---
product_id: 698164294
title: "Dorman M39646 New Brake Master Cylinder"
brand: "dorman"
price: "£112.56"
currency: GBP
in_stock: true
reviews_count: 5
category: "Dorman"
url: https://www.desertcart.co.uk/products/698164294-dorman-m39646-new-brake-master-cylinder
store_origin: GB
region: United Kingdom
---

# 100% brand new, not remanufactured Includes reservoirs, caps & fluid sensors Proudly made in the USA Dorman M39646 New Brake Master Cylinder

**Brand:** dorman
**Price:** £112.56
**Availability:** ✅ In Stock

## Summary

> 🚗 Upgrade your brake game with confidence—new, complete, and ready to roll!

## Quick Answers

- **What is this?** Dorman M39646 New Brake Master Cylinder by dorman
- **How much does it cost?** £112.56 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.co.uk](https://www.desertcart.co.uk/products/698164294-dorman-m39646-new-brake-master-cylinder)

## Best For

- dorman enthusiasts

## Why This Product

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

## Key Features

- • **Made in the USA:** Crafted domestically for trusted quality and durability
- • **All-in-One Ready:** Comes complete with reservoirs, caps, and fluid sensors—no extra parts needed
- • **OEM Compatibility:** Fits a wide range of models with multiple OEM part numbers covered
- • **Fresh Off the Line:** Guaranteed new, never remanufactured for peak reliability
- • **Plug & Play Installation:** No assembly required, get back on the road faster

## Overview

The Dorman M39646 Brake Master Cylinder is a brand-new, direct replacement part designed for seamless fit and function. It includes essential reservoirs, caps, and fluid sensors, eliminating the need for additional purchases. Manufactured in the USA, this unit supports multiple OEM part numbers and requires no assembly, making it an ideal choice for professionals seeking reliable, hassle-free brake system upgrades.

## Description

This brake master cylinder is precision-engineered to match the design, function, and performance of the original master cylinder on specific vehicle years, makes and models. It is made of new, high-quality materials for a safe, durable replacement. This part is compatible with the following vehicles. Before purchasing, enter your vehicle trim in the garage tool to confirm fitment. [Chevrolet Blazer: 1992, 1993, 1994] - [Chevrolet C1500 Suburban: 1992, 1993, 1994] - [Chevrolet C1500: 1988, 1989, 1990, 1991, 1992, 1993] - [Chevrolet C2500 Suburban: 1992, 1993, 1994] - [Chevrolet C2500: 1988, 1989, 1990, 1991, 1992, 1993, 1994] - [Chevrolet K1500 Suburban: 1992, 1993, 1994] - [Chevrolet K1500: 1988, 1989, 1990, 1991, 1992, 1993] - [Chevrolet K2500 Suburban: 1992, 1993, 1994] - [Chevrolet K2500: 1988, 1989, 1990, 1991, 1992, 1993, 1994] - [Dodge Ram 1500: 1994] - [GMC C1500 Suburban: 1992, 1993] - [GMC C1500: 1988, 1989, 1990, 1991, 1992, 1993] - [GMC C2500 Suburban: 1992, 1993, 1994] - [GMC C2500: 1988, 1989, 1990, 1991, 1992, 1993, 1994] - [GMC K1500 Suburban: 1992, 1993] - [GMC K1500: 1988, 1989, 1990, 1991, 1992, 1993] - [GMC K2500 Suburban: 1992, 1993, 1994] - [GMC K2500: 1988, 1989, 1990, 1991, 1992, 1993, 1994] - [GMC Yukon: 1992, 1993, 1994]

Review: Fit right on - I primed the unit then put it on then bleed the air out and it worked perfectly.
Review: Cilindro maestro - Me gustó que es esactamente la pieza que necesitaba y la facilidad de instalación

## Features

- New, not remanufactured
- Reservoirs, caps and fluid sensors are supplied in the majority of units

