{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"6be38faece5a","name":"CYLINDER KIT 2000-2012 YAMAHA KODIAK BEAR 400 5FU-11310-01-00 5FU-11310-00-00","sku":"56-K9999.83.CK","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":2,"price":{"amount":213.6,"formatted":"£213.60"},"summary":"Cylinder kit with bore size STD 83 mm. Piston diameter is 82.9 mm, piston height is 57.5 mm, piston pin diameter is 19 mm, and piston pin height is 58 mm. Package includes 1x cylinder, 1x piston, 5x piston rings, 2x circlips, 1x head gasket, 1x base gasket, 1x gasket maker, and 1x threadlocker. Features unmatched reliability and performance from high-tech materials, manufactured to exacting standards, meets or exceeds OEM quality, and is a direct OEM replacement. Cross reference numbers: Cylinder 5FU-11310-01-00, 5FU-11310-00-00, 4GB-11310-00-00; Piston 4GB-11631-00-Y0; Piston Ring Set 4GB-11610-00-00, 42Y-11610-00-00, 42Y-11610-01-00; Wristpin 51Y-11633-00-00; Circlip(2) 93450-19095-00; Cylinder Head Gasket 1UY-11181-00-00, 1UY-11181-01-00; Cylinder Base Gasket 4KB-11351-00-00, 3GD-11351-00-00; Chain Tensioner Gasket 3GD-12213-00-00; O-Ring 93210-86509-00. Manufacturer: Dirt Racing.","attributes":[{"label":"Variant Id","value":"322633"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K9999_2E83_2ECK/d0f7a6b1737e226c.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K9999_2E83_2ECK/d0f7a6b1737e226c.jpg"],"description":"Cylinder kit with bore size STD 83 mm. Piston diameter is 82.9 mm, piston height is 57.5 mm, piston pin diameter is 19 mm, and piston pin height is 58 mm. Package includes 1x cylinder, 1x piston, 5x piston rings, 2x circlips, 1x head gasket, 1x base gasket, 1x gasket maker, and 1x threadlocker. Features unmatched reliability and performance from high-tech materials, manufactured to exacting standards, meets or exceeds OEM quality, and is a direct OEM replacement. Cross reference numbers: Cylinder 5FU-11310-01-00, 5FU-11310-00-00, 4GB-11310-00-00; Piston 4GB-11631-00-Y0; Piston Ring Set 4GB-11610-00-00, 42Y-11610-00-00, 42Y-11610-01-00; Wristpin 51Y-11633-00-00; Circlip(2) 93450-19095-00; Cylinder Head Gasket 1UY-11181-00-00, 1UY-11181-01-00; Cylinder Base Gasket 4KB-11351-00-00, 3GD-11351-00-00; Chain Tensioner Gasket 3GD-12213-00-00; O-Ring 93210-86509-00. Manufacturer: Dirt Racing.","descriptionMarkdown":"### Cylinder Kit for Yamaha Big Bear 400\n\nThis comprehensive cylinder kit provides a direct OEM replacement for your Yamaha Big Bear 400. Engineered with high-tech materials, it delivers unmatched reliability and performance, meeting or exceeding original equipment specifications. Each component is manufactured to exacting standards, ensuring confidence for a complete engine rebuild. This kit offers the best value for money and is backed by our satisfaction guarantee.\n\n**Key Features:**\n\n\t\n- Unmatched reliability and performance from high-tech materials.\n\t\n- Manufactured to exacting standards for total rebuild confidence.\n\t\n- Meets or exceeds OEM quality.\n\t\n- Direct OEM replacement.\n\t\n- Best value for money.\n\t\n- Easy to install. Professional assistance is recommended if unsure.\n\n**Kit Contents:**\n\n\t\n- 1x Cylinder\n\t\n- 1x Piston\n\t\n- 5x Piston Rings\n\t\n- 2x Circlips\n\t\n- 1x Head Gasket\n\t\n- 1x Base Gasket\n\t\n- 1x Gasket Maker\n\t\n- 1x Threadlocker\n\n**Technical Specifications:**\n\n\t\n- Bore Size: STD 83 mm\n\t\n- Piston diameter: 82.9 mm\n\t\n- Piston height: 57.5 mm\n\t\n- Piston pin diameter: 19 mm\n\t\n- Piston pin height: 58 mm\n\n**Cross Reference Numbers:**\n\n\t\n- Cylinder: 5FU-11310-01-00, 5FU-11310-00-00, 4GB-11310-00-00\n\t\n- Piston: 4GB-11631-00-Y0\n\t\n- Piston Ring Set: 4GB-11610-00-00, 42Y-11610-00-00, 42Y-11610-01-00\n\t\n- Wristpin: 51Y-11633-00-00\n\t\n- Circlip(2): 93450-19095-00\n\t\n- Cylinder Head Gasket: 1UY-11181-00-00, 1UY-11181-01-00\n\t\n- Cylinder Base Gasket: 4KB-11351-00-00, 3GD-11351-00-00\n\t\n- Chain Tensioner Gasket: 3GD-12213-00-00\n\t\n- O-Ring: 93210-86509-00","weightGrams":null,"fitments":[{"make":"YAMAHA","model":"YFM 400 Big Bear","cc":null,"notes":null,"years":"2000–2012"},{"make":"YAMAHA","model":"YFM 400 Kodiak","cc":null,"notes":null,"years":"1993–1999"}],"collections":[],"links":{"page":"https://www.2brosparts.com/products/cylinder-kit-2000-2012-yamaha-kodiak-bear-400-5fu-11310-01-00-5fu-11310-00-00","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/6be38faece5a:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/6be38faece5a: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."]}}