SKU: 74893245799

Water Methanol Pump - 557-100

Sale price$197.07 Regular price$218.97
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  • CAN

Ships within 48 hours · Estimated delivery Aug 14 - Aug 19

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Description

Water Methanol Pump - 557-100Overview: Take your forced induction ride to the next level with a Holley water meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water methanol injection, allowing you to safely run on lower octane pump gas! What makes the Holley water methanol system unique and light years ahead of competitive systems, is that the solenoid flow has been characterized within the ECU. Program in an exact flow

Overview:

Take your forced induction ride to the next level with a Holley water/meth injection system! Integrated into the Holley HP and Dominator EFI Systems is the capability to control water/methanol injection, allowing you to safely run on lower octane pump gas! What makes the Holley water/methanol system unique and light years ahead of competitive systems, is that the solenoid flow has been characterized within the ECU. Program in an exact flow amount into the software, and that flow is injected into the engine. This is critical to ensure that neither too little (causing engine damage), nor too much (causing a large loss in power) water/methanol mix is injected into the engine. Select the exact percentage of water/methanol mix to be delivered vs. the percentage of fuel flow present, at any RPM and load. This makes tuning a very simple and accurate process. All components are designed to be compatible with water/methanol mix of up to 50% methanol. The Water/Meth solenoids are run by an injector driver output. If an extra output is not available (as would be the case on a HP ECU driving 8 injectors), PN 554-115 can be purchased that can be driven by a low side PWM output.

Features:

    Application:

    Year Make Model Submodel Engine Size
    Universal

    Specs:

    Amp Draw 7.5A @ 140PSI
    Brand Holley EFI
    Emission Code 5
    Inlet / Outlet Size 3/8" - 18 NPT
    Max Pressure 145 PSI
    Product Type Water Methanol part
    Shipping Notes
    • Free Standard Shipping on $100+ Orders to the USA.
    • Except Preorder products are shipped in 48 hours.
    • Delivery to the USA:
    1. Standard Shipping : 3-10 business days
    • If time is of the essence, please consider selecting expedited delivery for faster service.
    Exchange/Return Notes
    • We offer a 30-day return/exchange service after receiving.
    • Final sale items are not eligible for returns or exchanges.
    • To process your return/exchange, please contact us at [email protected]
    • Please click here for more details>>> Return & Exchange Policy
    SKU: 74893245799

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    4.1 ★★★★★
    Based on 28 reviews
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    Barbara
    Pawtucket, US
    ★★★★★ 5
    Nice!
    Size: Medium, Color: Bright Blue
    My husband loves these. He’s got black, navy, bright blue, burgundy, grey…. and I’m sure I may be missing some! They hold up nicely after repeated washings in cold water in the machine and I always hang to dry. For golf they are fabulous because they are non constricting and comfortable while playing in the hot Florida sun which he does on a daily basis. They run very true to size….he takes his usual medium and they fit perfectly. Highly recommend!
    WAS THIS REVIEW HELPFUL?YesReportShare
    Reviewed in the United States on February 21, 2026
    C
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    Cartripa
    Phoenix, US
    ★★★★★ 5
    nice fit
    I am thoroughly impressed with this Amazon Essentials white shirt. For the price, the quality is outstanding. The fabric feels soft, breathable, and has a good weight to it
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    Reviewed in the United States on June 12, 2026
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    rms
    West Palm Beach, US
    ★★★★★ 5
    Nice shirt, great price.
    Fit Type: Regular Fit, Color: White, Size: Medium
    Worn it twice and I find it very comfortable. I wear it outside and casually to protect my arms and neck from the sun and find it more comfortable than a long sleeve t-shirt. The price is comparable. If I was to wear it to the office it would have to be ironed. I bought one shirt to try it and I will be buying more.
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    Reviewed in the United States on May 8, 2026
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    Verified Purchase
    Anthony Carabello
    Grantham, US
    ★★★★★ 4
    Nice shirt!
    Fit Type: Regular Fit, Color: White, Size: X-Large
    I added one of these shirts to another order just to see if they were any good. I was pleasantly surprised by the quality. It fits perfectly and looks pretty nice for a low cost casual dress shirt. Materials seem decent quality. Comfortable, soft fabric. Didn’t shrink too much in the washer and dryer. We’ll see how it holds up long term but so far so good
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    Reviewed in the United States on November 12, 2025
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    madison
    Pawtucket, US
    ★★★★★ 5
    nice quality
    Fit Type: Regular Fit, Color: White, Size: Small
    nice quality shirt. bought this just so i had at least one nice white button down and it's great. fits well and is a nice white color.
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    Reviewed in the United States on April 11, 2026

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