{"product_id":"fuel-supply-pump-21089217-for-mack-engine-e6-e7","title":"Fuel Supply Pump 21089217 for Mack Engine E6 E7","description":"\u003cp\u003eThe Mack E6 and E7 are iconic American inline-6 diesel engines that powered Mack's legendary heavy trucks for decades — from long-haul semis and dump trucks to mixer trucks and vocational vehicles. The fuel supply pump (also known as a lift pump or transfer pump) is responsible for drawing fuel from the tank and delivering it at low pressure to the injection pump. When it fails, you'll experience hard starts, fuel starvation, engine stalling, and in severe cases a no-start condition. This brand-new replacement fuel supply pump covers seven cross-reference part numbers including Mack OEM \u003cstrong\u003e21089217\u003c\/strong\u003e and Bosch \u003cstrong\u003e0440020036\u003c\/strong\u003e, engineered to restore correct fuel transfer and reliable engine operation.\u003c\/p\u003e\n\n\u003ch3\u003e✅ Direct-Fit Compatibility\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eMack Engines:\u003c\/strong\u003e E6, E7\u003c\/li\u003e\n  \u003cli\u003eSuitable for Mack heavy trucks and vocational vehicles fitted with the E6 or E7 engine\u003c\/li\u003e\n  \u003cli\u003eDirect replacement — no modifications required\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🔧 Product Highlights\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003e100% Brand New Replacement:\u003c\/strong\u003e Not rebuilt or refurbished — starts with a full service life\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOEM-Spec Fuel Transfer:\u003c\/strong\u003e Correct flow rate and pressure for reliable fuel delivery to the injection pump across all engine speeds and loads\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eBosch-Type Design:\u003c\/strong\u003e Covers Bosch OEM numbers (0440020036, 0440020006, 0440020001) for confirmed fitment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003e7 Cross-Reference Part Numbers:\u003c\/strong\u003e Covers Mack OEM (21089217, 21051407, 21089317, 25099005) and Bosch formats for confirmed fitment\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eE6 and E7 Coverage:\u003c\/strong\u003e Fits both Mack engine variants in a single part number\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eNo Dealer Markup:\u003c\/strong\u003e OEM-equivalent quality at aftermarket pricing\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e📦 What's Included\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e1 × Fuel Supply Pump (21089217)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003e🔑 Key Specs\u003c\/h3\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Numbers:\u003c\/strong\u003e 21089217, 21051407, 21089317, 25099005, 0440020036, 0440020006, 0440020001\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCondition:\u003c\/strong\u003e 100% New Replacement\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFitment:\u003c\/strong\u003e Mack E6 \/ E7 engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003e\u003cem\u003ePlease verify your engine serial number and existing part number before ordering. Contact us for fitment confirmation if needed.\u003c\/em\u003e\u003c\/p\u003e","brand":"Fuel Parts Depot","offers":[{"title":"Default Title","offer_id":47128131731612,"sku":"21089217","price":105.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0705\/7843\/8300\/files\/rpn2421942_2__1752571710.png?v=1782789222","url":"https:\/\/fuelpartsdepot.com\/en-gb\/products\/fuel-supply-pump-21089217-for-mack-engine-e6-e7","provider":"Fuel Parts Depot","version":"1.0","type":"link"}