{"product_id":"pompa-gasolio-piaggio-porter-1-4-diesel-1998-2005-originale-cod-850509","title":"Piaggio 850509 Diesel Fuel Pump – Porter 1400 Diesel Pick-up and Van (1998-2005)","description":"\u003cdiv style=\"font-family:'Segoe UI',Arial,sans-serif;max-width:900px;margin:0 auto;color:#222;line-height:1.7;\"\u003e\n\n  \u003cp style=\"font-size:16px;\"\u003eThe \u003cstrong\u003ePiaggio 850509 diesel fuel pump\u003c\/strong\u003e is the \u003cstrong\u003emechanical AC pump\u003c\/strong\u003e that transfers diesel fuel from the tank to the injection pump on the \u003cstrong\u003ePiaggio Porter 1400 Diesel\u003c\/strong\u003e, in the \u003cstrong\u003ePick\u003c\/strong\u003e and \u003cstrong\u003eVan\u003c\/strong\u003e versions produced from \u003cstrong\u003e1998 to 2005\u003c\/strong\u003e. It is not electric: it is mechanically operated by the engine and has a \u003cstrong\u003emanual priming lever\u003c\/strong\u003e to fill the circuit after a filter change or storage. The supply also includes the \u003cstrong\u003esealing O-ring\u003c\/strong\u003e. Code 850509, new original spare part.\u003c\/p\u003e\n\n  \u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003e✓ Strengths\u003c\/h3\u003e\n\n  \u003cul style=\"font-size:15px;\"\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eOriginal Piaggio spare part\u003c\/strong\u003e – not a reconditioned equivalent: many compatible pumps are on the market, this is the one with the manufacturer's code.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eSealing O-ring included\u003c\/strong\u003e – the package includes the sealing ring, verified on the part in stock: many equivalents need to be fitted by reusing the old one or buying the gasket separately.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eManual priming lever\u003c\/strong\u003e – allows you to fill the circuit without having to crank the starter motor for a long time after replacing the diesel filter \u003cem\u003e(observed from the product photograph)\u003c\/em\u003e.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eLight alloy body\u003c\/strong\u003e – silver-coloured casting with membrane dome and two-hole fixing flange \u003cem\u003e(observed from the photograph)\u003c\/em\u003e.\u003c\/li\u003e\n\n    \u003cli\u003e\n\n\u003cstrong\u003eTypical maintenance part\u003c\/strong\u003e – on older Diesel Porters, the AC pump is among the most common causes of difficult starting and loss of power.\u003c\/li\u003e\n\n  \u003c\/ul\u003e\n\n  \u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eTechnical features\u003c\/h3\u003e\n\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBrand\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePiaggio\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePart number (MPN)\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e850509\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eAlternative reference*\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e655.850509\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eType\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMechanical diesel fuel pump (AC pump)\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eActuation\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eMechanical, lever-operated\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePriming**\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eIntegrated manual lever\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eBody material**\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eLight alloy\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eColor**\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eNatural silver, red dome gasket\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eFastening**\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eTwo-hole flange\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003ePackage contents\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1 pump + 1 sealing O-ring\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCondition\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eNew, original Piaggio spare part\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eCountry of origin\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003eItaly\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr style=\"background:#f5f5f5;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e\u003cstrong\u003eWeight***\u003c\/strong\u003e\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e0.4 kg\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003c\/table\u003e\n\n  \u003cp style=\"font-size:13px;color:#666;\"\u003e* alternative code format used by some retailers.\u003cbr\u003e** data observed from the product photograph, not declared in the catalogue.\u003cbr\u003e*** indicative value: weight is not declared in the catalogue. One retailer indicates 0.380 kg for the equivalent pump.\u003c\/p\u003e\n\n  \u003cdiv style=\"background:#fff3cd;border-left:4px solid #ffc107;padding:14px;margin:20px 0;border-radius:4px;\"\u003e\n\n    \u003cstrong\u003e⚠️ Important notes – read before ordering:\u003c\/strong\u003e\u003cbr\u003e\n    • \u003cstrong\u003eBe careful what you buy with this code.\u003c\/strong\u003e Many \u003cem\u003ecompatible\u003c\/em\u003e pumps are on the market, sold under reference 850509: brands such as RMS, BCD 2707\/2, Meat \u0026amp; Doria, Hoffer and Magneti Marelli. This is the \u003cstrong\u003eoriginal Piaggio pump\u003c\/strong\u003e, and it includes the sealing O-ring.\u003cbr\u003e\n    • \u003cstrong\u003eIt is a mechanical pump, not electric.