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Holley Water/Methanol Injection Pumps

5.0 out of 5 stars 1 Customer Reviews

Holley water/methanol injection pumps help to increase the power of your engine. They make great replacements for most water/methanol kits. Or you can use them when creating your own special setup. The pumps are designed with high-quality diaphragms and EPDM seals to withstand the harshest of alcohol mixes.

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Holley Water/Methanol Injection Pumps 557-100

Injection Pumps, Holley EFI, Water/Methanol Pump, 200 psi, 3/8 in. Inlet/Outlet, with Mounting Bracket, Each

Part Number: HLY-557-100

5.0 out of 5 stars ( 1 )

Estimated Ship Date: May 11, 2026 if ordered today

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Estimated Ship Date: May 11, 2026 if ordered today

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