{"product_id":"deatschwerks-dw420-series-420lph-in-tank-fuel-pump-w-universal-install-kit-9-421-1000","title":"DeatschWerks DW420 Series 420lph In-Tank Fuel Pump w\/ Universal Install Kit - 9-421-1000","description":"\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eDeatschWerks DW420 In-Tank Fuel Pump with Universal Install Kit (9-421-1000)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e420 lph in the standard 39mm format — that's the whole point of this pump. Most pumps that flow past 400 lph require a larger body and a hanger that accepts it. The DW420 delivers 400+ lph flow while dropping into the same 39mm footprint as a DW300 or a Walbro 255, so it fits the hanger you already have.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eThe gain comes from an optimized impeller blade count and angle rather than a bigger motor. DeatschWerks engineers the armature for torque bias, delays pressure relief activation, and maximizes impeller efficiency, which produces an extremely flat flow curve — higher flow held at higher pressure, where a boosted engine actually operates.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eComposite single-scroll turbine impeller with a computer-balanced armature gives quiet operation and pulse width modulation compatibility. Ethanol compatibility is built in through carbon commutators and a fully encapsulated armature, with advanced carbon matrix materials for durability on high-ethanol fuel. Every DW pump design goes through 1,000 hours of endurance bench testing across multiple fuels.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eRated 420 lph at 40 psi and 13.5V.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eWiring matters on this one.\u003c\/strong\u003e DeatschWerks strongly recommends a 10-gauge hardwire kit (PN FPHWK-10-HD) to get full voltage to the pump. A factory-gauge pump circuit will cost you flow you paid for.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003e\u003cstrong\u003eNot legal for sale or use in California\u003c\/strong\u003e on pollution-controlled vehicles.\u003c\/p\u003e\n\u003cp class=\"font-claude-response-body break-words whitespace-normal\" dir=\"ltr\"\u003eIncludes the pump and universal install kit. Fits most standard 39mm applications.\u003c\/p\u003e","brand":"Street Strip Supply","offers":[{"title":"Default Title","offer_id":47228682272941,"sku":null,"price":180.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0779\/8105\/7197\/files\/9-421-1000.webp?v=1786805531","url":"https:\/\/streetstripsupply.com\/products\/deatschwerks-dw420-series-420lph-in-tank-fuel-pump-w-universal-install-kit-9-421-1000","provider":"Street Strip Supply","version":"1.0","type":"link"}