{"product_id":"carbole-12v-electric-diesel-fuel-pump-super-12d-5-9-psi-35-gph-in-tank-booster-for-carbureted-engines","title":"CarBole 12V Electric Diesel Fuel Pump Super 12D — 5–9 PSI, 35 GPH In‑Tank Booster for Carbureted Engines","description":"\u003cp\u003e\u003cstrong\u003eCarBole Super 12D is a 12‑volt electric diesel fuel pump delivering 5–9 PSI and 35 GPH for carbureted 4, 6 and 8‑cylinder engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis compact, universal pump is built to replace or upgrade carbureted diesel fuel systems. It provides steady low pressure and a reliable flow rate to reduce vapor lock and flooding in older diesel setups, and it doubles as a transfer or booster pump when mounted inside a fuel tank. Note: it’s designed specifically for diesel carburetor systems and not for fuel-injected engines or alcohol blends such as E85.\u003c\/p\u003e\n\n\u003ch3\u003eHow does this pump fit into my diesel carbureted engine?\u003c\/h3\u003e\n\u003cp\u003eThe Super 12D is sized and rated for typical carburetor fuel demands on 4, 6 and 8‑cylinder diesel engines. It mounts within the fuel tank area and connects to standard 5\/16\" I.D. fuel hose, making installation straightforward on compatible systems.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eFuel pressure range: 5–9 PSI suitable for carbureted setups\u003c\/li\u003e\n  \u003cli\u003eFlow rate: 35 GPH for consistent supply under load\u003c\/li\u003e\n  \u003cli\u003e5\/16\" inlet\/outlet fittings fit common hose sizes\u003c\/li\u003e\n  \u003cli\u003eDesigned for in‑tank mounting within 12\" of the pump\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this pump prevent vapor lock and improve starting?\u003c\/h3\u003e\n\u003cp\u003eBy maintaining steady low pressure and consistent flow, the Super 12D reduces the likelihood of vapor pockets that cause vapor lock in older diesel systems. It also helps avoid carburetor flooding by providing a controlled, even fuel delivery.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eStable 5–9 PSI minimizes fuel vapor formation\u003c\/li\u003e\n  \u003cli\u003e35 GPH keeps fuel lines filled under varying engine demand\u003c\/li\u003e\n  \u003cli\u003eWorks well as a booster to improve delivery in long or elevated runs\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow do I install and hook up the CarBole pump?\u003c\/h3\u003e\n\u003cp\u003eInstallation requires mounting the pump inside or very near the fuel tank, within 12 inches of the tank wall, and connecting 5\/16\" I.D. fuel hose to the inlet and outlet. Use correct electrical wiring for 12V pumps and secure all fittings to prevent leaks.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eMount within 12\" of the fuel tank for optimal operation\u003c\/li\u003e\n  \u003cli\u003eUse 5\/16\" I.D. diesel‑rated hose on inlet and outlet\u003c\/li\u003e\n  \u003cli\u003eWire to a 12V supply with proper fuse and switch per vehicle wiring standards\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat are the limitations and what should I avoid?\u003c\/h3\u003e\n\u003cp\u003eThe Super 12D is not compatible with fuel‑injected engines or corrosive fuels. Avoid using gasoline blends with high alcohol content (E85, ethanol, methanol) or other harsh liquids that can damage internal components. It’s intended for diesel applications only.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNot for fuel‑injected systems or high‑pressure injection rails\u003c\/li\u003e\n  \u003cli\u003eDo not use with E85, ethanol, methanol, or aggressive solvents\u003c\/li\u003e\n  \u003cli\u003eEnsure hose and clamps are diesel‑rated to prevent deterioration\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The CarBole Super 12D is aimed at owners and mechanics of older diesel vehicles with carburetors, hobbyists restoring diesel tractors or marine engines, and anyone needing a compact in‑tank transfer or booster pump for diesel applications. If you have a fuel‑injected setup or require alcohol‑compatible pumps, choose a product specified for those fuels instead.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Is this pump suitable for fuel-injected diesel engines?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: No. The Super 12D is for carbureted diesel engines only and not compatible with fuel injection systems.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: What hose size do I need for installation?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Use 5\/16\" I.D. diesel‑rated fuel hose for both the inlet and outlet fittings.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"CarBole","offers":[{"title":"Default Title","offer_id":48087604035742,"sku":"B09GVDS2GS","price":40.98,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/carbole-super-12d-front-view_jpg.jpg?v=1785926452","url":"https:\/\/northtrailauto.ca\/products\/carbole-12v-electric-diesel-fuel-pump-super-12d-5-9-psi-35-gph-in-tank-booster-for-carbureted-engines","provider":"North Trail Auto","version":"1.0","type":"link"}