating: Reduces friction and improves wear resistance, contributing to a longer piston and cylinder life.\n\t\n- In-House Manufacturing: Guarantees full control over the forging and machining processes for consistent quality.\n\t\n- Direct OEM Replacement: Designed for a seamless fit and function as a direct replacement for original equipment.\n\t\n- Made in USA: Ensures adherence to high manufacturing standards and quality control.\n\n**Specifications:**\n\n\t\n- Displacement: 249 cc\n\t\n- Bore (Standard): 74.00 mm\n\t\n- Actual Bore Diameter: 73.95 mm\n\t\n- Stroke: 58.00 mm\n\t\n- Compression Ratio (Actual): 9.5:1\n\t\n- Skirt Coating: Moly\n\t\n- Bore Oversize: STD","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"XT 250","cc":null,"notes":null,"years":"2013–2020"},{"make":"YAMAHA","model":"YFM RAPTOR 250","cc":null,"notes":null,"years":"2008–2013"}],"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-7400-cr-951-yfm250rx-08-13-xt250-13-19-wiseco-4951m07400-yamaha-atv","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/692ea9ea9e9f:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/692ea9ea9e9f: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."]}}