Description
Upgrade your fuel system the smart way with the Holley 19-342 In-Tank EFI Fuel Pump Module. This 255 LPH universal in-tank pump is ideal for LS swaps, EFI retrofits, or performance builds needing reliable, quiet fuel delivery. Designed to drop into almost any tank with a 6-bolt, 2.75″ flange (common on many factory and aftermarket tanks), this module simplifies plumbing and helps eliminate vapor lock.
The Holley 19-342 is a return-style unit with an internal pressure regulator preset to 58.5 psi (4 BAR), making it plug-and-play for most factory and aftermarket EFI systems including GM LS platforms.
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255 LPH (67 gph) EFI pump supports up to 550 EFI horsepower (N/A applications)
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Integrated 58.5 PSI regulator—great for return-style EFI setups including LS swaps
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Universal fit for fuel tanks with a 6-bolt, 2.75″ bolt circle
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Barbed outlet (3/8”) and return (5/16”) fittings included
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Quiet, reliable turbine pump design reduces noise vs. external setups
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Compatible with gas or E85
Condition: New Open Box – Item is unused, opened for inspection, complete with all components. May ship in plain or shelf-worn packaging. No manufacturer warranty.
Whether you’re fuel-injecting a classic or feeding your LS swap, Holley 19-342 is a clean, dependable solution for modern EFI power.
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