---
product_id: 560343489
title: "Stp 17921 Synthetic Dot 4 Brake Fluid, 12 Fl. Oz."
brand: "stp"
price: "$20.48"
currency: USD
in_stock: false
reviews_count: 5
category: "Stp"
url: https://www.desertcart.us/products/560343489-stp-17921-synthetic-dot-4-brake-fluid-12-fl-oz
store_origin: US
region: United States of America
---

# Prevents vapor lock brake failure High dry boiling point Corrosion protection Stp 17921 Synthetic Dot 4 Brake Fluid, 12 Fl. Oz.

**Brand:** stp
**Price:** $20.48
**Availability:** ❌ Out of Stock

## Summary

> 🛑 Stop at nothing with STP DOT 4 – brake fluid engineered for the fearless driver!

## Quick Answers

- **What is this?** Stp 17921 Synthetic Dot 4 Brake Fluid, 12 Fl. Oz. by stp
- **How much does it cost?** $20.48 with free shipping
- **Is it available?** Currently out of stock
- **Where can I buy it?** [www.desertcart.us](https://www.desertcart.us/products/560343489-stp-17921-synthetic-dot-4-brake-fluid-12-fl-oz)

## Best For

- stp enthusiasts

## Why This Product

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

## Key Features

- • **Trusted by Thousands:** Highly rated with 4.8 stars from over 500 users—quality and value you can count on
- • **Vapor Lock? Not Here!:** Minimizes brake failure risk by combating vapor lock effectively
- • **Unmatched Heat Resistance:** Boosts dry boiling point for peak braking reliability under pressure
- • **Optimized for Modern Vehicles:** Specifically designed for disc and drum brake systems in today’s cars and trucks
- • **Ultimate Brake System Defense:** Formulated to prevent corrosion and extend brake component life

## Overview

STP 17921 Synthetic DOT 4 Brake Fluid is a premium, high-performance brake fluid designed to increase dry boiling point, prevent vapor lock, and protect brake systems from corrosion. Ideal for modern disc and drum brakes, it ensures reliable stopping power and longevity, backed by outstanding user ratings and trusted automotive brand STP.

## Description

As your brake pads wear, the level of brake fluid drops. STP Synthetic Brake Fluid DOT 4 is specially formulated to get optimum performance out of disc or drum brake systems in today’s cars and trucks.

Review: Great product it highly recommend it for the quality & the value it has the marks in all areas.
Review: Works really well, nice product.

## Features

- Increases dry boiling point to ensure maximum life and reliable braking power
- Helps provide protection against brake failure from vapor lock
- Helps prevent corrosion in brake system

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B01E6DIFQM |
| Best Sellers Rank | #7,426 in Automotive ( See Top 100 in Automotive ) #149 in Automotive Oils |
| Brand | STP |
| Customer Reviews | 4.8 4.8 out of 5 stars (501) |
| Date First Available | 25 August 2020 |
| Item Weight | 354 g |
| Item model number | 18670 |
| Manufacturer | STP |
| Manufacturer Part Number | 17921 |
| Model | STP Brk Fld DOT4 BTL 6/12fo US |
| Product Dimensions | 7 x 7 x 14 cm; 354 g |
| Viscosity | Controlled, Optimum Viscosity for DOT 4 Brake Fluid |

## Product Details

- **Brand:** STP
- **Item weight:** 0.35 Kilograms
- **Liquid volume:** 12 Fluid Ounces
- **Material:** Synthetic,Abs
- **Package information:** Bottle

## Images

![Stp 17921 Synthetic Dot 4 Brake Fluid, 12 Fl. Oz. - Image 1](https://m.media-amazon.com/images/I/71MQ4MTD-dL.jpg)

## Available Options

This product comes in different **Style** options.

## Questions & Answers

**Q: Is this good for a 2003 Chevy Blazer?**
A: As long as your blazer requires dot 3 brake fluid it should work fine. I used it in a 2011 f150.

**Q: is this a synthetic brake fluid? i need original non synthetic dot iii brake fluid and can't seem to find it.**
A: Kindly note that you can find the original one, it's distributed nationally through the largest retail, discount, auto, and convenience store chains. And it's Clean all dirt from around cover on master cylinder before removing. Fill unit to level specified by manufacturer. Replace cover. Check fluid level once a month.

**Q: Can I use this in my 1991 Cadillac Brougham?**
A: I don't know for certain, but check the DOT specification recommended in your owner's manual. The DOT specification also may be indicated somewhere on the reservoir cover

**Q: Can this be use For Honda Civic si sedan 2015?**
A: I'm not. ... FON---DA  OF. HONDA ,😱 SO I DON'T KNOW.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Review
*by C***W on 20 January 2026*

Great product it highly recommend it for the quality & the value it has the marks in all areas.

### ⭐⭐⭐⭐⭐ Review
*by R***A on 18 January 2026*

Works really well, nice product.

### ⭐⭐⭐⭐⭐ Review
*by A***R on 16 December 2025*

Great value

## Frequently Bought Together

- STP Synthetic Brake Fluid, Dot 4 Brake Fluid Protects Brake Systems, ABS, Disc and Drum Systems, 12 Oz, STP
- PEAK 50/50 Prediluted Antifreeze and Coolant for All Engine Cooling Systems

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*Product available on Desertcart United States of America*
*Store origin: US*
*Last updated: 2026-02-26*