\u003c\/strong\u003e It must be mounted on the engine and driven by the shaft: it is not a submerged pump in the tank.\u003cbr\u003e\n    • \u003cstrong\u003eSome retailers also list it for the Porter 1200 Diesel.\u003c\/strong\u003e This is a common commercial indication but not present in our official assignment sheet: if you have a 1200, \u003cstrong\u003econtact us for more information\u003c\/strong\u003e and we will verify it before your order.\u003cbr\u003e\n    • After mounting, remember to \u003cstrong\u003ebleed the circuit\u003c\/strong\u003e with the priming lever and check that there are no leaks from the flange.\n  \u003c\/div\u003e\n\n  \u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eVehicle compatibility\u003c\/h3\u003e\n\n  \u003ctable style=\"width:100%;border-collapse:collapse;font-size:14px;\"\u003e\n\n    \u003ctr style=\"background:#e63946;color:#fff;\"\u003e\n\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eModel\u003c\/th\u003e\n\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eEngine\u003c\/th\u003e\n\n\u003cth style=\"padding:8px;border:1px solid #ddd;\"\u003eYears\u003c\/th\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePiaggio Porter Pick\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1400 cc Diesel\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1998-2005\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n    \u003ctr style=\"background:#f9f9f9;\"\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003ePiaggio Porter Van\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1400 cc Diesel\u003c\/td\u003e\n\n\u003ctd style=\"padding:8px;border:1px solid #ddd;\"\u003e1998-2005\u003c\/td\u003e\n\n\n\u003c\/tr\u003e\n\n  \u003c\/table\u003e\n\n  \u003cp style=\"font-size:15px;\"\u003eDo you have a Porter from a different year or trim and are unsure? \u003cstrong\u003eContact us for more information\u003c\/strong\u003e: with the chassis number, we can verify the exact code for your vehicle before you order.\u003c\/p\u003e\n\n  \u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eWho it's perfect for\u003c\/h3\u003e\n\n  \u003cp style=\"font-size:15px;\"\u003eIt's the right spare part for anyone who has a \u003cstrong\u003eDiesel Porter that starts with difficulty, loses power uphill, or stalls under load\u003c\/strong\u003e and has already ruled out filter and hoses. It's for workshops working on light commercial vehicles and small tradespeople who use their Porter every day for work and cannot afford for it to be out of service: fitting the original part instead of a compatible pump means not having to revisit it after a few months.\u003c\/p\u003e\n\n  \u003cdiv style=\"background:#f0f7f0;border-left:4px solid #28a745;padding:14px;margin:20px 0;border-radius:4px;\"\u003e\n\n    \u003cstrong\u003e🛡️ Warranty and quality – Moon Bike S.r.l.\u003c\/strong\u003e\u003cbr\u003e\n    \u003cstrong\u003eOriginal Piaggio\u003c\/strong\u003e product. Moon Bike S.r.l. is an authorized Piaggio and Aprilia dealer based in Cercola (NA). New, never mounted spare part, covered by the manufacturer's warranty and shipped from Italy. For assistance with your order or installation, \u003cstrong\u003econtact us for more information\u003c\/strong\u003e: our spare parts desk will answer you directly.\n  \u003c\/div\u003e\n\n  \u003ch3 style=\"color:#1a1a1a;border-bottom:2px solid #e63946;padding-bottom:6px;\"\u003eFrequently asked questions\u003c\/h3\u003e\n\n  \u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eHow do I know if my Porter's fuel pump needs replacing?\u003c\/strong\u003e\u003cbr\u003e\n  Typical symptoms include long or difficult starting, especially when cold, loss of power under load, sudden stalling, and the need to prime by hand frequently. Before replacing it, it's advisable to rule out a clogged diesel filter, cracked hoses that draw air, and a dirty pre-filter, which produce very similar symptoms.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eIs this pump original Piaggio or an equivalent?\u003c\/strong\u003e\u003cbr\u003e\n  It is the original Piaggio spare part with code 850509, also reported by some retailers as 655.850509. Many compatible pumps with the same reference are available on the market – RMS, BCD 2707\/2, Meat \u0026amp; Doria, Hoffer – which cost less but are not the manufacturer's part.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eIs the O-ring included in the supply?\u003c\/strong\u003e\u003cbr\u003e\n  Yes. The package includes the pump and its sealing O-ring, which we have verified directly on the part in stock. This is a significant difference compared to several equivalents, which arrive without a gasket and force you to reuse the old one or order it separately.\u003c\/p\u003e\n\n  \u003cp style=\"font-size:15px;\"\u003e\u003cstrong\u003eDo I need to bleed the system after installing it?\u003c\/strong\u003e\u003cbr\u003e\n  Yes. After replacing the pump, the circuit contains air: use the manual priming lever to fill it until the diesel fuel runs clean, then start the engine and check for leaks from the mounting flange and connections. For any doubts about installation, \u003cstrong\u003econtact us for more information\u003c\/strong\u003e.\u003c\/p\u003e\n\n\n\u003c\/div\u003e","brand":"Piaggio","offers":[{"title":"Default Title","offer_id":58619277410652,"sku":"850509","price":52.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0966\/3660\/0668\/files\/piaggio-850509-pompa-alimentazione-gasolio-porter-1400-diesel.png?v=1786477546","url":"https:\/\/www.moonbikesrl.it\/en-gb\/products\/pompa-gasolio-piaggio-porter-1-4-diesel-1998-2005-originale-cod-850509","provider":"Moon Bike S.r.l.","version":"1.0","type":"link"}