Street. Track. Everything between.
Your garage Find parts for your vehicle Select year, make and model to narrow your search.

Holley Single-Channel EGT Controllers 554-188C Data Acquisition, EFI, Single-channel Module, CAN Controller, Dual CAN Connector Harness, for HP, Dominator, Terminator X EFI, Kit

SKU: HLY554-188C

Data Acquisition

Holley Single-Channel EGT Controllers 554-188C Data Acquisition, EFI, Single-channel Module, CAN Controller, Dual CAN Connector Harness, for HP, Dominator, Terminator X EFI, Kit

SKU: HLY554-188C

Data Acquisition
A$262.11
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.
View cart 0
We accept
American Express
Mastercard
Visa
PayPal Checkout
Direct Deposit
Afterpay
Apple Pay
Google Pay
Zip Pay

Description

Holley Single-Channel EGT controllers are designed for use with a K-type thermocouple using a "mini-K" connector. The module's accurate temperature measurement range is 32-2,282 degrees F (0-1250 C), with an accuracy of +/- 5 degrees F. The module is available in two versions: either CAN 1CH EGT, which is a plug-and-play installation for compatibility with Holley EFI products, such as HP and Dominator EFI systems; or Analog module, 1CH EGT with a "flying lead" with three wires exposed for power, ground, and signal for non-Holley EFI installations. Order the EGT controller suited to your application needs.

Plug-and-Play, 1CH EGT controller features:

* Supplied harness features two CAN connectors (one male, one female) that plug into the Holley main harness (or P/N: 558-412 kit Dominator only)
* LED: Green LED indicator on unit shows solid green color to signify device is operational; flashing LED alerts no thermocouple connected or it failed
* Note: before mounting, it is recommended you record the CAN ID Serial number from the sticker on bottom side of the unit for use during software setup
* Mounting: EGT module is designed to be installed with zip-tie or a pair of #6 or #8 screws
* Software setup
* Important note: Requires software and firmware Version 5 Build 31 or later

Analog module, 1CH EGT controller features:

* Wiring: harness is a "flying lead" with three wires exposed for power, ground, and signal (red wire: power 6.5 V-24.0 V; black wire: ground; and tan wire: Analog output)
* Outputs a 0-5 V and can be used with systems that have configurable 5 V inputs
* LED: Green LED indicator on unit shows solid green color to signify device is operational; flashing LED alerts thermocouple not connected or it failed
* EGT module is designed to be installed with zip-tie or a pair of #6 or #8 screws
* Analog setup: analog output scaling is accurate between 0.5 and 4.5 V and covers temperature range of a K-type thermocouple

Part Type

Data Acquisition

Data: v4.2 - Upd: 2026-10-13 18:47:42

Specifications

Product Attributes - Brand
Holley
Product Attributes - Manufacturer's Part Number
554-188C
Product Attributes - Part Type
Data Acquisition
Product Attributes - Product Line
Holley Single-Channel EGT Controllers
Product Attributes - UPC
090127060230
Product Attributes - Quantity
Sold individually.
Product Attributes - Notes
Single-channel CAN EGT controller. Compatible with HP or Dominator EFI, and Terminator X EFI.

Reference Information

Brand Name/s Holley
StreetFX SKU hly554-188C
SFX Item ID 4782922
Supplier Item Code 4782922
Manufacturer SKU 554-188C
Manufacturer UPC 90127060230
Alternative References HOL554-188C

Compatibility

Loading compatibility information...