Home / Shop / Holley Water/Methanol Injection System Installation Kits 557-101 Reservoirs, EFI, 1/2 Gallon, Plastic, 6 in. Wide x 4 in. Deep x 5 in. Tall, with Float, Filter, Tubing, Relay, Fittings, Kit

Holley Water/Methanol Injection System Installation Kits 557-101 Reservoirs, EFI, 1/2 Gallon, Plastic, 6 in. Wide x 4 in. Deep x 5 in. Tall, with Float, Filter, Tubing, Relay, Fittings, Kit

SKU: HLY557-101

Water/Methanol Injection System Reservoirs

Holley

Holley Water/Methanol Injection System Installation Kits 557-101 Reservoirs, EFI, 1/2 Gallon, Plastic, 6 in. Wide x 4 in. Deep x 5 in. Tall, with Float, Filter, Tubing, Relay, Fittings, Kit

SKU: HLY557-101

Water/Methanol Injection System Reservoirs

Special Order. Contact for ETA. This item is out of stock in our warehouse and partner distribution centres. In some cases, this may be due to not having live inventory feeds available for all suppliers. Please contact us before ordering if you need to meet a specific deadline.

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Description

Holley water/methanol injection system installation kits are designed for use with Holley HP and Dominator EFI systems. They are programmed for 100 percent water and up to a 50/50 percent mixture of water and methanol--never use more than 50 percent methanol in the mixture, or damage to components may result. These are installation kits only; a pump and solenoid(s) are required, as well.

Kits include:

* Reservoir
* Low-level float
* Filter
* Tubing
* Relay
* Relay wiring fuse
* Warning LED
* Fittings

Part Type

Water/Methanol Injection System Reservoirs

Data: v4.2 - Upd: 2026-10-13 18:47:39

Specifications

Product Attributes - Brand: Holley
Product Attributes - Manufacturer's Part Number: 557-101
Product Attributes - Part Type: Water/Methanol Injection System Reservoirs
Product Attributes - Product Line: Holley Water/Methanol Injection System Installation Kits
Product Attributes - UPC: 090127669334
Product Attributes - Reservoir Volume: 1/2 gallon
Product Attributes - Reservoir Material: Plastic
Product Attributes - Quantity: Sold as a kit.

Reference Information

Brand Name/s	Holley
StreetFX SKU	hly557-101
SFX Item ID	4783212
Supplier Item Code	4783212
Manufacturer SKU	557-101
Manufacturer UPC	90127669334
Alternative References	HOL557-101

Compatibility

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Holley Water/Methanol Injection System Installation Kits 557-101 Reservoirs, EFI, 1/2 Gallon, Plastic, 6 in. Wide x 4 in. Deep x 5 in. Tall, with Float, Filter, Tubing, Relay, Fittings, Kit

Holley Water/Methanol Injection System Installation Kits 557-101 Reservoirs, EFI, 1/2 Gallon, Plastic, 6 in. Wide x 4 in. Deep x 5 in. Tall, with Float, Filter, Tubing, Relay, Fittings, Kit

Description

Part Type

Specifications

Reference Information

Compatibility

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