Exterior Components› Body Panels and Components

Holley

1/4 EGT Probe - Open Tip 90-Degree 32.25in Length

$133.95

SKU: H00E 554-178

In Stock
In Stock
Ships by Jul 30
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Non-Returnable Item
INSTALL DIFFICULTY
DIY PRO SHOP

Moderate — 2–4 hours

Description

The Holley EFI 554-178 is an Exhaust Gas Temperature (EGT) sensor designed for performance applications. It features an open tip probe with a 90-degree angle and a 1/4-inch diameter. The sensor includes a 32-1/4 inch wire and a single terminal.

This sensor is built to high standards and is suitable for monitoring various temperatures, including exhaust gas.

Fitment

Fitment Guaranteed

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Log your build in the MOTORMIA app and we’ll guarantee this part fits your exact setup — or your money back, return shipping covered.

Available on iOS & Android

Specifications

BrandHolley
Part NumberH00E 554-178
Weight0.19 lb

Buy with Confidence

Built for enthusiasts. Every order is backed by our 30 day return window on eligible items. Unused and uninstalled products may be returned with approved RMA and no restocking fees when received in new condition. Orders placed through the MOTORMIA app with a complete build qualify for our Fitment Guarantee — free return shipping if the part doesn’t fit your exact setup. The guarantee covers fit only; installation must follow manufacturer instructions, and we recommend a qualified shop for parts marked Difficulty 4–5.

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