{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"946906a80963","name":"CYLINDER KIT 40.00mm STD 01-06 POLARIS 50 SCRAMBLER SPORTSMAN PREDATOR","sku":"56-K239.40.CK","brand":"Dirt Racing","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":6,"price":{"amount":44.35,"formatted":"£44.35"},"summary":"Complete 40.00 mm top-end cylinder kit for 50 cc two-stroke Polaris youth ATVs. Includes cylinder, piston, piston rings, gaskets, and cylinder head. Features a 40.00 mm bore cylinder, 10 mm wrist pin compatibility, and 50 mm cylinder stud spacing. Engine type is single-cylinder, two-stroke, air-cooled with a bore x stroke of 40.00 mm x ~39.1 mm (~49 cc). Wrist pin diameter is 10 mm. Cylinder stud spacing is 50 mm centre-to-centre. Spark plug type is NGK BPR7HS. Cross-reference OEM part numbers: Cylinder 0451718, Cylinder head 0451717, Base gasket 0450008, Head gasket 0450003, Piston 0453833, Spark plug 0450005. Not suitable for 90 cc engines which require a 52 mm bore kit.","attributes":[{"label":"General Colour C","value":"Black"},{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Cylinder Kits"},{"label":"General Size","value":"40.00mm"},{"label":"Variant Id","value":"313865"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K239_2E40_2ECK/6580eb631245a063.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K239_2E40_2ECK/6580eb631245a063.jpg","https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-K239_2E40_2ECK/e007268c679a0ba0.jpg"],"description":"Complete 40.00 mm top-end cylinder kit for 50 cc two-stroke Polaris youth ATVs. Includes cylinder, piston, piston rings, gaskets, and cylinder head. Features a 40.00 mm bore cylinder, 10 mm wrist pin compatibility, and 50 mm cylinder stud spacing. Engine type is single-cylinder, two-stroke, air-cooled with a bore x stroke of 40.00 mm x ~39.1 mm (~49 cc). Wrist pin diameter is 10 mm. Cylinder stud spacing is 50 mm centre-to-centre. Spark plug type is NGK BPR7HS. Cross-reference OEM part numbers: Cylinder 0451718, Cylinder head 0451717, Base gasket 0450008, Head gasket 0450003, Piston 0453833, Spark plug 0450005. Not suitable for 90 cc engines which require a 52 mm bore kit.","descriptionMarkdown":"### Complete Cylinder Kit for 50cc Polaris Youth ATVs - 40.00mm Bore\n\nUpgrade your 50cc Polaris youth ATV with this comprehensive top-end cylinder kit. This kit is designed to provide a direct replacement for your original cylinder, piston, rings, gaskets, and cylinder head, ensuring a complete and effective repair or performance enhancement.\n\n**Key Features:**\n\n\t\n- Complete Top-End Kit: Includes cylinder, piston, piston rings, base gasket, head gasket, and cylinder head for a full engine overhaul.\n\t\n- Engine Specific: Engineered for 50 cc two-stroke Polaris youth engines, offering a perfect fit and optimal performance.\n\t\n- Precision Bore: Features a 40.00mm bore for the specified 50cc engine displacement.\n\t\n- Standard Components: Designed for compatibility with 10mm wrist pins and 50mm cylinder stud spacing.\n\t\n- Durable Construction: Built with quality materials for longevity and reliable operation in demanding off-road conditions.\n\n**Specifications:**\n\n\t\n- Engine Type: Single-cylinder, two-stroke, air-cooled\n\t\n- Bore: 40.00mm\n\t\n- Stroke: Approximately 39.1mm\n\t\n- Displacement: Approximately 49cc\n\t\n- Wrist Pin Diameter: 10mm\n\t\n- Cylinder Stud Spacing: 50mm (center-to-center)\n\t\n- Spark Plug Type Compatibility: NGK BPR7HS","weightGrams":null,"fitments":[{"make":"POLARIS","model":"PREDATOR 50","cc":null,"notes":null,"years":"2001–2006"}],"collections":[{"name":"Engine","url":"https://www.2brosparts.com/api/agent/collection/GB/engine"},{"name":"Cylinder Kits","url":"https://www.2brosparts.com/api/agent/collection/GB/cylinder-kits"}],"links":{"page":"https://www.2brosparts.com/products/cylinder-kit-4000mm-std-01-06-polaris-50-scrambler-sportsman-predator","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/946906a80963:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/946906a80963:1"}},"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."]}}