{"about":"Prices are for United Kingdom in GBP. Every URL here is a plain path you can fetch directly.","product":{"basketKey":"b8f032993dd6","name":"PISTON 94-00 POLARIS 300 75.50, NAMURA NA-50003-4 KIT ATV","sku":"56-W164_100.NT","brand":"Namura Technologies","mpn":null,"gtin":null,"condition":"new","inStock":true,"stock":4,"price":{"amount":83.52,"formatted":"£83.52"},"summary":"Namura Piston Assembly. 75.50mm Bore. NA-50003-4. High-performance Namura pistons engineered in the USA, manufactured in Taiwan. High-silicon content Hypereutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing. Machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy. Hard anodized crowns are 75% stronger than non-anodized, providing minimal expansion and reducing the chance of cold seizures when combined with Teflon/Molybdenum coated skirts. MOS2 (Teflon/Molybdenum) coated skirts reduce friction and heat for added power and longevity. Namura rings match the OEM design. Fractional oversize pistons available for some applications to extend cylinder life by renewing original clearance. Weight: 436g.","attributes":[{"label":"General Product Group","value":"Engine"},{"label":"General Product Type","value":"Pistons & Kits"},{"label":"General Size","value":"75.5mm"},{"label":"Variant Id","value":"254797"}],"image":"https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W164_5F100_2ENT/c80580f4bd823534.jpg","images":["https://b69270dd6ab1.blob.upstash.io/oracle/oro2u/56-W164_5F100_2ENT/c80580f4bd823534.jpg"],"description":"Namura Piston Assembly. 75.50mm Bore. NA-50003-4. High-performance Namura pistons engineered in the USA, manufactured in Taiwan. High-silicon content Hypereutectic cast aluminum material for less heat expansion, tighter clearances, increased hardness, longer life and reduced scuffing. Machined, smooth piston crowns for reduced carbon buildup, increased horsepower and fuel economy. Hard anodized crowns are 75% stronger than non-anodized, providing minimal expansion and reducing the chance of cold seizures when combined with Teflon/Molybdenum coated skirts. MOS2 (Teflon/Molybdenum) coated skirts reduce friction and heat for added power and longevity. Namura rings match the OEM design. Fractional oversize pistons available for some applications to extend cylinder life by renewing original clearance. Weight: 436g.","descriptionMarkdown":"### Namura Piston Assembly - 75.50mm Bore\n\nEnhance your vehicle's performance and longevity with this high-performance Namura Piston Assembly. Engineered in the USA and manufactured in Taiwan, this piston is designed for superior operation and durability.\n\n#### Key Features:\n\n \n- Material: Constructed from high-silicon content Hypereutectic cast aluminum for reduced heat expansion, tighter clearances, increased hardness, longer life, and reduced scuffing.\n \n- Piston Crown: Features machined, smooth piston crowns designed to reduce carbon buildup, increasing horsepower and fuel economy.\n \n- Hard Anodized Crowns: Offer 75% greater strength than non-anodized crowns, providing minimal expansion and reducing the risk of cold seizures, especially when paired with Teflon/Molybdenum coated skirts.\n \n- MOS2 Coated Skirts: Teflon/Molybdenum coated skirts ensure top performance by reducing friction and heat, contributing to added power and extended longevity.\n \n- Ring Design: Namura rings are designed to match OEM specifications.\n \n- Oversize Options: Fractional oversize pistons (-B and -C) are available for select applications, allowing you to extend the life of your cylinder by restoring original clearances.\n \n- Bore Size: 75.50mm","weightGrams":null,"fitments":[],"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-94-00-polaris-300-7550-namura-na-50003-4-kit-atv","buyOneNow":"https://www.2brosparts.com/api/agent/checkout/GB/b8f032993dd6:1","basketWithThis":"https://www.2brosparts.com/api/agent/basket/GB/b8f032993dd6:1"}},"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."]}}