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B001PYTL28 |
| Assembly Required | No |
| Brand | Dorman |
| Brand Name | Dorman |
| Country of Origin | USA |
| Customer Reviews | 4.6 out of 5 stars 337 Reviews |
| Global Trade Identification Number | 00082702399699 |
| Is Assembly Required | No |
| Item Type Name | Dorman - NEW MASTER CYLINDER |
| Item Weight | 0.01 Ounces |
| Manufacturer | Dorman - First Stop |
| Manufacturer Part Number | M39646 |
| Model | M39646 |
| Net Quantity | 1.0 Count |
| OEM Equivalent Part Number | 10-2352; 12219; 13-2352; 130.66021; 131.66021; 174-668; 18M1746; 18M361; 2539646; 783-44021; 83-44021; F116881; M-86021; M900567; MC116881; MC39646; NM2219; 18013977; 18060086; 4746392 |
| OEM Part Number | 10-2352; 12219; 13-2352; 130.66021; 131.66021; 174-668; 18M1746; 18M361; 2539646; 783-44021; 83-44021; F116881; M-86021; M900567; MC116881; MC39646; NM2219; 18013977; 18060086; 4746392 OEM Part Number 10-2352; 12219; 13-2352; 130.66021; 131.66021; 174-668; 18M1746; 18M361; 2539646; 783-44021; 83-44021; F116881; M-86021; M900567; MC116881; MC39646; NM2219; 18013977; 18060086; 4746392 See more |
| UPC | 082702399699 |
| Unit Count | 1.0 Count |
| What Is In the Box | Main component only |

## Images

![Dorman M39646 New Brake Master Cylinder - Image 1](https://m.media-amazon.com/images/I/81uR3s0IowL.jpg)
![Dorman M39646 New Brake Master Cylinder - Image 2](https://m.media-amazon.com/images/I/9177QpMOX8L.jpg)
![Dorman M39646 New Brake Master Cylinder - Image 3](https://m.media-amazon.com/images/I/81n-YKmnVkL.jpg)
![Dorman M39646 New Brake Master Cylinder - Image 4](https://m.media-amazon.com/images/I/81NzFGKUotL.jpg)

## Questions & Answers

**Q: Will this fit an 1989 Silverado?**
A: This fits the following 1989 models
1989 	Chevrolet 	C1500 	Power Brakes; GAS 		w/Heavy Duty Suspension; Bore: 1.125 In. and 1.5781 In.
1989 	Chevrolet 	C2500 	DIESEL 		Bore: 1.125 In.
1989 	Chevrolet 	C2500 	GAS 		7,200 Lb. GVW; Bore: 1.125 In. and 1.5781 In.
1989 	Chevrolet 	K1500 	GAS 		w/Heavy Duty Suspension; Bore: 1.125 In.
1989 	Chevrolet 	K2500 	GAS 		7,200 Lb. GVW; Bore: 1.125 In. and 1.5781 In.
1989 	GMC 	C1500 	Power Brakes; GAS 		w/Heavy Duty Suspension; Bore: 1.125 In. and 1.5781 In.
1989 	GMC 	C2500 	DIESEL 		Bore: 1.125 In.
1989 	GMC 	C2500 	GAS 		7,200 Lb. GVW; Bore: 1.125 In. and 1.5781 In.
1989 	GMC 	K1500 	GAS 		w/Heavy Duty Suspension; Bore: 1.125 In. and 1.5781 In.
1989 	GMC 	K2500 	GAS 		7,200 Lb. GVW; Bore: 1.125 In. and 1.5781 In

**Q: Will this fit a 96 silverado?**
A: No sorry it will not fit your vehicle.

**Q: Does this come with port screws that can be used to bench bleed it?**
A: No. Mine did not come with the screws

**Q: Is this the one that will fit my 95 Silverado with 350 engine**
A: Sorry no it doesn't fit this truck.

## Customer Reviews

### ⭐⭐⭐ Fit right on
*by D***T on 24 August 2024*

I primed the unit then put it on then bleed the air out and it worked perfectly.

### ⭐⭐⭐⭐⭐ Cilindro maestro
*by E***O on 1 October 2024*

Me gustó que es esactamente la pieza que necesitaba y la facilidad de instalación

### ⭐⭐⭐⭐⭐ Worked great!
*by R***Y on 30 March 2026*

I installed this master cylinder in my 94, K2500. It fit perfectly and now my leak is gone.

## Frequently Bought Together

- Dorman M39646 Brake Master Cylinder Compatible with Select Chevrolet / Dodge / GMC Models
- Dorman 13911 Master Cylinder Bleeder Kit - 22 In. Hose, Clip, And Sae And Metric Fittings Universal Fit
- Prestone AS401 DOT 3 Synthetic Brake Fluid - 32 oz.

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*Product available on Desertcart United Kingdom*
*Store origin: GB*
*Last updated: 2026-06-03*