---
product_id: 393780453
title: "General Motors GM Genuine Parts 178-0856 Power Brake Booster Vacuum Sensor"
brand: "gm genuine parts"
price: "€ 73.63"
currency: EUR
in_stock: true
reviews_count: 5
category: "Gm Genuine Parts"
url: https://www.desertcart.sk/products/393780453-general-motors-gm-genuine-parts-178-0856-power-brake-booster
store_origin: SK
region: Slovakia
---

# Durable GM-grade build Direct GM vehicle compatibility OEM precision fit General Motors GM Genuine Parts 178-0856 Power Brake Booster Vacuum Sensor

**Brand:** gm genuine parts
**Price:** € 73.63
**Availability:** ✅ In Stock

## Summary

> 🚦 Stop with confidence—GM Genuine Parts power your safety!

## Quick Answers

- **What is this?** General Motors GM Genuine Parts 178-0856 Power Brake Booster Vacuum Sensor by gm genuine parts
- **How much does it cost?** € 73.63 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.sk](https://www.desertcart.sk/products/393780453-general-motors-gm-genuine-parts-178-0856-power-brake-booster)

## Best For

- gm genuine parts enthusiasts

## Why This Product

- Trusted gm genuine parts brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Top-Ranked Brake Sensor:** Ranked #28 in Car Power Brake Systems for reliability
- • **Cost-Effective OEM Quality:** Save up to 70% vs dealership parts without compromise
- • **Lightweight Yet Robust Design:** Only 30g with machined exterior for lasting durability
- • **Trusted GM-Recommended Replacement:** Maintain factory-level braking performance
- • **Precision Engineered for GM Vehicles:** Seamless OEM fit, form, and function guaranteed

## Overview

The GM Genuine Parts 178-0856 Power Brake Booster Vacuum Sensor is a factory-spec replacement sensor designed to detect pressure issues in your GM vehicle’s power brake booster. Manufactured by ACDelco to GM OE standards, it ensures perfect fit, durability, and reliable braking performance at a fraction of dealership cost.

## Description

The ACDelco GM Original Equipment Power Brake Booster Sensor detects pressure issues within the power brake booster, and is a GM-recommended replacement for your vehicle's original components. This power brake booster sensor has been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors.

Review: Llegó antes de lo planeado, es pieza original
Review: This part fixed my breaking issue on my 2011 Chevy Traverse and was 1/3 the cost of the dealership. Was the exact same OEM park from Chevy. Would buy again, hopefully wont have to.

## Features

- GM-recommended replacement part for your GM vehicle’s original factory component
- Offering the quality, reliability, and durability of GM OE
- Manufactured with GM Original Equipment specification for fit, form, and function

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B007QBK58I |
| Best Sellers Rank | #89,492 in Automotive ( See Top 100 in Automotive ) #28 in Car Power Brake Systems |
| Brand | GM GENUINE PARTS |
| Customer Reviews | 4.2 4.2 out of 5 stars (28) |
| Date First Available | 21 September 2023 |
| Exterior | Machined |
| Item Weight | 30 g |
| Item model number | 178-0856 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 20876877 |
| Model | Sensor Kit-P/B Boos Vac |
| OEM Part Number | 20876877 |
| Product Dimensions | 15.24 x 15.24 x 2.54 cm; 30 g |

## Product Details

- **Brand:** GM GENUINE PARTS
- **Item dimensions L x W x H:** 15.2 x 15.2 x 2.5 centimeters
- **Material:** Metal
- **Measurement accuracy:** ±1%
- **Style:** Modern

## Images

![General Motors GM Genuine Parts 178-0856 Power Brake Booster Vacuum Sensor - Image 1](https://m.media-amazon.com/images/I/416WX4z0PLL.jpg)

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by R***O on 3 June 2023*

Llegó antes de lo planeado, es pieza original

### ⭐⭐⭐⭐⭐ Review
*by C***C on 19 February 2025*

This part fixed my breaking issue on my 2011 Chevy Traverse and was 1/3 the cost of the dealership. Was the exact same OEM park from Chevy. Would buy again, hopefully wont have to.

### ⭐⭐⭐⭐⭐ Review
*by G***K on 12 November 2022*

My Brake light came on intermittently and said traction control off. Service brake system. Had the code read. C1100. It recommended changing this sensor. 2011 Chevy traverse. This the exact OEM Bosch part that I removed. Thanks!

## Frequently Bought Together

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**Shop now:** [https://www.desertcart.sk/products/393780453-general-motors-gm-genuine-parts-178-0856-power-brake-booster](https://www.desertcart.sk/products/393780453-general-motors-gm-genuine-parts-178-0856-power-brake-booster)

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*Product available on Desertcart Slovakia*
*Store origin: SK*
*Last updated: 2026-03-04*