# Edelbrock Chevrolet LS III Pro-Flo 4+ EFI Knock Sensor Harness

This Knock Sensor Harness is an auxillary support item for Pro Flo 4 Plus Chevrolet LS 3 EFI Systems. This Harness will plug into the Pro Flo 4 Plus Chevrolet LS 3 Main Engine Harness Connector labeled Knock.

-   Resists Discoloration From Heat

This Part Fits:

Year

Make

Model

Submodel

2004

Chevrolet

Express 1500

Base

2004

Chevrolet

Express 1500

LS

## Details

- **Price:** 105.45 CAD
- **Vendor:** Edelbrock
- **Type:** Wiring Harnesses

## Variants

| Variant | Price | Available |
|---------|-------|-----------|
| Default Title | 105.45 CAD | In stock |

## Images

- Photo - Primary
- User 1

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> Source: [Standard Auto Part](https://www.standardautopart.com/products/edelbrock-chevrolet-ls-iii-pro-flo-4-efi-knock-sensor-harness)
> Updated: 2026-06-27